Boom Down Function Inoperative - Genie S-60 Service Manual

Third Edition • First Printing
Boom Down
Function
Inoperative
Be sure all other
functions operate
normally.
Part No. 65196
With key switch turned
to ground controls and
both Emergency Stop
0V
buttons pulled out to the
position, hold the
ON
function enable switch to
either side and move the
boom up/down toggle
switch TS16 in the
direction. Check
DOWN
voltage on red/wht wire
on boom up/down
proportional valve coil
(item P).
20V or more
Continued on the next
page.
Genie S-60 & Genie S-65
Section 5 • Troubleshooting Flow Charts
Hold the function enable
switch to either side and
move the boom up/down
6 to 7V
toggle switch in the
direction and
DOWN
check voltage at TB3.
0V
6 to 7V
With key switch turned
to platform controls and
both Emergency Stop
buttons pulled out to the
position, press down
ON
the foot switch and
move the boom
controller in
DOWN
direction. Check voltage
at TP3.
0V
Press down the foot
0V
switch and check
voltage at terminal "+"
on the boom controller.
12V or more
Re-adjust boom
controller (see Repair
Section) OR replace
boom controller OR
consult Genie Industries
Service Department.
Chart 15
Repair open in red/wht-4
wire circuit from TB3 to
boom up/down
proportional valve coil
OR repair open in brn
ground wire circuit to
valve coil.
Repair open in red/wht-3
wire from TP3 to TB3.
Repair open in power
supply circuit from TP24
to boom controller OR
repair open in brn
ground wire circuit from
ground to boom
controller.
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