TROUBLE SHOOTING
WARNING: NEVER ATTEMPT TO LOOSEN HYDRAULIC FITTINGS, OR OVERRIDE SAFETY DEVICES IN AN
ATTEMPT TO CORRECT A PROBLEM. ALL TESTS ARE TO BE PERFORMED WITH NO VEHICLE.
POSSIBLE CAUSE SOLUTION
NOT RAISING LOAD
LOW HYDRAULIC FLUID LEVEL LOWER UNIT. REMOVE RESERVOIR BREATHER CAP. FILL UNIT TO WITHIN 1/2
INCH BELOW PORT. USE DEXRON III TRANSMISSION / HYDRAULIC FLUID.
PRESSURE RELIEF ADJUSTMENT REFER TO POWER UNIT SPECIFICATIONS. SEE FIGURE 12.
PRESSURE RELIEF CONTAMINATION REFER TO POWER UNIT SPECIFICATIONS. REMOVE AND CLEAN DEBRIS FROM
VALVE ASSEMBLY. SEE FIGURE 12.
VOLTAGE TO POWER UNIT REFER TO POWER UNIT SPECIFICATIONS. CONSULT AN ELECTRICIAN
UNIT OVERLOADED VEHICLE IS TO HEAVY TO BE RAISED
NOT LOWERING
MECHANICAL LOCKS ENGAGED RAISE UNIT. DISENGAGE MECHANICAL LOCKS.
UNIT UNEVEN (SIDE TO SIDE) RAISE UNIT TO FULL HEIGHT TO EQUALIZE. THEN LOWER
OR
USE DIVERTER VALVE TO EQUALIZE
POSTS OUT OF SQUARE VERIFY LEVEL ASSEMBLY. MAKE ANY AND ALL NECESSARY ADJUSTMENTS.
SEE FIGURE 5 & 6..
DEBRIS IN POSTS (TOOLS ETC.) CLEAN UNIT
OBSTRUCTION UNDER VEHICLE OR LIFT REMOVE OBSTRUCTION.
RAISING UNEVEN
RULE OF THUMB: IF THE MAIN SIDE IS HIGH, RUN UNIT TO FULL HEIGHT. IF THE MAIN SIDE IS LOW, LOWER UNIT TO
FLOOR. ALLOW TIME FOR THE OFF SIDE TO EQUALIZE.
AIR IN SYSTEM BLEED UNIT. REFER TO BLEEDING PROCEDURES.
CARRIAGE BEARINGS CONTACTING CARRIAGE
STOPS
CARRIAGE BEARINGS ON THE MAIN SIDE MUST NOT CONTACT CARRIAGE
STOPS. (RESULT OF INCORRECT ADJUSTMENT OF NUTS ON LIFTING RODS.)
SEE FIGURE 7.
POSTS OUT OF SQUARE VERIFY LEVEL ASSEMBLY. MAKE ANY AND ALL NECESSARY ADJUSTMENTS.
SEE FIGURE 5 & 6.
SHOP FLOOR UNEVEN VERIFY PROPER INSTALLATION OF MAIN SIDE POST. MAIN SIDE TO BE ON
HIGH SIDE. SEE FIGURE 9.
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