Enerpac Pow’r-Riser PR Serie Hoja De Instrucciones página 7

Jack Model
1 inch
[25 mm]
PRAMA06014L
PRU11
PRAMA06027L
PRU11
PRAMA10016L PRU11
PRAMA10027L PRU11
PRASA10016L PRU11
PRASA10027L PRU11
PRASA15016L PRU151
PRASA15027L PRU151
PRASA20016L PRU201
PRASA20027L PRU201
5. Slowly lower the cylinder rod until the weight of the load
is supported by the U-Rings. Refer to the information in
Section 5.3 for jack operating instructions.
IMPORTANT: Follow all applicable work rules and regulations
in eff ect at your facility or worksite. The use of auxiliary stands,
blocking or other additional load supports may be required even
when U-Rings are installed.
Steel U-Ring
(top)
Locator (on each
U-Ring and at
top of cylinder
housing)
Steel U-Ring
(bottom)
Load
Cap
Load
Support
Ring
Assembled View
Figure 5, U-Ring Stacking Arrangement (typical)
Table 7 - U-Ring Information
U-Ring Size and Model Number
3 inch 4-1/2 inch 5-1/2 inch
[76 mm] [114 mm] [140 mm]
PRU13 PRU14 -
PRU13 PRU14 -
PRU13 PRU14 -
PRU13 PRU14 -
PRU13 PRU14 -
PRU13 PRU14 -
PRU153 - PRU155
PRU153 - PRU155
PRU203 - PRU205
PRU203 - PRU205
Aluminum U-Rings
Recess of U-Ring
U-Ring
Set
10 inch
Model
[254 mm]
Number
- PRUS126 PRU11
PRU110 PRUS137 PRU11
- PRUS126 PRU11
PRU110 PRUS137 PRU11
- PRUS126 PRU11
PRU110 PRUS137 PRU11
- PRUS1526 PRU151
PRU1510 PRUS1537 PRU151
- PRUS2026 PRU201
- PRUS2037 PRU201
6.0 MAINTENANCE
6.1 Maintain Oil Level in Hydraulic Reservoir
Check the hydraulic oil level every 30 days. Oil level should be
approximately 1 inch [25 mm] below top of reservoir, with cylinder
fully retracted and motor off .
If oil level is low, add Enerpac HF hydraulic oil as required. If
Enerpac HF is not available at the work site, use an equivalent
hydraulic oil that meets the specifi cations shown in Table 8.
Table 8 - Oil Specifi cations
ISO Grade
Viscosity Index
Viscosity at 210 °F
Viscosity at 100 °F
Viscosity at 0 °F
API Gravity
Flash, C.O.C. °F
Pour Point, °F
Paraffi nic Base Color
CAUTION: 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.
IMPORTANT: Be sure that the oil is clean. If the oil has a milky,
cloudy or dark appearance, it should be changed immediately as
described in Section 6.2.
6.2 Changing the Oil (See Figure 6)
Change the oil at least every 12 months.
Note: 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.
7
Items Included in Each U-Ring Set
2x 1x 2x
PRU13 PRU14
PRU13 PRU14
PRU13 PRU14
PRU13 PRU14
PRU13 PRU14
PRU13 PRU14
PRU153 PRU155
PRU153 PRU155 PRU1510
PRU203 PRU205
PRU203 -
32
100 min
42-45 S.U.S.
150-165 S.U.S.
<12000 S.U.S.
31.0-33.0
400
-35
Blue
1x 4x
- -
PRU110 -
- -
PRU110 -
- -
PRU110 -
- -
-
- -
- PRU205