Enerpac P-Series ULTIMA - Manual (Page 8)

8
9.0 MAINTENANCE
Use only Enerpac hydraulic oil with the pump to
promote long pump life and to protect your warranty.
Viton and EPR seal kits are available for some hand
pump models. Contact your Enerpac representative
for more information on these products and their
applications.
9.1 Adding Oil to the Pump
WARNING: Always add oil with cylinders
fully retracted (extended if pull cylinders)
or the system will contain more oil than the
reservoir can hold.
Check oil level regularly and add oil if needed. Refer
to the following steps:
1. Place pump in the horizontal position on a level
surface.
2. Remove oil fill plug from reservoir.
3. Check oil level. See Figure 16. If oil level is low,
add additional oil until oil level is up to the bottom
thread of the oil fill plug opening.
IMPORTANT: Do not overfill! Some air space must
be present in reservoir to allow proper operation. If
the reservoir contains too much oil, a vacuum will
form, preventing oil flow when pump is operated.
4. Reinstall oil fill plug after adding oil. Be sure that
plug is fully installed (not loose).
5. Remove air from system if necessary. See Section
6.0. Recheck oil level after removing air.
Oil Fill Plug
Fill Line
FILL TO
BOTTOM
OF THREADS
Figure 16, Reservoir Oil Level
WARNING: The oil fill plug contains an
integral pressure relief passage, a safety
feature that prevents over-pressurization
of the reservoir. Use only the oil fill plug supplied with
the pump or a genuine Enerpac replacement plug of
identical specifications.
CAUTION:. Never attempt to return more
oil to the reservoir than it is capable of
holding.
9.2 Changing the Oil
Drain all oil from reservoir and refill with clean
Enerpac oil every 12 months. If pump is used in dirty
environments, change the oil more frequently.
1. Remove oil fill plug from reservoir.
2. Tilt pump to drain out old oil.
IMPORTANT: Dispose of used oil in accordance with
all applicable laws and regulations.
3. Fill reservoir with new Enerpac oil. Refer to
Section 9.1 for additional information.
4. Reinstall oil fill plug.
9.3 Lubrication
To extend pump life and improve performance,
lubricate the three pump handle pins regularly, using
roller bearing grease. See Figure 17.
Pin 1
Pin 3
Pin 2
Figure 17, Lubrication Points
9.4 Keeping Oil Lines Clean
Always install dust caps when coupler halves are
disconnected. To help prevent failure of pump and
other components, use every precaution to guard
the system against entrance of dirt and other foreign
matter.
10.0 TROUBLESHOOTING GUIDE
The information in the troubleshooting guide (see
Table 3) is intended only as an aid to help diagnose
and correct selected problems that may occur.
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.
For repair service, contact your local Enerpac
Authorized Service Center. Only an Enerpac
Authorized Service Center should service the pump
or system components.