Check Oil Level - Enerpac ZG Serie Hoja De Instrucciones

c. Lower the throttle down to the detent position for
maximum performance. The throttle may be lowered
below the detent for idle. (See Figure 6.)
Throttle
Sight Guage
5.1 Manual Valve Operation
VM32 (See Fig. 7)
1. Advance
2. Retract (Neutral)
VM33, VM33L, VM43, VM43L (See Fig. 8)
1. Advance
2. Retract
3. Neutral
5.2 Relief Valve Adjustment
Z-Class pumps are equipped with one user adjustable relief
valve (see Figure 9.) It can be adjusted as follows:
1. Install a gauge on the pump.
2. Start the pump to allow the oil to warm.
Key
Oil Level
Figure 6
2 2
TANK TANK PRESSURE PRESSURE
Figure 7 Figure 7
3 - In Use 3 - In Use
B B A A
2 2
3 3
Figure 8 Figure 8
3. Loosen the set screw locking nut.
4. Shift the control valve and build pressure in the system.
Using an Allen wrench, turn the set screw counter-clockwise
to decrease pressure and clockwise to increase pressure.
NOTE: To get an accurate setting, decrease the pressure to
a point below the fi nal setting and then slowly increase the
pressure until it reaches the fi nal setting.
5. Tighten the locking nut when the desired pressure is set.
6. Shift the control valve to the neutral position, allowing the
system pressure to return to 0 psi.
7. Recheck the fi nal pressure setting by shifting the control
valve and pressurizing the system.
6.0 MAINTENANCE
Frequently inspect all system components for leaks or damage.
Repair or replace damaged components.
1 1

6.1 Check Oil Level

Check the oil level of the pump prior to start-up, and add oil, if
necessary, by removing the fi ll port cap. Always be sure cylinders
are fully retracted before adding fl uid to the reservoir. See Figure 2.
6.2 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 1 1. Unscrew the 13 bolts holding the coverplate to the reservoir
and lift the pump unit out of the reservoir. Be careful not to
damage the fi lter screen.
2. Pour all oil out of the reservoir.
3. Thoroughly clean the reservoir and reservoir magnet with a
suitable cleaning agent.
4. Remove the pick-up fi lter 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
4
Relief valve body (DO NOT TURN relief
valve body.)
B
Set screw
Locknut
Figure 9
A