Drive Forward Function Inoperative - Genie GR-8 Service Manual

August 2005
REV A
Drive
Forward
Function
Inoperative
Be sure all other
functions operate
normally.
Be sure the circuit
breaker and fuses
are not tripped or
blown.
Be sure the
batteries are fully
charged and
properly connected.
Part No. 72965
With key switch turned
0V
to platform controls and
both Emergency Stop
buttons pulled out to the
position, move the
ON
lift/drive select switch
TS16 to the drive
position. Press and hold
the function enable
switch SW5. Move the
joystick controller JC3 in
the drive forward
direction. Check voltage
on BN/BK wire at drive
forward directional valve
coil Y6.
24 Volts
0 or
Disconnect the wires
infinite
from Y6 and measure
ohms
the coil resistance See
Repair Section.
22 to 24 ohms
Repair or replace the
drive forward directional
valve cartrige (item C or
E) OR consult Genie
Industries Service
Department.
GR-8 • GR-12 • GR-15
Section 5 • Troubleshooting Flow Charts
Repair open in circuit
from Y6 through steer
left control relay CR56
to voltage divider U14.
Replace coil Y6.
Chart 11
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