JLG 26MRT electrical schematic diagram for Yanmar engine, showing relays, switches, and sensors, sheet 1 of 2. JLG 26MRT Service Manual — Wiring Diagrams $29.99

JLG T350, T500J Aerial Platform Troubleshooting Manual (incl. Wiring)

$39.99

Model: T350 | T500J
Type: Aerial Platform
225 Pages·10 MB·Searchable PDF·English·Print-Ready
  • ✓ Wiring Diagrams
  • ✓ Hydraulic Schematics
  • ✓ Torque Specs
  • ✓ Bookmarks
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JLG T350, T500J electrical schematic diagram showing ground control box wiring, connectors, and system components.
JLG T350, T500J Aerial Platform Troubleshooting Manual (incl. Wiring)
$39.99

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Factory fault-mapping for the JLG T350 or T500J aerial platform starts here. This 225-page troubleshooting manual (OEM #3121203) traces every fault code, failed function, and wiring fault from symptom to root cause. Inside: wiring schematics with full connector pinouts for the ground, platform, and drive modules, plus hydraulic schematics for both electric- and engine-powered configurations. The fault diagnostics chapter covers CANBUS failures, solenoid open/short circuits, joystick faults, and tilt sensor errors, with step-by-step component checks for the hydraulic pump, power module, and outrigger switches. Max hydraulic system pressure on the T350 is 2700 psi (186 Bar); fill the engine-powered unit's fuel tank to exactly 1.6 gallons (6.0 L) before running engine diagnostics. Your boom is down and the display is throwing codes. Bookmarked and searchable. Open it on a tablet at the machine and trace the fault.

What's Inside This JLG T350, T500J Manual

SystemPagesKey Topics
Introduction5-16How to Use This Manual, Visual Inspection, Connector References, Reading Fault Codes, User Fault Codes, Control Module Power, Tilt, Critical Vehicle Interlock Scenarios
Troubleshooting Safety Precautions17-18General Safety, Hydraulic System Safety, Troubleshooting Safety
Troubleshooting by Function29-40All Functions Inoperative, Pump Motor Will Not Operate, Engine Will Not Crank, Ground/Platform Controls Inoperative, Lift Down/Up Function Inoperative
Troubleshooting by Fault Messages41-116Battery Voltage Too High/Low, Canbus Failure, Chassis Tilt Sensor, Solenoid Open/Short Circuits, Function Locked Out/Problem, Joystick Faulty
Component Checks117-128DC Powered Machine (Hydraulic Pump, Power Module), Engine Powered Machine (Hydraulic Pump, Power), Joystick Diagnostics, Outrigger Switches, Tilt Sensor, Transport Limit Switch
Possible Causes129-132Bad Contacts, Incorrect System Setup, Improper Battery Level, Defective Modules, Wiring Issues, Stuck/Defective Switches, Hydraulic Fluid Issues, Engine Problems
System Test Messages133-158Battery Lamp Indicators, Battery Voltage, Check Choke Switch, Check Jib Down/Up Switch, Check Power & CAN Wiring, Solenoid Open/Short Circuits, Joystick to Max
Calibration Messages159-160Reserved for Calibration Process Messages
Electrical Reference161-189Connector Index, Ground Module Pinouts, Platform Module Pinout, Drive Module Pinout, Connector Loading Diagrams, Working with AMP/Deutsch Connectors, Trailer Wiring
Hydraulic References190-201Solenoids, Minimum Operating Pressure, Hydraulic Test Ports, Hydraulic Schematic (Electric Powered Machines), Hydraulic Schematic (Engine Powered Machines)
Jlg Analyzer202-213Connecting Analyzer, Using Analyzer, Changing Access Level, Adjusting Parameters, Machine Setup, System Test, User Fault Codes
Multimeter Basics214-217Voltage Measurement (DC), Resistance Measurement, Continuity Measurement, Current Measurement (DC)
Specifications218-223Operating Specifications, Dimensional Data, Fluid Capacities, Electric Power Unit Specifications, Tire Specifications, Engine Specifications, Battery Specifications

Quick Reference Specifications

SpecificationValuePage
Maximum Allowable Tow Speed65 mph (105 kph)p. 218
Maximum Work Load (Capacity) w/o Rotator500 lbs. (230 kg)p. 218
Max. Vertical Platform Height (Unrestricted)35 ft. (10.6 m)p. 218
Max. Hydraulic System Pressure2700 psi (186 Bar)p. 218
Fuel Tank Capacity1.6 Gal. (6.0 L)p. 219
Hydraulic Tank Filling Volume4.4 Gallon (16.65 Liters)p. 219
Engine Displacement16.5 cu.in. (270 cm3)p. 221
Engine Max. Output9 bhp (6.6 kW) at 3,600 rpmp. 221
Engine Battery Cranking Performance (0°F)450 ampsp. 221
Battery Voltage6-Voltp. 221
Wheel Nut Torque (ANSI)90-120 ft. lbs. (122-164 Nm)p. 220
Hydraulic Oil Viscosity Index (Mobilfluid 424)152p. 223
BrandJLG
ModelT350, T500J
Machine TypeAerial Platform
Manual TypeTroubleshooting Manual
LanguageEnglish
FormatSearchable PDF (Digital Download)
Pages225
File Size10 MB
Manual No.3121203
Wiring DiagramsYes
Hydraulic SchematicsYes
Torque SpecificationsYes
Bookmarked / IndexedYes
SKU: JLG-T350T500J-MAN-BD0E6 Categories: , Tags: , , Brand:

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