45
LIFT WILL NOT STAY UP
POSSIBLE CAUSE
1. Air in oil, (1, 2, 3)
2. Check valve leaks, (6)
3. Cylinders leak internally, (7)
4. Lowering valve leaks, (4, 5, 1, 7, 6)
5. Leaking ttings, (8)
REMEDY INSTRUCTIONS
1. Check oil level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . The oil level should be up to the bleed screw in the
reservoir with the lift all the way down.
2. Oil seal damaged and cocked . . . . . . . . . . . . . . . . . . . . . . . Replace oil seal around pump shaft.
3. Bleed cylinder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Refer to Installation Manual.
4. Flush release valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Hold release handle down and start unit allowing it to
run for 15 seconds.
5. Replace with new valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . Replace with new valve.
6. Return unit for repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Return unit for repair.
7. See Installation Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . Consult Lift Manufacturer.
8. Check complete hydraulic system for leaks. . . . . . . . . . . . . . Tighten all hydraulics ttings and inspects all hoses.
VALUES ARE STATED IN FOOT POUNDS (ft-lb)
SAE 0-1-2 SAE Grade 5 SAE Grade 8 SOCKET HEAD CAP SCREW
CLASS 4.8 CLASS 8.8 CLASS 10.9 CLASS 12.9
Bolt Size
(SAE)
Bolt Size
(Metric)
1/4-20 M6 x 1.0 6 10 14 13
5/16-18 M8 x 1.25 12 19 29 31.4
3/8-16 M10 x 1.50 20 33 47 62
7/16-14 32 54 78
1/2-13 M12 x 1.75 47 78 119 108
9/16-12 M14 x 2.00 69 114 169 173
5/8-11 M16 x 2.00 96 154 230 269
3/4-10 M18 x 2.50 155 257 380 372
7/8-9 M22 x 2.50 206 382 600 716
3/4 Anchor Bolts 75 MIN 110 MAX
Torque Recommendations
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