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E. "DWELL B" Menu
Screen 24
SET
DWELL B
(See Screen 24.) This screen allows the operator to set the DWELL B
time in seconds. After the specified DWELL B time (0 to 60 seconds) has
elapsed, the pump will de-energize the motor / electric valve.
The DWELL B value is adjusted by pressing the Up-Arrow and Down-
Arrow buttons. The message "Use A" will appear first. Choosing this
selection will set the DWELL B time to the same value as DWELL A. If
desired, DWELL B can be adjusted to a different setting by pressing the
Up or Down Arrow buttons again.
If the DWELL B time is set to zero (0) seconds, the pump will shut-off
immediately when the PRESR B limit is reached.
F. "Calibration" Menu
Screen 25
SET
CAL PT A
0
(See Screen 25.) This screen allows the operator to adjust the pressure
value shown on the LCD to match a master gauge.
To access this menu, go to "UNITS" menu (See Screen 3). Then, press
and hold the Motor ON/OFF button in for 7 seconds. ENTRY CODE will
appear on the LCD screen. Then, press and hold both the Up-Arrow
and Down-Arrow buttons simultaneously for 7 additional seconds.
See Table 3, "Z-Class Pressure Transducer Calibration", for adjustment
steps.
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 1 and 4). Always be sure cylinders are fully
retracted before adding oil to the reservoir.
60
PSI
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 ACCESSORY INSTALLATION
The pressure transducer, heat exchanger, level / temp switch,
pendant / foot switch, and valve solenoids (A) and (B) are
supplied with connectors that plug into the proper plug-ins
found on the electrical power board (Figure 10).
For further information and instructions on accessories see the
following web links:
Pressure Transducer
http://www.wika.de/pdf/betriebsanleitungen/ba_m_1x.pdf
Level/Temp Switch
http://www.barksdale.com
Heat Exchanger
http://nmbtc.com
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