Jib Boom Down Function Inoperative - Genie S-60 Service Manual

Section 5 • Troubleshooting Flow Charts
Chart 27
Jib Boom Down
Function
Inoperative
Be sure all other
functions operate
normally.
5 - 58
With the key switch
turned to ground
controls and both
0V
Emergency Stop buttons
pulled out to the
ON
position, hold the
function enable switch to
either side and move the
jib boom toggle switch
TS19 in the
DOWN
direction. Check voltage
at the grn/blk-4 wire on
the jib boom down
directional valve
(item DD).
12V
With the key switch
turned to platform
0V
controls and both
Emergency Stop buttons
pulled out to the
ON
position, press down the
foot switch and move
the jib boom toggle
switch TS24 in the
direction. Check
DOWN
voltage at TB18.
12V
Continued on the next
page.
Genie S-60 & Genie S-65
Third Edition • First Printing
Hold the function enable
switch to either side and
move the jib boom
12V
toggle switch in the
direction. Check
DOWN
voltage at TB18.
0V
Repair open in red
power wire circuit from
key switch to TS12 to
TS19 OR replace TS19.
Press down the foot 12V
switch and move the jib
boom toggle switch in
the direction.
DOWN
Check voltage at TP18.
0V
With the key switch
12V
turned to platform
controls and both
Emergency Stop buttons
pulled out to the
ON
position, press down the
foot switch and check
voltage on the center
terminal of the jib boom
toggle switch.
0V
Check the voltage at
0V
terminal #30 on CR13.
12V
0V
Check the voltage at
terminal #87a on CR13.
12V
Repair open in red wire
from terminal#87a on
CR13 to TS8 OR
consult Genie Industries
Service Department.
Repair open in grn/blk-4
wire from TB18 to jib
boom down directional
valve OR repair open in
brn ground wire circuit to
directional valve.
Repair open in grn/blk-3
wire from TP18 to TB18.
Repair open in grn/blk
wire from TS24 to TP18
OR replace TS24.
Repair open in red wire
from boom controller to
CR13 OR repair open in
brn ground wire circuit to
CR13.
Replace CR13.
Part No. 65196