Part 1 of 4: Buying a 10-Year-Old 19' Electric Scissor Lift at Auction – What a Contractor Should Budget For

If you’re an electrician (or any contractor) who just bought a 10-year-old Genie GS-1930 or JLG 1930ES 19' electric scissor lift at auction, this four-part series will walk you through most everything you need to get it safe, legal, and ready for the job site. In Part 1 we cover the initial purchase and the big-ticket inspections and parts you’ll need right away.

You’re walking the equipment auction and you score a 10-year-old 19' electric scissor lift (Genie GS-1930 or JLG 1930ES) showing only 450–850 hours on the meter. Important note: Hour meters on electric scissor lifts are notoriously low and do not accurately reflect real usage. The meter only runs when the drive motor is engaged (i.e., when the machine is actually driving). It does not count time spent elevated, raising/lowering the platform, or performing stationary work at height. So a reading in the 450–850 hour range on a 10-year-old machine is actually very common and often means heavier real-world use than the number suggests.

On any 10-year-old electric scissor lift like the GS-1930 / 1930ES, the biggest items that almost always need immediate attention are the batteries, hydraulic fluid and filters, and decals. The JLG GS-30 series and Genie preventive maintenance tables call for quarterly and annual checks on electrical systems, hydraulics, platform, and chassis.

Cost Assumptions (OEM Parts from gciron.com)

• Labor: $75/hr fully loaded
  → Quarterly inspection ≈ 2 hours = $150
  → Annual inspection ≈ 3 hours = $225
• Quarterly materials (grease/lube + minor top-offs): $80
• Annual materials (filters, hydraulic fluid top-off, grease): $200
• Full hydraulic fluid change (2–5 gal typical for these models): $180 every 2 years
• One-time 10-year catch-up items (OEM from gciron.com):
  • Full Battery Set (4× 6V deep-cycle): $900
  • Labor to install batteries: $500
  • Decal Service Kit: $300

All recommended OEM parts are available for purchase directly at www.gciron.com.

Immediate Post-Purchase Costs + First-Year Ownership

Bottom Line for Contractors

Plan on investing roughly $2,300–$2,500 in the first 30 days to make your auction GS-1930 / 1930ES safe, legal, and ready for the jobsite. After that initial catch-up, expect $1,600–$2,000 per year for routine inspections and consumables.

While it adds to the upfront cost, owning a well-maintained 19' electric scissor lift is almost always cheaper than renting one for every electrical, drywall, or low-level interior job.

Next week in Part 2: We’ll cover the most important maintenance items on an electric scissor lift — battery care, charging, water levels, and replacement.

Part 1 of 4: Buying a 10-Year-Old 660SJ Boom Lift at Auction – What a Roofer Should Budget For

If you are a roofer (or any contractor) who just bought a 10-year-old 660SJ at auction, this four-part series will walk you through everything you need to get it safe, legal, and ready for the jobsite. In Part 1 we cover the initial purchase and the big-ticket inspections and parts you’ll need right away.

You’re walking the equipment auction and you score a 10-year-old 60-foot boom lift (660SJ model) with 4,121 hours on the clock. That’s right around the average for machines this age, making it a realistic and common purchase. But before your crew is 60 feet in the air hanging off a roof, this Aerial Work Platform (AWP) still needs to be brought up to current safety standards.

On any 10-year-old unit like the 660SJ, two items almost always need prompt replacement: the boom extend/retract cables (wire rope) and the wear pads. Most manufacturers recommend replacing the cables at 12 years or 7,000 hours. At 10 years old, it’s best practice to renew both — even at average hours — to keep the boom operating smoothly and safely.

The standard AWP inspection checklists cover decals, structural welds, controls, brakes, and hydraulic cylinders. You’ll also run a full cylinder drift test as part of the annual inspection.

Cost Assumptions (OEM Parts from gciron.com)

• Labor: $75/hr fully loaded
  → Quarterly inspection ≈ 4 hours = $300
  → Annual inspection ≈ 12 hours = $900
• Quarterly materials (grease/lube + top-offs): $130
• Annual materials (filters, oil, grease, fluid top-off): $450
• Full hydraulic fluid change (approx. 34 gal system): $950 every 2 years
• One-time 10-year catch-up items (OEM from gciron.com):
  • Wear Pad Kit (Part #1001238897): $1,450 → Buy the OEM Wear Pad Kit for 660SJ here
  • Wire Rope / Cable Kit (Part #2910172): $1,827 → Buy the OEM Wire Rope Service Kit for 660SJ here
  • Labor to install both kits: ≈ 18 hours = $1,350

Immediate Post-Purchase Costs + First-Year Ownership

Bottom Line for Roofers

Plan on investing roughly $6,900–$7,200 in the first 30 days to make your auction 660SJ safe, legal, and ready for the jobsite. After that initial catch-up, expect $3,500–$4,500 per year for routine inspections and consumables.

While it adds to the upfront cost, a properly maintained AWP boom lift on your own truck is almost always cheaper than renting one for every roofing job.

Next week in Part 2: We’ll cover the cylinder drift test in detail — why it matters on a 10-year-old machine and exactly how to check it.

Part 1 of 4: Buying a 10-Year-Old SkyTrak 10054 Telehandler at Auction – What a Contractor Should Budget For

If you’re a general contractor, roofer, or steel contractor who just bought a 10-year-old SkyTrak 10054 telehandler at auction, this four part series will walk you through everything you need to get it safe, legal, and ready for the jobsite. In Part 1 we cover the initial purchase and the big ticket inspections and parts you’ll need right away.

You’re walking the equipment auction and you score a 10-year-old SkyTrak 10054 telehandler with typical real world usage. Important note on hour meters: The SkyTrak 10054 hour meter records engine operating time. Typical yearly usage for a telehandler is 600-800 hours.

On any 10-year-old SkyTrak 10054, the biggest items that almost always need immediate attention are the battery, hydraulic fluid and filters, boom wear pads / chain tension, decals, and the load chart booklet. The factory service schedule calls for frequent checks on hydraulics, boom, chassis, and engine systems. Also note that manuals distinguish between ULS (Ultra Low Sulfur – S ≤ 15 mg/kg) diesel engines built for the US market and LS (Low Sulfur – S ≤ 500 mg/kg) engines built for export markets with lower-quality fuel (common in many Caribbean islands and other regions).

Cost Assumptions (OEM Parts from gciron.com)

• Labor: $75/hr fully loaded → Quarterly inspection ≈ 4 hours = $300 / Annual inspection ≈ 10 hours = $750
• Quarterly / 250-Hour Service Kit (Part #1001150523) → Buy 250-Hour Kit here → $350
• Annual / 1,000-Hour Service Kit (Part #1001150526) → Buy 1,000-Hour Kit here → $1,200 (covers full fluid change for Transmission, Transfer Case, Axle Differentials, Wheel Ends, and Hydraulic system – all use the same 10W-30 hydraulic fluid such as MobilFluid 424)
• One-time 10-year catch-up items:
  • Battery (Part #0400075 – single 12V battery) → Buy Battery here → $220
  • Labor to install battery: $150
  • Complete Decal Kit (Part #1001194087 – frame, cab, and boom) → Buy Decal Kit here → $450
  • Boom Wear Pad Kit (Part #2910996 – specific to 10054) → Buy Boom Wear Pad Kit here + Chain Inspection & Adjustment: $800
  • Load Chart Booklet (Part #1001199518 – ANSI) → Buy Load Chart Booklet here → $85

All recommended OEM parts and fluids are available for purchase directly at www.gciron.com.

Immediate Post-Purchase Costs + First-Year Ownership

Bottom Line for Contractors

Plan on investing roughly $4,000–$4,300 in the first 30 days to make your auction SkyTrak 10054 safe, legal, and ready for the jobsite. After that initial catch-up, expect $3,000–$4,500 per year for routine inspections and consumables (higher than a scissor lift because of the larger hydraulic system and boom).

While it adds to the upfront cost, owning a well-maintained SkyTrak 10054 telehandler is almost always cheaper than renting one for every framing, roofing, steel erection, or material-handling job.

Next week in Part 2: We’ll cover boom maintenance, hydraulic system service, and the critical wear pads / chain tension checks that keep the 54 ft boom safe and smooth.

Part 2 of 4: Battery Care and Maintenance on Your 10-Year-Old 19' Electric Scissor Lift – The #1 Thing You Must Get Right

Last week in Part 1 we covered what it really costs to buy and initially set up a 10-year-old Genie GS-1930 or JLG 1930ES 19' electric scissor lift. If you’re an electrician (or any contractor) who just bought one of these machines, the single most important thing you need to focus on right now is battery care.

Unlike a boom lift, an electric scissor lift has no engine — everything runs on batteries. If the batteries are weak, sulfated, or poorly maintained, the machine will lose performance, shut down unexpectedly, or leave you stranded 19 feet in the air. On 10-year-old units this is the #1 cause of downtime.

Why Batteries Matter So Much on These Machines

The Genie GS-1930 and JLG 1930ES use four 6-volt deep-cycle batteries wired in series (24V system). OEM batteries and the original charger are designed to work together — using mismatched or aftermarket batteries can reduce performance and shorten lifespan.

For the JLG 1930ES the correct OEM battery is Part #0400215.
For the Genie GS-1930 the correct OEM battery is Part #76494GT.

→ Buy JLG OEM 6V Battery here
→ Buy Genie OEM 6V Battery here

JLG Setup

Genie Setup

Daily / Weekly Battery Checks (Do These Yourself)

⚠️ Safety Warning: Batteries produce explosive gases and can explode and ignite. Always wear safety goggles and work in a well-ventilated area when inspecting or replacing batteries.

1. Visual Inspection – Look for corrosion, loose cables, cracked cases, or leaks.
2. Clean Terminals (Field Hack) – Pour regular Coke over the terminals to quickly remove green oxidation, then rinse and dry.
3. Water Levels – Check every 50–100 hours or weekly. Add distilled water only after charging. Never overfill.
4. Charge the Batteries Fully – Always plug in after use and let them reach 100% before storing.

Quarterly / Annual Battery Maintenance

• Test specific gravity with a hydrometer (should read 1.265–1.280 on a full charge). A basic hydrometer can be purchased at your local auto parts store or on Amazon for $8–12.
• Equalize charge every 3–6 months (most modern chargers have an equalize mode).
• Check cable connections and battery hold-downs for tightness.

When to Replace the Battery Set

On a 10-year-old machine you will almost always need a new set of batteries. Realistic current cost (from gciron.com):

• Full 4-battery set: $900
• Labor to install: $500

Bottom Line for Contractors

Batteries are the heart of your 19' electric scissor lift. Spend the time and money to get them right in the first 30 days (already built into the $2,300–$2,500 budget from Part 1). New OEM properly maintained batteries will last 5 years. A well-maintained battery set will give you reliable daily performance and save you from surprise downtime on the jobsite.

Next week in Part 3: We’ll cover safety decals, placards, and overall machine appearance — the small but critical items that keep you compliant with OSHA and your insurance company.

Part 2 of 4: Boom Maintenance & Hydraulic Service on Your 10-Year-Old SkyTrak 10054 Telehandler

Last week in Part 1 we covered what you should budget for right after buying a 10-year-old SkyTrak 10054 at auction. Now that the machine is mechanically sound on the basics, it’s time to focus on the boom and hydraulic system — the heart of the telehandler.

On a 10-year-old 10054, these are the areas that see the most wear and are responsible for the majority of downtime if neglected.

Boom Wear Pads (Critical Item)

The SkyTrak 10054 uses flat rectangular wear pads with metal inserts. There are 47 wear pads installed on the boom sections.

• Inspection interval: Every 50 hours
• Replacement: Replace as a set if worn or damaged. The pads can be reused if the angle indicators on the ends are still visible and wear is even.

Recommended OEM Part:
Boom Wear Pad Kit – Part #2910996 (specific for 10054)
→ Buy Boom Wear Pad Kit here

Proper Installation & Shimming
Maintain a total boom section clearance of 0.070 – 0.130 in (1.78 – 3.30 mm) in both the horizontal and vertical directions.

Use shims and spacers as needed. A spacer must be used before any shim. Torque wear pad bolts (3/8-16) to 31 lb-ft (42 Nm) after shimming is complete. Use Loctite® 242™ on all mounting bolts.

Pro Tip: Use shims to maintain the proper clearance between boom sections for as long as possible. Only replace the wear pads when you can no longer achieve the correct clearance with shimming.

Lubrication: Clean and lightly grease all wear pad pathways and the hose carrier guide bar pathways with Mystik Tetrimoly NLGI Grade 2 grease after installation.

Boom Chain Inspection & Maintenance

The boom extend and retract chains are critical safety components. A chain failure can result in loss of load control or machine instability.

Inspection Intervals:

• Extend chains: Every 250 hours
• Retract chains: Every 1,000 hours (more frequently in harsh, abrasive, or corrosive environments)

How to Inspect:

• Park on a firm, level surface, raise the boom to horizontal, place the transmission in Neutral, and engage the park brake.
• Fully extend the boom to inspect the extend chains.
• Retract chains are only partially visible — inspect them every 1,000 hours or when in doubt.

What to Check:

• Distorted, battered, or cracked link plates
• Turning or protruding pins
• Cracked plates (fatigue, stress corrosion, or corrosion fatigue)
• Edge wear on link plates (maximum 5% reduction in height)
• Elongation: Measure in 12-pin increments in the section that travels over the sheaves. If elongation exceeds 3%, replace the chain.

Important Rule:
If any chain is damaged, stretched, or worn beyond limits, replace all the chains and clevises at the same time. Do not attempt to repair a chain.

Recommended Lubricant:
Schaffer 200S Silver Streak boom chain lubricant. Lubricate every 1,000 hours (or more often in dirty conditions).

Boom Hose Carrier Assembly

This is one of the most common replacement items on older SkyTrak 10054 telehandlers.

When you see damage like the photo below, it’s time to replace the entire assembly.

Recommended OEM Part:
Boom Hose Carrier Assembly – Part #7112452 (includes all 4 hoses + carrier)
→ Buy Boom Hose Carrier Assembly here

Hydraulic System Service

The 10054 uses the same 10W-30 hydraulic fluid (such as MobilFluid 424) in the transmission, transfer case, axles, wheel ends, and the main hydraulic system.

• Change hydraulic fluid & filters: Every 1,000 hours (or sooner if contaminated)
• Use the 1,000-Hour Filter Kit – Part #1001150526
  → Buy 1,000-Hour Filter Kit here

This is a very common service to perform early on a 10-year-old machine.

Lubrication Schedule (10054 Specific)

• Every 50 hours: Lubricate all boom and chassis grease points
• Every 250 hours: Additional boom and cylinder lubrication points
• Every 1,000 hours: Full lubrication service, including the boom chain

Bottom Line for Contractors

The boom on a 10-year-old SkyTrak 10054 is where you’ll spend the most time and money if it’s not maintained properly. Focusing on proper wear pad shimming, regular chain inspection (with the 3% elongation rule), and replacing the boom hose carrier assembly when needed will keep the machine working reliably and reduce expensive (and dangerous) downtime.

Next week in Part 3: We’ll cover safety decals, appearance, structural inspection points, and keeping the machine compliant and insurable.

Part 2 of 4: Cylinder Drift on Your 10-Year-Old 660SJ Boom Lift – Why It Matters and How to Test It

Last week in Part 1 we covered buying that 10-year-old 660SJ at auction and the major upfront costs. If you’re a roofer (or any contractor) who just bought one of these machines, one of the very first things any good mechanic will check is cylinder drift. On a 10-year-old unit this test is critical — even with low hours, worn seals or valves can create a real safety risk when your crew is 60 feet in the air.

Cylinder drift is when the boom rod slowly moves (extends or retracts) even though the control valve is in neutral. It’s one of the most common issues on older AWPs, and catching it early keeps the machine safe and prevents bigger repair bills later.

What Causes Cylinder Drift?

• Load-holding valves leaking or malfunctioning – These valves are supposed to lock the oil in place. Normal minor leakage can occur, but worn valves let oil slip past.
• Damaged or worn piston seals – Seals inside the cylinders wear out over time, allowing oil to leak internally from one side of the piston to the other (or externally).
• Thermal expansion/contraction of the hydraulic oil – This is completely normal. Oil expands when hot and contracts as it cools toward ambient temperature. It’s not leakage — just physics.

How to Run the Cylinder Leakage Test

The test must be done with the hydraulic oil at stabilized ambient (shop) temperature. Here’s the simple procedure:

1. Position the boom in an open area with no obstructions.
2. Apply the rated load and position the cylinder so the rod is easy to watch.
3. Place a calibrated dial indicator against the cylinder rod.
4. Record total movement over exactly 10 minutes.

If the drift stays within the limits shown in the table below, the leakage is acceptable. Anything over the limit means it’s time to inspect (and likely replace) the piston seals and/or load-holding valves.

Table: Maximum Acceptable Cylinder Drift in 10 Minutes

Note: These limits are based on a normal leakage rate of about 6 drops per minute.

Thermal Drift vs. Real Leakage

All hydraulic oil expands and contracts with temperature changes. On a 10-year-old 660SJ that’s been sitting, you may see the boom creep slightly as the oil moves toward outside air temperature. This is normal and more noticeable on longer booms.

What If the Drift Test Fails?

If the numbers are over the limit, you’ll most likely need new piston seals. On the 660SJ there are two typical cylinders to check:

• Main Boom Lift Cylinder Seal Kit (Part #2901285) → Buy the OEM Lift Cylinder Seal Kit here
• Platform Level (Slave) Cylinder Seal Kit (Part #2901303) → Buy the OEM Platform Level Cylinder Seal Kit here

Both are genuine OEM parts available directly at www.gciron.com. Replacing one or both kits plus labor usually adds $1,500–$3,000 depending on which cylinder is leaking.

Bottom Line for Roofers

Have the cylinder drift test done as part of the first annual inspection (already included in the $6,900–$7,200 first-30-days budget from Part 1). If it passes, you’re good to go. If it fails, the seal kits above are the most common fix and are straightforward to order from gciron.com.

Next week in Part 3: We’ll cover safety decals, paint, and appearance — the small but important details that keep you compliant with OSHA and your insurance company.

Part 3 of 4: Safety Decals & Appearance on Your 10-Year-Old SkyTrak 10054 Telehandler

Last week in Part 2 we covered boom wear pads, chain inspection, and hydraulic service. Now that the machine is mechanically sound, it’s time to focus on safety decals, appearance, and compliance — the items that keep the machine legal, insurable, and safe to operate.

On a 10-year-old SkyTrak 10054, decals fade, peel, or go missing over time. Missing or illegible decals can cause issues during inspections, and an outdated or missing load chart can create serious liability.

Why Decals and Appearance Matter

• Operator Safety: Important warnings, capacity ratings, and operational instructions are displayed on the decals.
• Resale Value: A machine with faded or missing decals looks neglected.
• Load Chart: This is one of the most important items on any telehandler.

Decal Inspection & Replacement

Walk around the machine and check all decal locations, especially:

• Frame and chassis decals
• Cab and operator station decals (dash area)
• Boom decals
• Lubrication chart decal

Complete Decal Kits by Serial Number:

• Machines with serial numbers 0160045250 – 0160069719:
  Decal Kit – Part #1001194087
  → Buy Decal Kit #1001194087 here
• Machines with serial numbers 0160069720 and newer:
  Decal Kit – Part #1001211928
  → Buy Decal Kit #1001211928 here

These kits include decals for the boom and frame. Note: These kits do not include the load chart.

Individual Popular Decals:

Cab / Dash Decals (install at the dash):

• Left Hand: Part #1001158319
• Right Hand: Part #1001158272

Lubrication Chart Decal:

• Part #1001191996

Tip: On older 10054s, the cab/dash decals and the lubrication chart are two of the most commonly faded or missing items. Replacing them makes a big visual difference and helps with compliance.

Load Chart Booklet (Very Important)

The load chart shows the machine’s lifting capacity at different boom positions and must match the machine’s current configuration.

• It should be kept in the cab and be legible.
• Many job sites and insurance companies will reject a machine if the load chart is missing or incorrect.

Recommended Part:
Load Chart Booklet – Part #1001199518 (ANSI)
→ Buy Load Chart Booklet here

Mirrors

Cracked or missing mirrors are a common issue on older telehandlers and can fail a safety inspection.

Recommended Parts:

• Right Hand Mirror: Part #1001191635
• Left Hand Mirror: Part #1001148177

Controller Protection – Rubber Boot

The boom lift and lower controller sees heavy use. Over time the rubber boot tears, allowing dirt and moisture into the controls.

Recommended Part:
Rubber Boot – Part #8160419
→ Buy Rubber Boot here

Structural & Appearance Inspection

While checking decals, also do a quick visual check of:

• Frame and chassis for cracks (especially around boom pivot and outrigger mounts)
• Boom for dents or damage
• Outriggers / stabilizers
• Tires and wheels
• Overall paint and corrosion

Bottom Line for Contractors

Safety decals, the load chart, mirrors, and controller protection are relatively low-cost items that help keep the machine compliant and looking professional. On a 10-year-old SkyTrak 10054, these are easy wins that improve safety, reduce liability, and make the machine more presentable on job sites.

Next week in Part 4 (Final Article): We’ll cover error codes, common faults, and diagnostic tools for the SkyTrak 10054.

Part 3 of 4: Safety Decals, Paint, and Appearance on Your 10-Year-Old 19' Electric Scissor Lift – Small Details That Keep You Safe

Last week in Part 2 we covered battery care — the single most critical maintenance item on your electric scissor lift. If you’re an electrician (or any contractor) who just bought a 10-year-old Genie GS-1930 or JLG 1930ES, this week we’re focusing on the “General” section of the inspection checklist: safety decals, placards, paint, and overall appearance.

On a 10-year-old machine these items are easy to overlook, but they’re some of the first things an OSHA inspector or insurance auditor will check. Missing or faded decals can get you shut down on a jobsite, and poor appearance can signal that the machine hasn’t been well cared for.

Why Decals and Appearance Matter on an Older Scissor Lift

• Safety — Decals show capacity limits, emergency procedures, and hazard warnings.
• Compliance — Most jobsites and insurers require all placards to be installed, secure, and fully legible.
• Resale value — A clean, fully stickered machine sells faster and for more money.
• Quick visual clue — If the paint is peeling or decals are sun-bleached, it’s often a red flag for other maintenance issues.

Key Items to Check and Fix

• All decals/placards installed, secure, and legible
• No unauthorized modifications
• General structural condition and welds (visual check)
• All fasteners, pins, shields, and covers in place
• Paint and appearance clean and free of heavy rust or debris
• Inspection date clearly marked

OEM Decal Kits from gciron.com (Recommended)

You can purchase decals individually or as complete decal kits. Ordering a full kit is usually faster and ensures you don’t miss anything.

• Genie GS-1930 Complete Decal Kit (Part #232055GT) → Buy Genie Decal Kit here
• JLG 1930ES Complete Decal Kit (Part #1001149795) → Buy JLG Decal Kit here

Pro tip: Watch our quick YouTube video that walks through exactly how to remove the old decals and install the new ones → Visit our YouTube channel @GCIRON

Paint and Touch-Up – Keep It Looking Professional

While you’re doing the decals, take time to touch up any chips, scratches, or faded areas. Fresh paint protects against rust and keeps the machine looking well-maintained.

GCIron carries genuine paint for both brands:

• Shop Genie Blue & Gray OEM Paint here
• Shop JLG Orange & Cream OEM Paint here

Bottom Line for Contractors

Decals and paint are relatively low-cost fixes (usually $250–$450 in parts plus a couple hours of labor) but they’re non-negotiable for staying compliant. Knock them out during your first annual inspection (already budgeted in Part 1). A clean, fully labeled 19' scissor lift tells your crew, your insurance company, and future buyers that this machine is taken seriously.

Next week in Part 4 (final article): We’ll cover common error codes and user codes on the GS-1930 / 1930ES — what they mean and the quick troubleshooting steps before calling a tech.

Part 3 of 4: Safety Decals and Appearance on Your 10-Year-Old 660SJ Boom Lift

Last week in Part 2 we covered the cylinder drift test and the two main seal kits you might need if it fails. If you’re a roofer (or any contractor) who just bought one of these machines, this week we’re focusing on the “General” section of the AWP inspection checklist — safety decals, placards, paint, and overall appearance. On a 10-year-old 660SJ these items are quick to check and fix, but they’re some of the first things an OSHA inspector or insurance auditor will look at.

Why Decals and Appearance Matter on an Older AWP

• Safety — Decals show load limits, emergency stop procedures, and hazard warnings.
• Compliance — Jobsites and insurers require all placards to be installed, secure, and fully legible.
• Resale value — A clean, fully stickered machine sells faster and for more money.
• Quick visual clue — If the paint is peeling or decals are sun-bleached, it’s often a red flag for other maintenance issues.

Key Items to Check and Fix

• All decals/placards installed, secure, and legible
• No unauthorized modifications
• General structural condition and welds (visual check)
• All fasteners, pins, shields, and covers secure
• Paint and appearance clean and free of heavy rust or debris
• Inspection date stamped on the frame

OEM Decal Kits from gciron.com (Recommended)

• Full Machine Decal Service Kit (Part #1001193634) – Covers boom and chassis → Buy the OEM Machine Decal Kit for 660SJ here
• Platform Decal Kit (Part #1001238895) – All platform controls and capacity labels → Buy the OEM Platform Decal Kit for 660SJ here
• Platform Console Decal Kit (Part #1001119562) – All platform controls and capacity labels → Buy the OEM Platform Console Decal Kit for 660SJ here

Pro tip: Watch our quick YouTube video that walks through exactly how to remove the old decals and install the new ones.

Paint and Touch-Up – Keep It Looking Professional

While you’re doing the decals, take time to touch up any chips, scratches, or faded areas. Fresh paint protects against rust and keeps the machine looking well-maintained.

GCIron carries genuine JLG paint in aerosol cans and gallon cans.
→ Shop all JLG OEM Paint (aerosol & gallon) here

Bottom Line for Roofers

Decals and paint are relatively low-cost fixes (usually $800–$1,800 in parts plus a few hours of labor) but they’re non-negotiable for staying compliant. Knock them out during your first annual inspection (already budgeted in Part 1). A clean, fully labeled 660SJ tells your crew, your insurance company, and future buyers that this machine is taken seriously.

Next week in Part 4 (final article): We’ll cover common error codes and user codes on the 660SJ — what they mean and the quick troubleshooting steps before calling a tech.

Part 4 of 4: Diagnosing Issues & Common Faults on Your 10-Year-Old SkyTrak 10054 Telehandler

Over the past three parts, we’ve covered what to budget for after buying a 10-year-old SkyTrak 10054, how to properly maintain the boom and hydraulics, and how to keep the machine compliant with proper decals and load charts.

In this final article, we’ll focus on diagnosing problems and the most common issues seen on these machines.

Where to Find Error Codes and Warnings

On the SkyTrak 10054, most warnings and fault codes are displayed on the instrument cluster (gauge panel) in the cab.

The display area in the center of the cluster is where error codes and system warnings will appear.

Most Common Issues on 10-Year-Old SkyTrak 10054s

Here are the three issues we see most frequently:

1. Code 418 – Water in Fuel Warning

This warning indicates water has been detected in the fuel system. It is often caused by contaminated fuel, a failing fuel/water separator, or moisture buildup in the tank over time.

Fix: Drain the water separator and replace the fuel filter if needed. Persistent issues may require further fuel system inspection.

2. Code 3737 – Engine Starter Mode Overcrank

This code means the starter has been engaged too long without the engine starting. Common causes include weak batteries, starter or solenoid issues, or fuel delivery problems.

Fix: Start by checking battery voltage and connections. Recurring issues usually require further diagnosis of the starting or fuel system.

3. Stabil-Trak System Faults

The Stabil-Trak system is a safety feature designed to help stabilize the machine during operation, especially when the boom is raised. It works by limiting certain functions based on machine conditions.

The system operates in three modes:

• Free Pivot Mode: Active when the boom is below 40 degrees. The machine has normal steering and pivoting capability. (Stabil-Trak is off)
• Slow Pivot Mode: Active when the boom is above 40 degrees and the machine is in gear. Rear axle is unlocked, but will respond slowly to changes in terrain. (Stabil-Trak is off)
• Locked Mode: Active when the boom is above 40 degrees, the parking brake is on, the transmission is in Neutral, and the service brake is depressed. In this mode, pivoting is locked for maximum stability while lifting. (Stabi-Trak is on)

The system relies on input from several components, including boom proximity switches, parking brake switch, service brake switch, transmission selector, and related solenoid valves.

When the system detects a fault, it can limit machine functions or display a warning. Common causes include faulty boom proximity switches, brake switch issues, transmission selector problems, or wiring/connection faults.

How to Approach Troubleshooting

When a warning or code appears:

1. Note the exact code or message on the gauge cluster.
2. Check for obvious issues first (fluid levels, visible damage, loose connections).
3. Review recent maintenance, many issues appear after fluid changes or repairs.

Pro Tip: Don’t ignore recurring warnings. Even if the machine still operates, codes like 418 can lead to bigger problems if left unaddressed. If unaddressed codes will advance to codes 428, 429, and 1852 - most severe water in the fuel.

Bottom Line for Contractors

A 10-year-old SkyTrak 10054 can still be a reliable machine, but it requires attentive maintenance and prompt attention when issues arise. The three problems we see most often — Water in Fuel (418), Starter Overcrank (3737), and Stabil-Trak faults — are usually manageable when caught early.

Staying on top of regular service and addressing small problems before they become major repairs will help you get the most life and value out of the machine.

Wrapping Up the Series

Over the past four articles, we’ve covered the full process of turning a used SkyTrak 10054 into a reliable workhorse:

• Part 1: What to budget after purchase
• Part 2: Boom and hydraulic maintenance
• Part 3: Safety decals, appearance, and compliance
• Part 4: Diagnosing issues and common faults

If you follow these steps and stay proactive with maintenance and diagnostics, you’ll have a much better chance of getting years of productive service while keeping repair costs reasonable.

Thanks for following the series.

Part 4 of 4: Error Codes and User Codes on Your 10-Year-Old 19' Electric Scissor Lift – Quick Fixes Before Calling a Tech

Last week in Part 3 we covered safety decals, paint, and appearance — the small but critical details that keep you compliant. If you’re an electrician (or any contractor) who just bought a 10-year-old Genie GS-1930 or JLG 1930ES 19' electric scissor lift, now that the machine is mechanically sound, freshly stickered, and looking sharp, let’s talk about the electronic side: error codes and user codes that pop up on the platform or ground controls.

On a 10-year-old electric scissor lift these codes are very common. Most are simple to clear yourself and don’t require a full service call. Catching them early keeps the machine productive on the jobsite instead of sitting idle.

Why Error Codes Show Up on Older Machines

After 10 years of jobsite use, wiring connections loosen, sensors get dirty or misaligned, and control boards occasionally need a reset. The control system is designed to display a numbered code (or “FAULT” message) to help you diagnose the issue fast.

Must-Have Tools to Read and Clear Codes

• JLG 1930ES: JLG Hand-Held Analyzer (Part #1001249695) → Buy JLG Analyzer Kit here
• Genie GS-1930: Genie TechPro Link Analyzer (Part #1276686GT) or read many codes directly on the GCON (Ground Control) → Buy Genie Analyzer here

Pro tip: Watch our two quick YouTube videos showing exactly how to use the JLG Analyzer:
→ Video 1 – JLG Analyzer Basics
→ Video 2 – Reading & Clearing Codes

Most Common Codes and Quick Troubleshooting Steps

1. CO51 – Tilt Sensor Not Calibrated (Genie GS-1930 – very common)
   Typically occurs after replacing the tilt sensor.
   Fix: Replace with the correct tilt sensor (Part #823368GT) → Buy Genie Tilt Sensor here and perform the tilt sensor calibration procedure using the analyzer or GCON.
2. CO53 – GCON Software Does Not Match PCON Software (Genie GS-1930 – very common on large job sites)
   Often happens when multiple units are on the same site and control boxes are swapped nightly.
   Fix: Update the software on the Ground Control (GCON) or Platform Control (PCON) module so both match. This usually requires the Genie TechPro Link Analyzer.
3. 311 – Open Circuit Line Contactor (JLG 1930ES – very common)
   Fix: Test the Line Contactor Relay (Part #3740150). It should read approximately 50 ohms when tested. Replace the relay if it is open or out of spec.
   → Buy JLG Line Contactor Relay here
4. 2512 – Elevation Angle Sensor Not Detecting Change (JLG 1930ES – very common)
   Occurs when the angle sensor is bad or newly installed and not calibrated.
   Fix: Replace the Rotary Angle Sensor (Part #1001121241) and perform calibration.
   → Buy JLG Rotary Angle Sensor here

Pro tip: Many codes can be cleared by simply turning the key off for 30 seconds, then back on. If the code returns immediately, note the exact number and refer to the machine’s service manual.

OEM Resources from gciron.com

• JLG Hand-Held Analyzer Kit (Part #1001249695) → Buy here
• Genie TechPro Link Analyzer Kit (Part #1276686GT) → Buy here
• Genie Tilt Sensor (Part #823368GT) → Buy here
• JLG Line Contactor Relay (Part #3740150) → Buy here
• JLG Rotary Angle Sensor (Part #1001121241) → Buy here

All genuine OEM electrical parts, sensors, and wiring harnesses are stocked and ready to ship from www.gciron.com.

Bottom Line for Contractors

Error codes on a 10-year-old 19' electric scissor lift are usually not a big deal — most are fixed in minutes with basic checks. Address them during your first annual inspection (already built into the budget from Part 1) and you’ll keep the machine running smoothly on every job.

Wrapping Up the Series

You now have the complete roadmap to turn your auction 19' electric scissor lift into a safe, reliable, and cost effective tool for your crew:

Buy It → Make it Mechanically Sound → Make it Legally Safe → Make it User Friendly

• Part 1 – Purchase and real budget
• Part 2 – Battery care (the #1 item)
• Part 3 – Safety decals, paint, and appearance
• Part 4 – Error codes and quick fixes

Follow these steps and you’ll spend far less than renting a scissor lift for every electrical, drywall, or low level interior job.

Thanks for following along; now go put that scissor lift to work. Safe jobs!

Part 4 of 4: Error Codes and User Codes on Your 10-Year-Old 660SJ Boom Lift – Quick Fixes Before Calling a Tech

Last week in Part 3 we covered safety decals, paint, and appearance — the small details that keep you compliant. If you’re a roofer (or any contractor) who just bought one of these machines, now that your auction 660SJ is mechanically sound, freshly stickered, and looking sharp, let’s talk about the electronic side: error codes and user codes that pop up on the platform or ground controls.

On a 10-year-old AWP like the 660SJ, these codes are common. Most are simple to clear yourself and don’t require a full service call. Catching them early keeps the machine productive on the roof instead of sitting idle.

The must-have tool to read and clear error codes is the JLG Hand-Held Analyzer & Cable Kit.

Why Error Codes Show Up on Older Machines

After 10 years of jobsite use, wiring connections can loosen, sensors get dirty or misaligned, and control boards occasionally need a reset. The control system is designed to display a numbered code (or “FAULT” message) to help you diagnose the issue fast.

Most Common Codes and Quick Troubleshooting Steps

1. Key Switch Faulty — Code 212
   Could be a damaged boom harness, faulty diode, bad connection, or faulty key switch.
   Fix: Inspect the boom harness for damage. Check/replace the diode at the ground module. Replace the key switch if needed.
2. Foot Switch Faulty — Code 213
   Could be a blown fuse, damaged foot switch harness, damaged boom harness, or faulty foot switch.
   Fix: Check for a blown fuse near the ground module. Inspect both foot switch and boom harnesses for damage. Replace the foot switch if necessary.
3. Chassis Tilt Sensor Faults — Code 815
   Could be incorrect tilt calibration, defective ground module, or faulty tilt sensor.
   Fix: Recalibrate the tilt sensor. Check the ground module. Replace the external tilt sensor if needed.
4. Engine Related Codes (Low Oil Pressure) — Code 431
   Could be contamination in the engine oil, low oil level, faulty oil pressure sensor, or faulty wiring.
   Fix: Oil pressure should read 40–60 PSI at operating temperature. Confirm fluid levels are correct, check/replace the oil filter, inspect wiring for shorts, and replace the oil pressure sensor if required.

Pro tip: Many codes can be cleared by simply turning the key off for 30 seconds, then back on. If the code returns immediately, note the exact number and refer to the machine’s service manual.

OEM Resources from gciron.com

• Full JLG Service Manual (covers complete fault code tables and troubleshooting for the 660SJ) → Shop JLG 660SJ Service Manuals & Diagnostic Guides here
• JLG Hand-Held Analyzer & Cable Kit → Buy the JLG Analyzer Kit here

All genuine OEM electrical parts, sensors, and wiring harnesses are also stocked and ready to ship from www.gciron.com.

Bottom Line for Roofers

Error codes on a 10-year-old 660SJ are usually not a big deal — most are fixed in minutes with basic checks. Address them during your first annual inspection (already built into the budget from Part 1) and you’ll keep the machine running smoothly on every roofing job.

Wrapping Up the Series

You now have the complete roadmap to turn your auction 660SJ into a safe, reliable, and cost-effective tool for your roofing crew. Follow these steps and you’ll spend far less than renting a boom lift for every job.

Thanks for following along — now go put that boom lift to work. Safe roofing!