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Rev A
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6.2.3 Changing the hydraulic fluid
Change the hydraulic fluid at least once per year. If the pump is used in a dirty environment, change the fluid
more often.
1. Remove the fill cap (Figure 7).
2. Tilt the pump to drain the used fluid into a suitable container.
3. Fill the reservoir with Enerpac LX101 hydraulic fluid to the line shown on the pump. Do not overfill.
NOTE
An unvented pump must have air in the reservoir to function properly. A full reservoir creates a vacuum, preventing fluid from
flowing out of the pump.
4. Remove air from the system if needed (see section 6.1).
5. Verify that the fluid level is still correct.
6. Reinstall the fill cap.
7. Dispose of the used fluid as required by local environmental regulations.
6.3 Lubrication
To extend pump life and maintain performance, lubricate the pump on a regular basis (see Table 3). Lubricate
the cross pin, pump piston, and beam pin (Figure 8) with SAE 20 motor oil or a multi-purpose grease. Wipe
excess oil from the pump.
Table 3: Lubrication schedule
When tool is used
When to lubricate
In daily production
Daily
Daily (occasional)
Weekly
Weekly
Monthly
Figure 8: Lubrication sites
1
Cross pin
3
Shaft seal
2
Pump piston
4
Beam pin
