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Repair
Repair
Seal Replacement
NOTE: For most seal replacement procedures, the
pump should be completely removed from service and
clamped in a vise. For only replacing the reservoir
and/or reservoir seals, it is not necessary to remove the
pump from the service location. The following instruc-
tions cover the complete disassembly of the pump. The
pump repair may not require total pump disassembly.
Disassembly
1. Turn off the air supply and disconnect the air lines
to the pump.
2. Disconnect electrical connections to the lubrication
controller.
3. Follow the Pressure Relief Procedure, page 11.
4. Disconnect the supply line (G, page 6) from the
pump outlet (E, page 6).
5. Use a hex wrench to slowly loosen and remove the
drain plug (40) from the pump base and drain oil
from the pump (F
. 11).
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NOTE: Removing the plug slowly prevents splash-
ing while the oil drains from the reservoir.
F
. 11
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14
6. Collect the drained oil in a pail or waste container.
Dispose of oil according to all regulations for proper
disposal.
7. Replace drain plug (40).
8. Remove the mounting bolts (F
the pump from service.
F
. 12
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9. Clamp the air motor cylinder (3) in a vise as shown
in F
. 13. Use a soft-jaw vise or place a rag in the
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vise jaws to protect the surface of the pump base.
40
F
. 13
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. 12) and remove
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3A4033J
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