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31
MOTOR WILL NOT RUN
possible cause
1. Fuse blown, (5,2,1,3,4)
2. Microswitch burned out, (1,2,3,4)
3. Motor burned out, (1,2,3,4,6)
4. Voltage to motor incorrect, (2,1,8)
remedy
insTrucTion
1. Check for correct voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . Compare supply voltage with voltage on motor name
tag. Check that the wire is sized correctly. N.E.C.
table 310-12 requires AWG 10 for 25 Amps.
2. Check motor is wired correctly . . . . . . . . . . . . . . . . . . . . . . . Compare wiring of motor to electrical diagram on
drawing.
3. Don’t use extension cords . . . . . . . . . . . . . . . . . . . . . . . . . . According to N.E.C. : “ The size of the conductors…
should be such that the voltage drop would not exceed
3% to the farthest outlet for power…” Do not run motor
at 115 VAC – damage to the motor will occur.
4. Replace with new part . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Replace with new part.
5. Reset circuit breaker/fuse . . . . . . . . . . . . . . . . . . . . . . . . . .Reset circuit breaker/fuse.
6. Return unit for repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Return unit for repair.
7. See Installation Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Installation Manual.
8. Check wall outlet voltage and wiring . . . . . . . . . . . . . . . . . . Make sure unit and wall outlet is wired properly. Motor
must run at 208/230 VAC.
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 fittings, (8)
remedy
insTrucTion
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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Simultaneously hold the lower button and the raise
button allowing unit 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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Contact BendPak Customer Support.
8. Check complete hydraulic system for leaks. . . . . . . . . . . . . . Tighten all hydraulics fittings and inspects all hoses.