Service manual

Part No. 39528 Genie GS-1530 & Genie GS-1930 5 - 21
Service Manual - First Edition
Section 5 - Troubleshooting Flow Charts
Chart 8
Steer Left
Function
Inoperative
Be sure all other
functions operate
normally.
Be sure the circuit
breaker and fuse are
not tripped or blown.
Be sure the batteries
are properly connected.
Be sure the batteries
are fully charged.
no
With the key switch in
platform position and
both Emergency Stop
buttons pulled out to the
ON position, activate the
steer rocker switch in
the
LEFT direction and
check to see if the error
indicator light at the
platform controls is on.
light is
on
light is not on
Disconnect the wires
from the coil on the
steer left directional
valve on the function
manifold (item F) and
check the resistance of
the valve coil (See
Repair Section).
0V
Repair open in the wht
wire (B7-left coil) from
the coil on the steer left
directional valve (item F)
to the ECM OR repair
open in the brown
ground wire circuit from
the manifold to the
battery module tray OR
replace the ECM OR
consult the Genie
Industries Service
Department.
24V
0 or
infinite
ohms
26 to 28
ohms
Replace the coil.
Repair or replace the
steer directional valve
cartridge (item F) OR
consult the Genie
Industries Service
Department.
Activate the steer left
function. Does the motor
turn on?
Check continuity of the
steer microswitch.
Replace the steer left/
right micro switch inside
the drive controller
handle.
bad
good
yes
Check for wire continuity
from the steer
microswitch to the
terminal strip OR
replace the main circuit
board at the platform
controls.
Continued on the next
page.
Connect the positive
lead from a volt meter to
the steer left directional
valve coil (item F) wire
terminal without
disconnecting the wire,
and the negative lead of
the volt meter to the
brown ground wire on
the manifold. Activate
the steer rocker switch
in the
LEFT direction and
check the voltage.