Service manual

Part No. 39528 Genie GS-1530 & Genie GS-1930 4 - 13
Service Manual - First Edition Section 4 - Scheduled Maintenance Procedures
10 Tag the forward and the reverse valve coils.
Remove the coils from the valve.
The forward valve coil has white
and brown wires attached.
The reverse valve coil has
white/black and brown wires
attached.
For reassembly, it will be helpful to
leave the wire harness attached to
the valve coils.
11 Remove the drive forward/reverse valve from the
function manifold. Cap the open port of the
manifold.
12 Carefully inspect the hex portion of the valve for
an identification stamp.
Result: SV10-4727 is stamped on the hex
portion of the drive forward/reverse valve. This
indicates the machine is equipped with a
dynamic brake valve. Proceed to step 13.
Result: SV10-4727 is not stamped on the hex
portion of the drive forward/reverse valve. This
indicates the machine is not equipped with a
dynamic brake valve. Proceed to step 18.
13 Install the drive forward/reverse valve removed
in step 11 into the function manifold and
securely tighten. Torque to 25 ft-lbs / 34 Nm.
14 In order, install the reverse valve coil (with
white/black and brown wires), spacer washer
and the forward valve coil (with white and brown
wires) onto the valve.
For the machine to function
correctly, the reverse valve coil
must be closest to the manifold.
TABLE B PROCEDURES
15 Install the coil nut onto the valve and tighten.
Torque to 60 in-lbs / 7 Nm.
16 Connect the battery pack to the machine.
7 Replace the brakes and repeat this procedure
beginning with step 1. Refer to Repair Procedure
8-1, How to Remove a Drive Brake.
18 Contact the Genie Industries Service Parts
Department and order kit part number 105457.
19 Install the new valve received in the kit and
mark the new valve with a white paint pen to
identify new valve installation.
20 Repeat this procedure beginning with step 1.
If the machine fails to stop within the specified
stopping distance after installing new brakes,
please contact the Genie Industries Scissors
Service Department, 1-800-536-1800 Ext. 8710.