Enerpac EFBE5017, Instruction Sheet

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4. To prevent contamination, remove any built-up dust 

and dirt from the oil reservoir cap and surrounding area.

NOTICE

A small amount of hydraulic oil may leak from 

the drain/fill hole when cap is loosened 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. Slowly loosen the oil reservoir cap while watching for 

oil flow:

•  If oil starts flowing from the oil drain/fill hole as the 

cap is loosened, the reservoir is full. Tighten the 

cap immediately. To avoid excessive oil spillage, 

do not continue loosening the cap if oil flow 

occurs. Skip steps 6 through 8 and go on to step 9.

•  If no oil flow occurs when the cap is loosened, 

fully loosen and remove the cap. Then, check 

oil level and add oil (if needed) as described in  

steps 6 through 8.

6. Check the oil level in the drain/fill hole. Oil level will be 

up to the top of the hole when reservoir is full.

7. If oil level is low, slowly add new Enerpac HF oil 

through the oil drain/fill hole, until the oil level is up to 

the top of the hole.

8. Remove any residue or metal particles from the oil 

reservoir cap (it is magnetic).

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

motor so that these surfaces are free of oil residue.

11. Connect cutter to AC power supply. Cycle the 

piston several times to test for proper operation 

before placing the cutter back into service.

10.5.3  Changing the Oil

NOTICE

The oil change procedure is very detailed and 

will take a considerable amount of time. It should only 

be performed by a trained technician at an Enerpac 

authorized service center. Failure to properly perform 

the procedure may result in incomplete filling of the 

cutter oil reservoir, which could lead to cavitation, air 

entrainment, reduced performance, and pump damage.
Change the oil in the cutter reservoir as described in the 

following steps. Refer to Figures 8A through 8E:
1. Fill a clean oil dispenser with new Enerpac HF oil. Put 

the dispenser aside for later use.

2. Procure a thick, soft metal bar (about 1/4 inch 

[6.4 mm] minimum thickness). Put the bar aside for 

later use.

NOTICE

The bar selected should be easy to cut, but not 

brittle. The bar material must be soft enough so that the 

bar will not break into two pieces before it is fully cut. 

Later in this procedure, the bar will be partially cut so 

that it becomes lodged in between the jaws of the cutter 

without being cut through completely, as the piston is 

extended to slightly less than maximum travel.

10.5.1  Hydraulic System Maintenance Precautions

NOTICE:

  WARNING

Always disconnect cutter from AC power supply 

before performing hydraulic system maintenance. 

Failure to observe this precaution could result in 

accidental startup while maintenance procedures 

are being performed. Serious personal injury and 

damage to cutter may result.
Wait for cutter to cool before performing hydraulic 

system maintenance. Hot oil can cause burns.
Be sure that oil reservoir cap is securely tightened 

after checking oil level or changing the oil. Leaking 

oil can cause short circuits, fire and explosions.
Additional Precautions:

•  Do not check oil level or change the oil in dusty areas.
•  Be sure that all tools (wrench, screwdriver, etc.) used 

to perform maintenance procedures are clean.

•  When adding oil and performing oil changes, take every 

precaution to prevent impurities from contaminating 

the oil or entering the cutter. Impurities can cause 

permanent damage to the hydraulic components.

•  The hydraulic reservoir contains a rubber diaphragm 

that slightly pressurizes the oil. Some oil spillage may 

occur when checking the oil level or when changing 

the oil. Wear and/or use appropriate personal 

protective equipment (PPE) to prevent exposure to 

hydraulic oil.

•  Use only new Enerpac HF hydraulic oil poured from a 

clean container. Use of other oil brands and/or used 

oil may damage the cutter and may void the Enerpac 

product warranty.

10.5.2  Checking Oil Level and Adding Oil

NOTICE

The reservoir contains a flexible rubber 

diaphragm that slightly pressurizes the oil. To help prevent 

excessive oil leakage when the reservoir cap is removed, 

be certain that the piston is advanced until there is a gap 

of about 1/8 inch [3-4 mm] between the fixed and moving 

blades (as described in step 1) before loosening the cap.
The gap between the blades should not be less than  

1/8 inch [3-4 mm]. A smaller gap may result in the 

piston retracting unexpectedly while the oil level is being 

checked.
Refer to Figures 8A through 8E during the following steps:
1. Operate the cutter and advance the piston until 

there is a 1/8-inch [3-4 mm] gap between the fixed 

and moving blades (until just before the piston 

automatically returns).

2. Disconnect the cutter from the AC power supply to 

prevent accidental motor startup during the following 

steps.

3. Place the cutter in the horizontal position, on a stable 

and level work surface, with the oil reservoir cap 

facing upwards. Place a pan or suitable container 

under the cutter to catch any spilled oil.