Service manual

Part No. 39528 Genie GS-1530 & Genie GS-1930 5 - 27
Service Manual - First Edition
Section 5 - Troubleshooting Flow Charts
Brake Release
Function
Inoperative
Be sure, if the Error
Indicator light is on at
the platform controls,
you refer to the specific
chart that relates to the
error code that is
displayed on the ECM.
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.
Chart 10A
wheels
turn
Turn the brake release
valve (item N) clockwise
all the way and try to
rotate the wheels.
Chock the wheels at the
steer end. Jack the non
steer end of the
machine up
approximately 4 inches
(10 cm) and place jack
stands under the
machine for support.
Turn the brake release
knob (item N)
counterclockwise all the
way and pump the hand
pump fully 13-15 times
or until much resistance
is felt. Turn each wheel
by hand. Each wheel
should turn freely
without much effort.
wheels
turn
wheels
do not
turn
Rebuild or replace the
brakes OR replace the
brake release valve
(item N) OR consult the
Genie Industries Service
Department.
Attempt to drive the
machine in either
direction and have an
assistant try to rotate the
non steer wheels. This
will require 2 people.
wheels
turn
If machine still does not
drive at full speed with
the platform in the
stowed position, replace
the joystick controller
OR replace the main
circuit board at the
platform controls OR
replace the ECM OR
consult the Genie
Industries Service
Department.
wheels
do not
turn
Plumb a 0 to 500 psi
(34.5 bar) gauge into the
hose from the function
manifold to the brake.
Attempt to drive the
machine in either
direction and read the
pressure on the gauge.
200 to
300 psi
Pressure is good.
Replace the brakes OR
consult the Genie
Industries Service
Department.
less
than
200 psi
Replace the shuttle
valve (item O) OR the
0.025" orifice (item E)
may be plugged OR
replace the brake
release valve (item N)
OR the function
manifold or brake
release manifold may
have an internal defect
OR consult the Genie
Industries Service
Department.
wheels
do not
turn