JLG G12-55A Parts Manual User Manual
Illustrated parts manual
This manual is related to the following products:
Table of contents
Document Outline
- 31200728 G10-55A G12-55A (T4i) Parts Manual
- Effectivity Page
- Machine Configuration
- General Information
- Table of Contents
- Section 1 Frame & Attaching Parts
- Section 2 Boom
- Section 3 Attachments
- Figure 3-1 Standard Carriage
- Figure 3-2 Side Tilt Carriage
- Figure 3-3 50 In Side Shift Carriage
- Figure 3-4 Dual Fork Positioning Carriage
- Figure 3-5 90 Degree Swing Carriage
- Figure 3-6 180 Degree Swing Carriage
- Figure 3-7 Sheet Handler Carriage
- Figure 3-8 Forks & Attaching Parts
- Figure 3-9 Fork Mounted Platform
- Figure 3-10 Fork Mounted Hook
- Figure 3-11 General Purpose Bucket
- Figure 3-12 Grapple Bucket
- Figure 3-13 Truss Boom
- Figure 3-14 Truss Boom with Winch
- Figure 3-15 8 Foot Standard Mast
- Figure 3-16 8 Ft Side Tilt Electric Mast
- Section 4 Engine & Attaching Parts
- Section 5 Drive Train
- Figure 5-1 Drivetrain Components
- Figure 5-2 Front Axle
- Figure 5-3 Front Axle - Central Housing & Steering
- Figure 5-4 Front Axle - Differential
- Figure 5-5 Front Axle - Hub Reduction
- Figure 5-6 Front Axle - Brakes
- Figure 5-7 Rear Axle
- Figure 5-8 Rear Axle - Central Housing & Steering
- Figure 5-9 Rear Axle - Differential
- Figure 5-10 Rear Axle - Hub Reduction
- Figure 5-11 Rear Axle - Brakes
- Figure 5-12 Transmission
- Figure 5-13 Transmission - Converter & Input
- Figure 5-14 Transmission - Gearbox Housing
- Figure 5-15 Transmission - Forward Gear Group
- Figure 5-16 Transmission - Reverse Gear Group
- Figure 5-17 Transmission - 1st Shaft Group
- Figure 5-18 Transmission - 2nd Shaft Group
- Figure 5-19 Transmission - 3rd Shaft Group
- Figure 5-20 Transmission - 4th Shaft Group
- Figure 5-21 Transmission - Power Take-Off
- Figure 5-22 Transmission - Control Unit & Pressure Regulator
- Figure 5-23 Transmission - Gearshift System
- Figure 5-24 Transmission - Oil Pump, Filter & Dipstick
- Figure 5-25 Transmission - Transfer Box
- Figure 5-26 Wheel Assembly
- Figure 5-27 Fender Installation
- Section 6 Cab
- Section 7 Controls
- Section 8 Hydraulic Circuits
- Figure 8-1 Supply Circuit
- Figure 8-2 Dump Circuit
- Figure 8-3 Steer Select Circuit
- Figure 8-4 Service Brake Circuit
- Figure 8-5 Boom Joystick Circuit
- Figure 8-6 Frame Level/Auxiliary Controller
- Figure 8-7 Outrigger Controller
- Figure 8-8 Lift Cylinder Circuit
- Figure 8-9 Extend/Retract Cylinder Circuit
- Figure 8-10 Tilt Cylinder & Compensation Cylinder Circuit
- Figure 8-11 Boom Hydraulic Assembly
- Figure 8-12 Auxiliary Hydraulic Circuit
- Figure 8-13 Frame Level Circuit
- Figure 8-14 Outrigger Circuit
- Section 9 Hydraulic Components
- Figure 9-1 Lift Cylinder & Hardware
- Figure 9-2 Extend/Retract Cylinder & Hardware
- Figure 9-3 Tilt Cylinder & Hardware
- Figure 9-4 Compensation Cylinder & Hardware
- Figure 9-5 Frame Level Cylinder & Hardware
- Figure 9-6 Outrigger Cylinder & Hardware
- Figure 9-7 Stabilizer Cylinder & Hardware
- Figure 9-8 Side Tilt Carriage Cylinder
- Figure 9-9 50 In Side Shift Carriage Cylinder
- Figure 9-10 Swing Carriage Cylinder
- Figure 9-11 Grapple Bucket Cylinder
- Figure 9-12 Main Control Valve
- Figure 9-13 Piston Pump
- Figure 9-14 Hydraulic Tank
- Figure 9-15 Steer Select Valve
- Figure 9-16 Brake Valve
- Figure 9-17 Hydraulic Manifold Valve
- Figure 9-18 Decompression Valve
- Section 10 Electrical
- Figure 10-1 Engine Compartment Electrical Installation
- Figure 10-2 Arctic Package Installation
- Figure 10-3 Boom & Frame Electrical Installation
- Figure 10-4 Cab Electrical Installation
- Figure 10-5 Cab Switches
- Figure 10-6 Clearsky Installation
- Figure 10-7 Work Lights
- Figure 10-8 Drive Lights
- Figure 10-9 Engine Harness
- Figure 10-10 Transmission Harness
- Figure 10-11 Frame Harness
- Figure 10-12 VEC Options Harness
- Figure 10-13 Transmission Relay Harness
- Figure 10-14 Enclosed Cab Options Harness
- Figure 10-15 Dash Harness
- Figure 10-16 Instrument Panel Harness
- Figure 10-17 Frame Road Light Harness
- Figure 10-18 Boom Work Light Harness
- Figure 10-19 Cab Road Light Harness
- Figure 10-20 Cab Work Light Harness
- Figure 10-21 A/C Harness
- Figure 10-22 VEC Harness
- Section 11 Decals
- Recommended Spare Parts
- Part Number Index