6-28
Lift lock check valve
(32.5~36.2 lbf ft)
.
4.5~5.0 kgf m
.
Seal
Dust wiper
Seal plate
Secondary main relief valve
(32.5~36.2 lbf ft)
.
4.5~5.0 kgf m
.
(7.2~10.8 lbf ft)
.
Bolt : M6X1.0
1.0~1.5 kgf m
.
(32.5~36.2 lbf ft)
.
Plug
AUX SPOOL ASSY
TILT SPOOL ASSY
LIFT SPOOL ASSY
Cap
(7.2~10.8 lbf ft)
.
Bolt : M6X1.0
1.0~1.5 kgf m
.
Main relief valve
4.5~5.0 kgf m
.
(32.5~36.2 lbf ft)
.
4.5~5.0 kgf m
.
AUX SPOOL ASSY
Load check valve
(25.3~30 lbf ft)
.
3.5~4.0 kgf m
.
22B7HS22
Inlet section
Install the main relief valve assembly into the lower side cavity of the inlet section, as illustrated.
Torque to 4.5~5.0kgf
Â
m(32.5~36.2lbf
Â
ft).
Install the plug assembly in the tank port of the inlet section. Torque to 4.5~5.0kgf
Â
m
(32.5~36.2lbf
Â
ft)
L
L
ift section
The spool assembly should already consist of the lift spool, the return spring, one spring seat on
either end of the spring, the seal plate, a spool seal, and a dust wiper. All of these are assembled
on the end of the spool opposite the clevis.
Insert the clevis end of the spool into the right-hand side of the spool bore(the tallest end of the
housing). Place the spool cap over the spool and spring assembly and connect the cap to the
housing using two bolts. Torque both bolts alternatively until a torque of 1.0~1.5kgf
Â
m
(7.2~10.8lbf
Â
ft) is reached on both bolts.
Install the second spool seal and dust wiper over the clevis end of the spool and retain with a seal
plate and two bolts. Torque both bolts alternatively until a torque of 1.0~1.5kgf
Â
m(7.2~10.8lbf
Â
ft)
is reached on both bolts.
The load check assembly is inserted into the top center cavity. Torque to 3.5~4.0kgf
Â
m
(25.3~30lbf
Â
ft)
Install the lift lock check valve assembly in the remaining open cavity in the top of the housing.
Torque to 4.5~5.0kgf
Â
m(32.5~36.2lbf
Â
ft)
(
(
3)
Η
Θ
(
(
4)
Η
Θ
Ι
Κ
Λ
