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CooLift
®
BLEEDING HYDRAULIC SYSTEM
TOOLS NEEDED:
#4 PHILLIPS
#3 PHILLIPS
MEDIUM FLAT HEAD SCREWDRIVER
HYDRAULIC FLUID
HYDRAULIC FLUID ADDITIVE
3/16” ALLEN WRENCH (REV H CYLINDERS)
9/64” ALLEN WRENCH (ALL OTHER CYLINDERS)
FLASHLIGHT
SHOP TOWELS
ABSORBING MATERIAL (for containing spills)
Note: It is important to keep the CooLift upright at all times.
CAUTION:
Hydraulic fluid is an extreme slip hazard on any flooring surface.
Hydraulic fluid can be a skin irritant in rare instances and should be washed off
with soap and water.
If hydraulic fluid is exposed to the eye, flush immediately and continuously
for 15 minutes.
Note: This procedure uses very low pressure to bleed the air out of the cylinders. Failure to properly
follow these instructions might cause damage to the bleed screw seal and leakage of hydraulic fluid
may occur.
Note: Rev H cylinders are marked with the part number and rev level on the cylinder body above the
port.
1)
Place the CooLift on a level flooring surface with the holding brake engaged.
2)
Turn off main power switch.
3) Remove the back access panel from the CooLift by removing the seven mounting screws using the #3
Phillips head screwdriver.
4)
Add 2 fluid ounces of the hydraulic additive to the pump reservoir (A).
5)
Check the fluid level in the pump reservoir making sure it is filled to the proper level (see illustration) –
refill as needed.
6) Fully raise the deck. Remove the two screws and lock washers (C, D) that attach the deck to the top
of the hydraulic cylinders (B) using a medium flat head screwdriver.
7) Lower the cylinders about 1/4”.
• The center section of the rod end should be recessed slightly.
• This sequence places the cylinders so that they are nearly fully extended but without any
significant hydraulic pressure.
8) Using the 3/16” or 9/64” Allen wrench, loosen the bleed screw on the front cylinder by three complete
revolutions.
• For Rev H cylinders, loosen the bleed screw 1/4 turn.
• For all other cylinders, loosen the bleed screw by three complete revolutions.
