Boom Retract Function Inoperative - Genie S-60 Service Manual

Section 5 • Troubleshooting Flow Charts
Chart 17
Boom Retract
Function
Inoperative
Be sure all other
functions operate
normally.
5 - 36
With key switch turned
to ground controls and
0V
both Emergency Stop
buttons pulled out to the
position, hold the
ON
function enable switch to
either side and move the
boom extend/retract
toggle switch TS15 in
the direction.
RETRACT
Check voltage on blk/
red-4 wire on boom
extend/retract
proportional valve coil
(item G).
12V or more
Continued on the next
page.
Genie S-60 & Genie S-65
Third Edition • First Printing
Hold the function enable
switch to either side and
9 to 10V
move the boom extend/
retract toggle switch in
the direction.
EXTEND
Check voltage at TB9.
0V
With key switch turned 9 to 10V Repair open in blk/red-3
to platform controls and
both Emergency Stop
buttons pulled out to the
position, press down
ON
the foot switch and
move the boom extend/
retract toggle switch
TS7 in the
RETRACT
direction. Check voltage
at TP9.
0V
Press down the foot
0V
switch and check
voltage at center
terminal of TS7.
12V or more
Test extend/retract bad
toggle switch, see
Repair Section.
good
Repair open in blk/red
wire circuit from TS7 to
TP9.
Repair open in blk/red-4
wire circuit from TB9 to
boom extend/retract
proportional valve coil
OR repair open in brn
ground wire circuit to
valve coil.
wire from TP9 to TB9.
Repair open in power
supply circuit from TP24
to TS7.
Replace extend/retract
toggle switch.
Part No. 65196