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 1 - SPECIFICATIONS
3121139 – JLG Lift – 1-3
Battery
1.5 TIRES
1.6 FUNCTION SPEEDS
Machine Orientation When Doing Speed
Tests
Lift: Telescope Retracted. Lift Up, Record Time, Lift Down,
Record Time.
Swing: Boom at Full Elevation. Telescope Retracted.
Swing the Turntable 360 degrees, Record Time. Swing the
Opposite Direction, Record Time.
Te l e s cope: Boom at Full Elevation; Telescope Retracted;
Telescope Out, Record Time. Telescope In, Record Time.
Drive (Forward/Reverse): Test should be done on a
smooth level surface. Drive Select Switch should be set to
High Engine. Results should be recorded for a 200 ft.
course. Drive Forward, Record Time. Drive Reverse,
Record Time.
Table 1-7. Caterpillar 3044C/ Caterpillar 3.4
Type Four Stroke Cycle
Cylinders 4 in-line
Bore 3.70 inch (94 mm)
Stroke 4.72 inch (120 mm)
Aspiration turbocharged
Compression ratio 19:1
Displacement
203 in
3
(3.33 L)
Firing Order 1-3-4-2
Rotation (viewed from flywheel) Counterclockwise
Oil Capacity (w/filter) 10.6 quarts (10 L)
Cooling System (Engine Only) 5.8 quarts (5.5 L)
Idle RPM 1000
Low RPM 1800
High RPM - 3044C 2600
High RPM - 3.4 2500
Alternator 60 Amp, belt drive
Table 1-8. GM 3.0L
Fuel Gasoline or Gasoline/LP Gas
No. of Cylinders 4
BHP
Gasol ine
L P
83 hp @ 3000 rpm
75 hp @ 3000 rpm
Bore 4.0 in. (101.6 mm)
Stroke 3.6 in. (91.44 mm)
Displacement 181 cu.in. (3.0 L, 2966 cc)
Oil Capacity w/filter 4.5 qts. (4.25 L)
Minimum Oil Pressure
at i dle
Hot
6 psi (0.4 Bar) @ 1000 rpm
18 psi (1.2 Bar) @ 2000 rpm
Compression Ratio 9.2:1
Firing Order 1-3-4-2
Max. RPM 2800
Table 1-9. Battery Specifications
Voltage 12 Volt
Type 31-5
Cold Cranking Amps 1000 CCA @ 0° F (-18° C)
Reserve Capacity 210 Minutes @ 80° F (27° C)
Table 1-10. Tire Specifications
Size Type
Ply
Rating
Load
Range
Weight
(Tire & Wheel)
15 - 625 Pneumatic
95 psi (6.5 B ar)
16 H 269 lbs.
(122 kg)
15 - 625 Foam-Filled 16 H 544 lbs.
(247 kg)
18 - 625 Pneumatic
85 psi (6.5 Bar)
16 H 288 lbs.
(131 kg)
18 - 625 Foam-Filled 16 H 601 lbs.
(273 kg)
41/ 18LL x 22.5 Foam-Filled 16 H 724 lbs.
(329 kg)
Table 1-11. Function Speeds (In Seconds)
Function 800S 860SJ
Lift Up 59-75 56-73
Lift Down 57-75 56-75
Swing Right & Left* 110-135 110-135
Telescope Out 59-65 56-65
Telescope In 45-57 44-60
Platform Rotate Right & Left** 18-30 18-30
Jib Up N/A 33-47
Jib Down N/A 29-39
Drive (Forward) 33-45 33-45
Drive (Reverse) 33-45 33-45
Drive (Elevated) 46-75 46-75
*Max 10% Difference Between Left & Right
**Max 15% Difference Between Left & Right