Genie GS-2046 Service Manual page 148

Section 5 • Troubleshooting Flow Charts
Chart 13
Machine Will
Not Drive At
Full Speed
Be sure the circuit
breaker and fuse are
not tripped or blown.
Be sure the batteries
are fully charged and
properly connected.
5 - 22
With the key switch
light is
turned to platform
not on
controls and both
Emergency Stop buttons
pulled out to the
ON
position and the platform
in the stowed position,
drive the machine in
either direction. Is the
error indicator light on at
the platform controls?
light
is on
Check voltage at the
0V
WH 39C-pothole sw
wire at pothole limit
switch LS7.
20V or more
Raise the platform
approximately 3 feet
0V
(0.9 m) and check the
voltage at the output
side of LS7.
20V or more
Check voltage at the
0V
WH 21B-pothole sw wire
on the input side of limit
switch LS8.
20V or more
Check voltage on the 0V
output side of LS8.
20V or more
Repair open in the WH
B10-pothole sw wire
from the output side of
LS8 to the ECM U5 OR
replace U5 OR see Chart
10A, Brake Release
Function Inoperative.
Genie GS-2046 and GS-2646 and GS-3246
Raise the platform
approximately 3 feet
yes
(0.9 m) and drive the
machine.
Does the machine drive
at a reduced speed?
no
Consult the Genie
Industries Service
Department.
Repair open in the WH
39C-pothole sw wire
from LS7 to the multi-
function alarm H5.
Adjust LS7 so the
pothole arm activates
the switch OR replace
the limit switch contact
OR replace LS7.
Repair open in the WH
21B-pothole jumper wire
from the output side of
LS7 to the input side of
LS8.
Adjust LS8 so the
pothole arm activates
the switch OR replace
the limit switch contact
OR replace the LS8.
June 2003
REV A
Raise the platform to
more than 6 feet (1.8 m)
and drive the machine. If
the machine does not
drive and an alarm
sounds, the machine is
operating normally.
Check the pothole
guards for obstructions
OR test the pothole
guard limit switches
(See Repair section).
Part No. 72972