JLG Skytrak 6036 Service Manual page 267

Trouble
Switches and Solenoids—PARK LOCK SWITCH & PARK LOCK RELEASE VALVE SOLENOID (cont'd)
Park lock switch
fails to engage
park lock brake in
engaged position
Switches and Solenoids—REVERSE SWITCH AND BACKUP ALARM
Backup alarm
doesn't sound
with travel select
lever in REVERSE.
Backup alarm
sounds with travel
select lever in
NEUTRAL AND
FORWARD
Switches and Solenoids—STEERING SELECT SWITCH AND SOLENOID
Steering select
switch fails to
select mode or
selects incorrect
steering mode.
Hourmeter
Doesn't
Operate.
Hourmeter is
Inaccurate.
Model 6036 S/N 9B0499 and Before
Probable Cause
1. Park lock switch should be
open in the engaged
position.
2. Listen for the shifting of the
solenoid as an assistant
moves the park lock switch
from the disengaged to the
engaged position.
1. No voltage at backup
alarm (16, Fig. 10.5);
broken wire or circuit
breaker (11) doesn't reset.
2. Defective reverse switch
(53, Fig. 10.5).
1. Short circuit in wiring.
2. Defective reverse switch
(53, Fig. 10.5).
1. Short circuit or broken
wire.
2. Circuit breaker (12, Fig.
10.5) stuck in open
position.
3. Steering select switch (48,
Fig. 10.5) is defective.
4. Steering select solenoid
(55, Fig. 10.5) is defective.
Gauges and Indicator Lights—HOURMETER
1. Defective wiring and
ground.
2. Incorrect voltage at meter
terminals.
Check running indicator flag
wheel.
Remedy
Repair or replace park lock
switch if it isn't open in the
engaged position.
If solenoid fails to shift, refer
to paragraph 10.7.5 and
repair or replace the park lock
release valve solenoid.
Replace wiring and circuit
breaker as required.
Replace reverse switch.
Determine and repair cause of
short circuit.
Test and replace reverse
switch as required.
Eliminate short or repair or
replace wire.
Replace circuit breaker.
Remove steering select
switch and check for
continuity in each position and
replace switch if defective.
Remove steering select
solenoid and test for correct
operation.
Renew wiring and correct
ground.
Required voltage is 9 to
36 Vdc.
Replace hourmeter if
defective.
Section 10. Electrical System
Reference
See para. 10.7.4
See para. 10.7.5
See para. 10.4
See para. 10.7.6
See para. 10.2.2
See para. 10.7.6
See para. 10.7.7
See para. 10.4
See para. 10.7.7
See para. 10.7.8
See para. 10.8.3
See para. 10.8.3
See para. 10.8.3
10-73