Service Manual Owner's manual
Table Of Contents
- Section 1. Specifications
- Section 2. General
- Section 3. Chassis & Turntable
- 3.1 Tires & Wheels
- 3.2 Wheel Drive Assembly, 2WD
- 3.3 Drive Motor - 2WD (Prior to S/N 83331)
- 3.4 Drive Motor (S/N 83331 to Present)
- 3.5 Torque Hub
- 3.6 Wheel Drive Assembly, 4WD
- 3.7 Torque Hub (4WD Machines W/ Integral Brake)
- Roll, Leak and Brake Testing
- Tightening and Torquing Bolts
- Main Disassembly
- Input Carrier Disassembly
- Output Carrier Disassembly
- Housing-Spindle Disassembly
- Spindle-Brake Disassembly
- Input Carrier Sub-Assembly
- Output Carrier Sub-Assembly
- Spindle-Brake Sub-Assembly
- Housing-Spindle Sub-Assembly
- DW2B Integral Brake Check
- Main Assembly
- 3.8 Drive Brake, 2WD - Mico (Prior to S/N 83331)
- 3.9 Re-Aligning torque hub input coupling
- 3.10 Oscillating Axle Bleeding Procedure and Lockout Test
- 3.11 Swing Drive Hub
- 3.12 Swing Brake - Mico (Prior to S/N 66417)
- 3.13 Swing Motor (Prior to S/N 66417)
- 3.14 Swing Motor (S/N 66417 to Present)
- 3.15 Procedure For Setting Gear Backlash
- 3.16 Swing Bearing
- 3.17 Rotary Coupling
- 3.18 Generator
- 3.19 Ford EFI Engine
- 3.20 Deutz EMR 2 (S/N 85332 to Present)
- 3.21 GM Engine General Maintenance
- 3.22 GM Engine Dual Fuel System
- Fuel Filter
- Electric Lock Off
- EPR Assembly
- Low Pressure Regulator (LPR)
- Air Fuel Mixer
- Electronic Throttle Control (ETC)
- Engine Control Module
- Heated Exhaust Gas Oxygen Sensor
- Gasoline Multi Point Fuel Injection System (MPFI)
- Gasoline Fuel Pump
- Gasoline Pressure And Temperature Sensor Manifold
- Fuel Filter
- Fuel Injector Rail
- Fuel Injector
- 3.23 GM Engine Fuel System Repair
- Propane Fuel System Pressure Relief
- Propane Fuel System Leak Test
- Propane Fuel Filter Replacement
- Electronic Pressure Regulator (EPR) Assembly Replacement
- Temperature Manifold Absolute Pressure (TMAP) Sensor
- Electronic Throttle Control Replacement
- Mixer Replacement
- Coolant Hose Replacement
- Vapor Hose Replacement
- Engine Control Module Replacement
- Heated Exhaust Gas Oxygen Sensor Replacement
- 3.24 GM Engine LPG Fuel System Diagnosis
- Section 4. Boom & Platform
- Section 5. Hydraulics
- Section 6. JLG Control System
- Section 7. Basic Electrical information & schematics
SECTION 3 - CHASSIS & TURNTABLE
3121139 – JLG Lift – 3-143
6. If the oil level is below the "ADD" mark, proceed to
Step 7 and 8 and reinstall the dipstick into the dip-
stick tube.
7. Remove the oil filter cap from the valve rocker arm
cover.
8. Add the required amount of oil to bring the level up
to but not over "FULL" mark on the dipstick.
9. Reinstall the oil fill cap to the valve rocker cover and
wipe away any excess oil.
Changing The Engine Oil
WHEN CHANGING THE OIL, ALWAYS CHANGE THE OIL FILTER.
CHANGE OIL WHEN THE ENGINE IS WARM FROM OPERATION AS
THE OILS WILL FLOW FREELY AND CARRY AWAY MORE IMPU-
RITIES.
To change the oil use the following steps:
1. Start the engine and run until it reaches normal
operating temperature.
2. Stop the engine.
3. Remove the drain plug and allow the oil to drain.
4. Remove and discard the oil filter and its sealing ring.
5. Coat the sealing ring on the filter with clean engine
oil and wipe the sealing surface on the filter
mounting surface to remove any dust, dirt and
debris. Tighten the filter securely (follow the filter
manufacturers instructions). Do not over tighten.
6. Check the sealing ring on drain plug for any dam-
age, replace if necessary, wipe the plug with a clean
rag, and wipe the sealing surface on the pan and
reinstall the pan plug. Do not over tighten.
7. Fill the crankcase with oil.
8. Start the engine and check for oil leaks.
9. Stop the engine and check the oil level to insure the
oil level is at "FULL".
10. Dispose of the oil and filter in a safe manner.
Coolant Fill Procedure - Dual Fuel Engine
DAMAGE TO THE ENGINE COULD OCCUR IF NOT PROPERLY
FILLED WITH COOLANT. LPG FUELED ENGINES ARE MOST
PRONE TO CREATING AN AIR LOCK DURING A COOLANT FILL
OPERATION DUE TO THE ELECTRONIC PRESSURE REGULATOR
(EPR) BEING THE HIGHEST POINT IN THE COOLING SYSTEM. AN
EPR THAT APPEARS TO HAVE FROST FORMING ON IT IS A SIGN
THAT THE ENGINE COOLING SYSTEM CONTAINS AIR. THE
APPEARANCE AND TEMPERATURE OF THE EPR SHOULD BE
MONITORED DURING THE COOLANT FILL OPERATION. A WARM
EPR IS AN INDICATION THAT THE COOLING SYSTEM IS PROP-
ERLY FILLED AND FUNCTIONING.
MAKE SURE ENGINE IS COOL BEFORE PERFORMING ANY MAIN-
TENANCE WORK.
1. Loosen the worm gear clamp on the coolant line
running into the EPR as shown below and remove
the hose from the EPR. Place a rag under the hose
to prevent coolant from running onto the engine/
machine.