Service manual

Part No. 39528 Genie GS-1530 & Genie GS-1930 5 - 29
Service Manual - First Edition
Section 5 - Troubleshooting Flow Charts
Chart 12
Drive Reverse
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.
With the key switch in
platform position and the
Emergency Stop buttons
pulled out to the
ON
position at both the
ground and platform
controls, activate the
drive controller in the
reverse direction and
check to see if the error
indicator light at the
platform controls is on.
light is
on
light is not
on
Connect the positive
lead from a volt meter to
the drive reverse
directional valve coil
(item J) wire terminal
without disconnecting
the wire, and the
negative lead of the volt
meter to the brown
ground wire on the
function manifold.
Activate drive in the
reverse direction and
check the voltage.
Disconnect the wires
from the drive reverse
directional valve coil
(item J) and check the
resistance. See Repair
Section.
0V
Repair open in the wht
wire from the drive
reverse directional valve
coil (A7-reverse coil) 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
18 to 20
ohms
Replace the drive
reverse directional valve
coil (item J).
Repair or replace the
drive reverse directional
valve (item J) OR
consult the Genie
Industries Service
Department.
Replace the drive
forward/reverse valve
cartridge (item J) OR
consult the Genie
Industries Service
Department.