12
Table 8 - Hydraulic Oil Specifi cations - ISO 32
ISO Grade
32
Viscosity Index
100 min
Viscosity at 210
°
F
42-45 S.U.S.
Viscosity at 100
°
F
150-165 S.U.S.
Viscosity at 0
°
F
<12000 S.U.S.
API Gravity
31.0-33.0
Flash, C.O.C.
°
F
400
Pour Point,
°
F
-35
Figure 11, Oil Level - Hydraulic Reservoir
(handle assembly removed to show detail)
FULL = 1 inch [25 mm]
below top of reservoir
Oil Fill Plug
Oil Level
(FULL)
NOTICE
• Failure to use the proper oil may result in damage to jack
hydraulic components and will void the product warranty. Use
of Enerpac HF oil is strongly recommended.
• Be sure that the oil is clean. The oil cleanliness should be
maintained to a maximum level of 19/16/13 per the ISO4406
standard. If the oil has a milky, cloudy or dark appearance, it
should be changed immediately as described in Section 7.4.
7.4 Changing the Oil
Change the oil in the hydraulic reservoir every 12 months or 500
hours of use. See Figure 12.
The following conditions will require more frequent oil changes:
• Rigorous duty, where oil temperature may reach 150 °F
[60 °C].
• A high humidity environment and/or extreme changes in
temperature that can result in condensation inside the reservoir.
• Dirty or dusty environments that may contaminate the oil.
Change the oil as described in the following steps:
1. Be sure that cylinder is fully retracted.
2. Remove the jack rear access cover. Refer to Section 7.1.
3. Completely relieve any trapped pressure in the jack hydraulic
and pneumatic systems. Disconnect the air supply hose
from the air shut-o
ff
valve. Follow procedure in Section 7.2.
NOTICE
The hydraulic reservoir holds approximately 5 gallons
[18,9 liter] of oil when fi lled to the proper level with cylinder fully
retracted and air motor o
ff
. Dispose of used oil in accordance
with all applicable laws and regulations.
4. Loosen and remove oil drain plug at bottom of reservoir.
Allow used oil to drain into a suitable container. It may be
necessary to tip the jack back slightly to completely drain all
oil and any debris from the bottom of the reservoir.
5. Clean and reinstall oil drain plug.
6. Remove, clean and reinstall the reservoir air breather.
Replace the air breather if clogged or damaged.
7. Using a strap wrench, unscrew and remove the old oil fi lter.
Catch any spilled oil in a suitable container. Dispose of spilled
oil in accordance with all applicable laws and regulations.
NOTICE
Use only a new 10 micron oil fi lter of the proper
specifi cations (Enerpac Part No. 69670E or equivalent).
8. Before installation, lubricate the new oil fi lter's rubber seal
with a small amount of oil. Tighten fi lter hand tight only (do
not use tools).
Key:
2
1
3
1. Air Breather
2. Oil Fill Plug
3. Oil Drain Plug
4. Oil Filter
Figure 12, Oil Change
(handle assembly removed to show detail)
4
9. Remove the oil fi ll plug and add Enerpac HF hydraulic oil as
required. Use a funnel to avoid spillage. Oil level should be
approximately 1 inch [25 mm] below top of reservoir, with
cylinder fully retracted and air motor turned o
ff
. See Figure
11 for oil level diagram.
NOTICE
• Reservoir is vented. To prevent oil leakage through the air
breather, do not fi ll reservoir completely to the top.
• To help avoid accidental overfi lling of reservoir, always make
sure that cylinder is fully retracted before checking oil level or
adding additional oil.
• If Enerpac HF is not available at the worksite, use an equivalent
hydraulic oil that meets the specifi cations shown in Table 8.
