Genie GR-12 Service Manual page 9

November 2005
Section 4 Rev
B
A
B
A
A
A
A
A
A
A
Part No. 84700
Repair Procedures
Introduction .................................................................................................. 4 - 1
Platform Controls
1-1 Circuit Boards .................................................................................... 4 - 2
1-2 Controller Adjustments ....................................................................... 4 - 3
1-3 Software Configuration ....................................................................... 4 - 8
Platform Components
2-1 Platform ........................................................................................... 4 - 12
2-2 Platform Extension ........................................................................... 4 - 12
Mast Components
3-1 Mast ................................................................................................. 4 - 13
3-2 Glide Pads ....................................................................................... 4 - 17
3-3 Lifting Chains ................................................................................... 4 - 17
3-4 Lift Cylinder ...................................................................................... 4 - 20
Ground Controls
4-1 Level Sensor .................................................................................... 4 - 21
Hydraulic Pump
5-1 Function Pump ................................................................................. 4 - 24
Function Manifold
6-1 Function Manifold Components ........................................................ 4 - 26
6-2 Valve Adjustments - Function Manifold ............................................ 4 - 28
6-3 Valve Coils ....................................................................................... 4 - 31
Hydraulic Tank
7-1 Hydraulic Tank ................................................................................. 4 - 33
Steer Axle Components
8-1 Yoke and Drive Motor ...................................................................... 4 - 34
8-2 Steer Cylinder .................................................................................. 4 - 36
8-3 Steer Bellcrank ................................................................................. 4 - 36
Non-steer Axle Components
9-1 Drive Brake ...................................................................................... 4 - 37
Brake Release Hand Pump Components
10-1 Brake Release Hand Pump Components ......................................... 4 - 38
GR-12 • GR-15 • GR-20
TABLE OF CONTENTS
ix