Check Oil Level - Enerpac ZW3 Serie Hoja De Instrucciones

7.0 MAINTENANCE
Frequently inspect all system components for leaks or damage.
Repair or replace damaged components. Electrical components,
for example, the power-cord, may only be repaired or replaced by
a qualified electrician, adhering to all applicable local and national
codes.

7.1 Check Oil Level

Check the pump oil level prior to start-up. If oil level is low,
remove the SAE #10 plug from the fill pipe extension and add oil
as needed (see figures 2 and 4). Always be sure cylinders are fully
retracted before adding oil to the reservoir.
7.2 Change Oil and Clean Reservoir
Enerpac HF oil is a crisp blue color. Frequently check oil condition
for contamination by comparing pump oil to new Enerpac oil. As
a general rule, completely drain and clean the reservoir every 250
hours, or more frequently if used in dirty environments.
Note: This procedure requires that you remove the pump from
the reservoir. Work on a clean bench and dispose of used oil
according to local codes.
1. Remove the drain plug and drain all oil from the reservoir.
Clean and reinstall the drain plug.
2. Unscrew the 13 bolts holding the cover plate to the reservoir
and lift the pump unit out of the reservoir. Be careful not to
damage the filter screen.
3. Thoroughly clean the reservoir and reservoir magnet (if
equipped) with a suitable cleaning agent.
4. Remove the pick-up filter screen for cleaning. (Do not pull
on the screen or the bottom of the intake to avoid possible
damage.) Clean the screen with solvent and a soft brush.
Reinstall.
5. Reassemble the pump and reservoir, installing a new reservoir
gasket.
6. Fill the reservoir with clean Enerpac hydraulic oil. The
reservoir is full when oil level is as shown in Figure 4.
7.3 Changing the Filter Element (optional)
A return line filter may be ordered as an accessory to the pump.
The filter element should be replaced every 250 hours, or more
frequently in dirty environments. The filter manifold is equipped with
a 25 psi (1.7 bar) bypass to prevent over pressure rupture if filter
plugging occurs. Filter element replacement part number is PF25.
8.0 TROUBLESHOOTING AND ADDITIONAL
REFERENCE INFORMATION
Refer to the following tables as needed:
• Table 1 (page 11) contains the pump troubleshooting guide.
• Table 2 (pages 12-13) contains a quick reference chart (QRC)
that describes the operation of the LCD control panel.
• Table 3 (page 14) contains additional information about pump
automatic operation and functions.
• Table 4 (page 14) contains detailed pump electrical current
draw information.
IMPORTANT: Only qualified hydraulic technicians should service
the pump or system components. A system failure may or may
not be the result of a pump malfunction. To determine the cause
of the problem, the complete system must be included in any
diagnostic procedure.
Note: The troubleshooting guide included in Table 1 is provided
as an aid to help diagnose and correct various possible pump
malfunctions and is intended for use only by qualified hydraulic
service personnel. For repair service, contact your nearest
Authorized Enerpac Service Center.
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