Genie Z-30/20N Service Manual page 11

April 2016
Section 5
Section 6
Part No. 139378
Manifolds ............................................................................................................. 78
7-1 Function Manifold Components ..................................................................... 78
7-2 Valve Adjustments - Function Manifold .......................................................... 82
How to Adjust the System Relief Valve ........................................................... 82
How to Adjust the Primary Boom Down Relief Valve...................................... 82
How to Adjust the Secondary Boom Down Relief Valve ................................. 83
How to Adjust the Primary Boom Extend Relief Valve.................................... 83
How to Adjust the Turntable Rotate Relief Valve ............................................ 84
7-3 Jib Boom and Platform / Jib Boom Rotate Manifold Components ................. 85
7-4 Valve Coils ..................................................................................................... 87
How to Test a Coil Diode ................................................................................ 88
Turntable Rotation Components ...................................................................... 90
8-1 Turntable Rotation Hydraulic Motor ............................................................... 90
Steer Axle Components ..................................................................................... 91
9-1 Hub and Bearings .......................................................................................... 91
How to Remove the Hub and Bearings ........................................................... 91
How to Install the Hub and Bearings ............................................................... 91
Non-steer Axle Components ............................................................................. 93
10-1 Motor Controller ........................................................................................... 93
Fault Codes ......................................................................................................... 94
Introduction ........................................................................................................... 94
Fault Code Charts ........................................................................................... 96
Schematics .......................................................................................................... 99
Introduction ........................................................................................................... 99
Electrical Symbol Legend ................................................................................... 100
Hydraulic Symbols Legend ................................................................................. 101
Limit Switch Location Legend ............................................................................. 102
Z-30/20N • Z-30/20N RJ • Z-34/22 • Z-34/22N
Table of Contents
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