3
NOTE:
Flow restrictor is loose and held in place by plug.
NOTE:
Enerpac recommends installing a gauge in line to
monitor hydraulic system pressure.
2.
Seal connection with a
high-grade pipe thread
sealer, such as teflon
tape.
NOTE:
Use 1
1
⁄2
wraps of teflon
tape, leaving the first thread
bare to prevent tape from
shedding into the hydraulic system and causing damage. See
Figure 3.
3.
Tighten pipe connections securely, but DO NOT over-
tighten.
4.3 Connect the Air Supply
Recommended air inlet pressure is 60-100 psi [4,1-6,9 bar].
1.
Connect a 9 CFM [15 m
3
/h] (minimum) air supply
source to the
1
⁄
4
" [0,5 cm] NPTF pump air inlet swivel
connector
(B)
as shown in Figure 4. Use only
1
⁄4
" [0,5 cm]
hose or quick disconnect fittings. Larger, heavier fittings
are not recommended. Use a high-grade pipe thread
sealer to seal the connection.
2.
Tighten pipe connections securely, but DO NOT OVER-
TIGHTEN.
NOTE:
To promote long, trouble free pump operation, install
an Enerpac air filter
regulator in the air line.
4.4 Adjust Hydraulic Pressure
The hydraulic pressure output of your air pump is
controlled by the air pressure into the pump. Increasing the
air inlet pressure will increase hydraulic output pressure,
and decreasing air inlet pressure will decrease the
hydraulic output pressure.
WARNING:
NEVER remove swivel air connector
while air line is pressurized. Removing a pressurized
air line may lead to personal injury or equipment
damage.
5.0 OPERATION
1.
Check the oil level in the pump, and add oil if necessary.
2. Check to make sure all air and hydraulic connections
are secure before operating pump.
5.1 To Activate the Pump
Depress the ADVANCE button as shown in Figure 5 and
the air motor will be activated to pump hydraulic oil to the
system.
5.2 To Hold Load Pressure
The air motor will stop and hold load pressure when the
handle is in the free NEUTRAL position. See Figure 6.
5.3 To Release Load Pressure
To release load pressure or retract a cylinder, depress the
RELEASE handle as shown in Figure 7.
6.0 PRIMING THE PUMP
If pump does not operate properly, it may have lost its
prime. Follow the procedure below to prime your pump, if
necessary.
1.
Fill pump with Enerpac hydraulic oil, if necessary. See
filling instructions on page 2.
2.
Place pump on horizontal surface.
3.
Set air supply pressure to 30-40 psi [2,1 - 2,7 bar].
4.
Depress the RELEASE handle.
5.
Depress the ADVANCE button to activate pump.
Operate pump in RELEASE position momentarily
several times to allow oil to flow back into pump and fill
passage ways.
6.
To verify that pump is primed, operate as normal with
cylinder attached. If cylinder does not advance, repeat
step 5.
danger.eps
Figure 3
Figure 4
Figure 5
Figure 7
Figure 6
