Enerpac ECCE26, Instruction Sheet

16

NOTICE

A small amount of hydraulic oil leakage may 

occur when the diaphragm cover is removed in the next 

step. Be prepared to catch this oil in a pan or with a 

clean rag. Dispose of spilled oil in accordance with all 

applicable laws and regulations.
5. Using an adjustable face spanner wrench, loosen and 

remove the diaphragm cover.

6. Remove the spring, pusher disc, and diaphragm from 

the diaphragm opening. 

NOTICE

It is not necessary to remove the oil reservoir 

cap, as the oil will be drained and filled through the 

diaphragm opening.
7. Completely drain all old oil from the cutter through the 

diaphragm opening, turning it right-side up and using 

a suitable oil extraction system (used oil extraction 

pump) if necessary, so that no oil remains in the cutter 

reservoir. 

NOTICE

Dispose of all used oil in accordance with all 

applicable regulations and laws. 
8. After all oil is evacuated, position the cutter with the 

diaphragm opening facing up.

NOTICE

Use only new Enerpac HF oil in the following 

step. Use of other oils may damage the cutter and may 

invalidate the Enerpac product warranty.
9. Using the oil dispenser prepared in step 1, slowly add 

new Enerpac HF oil through the diaphragm opening 

until the diaphragm opening is nearly full. 

NOTICE:

  WARNING

To avoid serious personal injury, stay clear of cutting 

head and blades during the following procedures. 

Wear rubber gloves to prevent contact with oil. Wear 

eye and face protection to avoid injury due to 

splashing oil.

10.  Connect the cutter to the AC power supply.
11.  Cover the diaphragm opening with a rubber-gloved 

hand to help prevent oil splashing.

12. Prime the pump by pressing and releasing the 

trigger in short bursts. During this process, check 

the oil level in the diaphragm opening and add 

oil (as needed) to keep the reservoir filled. Failure 

to keep reservoir full may result in cavitation and 

pump failure. Pump is primed when piston starts 

extending.

NOTICE

During priming, the oil may become entrained 

with air and may develop a foamy appearance. This is 

normal.
13.  Continue pressing and releasing the trigger in short 

bursts as the piston extends. During this process, 

do not add oil, but verify that the pump has ample 

oil supply. Continue until piston is extended to 

approximately half stroke.

NOTICE

During the following steps, refer to Figure 8 for 

piston release lever details.

14. While covering the diaphragm opening with a 

rubber-gloved hand, retract the piston gently by 

moving the piston release lever to position 2. See 

Figure 8.

15.  Move the piston release lever back to position 1.
16.  Press and release the trigger in short bursts until the 

piston is extended as far as possible.

17.  Disconnect the cutter from the AC power supply 

to prevent accidental motor start-up during the 

following steps.

18. Add oil through the diaphragm opening until the 

diaphragm opening is nearly full.

19. Slowly install the diaphragm in the diaphragm 

opening. This should result in some oil leakage from 

around the diaphragm.

20. Install the pusher disc, diaphragm, spring, and 

diaphragm cover.

21. Move the piston release lever to position 2 (see 

Figure 8) to retract the piston.

22. Move the piston release lever to position 1 (see 

Figure 8) and tighten.

23.  Connect the cutter to the AC power supply.

NOTICE:

  WARNING

To avoid serious personal injury, stay clear of cutting 

head and blades during the following procedures.

24.  Start the cutter and cycle the piston through several 

advance and return strokes. Ensure that piston is 

fully retracted when done.

25.  Be sure cutter is positioned so that the oil reservoir 

cap is facing upwards. Do not operate cutter for 

several hours (preferably overnight) to allow any 

remaining air to separate from the oil.

26.  With the reservoir cap still facing upwards, press 

and release the trigger in short bursts until the 

piston is extended as far as possible.

27.  Disconnect the cutter from the AC power supply 

to prevent accidental motor start-up during the 

following steps.

28. Loosen and remove the oil reservoir cap. Check 

the oil level in the oil drain/fill hole. If oil level has 

dropped, add additional Enerpac HF oil until the oil 

level is up to the top of the hole.

29.  Install and securely tighten the oil reservoir cap.
30.  Using a clean rag, wipe the cutter housing, grip and 

motor so that surfaces are free of oil residue.

31.  Connect the cutter to the AC power supply. Cycle 

the piston several times to test for proper operation 

before placing the cutter back into service.

10.6  Cutter Blade Replacement

NOTICE:

  WARNING

• Always disconnect cutter from AC power supply 

before beginning blade replacement procedures. 

Failure to observe this precaution could result in