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If the lead screw assembly (24) shows signs of excessive wear, the
associated components will also need to be replaced. The screw press
assembly is available as a spare part.
Complete Disassembly
1. Remove the screw press assembly as described above.
2. Unscrew and remove valve stem (13), taking care not to lose spring (12) and nylon
washer (11).
3. Remove reservoir cover (10).
4. Unscrew locknut (9), and remove reservoir (8).
5. Unscrew body valve (6), taking care not to lose bonded seal (7) or o-ring (5).
6. Remove banjo bolts (1) together with banjo test ports (3), taking care not to lose
o-rings (2).
7. Disconnect the stand (15) from the bench. Remove screws (14). Tilt manifold/barrel
assembly downward and pass it out of the bottom of the stand.
8. Loosen the locknut (18) approximately ½ turn to remove the barrel (19). Unscrew the
barrel (19) from the manifold (16).
9. Verify the barrel seal (17) is correctly located in the counter-bore in the front of the
barrel before re-fitting barrel. Screw the barrel fully into the test station and secure
with the locknut.
10. Inspect all seals for wear or damage. Replace as necessary.
If the rambler shows signs of wear, the main bore will be worn also. When
the bore is worn or scratched, it will not seal correctly and may leak under
pressure.
Reassembly is the reverse of the above. Ensure that all seals and sealing surfaces are
clean and undamaged.
Full System Purge of Air
When the system is free of air and closed, rotate the pump one-half turn to generate
system line pressure.
Open only one port at a time to prevent loss of oil. An Oil loss can create a flow path
through the system. If multiple ports must be opened at the same time, use the Isolation
Valves to isolate the system parts to prevent flow paths through the system.
Use these basic steps to purge air from the hydraulic system:
1. Remove all pressure from the system.
2. Verify that the Pump and Reservoir are connected to the High Pressure Port.
3. Remove all test instruments.
4. Set the Oil Isolation Valve and Gas Isolation Valve to Equalize Mode.
5. Close the Low Side Gas Interface Valve and High Side Gas Interface Valve
located on the side of the RUSKA 2482.
Note
Note
Differential Pressure Piston Gauge
Maintenance
33
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