October 2018
Service and Repair Manual
Fault Codes
Part No. 1268557GT
Z®-135
/70
179
Error Source
Error Type
Effects
Recovery Actions
Secondary Boom
Extend Valve
Fault Check
Limited Speed and Direction frozen at
zero and neutral, Alarm sounds
Check for defective or damaged wiring.
Check for an open or shorted valve coil.
Repair or replace as necessary.
Secondary Boom
Retract Valve
Fault Check
Limited Speed and Direction frozen at
zero and neutral, Alarm sounds
Check for defective or damaged wiring.
Check for an open or shorted valve coil.
Repair or replace as necessary.
Secondary Boom
Up Valve
Fault Check
Limited Speed and Direction frozen at
zero and neutral, Alarm sounds
Check for defective or damaged wiring.
Check for an open or shorted valve coil.
Repair or replace as necessary.
Secondary Boom
Down Valve
Fault Check
Limited Speed and Direction frozen at
zero and neutral, Alarm sounds
Check for defective or damaged wiring.
Check for an open or shorted valve coil.
Repair or replace as necessary.
Secondary Boom
Extend Sequence Valve
Fault Check
Limited Speed and Direction frozen at
zero and neutral, Alarm sounds
Check for defective or damaged wiring.
Check for an open or shorted valve coil.
Repair or replace as necessary.
Secondary Boom
Down Sequence Valve
Fault Check
Limited Speed and Direction frozen at
zero and neutral, Alarm sounds
Check for defective or damaged wiring.
Check for an open or shorted valve coil.
Repair or replace as necessary.
Operational Secondary
Boom Angle Sensor
Value at 5.0 V
Primary up, Secondary up/down and
Extend disabled, Alarm sounds
Check for an open ground circuit going
to the sensor
Value Too High
Primary up, Secondary up/down and
Extend disabled, Alarm sounds
Sensor is out of range. Check sensor
and actuating pin for proper installation.
Repair or replace sensor and
recalibrate.
Value Too Low
Value at 0 V
Primary up, Secondary up/down and
Extend disabled, Alarm sounds
Check for 5.0 VDC at the sensor.
Check for damaged wiring going to the
sensor. Check that the % .0 VDC LED
is lit on the TCON board. Repair or
replace as necessary
Out of Tolerance
Primary up, Secondary up/down and
Extend disabled, Alarm sounds
Recalibrate sensor
Not calibrated
Secondary up only active from TCON,
activate alarm
Perform calibration procedure per
service manual
Just calibrated
Initiate one second beep of audible
warning device
Self-clearing (transient)
Summary of Contents for Genie Z-135/70
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Page 37: ...October 2018 Service and Repair Manual Specifications Part No 1268557GT Z 135 70 23 T ...
Page 135: ...October 2018 Service and Repair Manual Manifolds Part No 1268557GT Z 135 70 121 ...
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Page 153: ...October 2018 Service and Repair Manual Manifolds Part No 1268557GT Z 135 70 139 ...
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Page 159: ...October 2018 Service and Repair Manual Manifolds Part No 1268557GT Z 135 70 145 ...
Page 161: ...October 2018 Service and Repair Manual Manifolds Part No 1268557GT Z 135 70 147 ...
Page 233: ...October 2018 Service and Repair Manual 219 Generator Wiring Schematic ...
Page 236: ...Service and Repair Manual October 2018 222 Hydraulic Generator Welder Option ...
Page 242: ...Service and Repair Manual October 2018 228 Hydraulic Schematic from serial number 535 ...
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