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60 - 6
Shut off Valve 2
Dismantling the Shut off Valve 2
1
Loosen the plug
29
with a spanner.
2
Remove the plug
29
and the ‘O’ ring
42
.
3
Loosen the plug
29
(spool head side) with a hex bar
spanner.
4
Remove the plug
29
and the ‘O’ ring
42
.
5
Remove the spring
7
and spool
16
.
Cleaning / Inspection
1
Clean the dismantled parts with a coating of clean oil.
2
Dry with compressed air. Place each part on a clean
sheet of paper or vinyl for inspection.
3
Verify that all sliding parts move easily.
4
Replace the springs if they are damaged, deformed or
worn.
5
Replace all used ‘O’ rings with new before assembly.
6
Check that there is no foreign matter in any passages or
grooves.
Assembling the Shut off Valve 2
1
Install the ‘O’ ring
42
onto the plug
29
.
2
Install the plug
29
to the main assembling surface of the
body
15
.
Torque tighten to 6.86 Nm (5 lbf ft).
3
Install the spool
16
and the spring
7
into the body
15.
4
Install the plug 29 into the body 15.
Torque tighten to 9.8 Nm (7.23 lbf ft).
Pressure Reducing Valve
Dismantling the Pressure Reducing Valve
1
Loosen the plug
31
with a spanner.
2
Remove the plug
31
and the ‘O’ ring
44
.
3
Remove the spring
21
,the shim
1
and spool
13
.
Cleaning / Inspection
1
Clean the dismantled parts with a coating of clean oil.
2
Dry with compressed air. Place each part on a clean
sheet of paper or vinyl for inspection.
3
Verify that all sliding parts move easily.
4
Replace the springs if they are damaged, deformed or
worn.
5
Replace all used ‘O’ rings with new before assembly.
6
Check that there is no foreign matter in any passages or
grooves.
Assembling the Pressure Reducing Valve
1
Install the o-ring
44
onto the plug
31
.
2
Install the spool
13,
the shim
1
and the spring
21
into
the body
15.
4
Install the plug 31 into the body 15.
Torque tighten to 48 Nm (35.4 lbf ft).
Shuttle Valve
Dismantling the Shuttle Valve
1
Loosen the seat
2
with a spanner.
2
Remove the shim
2
and the steel ball
38
.
Cleaning / Inspection
1
Clean the dismantled parts with a coating of clean oil.
2
Dry with compressed air. Place each part on a clean
sheet of paper or vinyl for inspection.
3
Verify that all sliding parts move easily.
4
Check that there is no foreign matter in any passages or
grooves.
Assembling the Shuttle Valve
1
Place the steel ball
35
to the seat section of the seat
2
and check the bearing.
2
Insert the steel ball
35
into the body, insert the bearing
tool and check the bearing. Dispose of the used steel
ball used for bearing check.
3
Insert a new steel ball into the body
15
.
4
Apply Loctite 262 to the seat screw section 2 and install
it to the body
15
.
Torque tighten to 147 Nm (108 lbf ft).
Section E
Hydraulics
9803/6020
Section E
60 - 6
Issue 1
Multiple Valves
Summary of Contents for JS70
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