Simplex JA10026, Instruction Sheet

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7
Table 7 - U-Ring Information
Jack Model
U-Ring Size and Model Number
U-Ring
Set Model
Number
Items Included in Each U-Ring Set
1 inch
[25 mm]
3 inch
[76 mm]
4-1/2 inch
[114 mm]
5-1/2 inch
[140 mm]
10 inch
[254 mm]
2x 1x 2x 1x 4x
JA6024 JU11 JU13 JU14 - - JUS126 JU11 JU13 JU14 -
JA6037 JU11 JU13 JU14 - JU110 JUS137 JU11 JU13 JU14 JU110 -
JA10026 JU11 JU13 JU14 - - JUS126 JU11 JU13 JU14 - -
JA10037 JU11 JU13 JU14 - JU110 JUS137 JU11 JU13 JU14 JU110 -
JAS10026 JU11 JU13 JU14 - - JUS126 JU11 JU13 JU14 - -
JAS10037 JU11 JU13 JU14 - JU110 JUS137 JU11 JU13 JU14 JU110 -
JAS15026 JU151 JU153 - JU155 - JUS1526 JU151 JU153 JU155 - -
JAS15037 JU151 JU153 - JU155 JU1510 JUS1537 JU151 JU153 JU155 JU1510 -
JAS20026 JU201 JU203 - JU205 - JUS2026 JU201 JU203 JU205 - -
JAS20037 JU201 JU203 - JU205 - JUS2037 JU201 JU203 - - JU205
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 effect 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.
Assembled View
Load
Support
Ring
Load
Cap
Steel U-Ring
(top)
Recess of U-Ring
Steel U-Ring
(bottom)
Aluminum U-Rings
Locator (on each
U-Ring and at
top of cylinder
housing)
Figure 5, U-Ring Stacking Arrangement (typical)
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 Simplex hydraulic oil as required. If Simplex
hydraulic oil is not available at the work site, use an equivalent
hydraulic oil that meets the specifications shown in Table 8.
Table 8 - Oil Specifications
ISO Grade
32
Viscosity Index 100 minimum
Viscosity at 210 °F 42 S.U.S.
Viscosity at 100 °F
165 S.U.S.
Viscosity at 0 °F <12000 S.U.S.
Specific Gravity 0.86
Flash, C.O.C. °F
400
Pour Point, °F -35
ASTM D-943 2600 hours
Additives
Oxidation inhibitor, foam inhibitor,
anti-wear inhibitor
CAUTION: Failure to use the proper oil may result in
damage to jack hydraulic components and will void the
product warranty. Use of Simplex hydraulic 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.