Somewhere in the 228 pages of this JLG CM2033 parts manual PDF (OEM publication 3120573) is the part number for whatever just failed on your sizzor lift, and the same book covers four CM-series models under one illustrated parts list. Exploded views break the frame, ground components, sizzor arms, and platform down to single pins and wear pads, each callout keyed to a factory number. Hydraulic breakdowns map the tank, valves, and cylinder assemblies, while the electrical diagrams and components chart ties every switch and connector to something you can actually order. Verify what you're replacing against real factory data: steer wheel toe-in runs 1/4 inch, and the hydraulic system takes 10W-20 or 10W-30 oil across normal working temperatures. Nobody on site knows which bushing that is. Bookmarked and text-searchable, this PDF puts the right part number on your first order, not your third.
What's Inside This JLG CM2033, CM2046, CM2546, CM2558 Parts Manual
| System | Pages | Key Topics |
|---|---|---|
| Introduction - Operation Safety Precautions | 3 | Operator Training, Load Limits, Electric Power Lines |
| Introduction - Maintenance Safety Precautions | 4 | General Safety, Hydraulic System Safety, Maintenance Procedures |
| Safety Precautions | 11-20 | General, Driving/Towing/Carrying, Electrocution Hazard, Pre-Operational, Driving, Operation, Maintenance |
| Preparation and Inspection | 21-26 | General, Preparation for Use, Delivery and Periodic Inspection, Daily Walk-Around Inspection, Daily Functional Check, Torque Requirements, Battery Charging |
| User Responsibilities and Machine Control | 27-36 | Personnel Training, Operating Characteristics, Ground Control Station, Platform Control Station, Control Panel Symbols |
| Machine Operation | 37-40 | General, Motor Operation, Raising and Lowering, Platform Extension, Steering, Traveling, Parking and Stowing |
| Optional Equipment | 41 | Pq Controller, Horn, Travel Alarm |
| Emergency Procedures | 43-44 | Emergency Towing and Free-Wheeling Valve, Chocking the Wheels, Emergency Controls and Their Locations |
| Specifications | 45-50 | Capacities, Component Data, Performance Data, Torque Requirements, Lubrication, Cylinder Specifications, Pressure Settings, Serial Number Locations |
| Procedures | 51-67 | General, Servicing and Maintenance Guidelines, Lubrication Information, Cylinders - Theory of Operation, Valves - Theory of Operation, Component Functional Description, Wear Pads |
| Troubleshooting | 69-79 | Information, Hydraulic Circuit Checks, Elevation System Troubleshooting, Chassis Troubleshooting, Electrical System Troubleshooting |
| Recommended Spare Parts List | 81-82 | Standard Parts, Variable Parts |
| Frame | 83-104 | Steering, Drive Installation, Rear Axle, Brake Installations, Mounted Components |
| Ground Components | 105-136 | Covers, Controls, Tank, Valves, Batteries, Chargers |
| Sizzor Arms | 137-144 | Installation, CM2033, CM2046, CM2546, CM2558, Arm Pads |
| Platform | 145-177 | Handrails, Extendable Deck, Console Box, Worklights, Harness Attach Rings |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Wheel Lugs | 90 ft lb (12.4 kgm) | p. 46 |
| Drive Hub To Drive Motor | 125-150 ft lb (17-21 kgm) | p. 46 |
| Hydraulic Oil Operating Temperature Range 0° F to +23°F | 10W | p. 46 |
| Hydraulic Oil Operating Temperature Range 0° F to +210°F | 10W-20, 10W-30 | p. 46 |
| Steer wheel toe-in | 1/4 inch | p. 75 |
| Relay - 200 Amp/24VDC | 200 Amp/24VDC | p. 107 |
| Fuse - 15 Amp | 15 Amp | p. 131 |
| Platform Capacity (CM2046/CM2558) | 1,000 lb. | p. 45 |
| Drive Hub to Drive Motor Torque | 125-150 ft-lb | p. 46 |
| Sliding Pad Wear Limit | 3.25 inches | p. 54 |
| Lift Cylinder Piston Nut Torque | 400 ft-lb | p. 58 |
| Brake Cylinder Spring Force | 33 lb. | p. 59 |
JLG CM2033, CM2046, CM2546, CM2558 Common Problems This Manual Covers
JLG CM2033 sizzor lift won't respond to controls, need the 24V pump motor relay part number
Check the Ground Components parts listings starting on page 105. The pump motor relay is rated 200 Amp/24VDC and appears in the breakdown on page 107. Match the part number to your serial number range before ordering, since relay listings vary across these older CM-series machines. Order spare mounting hardware from the same exploded view.
Manual Section: Ground Components p. 107Blown main fuse, can't tell which amp rating fits the power circuit
Verify the fuse rating before ordering anything. The 15 Amp control circuit fuse is listed on page 131 and the 200 Amp main power fuse on page 133. Match each fuse to its holder in the exploded views; the two ratings are not interchangeable. Record the part numbers for both while you have the listings open.
Manual Section: Ground Components p. 131Need replacement battery cables and charger parts, unsure which items match this serial number
Inspect the cable ends first, then pull part numbers from the batteries and chargers breakdown in the Ground Components section starting on page 105. Check the 200 Amp main fuse listed on page 133 at the same time; corroded terminals often take the fuse holder with them. Cross-reference every item against your serial number range.
Manual Section: Ground Components p. 105Worn scissor arm sliding pads, need the correct pad kit for ordering
Measure the pads before ordering; replace any sliding pad worn below the 3.25 inch limit shown on page 54. Find arm pad part numbers in the Sizzor Arms section starting on page 137, where each arm stack has its own breakdown. Confirm your model designation first, since pad listings differ between arm assemblies.
Manual Section: Sizzor Arms p. 137Slow weak lift, want pump motor and hydraulic filter part numbers before tearing in
Check the hydraulic parts diagram on page 113 for pump, motor, filter, and tank part numbers. Verify valve and fitting items in the same Ground Components section starting on page 105. Order fluid matched to your climate; the chart on page 46 calls for 10W oil from 0 to 23 degrees F. Confirm your serial range before ordering.
Manual Section: Ground Components p. 113Frequently Asked Questions
How do you reset the 15 Amp circuit breaker on the ground control panel?
The 15 Amp circuit breaker located at the ground control panel can be reset by pressing the push button. This action returns interrupted power to the machine functions. p. 28
What are the replacement battery specifications for the JLG CM2033, CM2046, CM2546, CM2558 sizzor lift?
The standard batteries for all models are 6 Volt, 245 Amp hour (20 hour rate). For increased capacity, high output 6 Volt, 370 Amp hour (20 hour rate) batteries are available for models CM2046, CM2546, and CM2558. p. 45
What is the wheel lug nut torque spec for the JLG CM2033, CM2046, CM2546, CM2558 scissor lift?
The wheel lug nuts must be torqued to 90 ft-lb (12.4 kgm) and should be checked at an interval of 50 hours. p. 46
What is the procedure for checking the hydraulic oil level?
Before checking the hydraulic oil level, operate the machine through one complete cycle of the lift function (full up and down). The oil level should be at the full mark on the side of the hydraulic tank while the machine is in the stowed position. p. 21
What is the replacement thickness for the sliding wear pads?
The original thickness of the sliding wear pads is 3.56 inches (90 mm). They should be replaced when they are worn down to 3.25 inches (83 mm). p. 54
Is this JLG CM2033–CM2558 Series Parts Manual a digital download?
Delivery is instant: a 228-page searchable PDF is yours the second checkout clears. Laptop, tablet, or phone, all fine.
Can I print just the pages I need from this JLG CM2033–CM2558 Series manual?
Yes. No DRM, nothing blocks printing, so run off the pages you need on whatever printer you have.
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