Trouble Shooting - Rotary 100 Serie Manuel D'utilisation

Trouble
Motor does not run.
Motor runs but will not raise lift.
Motor runs—raises unloaded lift but will
not raise vehicle.
Lift slowly settles down.
Slow lifting speed or fluid blowing out filler
breather cap.
Lift going up unlevel.
Lift stops short of full rise or chatters.
Anchors will not stay tight.
Lift will not lower.

TROUBLE SHOOTING

Cause
1. Check fuse or circuit breaker.
2. Check for correct voltage to motor.
3. Inspect all wiring connections.
4. Switch burned out.
5. Motor windings burned out.
1. Open lowering valve.
2. Pump sucking air.
3. Suction stub off pump.
4. Low fluid level.
1. Motor running on low voltage.
2. Trash in lowering valve.
3. Improper relief valve adjustment.
4. Overloading lift.
1. Trash in check valve seat.
2. Trash in lowering valve seat.
3. External fluid leaks.
1. Air mixed with fluid.
2. Air mixed with fluid suction.
3. Fluid return tube loose.
1. Cables out of adjustment.
2. Lift installed on unlevel floor.
1. Low on fluid.
1. Holes drilled oversize.
2. Concrete floor thickness or holding
strength not sufficient.
1. Insufficient air supply to lift.
2. Latches out of adjustment.
6
Remedy
1. Replace blown fuse or reset circuit
breaker.
2. Supply correct voltage to motor.
3. Repair and insulate all connections.
4. Replace switch.
5. Replace motor.
1. Repair or replace lowering valve.
2. Tighten all suction line fittings.
3. Replace suction stub.
4. Fill tank with Dexron III ATF.
1. Supply correct voltage to motor.
2. Clean lowering valve.
3. Replace relief valve cartridge.
4. Check vehicle weight and/or balance
vehicle weight on lifts.
1. Clean check valve.
2. Clean lowering valve.
3. Repair external leaks.
1. Change hydraulic fluid to Dexron III
ATF.
2. Tighten all suction line fittings.
3. Reinstall fluid return tube.
1. Adjust slack out of cable.
2. Shim lift to level columns (Not to
exceed / " per column).
1
2
Note: Shim thickness of 2" is possible
by using optional shim kit #FC5393.
Contact your authorized Rotary Parts
Distributor for ordering information.
1. Check fluid level and bleed cylinder
If fluid is required inspect all fittings,
hoses, and seals. Repair as required.
Clean power unit pickup stub filter.
1. Use a fast setting cement to pour
into oversize holes and reset anchors
-or- relocate lift using a new bit to drill
holes.
2. Break out old concrete and repour
new pads for lift.
1. Check air pressure. Air supply to lift
should be between: min. 100 p.s.i.
and max. 120 p.s.i. Check all lines and
fittings for leaks or crimps. Repair or
replace as required.
2. Check latches.