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6.2 Hydraulic fluid
6.2.1 Keeping the fluid lines clean
Screw on dust caps whenever the coupler halves are disconnected. screw on dust caps. Take all necessary
precautions to keep dirt out of the pump. Any foreign matter inside the unit can cause pump, cylinder, or valve
failure.
6.2.2 Adding hydraulic fluid
Check the hydraulic fluid level before each use.
DANGER
Do not add hydraulic fluid unless the cylinder is fully retracted (extended if using a pull cylinder). Failure to do so forces more
fluid into the reservoir than it can hold. This can rupture the casing, causing injury and equipment damage.
1. Remove the fill cap (Figure 7).
2. 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.
3. Remove air from the system if needed (see section 6.1).
4. Verify that the fluid level is still correct.
5. Reinstall the fill cap.
Figure 7: Adding hydraulic fluid
1
Fill cap
2
Fill line
