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SkyTrak 6036 Service Manual User Manual

Page 175

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Section 9

Hydraulic System

Model 6036/6036T S/N 9B0500 thru 14833

9-25

Fig. 9.14 Brake Circuit – Without De-Clutch

4.

Park the forklift on level ground and engage
the park lock.

5.

Check service brakes with brakes at room
temperature. Select second gear and fully
apply service brakes. Switch park lock to
“disengaged” position. The forklift must not
move when engine is brought up to full throttle
while transmission selector is shifted to either
“forward” or “reverse”.

6.

If the service brakes do not meet performance
requirements, locate the cause of the problem
and correct before putting the vehicle into
service.

The park lock should be tested whenever repairs
or adjustments are made to park lock components.

1.

Start the engine, park the forklift on level
ground and level the frame.

2.

Check park lock with 6000 lbs. on forks.

3.

Park up-grade on 30° ramp, shift transmission
to neutral, engage the park lock and release
service brakes, the forklift must not roll.

4.

If the park lock test does not meet perform-
ance requirements (refer to Troubleshooting,
paragraph 9.8) and locate the cause of the
problem and correct before putting the vehicle
into service.

0-1000 PSI

PRESSURE

GAUGE

PARK LOCK RELEASE VALVE

TO POWER

STEERING

UNIT

0-1000 PSI

PRESSURE GAUGE

INSTALLED IN PARK LOCK BLEEDER

SERVICE BRAKE VALVE

STAINER

0-1000 PSI

PRESSURE

GAUGE

30

GPM

15

GPM

PRESSURE

REDUCING

VALVE 525

±

25 PSI

A

B

C

D

D

C

PARK
LOCK

CHECK

VALVE

SEQUENCE

VALVE

610 - 660 PSI

TANDEM

PUMP

A

B

BRAKES

APPLIED

BRAKES NOT

APPLIED

C

D

D

C

RETURN FILTER

RESERVOIR

SERVICE BRAKE

VALVE 525 ± 25

PSI

ENGAGED

DISENGAGED

FROM THE CONTROL

VALVES

MA3050