11
Figure 13 - Drain Plug
Drain Plug
9. Reconnect hoses and test pump operation without load
before placing the pump back into service. Cycle the
hydraulic cylinders (or other hydraulic actuators) until all air
is removed and operation is smooth.
8.3 Suction Strainer Replacement
Two suction strainer fi lters are located inside the pump oil
reservoir. Replace these strainers if there is a noticeable drop in
oil fl ow or if it is suspected that the oil is dirty or contaminated.
Refer to the following steps:
1. Fully relieve pressure in the pneumatic and hydraulic
circuits. Disconnect hoses. Remove pump shroud. Refer to
maintenance preparation procedures in Section 8.1 of this
manual. Also refer to pressure relief procedures in Section
6.3.
2. Place the pump on a workbench or other substantial work
surface.
3. Fully drain all oil from the hydraulic reservoir. Refer to the
steps in Section 8.2.
NOTICE
To ensure cleanliness, the hydraulic oil MUST be
changed whenever the suction strainers are replaced.
4. Check that the pump hydraulic pressure gauge indicates
zero (0) psi/bar. Hydraulic pressure must be completely
relieved before loosening hydraulic fi ttings in the following
step.
5.
Loosen the connectors located on each end of the hydraulic
manifold. Refer to Figure 14.
Figure 14 - Connectors
(Located on each end of manifold)
