Enerpac PowaPak ZA4208TX-QR0P, Instruction Sheet

L4463 

(

rev

. 

c

)

 13

+

-

2

1

Key:

  1.  Adjustment Knob
  2. Locknut

Figure 10: User-Adjustable Pressure Relief Valve 

(Torque Adjustment)

3.  While continuing to press and hold the green ON/

ADV button:

•  Slowly turn relief valve adjustment knob clockwise 

to increase pressure to the desired amount.

•  Slowly turn relief valve adjustment knob counter 

clockwise to decrease pressure.

NOTICE

The green ON/ADV button must be released and 

then pressed again to verify the pressure setting when the 

setting is being decreased.
4.  Repeat steps 2 and 3 as required until the correct 

hydraulic pressure setting is obtained. Then, tighten 

the relief valve locknut to maintain the setting.

5.  Start and stop the pump several times to check the 

setting.

8.6  Disconnecting Hydraulic Hoses

Disconnect hydraulic hoses after use as described in the 

following steps:
1.  Verify that pump hydraulic pressure gauge indicates 

zero (0) psi/bar. If any pressure is indicated, relieve 

pressure as described in Section 8.3 of this manual.

2.  Shut off the pump compressed air supply. Be certain 

that the air filter/regulator pressure gauge indicates 

zero (0) psi/bar.

3.  At pump hydraulic ports “A” and “B”, loosen the 

threaded collars on the female couplers. Disconnect 

hoses from pump.

4.  To prevent contamination, install dust covers over 

pump and hose couplers.

9.0  MAINTENANCE

9.1  Oil Change and Hydraulic Reservoir

Change the oil in the hydraulic reservoir after every 

250 hours of operation. If pump is operated in very dusty 

areas or at high temperatures, oil changes should be 

performed more frequently.
Perform an oil change as described in the following steps. 

See Figure 11.
1.  Stop the pump and relieve hydraulic pressure. 

Be sure that hydraulic pressure gauge indicates 

zero (0) psi/bar.

2.  Shut off compressed air supply. Be certain that 

the air filter/regulator pressure gauge indicates 

zero (0) psi/bar.

3.  Disconnect air supply hose from air inlet connection 

on pump.

4.  Place the pump on a workbench or other suitable 

surface. Place a pan or container under the oil 

drain plug. Oil reservoir capacity is approximately  

1.75 gallons [6.6 litres].

5.  Slowly loosen the oil drain plug and remove it. Allow 

all used oil to drain from the reservoir into the pan or 

container.

3

2

1

Key:

  1.  Oil Fill Plug
  2.  Air Breather 

(See Figure 2) 

  3.  Oil Drain Plug

Figure 11: Reservoir Oil Drain, Fill and Air Breather Locations 

(hydraulic control valve removed to show details)