Warning – SkyTrak 6036 Service Manual User Manual
Page 172
9-59
Model 6036 S/N 9B0499 and Before
Section 9.
Hydraulic System
b. Disassembly
NOTE: There are no serviceable parts in the
pressure reducing valve; do not disassemble.
Remove pressure reducing valve cartridge (Fig.
9.34).
c.
Cleaning
Clean metal parts of valve in an approved cleaning
solvent and blow dry.
d. Inspection and Replacement
1.
Inspect valve cartridge (Fig. 9.34) for wear,
scoring, damaged seals and other damage.
Replace cartridge if damaged.
2.
Discard entire pressure reducing valve if
damaged.
e.
Installation
1.
Install run tees (11 and 12, Fig. 9.33) in
pressure reducing valve (4).
2.
Position the pressure reducing valve on valve
mounting plate (30) and secure with two
capscrews (18), lock washers (19) and hex
nuts (21).
3.
Connect tube assemblies (16 and 17) and
hydraulic hoses to run tees (11 and 12) on the
pressure reducing valve.
4.
Refer to paragraph 9.3.8 for installation of the
counterbalance valve.
5.
Bleed brake circuit as described in paragraph
9.3.2g.
9.3.8 Counterbalance Valve
(S/N 8F0235 and before only)
a.
Removal
1.
Engage the park lock, place the travel selector
lever in neutral, and stop the engine.
2.
Slowly loosen the fittings at the counterbal-
ance valve (3, Fig. 9.36) to relieve any trapped
pressure.
Warning !
Warning !
3.
Tag and disconnect hydraulic hoses to elbows
(6, Fig. 9.36) in counterbalance valve (3).
4.
Remove two hex nuts (13), lock washers (12)
and capscrews (1) to detach the counterbal-
ance valve and pressure reducing valve (11)
from valve mounting plate (14).
5.
Refer to paragraph 9.3.7 for maintenance
information for the pressure reducing valve.
6.
Remove hydraulic fittings from valve as
required.
Relieve hydraulic pressure before servicing any
hydraulic component. Escaping hydraulic fluid
under pressure can penetrate the skin causing
serious injury.
Wait for the hydraulic fluid to cool before servic-
ing any hydraulic component. Hot hydraulic fluid
can cause severe burns.
Fig. 9.36 Counterbalance Valve Installation
MACHINE
FRONT
1.
Capscrew
2.
Elbow
3.
Counterbalance Valve
4.
Elbow
5.
Hose
6.
Elbow
7.
Reducer (3)
8.
Nut (3)
9.
Run Tee
10. Steer Select Valve Subplate
11. Pressure Reducing Valve
12. Lock Washer (2)
13. Hex Nut (2)
14. Valve Plate
4
P
2
1
3
5
8 7
9
10
N
11
12
13
14
6
7
8
8
7
MA0771
HOSE CONNECTIONS
N.
To front steering unit
P.
To steering unit