Enerpac ECCE32, Instruction Sheet

16

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 hydraulic reservoir as 

described in the following steps. Refer to Figures 13A 

through 13E and Figure 14:
1. Before beginning this procedure, purchase a new 

ECCE32 seal kit from your Enerpac authorized 

service center or distributor. Some of the seals in this 

kit will be used later in this procedure. Refer to the 

cutter repair parts sheet for a description of seal kit 

items.

2. Fill a clean oil dispenser with new Enerpac HF oil. Put 

the dispenser aside for later use.

3. Operate the cutter and extend the piston all the way 

forward.

4. Disconnect the cutter from the AC power supply to 

prevent accidental motor start-up during the following 

steps.

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

and level work surface, with the oil reservoir cap and 

diaphragm cover pointing upwards. Place a pan or 

suitable container under the cutter to catch any 

spilled oil.

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

and dirt from the oil reservoir cap, diaphragm cover 

and surrounding area.

NOTICE

A small amount of hydraulic oil leakage may 

occur when the diaphragm cover and reservoir cap are 

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.
7. Remove the oil reservoir cap and, using an adjustable 

face spanner wrench, loosen and remove the 

diaphragm cover.

8. Remove the diaphragm from the diaphragm opening. 
9. Completely drain all old oil from the cutter, turning 

it upside down and using a suitable oil extraction 

system (used oil extraction pump) if necessary, so 

that no oil remains in the cutter hydraulic reservoir. 

NOTICE

Dispose of all used oil in accordance with all 

applicable regulations and laws.
10.  After all oil is evacuated, remove the three screws 

for the standoff bracket and remove the standoff 

bracket from the bottom of the cutter. See Figure 14.

11.  Remove the directional control valve by removing 

the four screws retaining it.

1

2

Figure 14, Standoff Bracket (1) and Directional 

Control Valve Screws (2)

12.  Position the cutter with the control valve oil holes 

pointing straight down, and allow the remaining oil 

to drain for 30 to 60 minutes. Toward the end of this 

time, the end of the cylinder opposite the oil holes 

can be elevated slightly to aid in the draining.

13. Reinstall the directional control valve, using the 

new O-Ring seals from the ECCE32 seal kit (refer to  

step 1 of this procedure).

14.  Install the standoff bracket using the three screws. 

Torque to 18 ft-lbs [25 Nm].

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.
15.  Using the oil dispenser prepared in step 1, slowly 

add new Enerpac HF oil through the oil drain/fill hole 

and diaphragm opening until oil level is up to the top 

of the drain/fill hole. 

16.  Install and securely tighten the oil reservoir cap.

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.

NOTICE

During the following steps, refer to Figure 5 for 

directional lever positions.
17.  Connect the cutter to the AC power supply.
18.  Move the directional lever to position 2 (retract).
19.  Cover the diaphragm opening with a rubber-gloved 

hand to help prevent oil splashing.

20. 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.