SkyTrak 6036 Service Manual - Manual (Page 170)

9-57 Model 6036 S/N 9B0499 and Before
Section 9. Hydraulic System
9.3.5 Sequence Valve
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 sequence
valve (3, Fig. 9.33) as required to relieve any
trapped pressure.
3. Tag and disconnect tube assemblies (15, 16
and 17) from connector (10) and run tees (11
and 12) on the sequence valve (3).
4. Tag and disconnect hydraulic hose from run
tee (11).
5. Remove two hex nuts (21), lock washers (19),
flat washers (20) and capscrews (18). Re-
move sequence valve (3) from valve mounting
plate (30).
6. Remove hydraulic fittings from the valve as
required.
b. Disassembly
NOTE: There are no serviceable parts in the steer
sequence valve; do not disassemble.
Remove sequence valve cartridge (Fig. 9.34).
c. Cleaning
Clean metal parts of valve with 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 sequence valve if damaged.
Warning !
Relieve hydraulic pressure before servicing any
hydraulic component. Escaping hydraulic fluid
under pressure can penetrate the skin causing
serious injury.
Warning !
Wait for the hydraulic fluid to cool before servic-
ing any hydraulic component. Hot hydraulic fluid
can cause severe burns.
e. Installation
1. Install connector (10, Fig. 9.33) and run tees
(11 and 12) on sequence valve (3).
2. Position the sequence valve on valve mount-
ing plate (30) and secure with two capscrews
(18), flat washers (20), lock washers (19) and
hex nuts (21).
3. Connect hydraulic tube assemblies (15, 16
and 17) to connector (10) and run tees (11
and 12).
4. Connect hydraulic hose to run tee (11).
5. Check the hydraulic oil level and fill as de-
scribed in the Owners/Operators Manual.
9.3.6 Steer Relief Valve
a. Removal
1. Engage the park lock, place the travel selector
lever in neutral, and stop the engine.
2. Tag and disconnect hydraulic hoses from
branch tee (14, Fig. 9.33) and connector (13).
Fig. 9.34 Valve Cartridge for Sequence, Pressure
Reducing and Counterbalance Valves
Warning !
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.
BODY
CARTRIDGE WITH SEALS
MA0751