Enerpac PUJ-1201B, Инструкция, Страница: 6 / 44

Adjusting the Relief Valve Setting
1. Install a gauge as directed in the installation instructions on page 3.
2. Install a plug in the valve outlet port.
3. Remove the hex cap (H) covering the relief valve
adjustment screw.
4. Using an allen wrench, turn the adjustment screw
counterclockwise one full turn.
5. Turn the pump "ON" and run the pump motor,
watching the gauge reading for the maximum
pressure. Stop the pump.
6. Continue to adjust the setting until the desired
pressure is attained.
7. Check the setting by running the pump several times.
If the gauge reading is the same each time, the valve
setting is stable. Replace the hex cap to cover the
adjusting screw.
NOTE: To get the most accurate relief valve setting,
start at a lower pressure and adjust up to
the desired relief valve setting.
a
WARNING
To avoid equipment damage and personal injury, do not attempt to exceed
10,000 psi (700 bar) maximum operating pressure.
MAINTENANCE
Checking the Oil Level
Check reservoir hydraulic oil level every 40 hours of operation. Add oil when necessary to bring
the level to
1
/
2
" (1 cm) below the fill opening. Use only Enerpac hydraulic oil. The use of other
oils or fluids may damage your system, and will void your Enerpac warranty.
Changing the Oil (Figure 9)
Completely drain the reservoir after every 100 hours of operation. Refill with new hydraulic oil.
If pump is operated in very dusty areas or at high temperatures, drain and refill more frequently.
1. To drain the reservoir, remove the vent/fill plug (F) from the top right hand corner of the
reservoir.
2. Tip the pump until all old oil is drained.
3. Refill with new oil through the same opening. Reservoir capacity is .75 gal. (2,8 l) or 1.5 gal.
(5,7 l) depending on model.
4. Replace fill plug (F).
Cleaning the Reservoir
The pump reservoir can be removed for cleaning. If the pump is constantly used in an extremely
dusty environment, the reservoir should be cleaned once a year.
1. Drain the reservoir as described in steps 1 and 2 in "Changing the Oil".
2. Remove the six screws securing the shroud to the reservoir. Lift the shroud off the reservoir.
A foam cushion wraps around the motor to keep electrical wires away from the motor. Use
caution to avoid damaging or pulling wire connections off the terminals.
H
Figure 8
F
Figure 9
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