Manifold, Section 1 of Hydraulic Plate
2000 SRM 1233
VALVES AND PRESSURE SWITCHES
WARNING
Cleaning solvents can be flammable and toxic.
Cleaning solvents can also cause skin irrita-
tion. When using cleaning solvents, always fol-
low the solvent manufacturer’s recommended
safety precautions.
NOTE:
Only use plugs that have been cleaned in sol-
vent.
NOTE:
In the event that seals are missing, check
manifold for missing seals and remove.
NOTE:
Cartridge valves and switches are not field-
serviceable with exception of external seals and elec-
trical solenoids. In event of a defective component,
completely replace valve of switch.
NOTE:
Check manifold for cracks. If there are cracks
in manifold, the manifold should be replaced.
The valves and pressure switch seals are serviceable
parts of the manifold. Use the following procedures
for repair:
1.
Unscrew the cartridge valve of switch from man-
ifold.
2.
Check that all seals are attached to cartridge
valve or switch.
3.
Install a temporary plug in place of cartridge
valve or switch.
4.
Clean cartridge valve or switch in solvent and
inspect component for damage.
5.
Install new seals. For correct order of backup
rings and O-rings. See Figure 4, Figure 5, Fig-
ure 6, Figure 7, Figure 8, and Figure 9.
6.
Lubricate component/valve with clean hydraulic
oil before installation.
7.
Remove temporary plug.
8.
Install and torque component/valve or switch to
value listed in Torque Values.
1.
O-RING
2.
BACKUP RING
3.
BACKUP RING
4.
O-RING
5.
O-RING
Figure 4. Reducing Valve Cartridge (1.12/1.13)
1.
O-RING
2.
BACKUP RING
3.
BACKUP RING
4.
BACKUP RING
5.
BACKUP RING
6.
O-RING
7.
O-RING
Figure 5. Charger Valve Cartridge (1.10)
8
