JLG Skytrak 6036 Service Manual page 274

Section 10. Electrical System
Trouble
Windshield Washer/Wiper for Enclosed Cab—GENERAL (cont'd)
Wiper shuts off
but blades do not
return to park
position.
Wiper will not shut
off.
Wiper runs but
blades do not
move.
10-80
Probable Cause
1. Remove connector from
terminal P of wiper motor
and connect a jumper from
terminal L to P and a 12
Vdc source to terminal P.
2. If wiper is inoperative or
doesn't park, check park
switch actuator and brush
holder assembly in wiper
motor.
3. If wiper runs and parks,
use a test lamp to check
for current flow between
terminals P and L.
4. If lamp doesn't light, check
for open in green wire from
wiper switch to wiper
motor.
5. If lamp lights, check for
open in wire 32 to circuit
breaker (12, Fig. 10.5).
Remove connectors from
wiper terminals P and L.
Connect a jumper from
terminal P to L and a 12 Vdc
source to terminal P.
1. Check wiper linkage
connection to wiper crank
arm.
2. Wiper linkage is connected
but wiper gear is stripped.
3. Linkage is disconnected.
Remedy
If wiper is inoperative or
doesn't park proceed to step
2; if wiper runs and parks
proceed to step 3.
Repair or replace as required.
If lamp doesn't light, proceed
to step 4; if lamp lights,
proceed to step 5.
Repair or replace green wire
as required; if green wire
provided continuity, replace
wiper switch.
Repair or replace as required.
If the wiper parks, replace the
wiper switch; if the wiper still
runs, repair wiper motor by
checking the park switch
actuator and the brush holder
assembly.
If the linkage is connected,
refer to step 2; if linkage is
disconnected, refer to step 3.
Repair wiper motor.
Connect linkage and check
system.
Model 6036 S/N 9B0499 and Before
Reference
See para. 10.10.3
See para. 10.10.3
See para. 10.10.3
See para. 10.10.1
See para. 10.3
See para. 10.10.3
See para. 10.10.3
See para. 10.10.3
See para. 10.10.3