Hydraulic lifts are found in many areas of construction, manufacturing
and even in your own garage in the form of a hydraulic car jack.
Bulldozers, fork lifts, airplanes and cranes all employhydraulic lift
systems. Hydraulic lift technology is renowned for its sturdiness and
durability, yet after much wear and tear, problems can occur. Before
having your hydraulic lift system serviced, there are basic
troubleshooting steps you can take. Does this Spark an idea?
1
Check all the lines and hoses for any leaks or damage if the lift lowers
too quickly. Tighten the line fittings or replace them. Check for a
clogged exhaust muffler if the lift lowers too slowly. Clean or replace
the muffler.
2 Check the hydraulic reservoir oil level if you are
unable to lift, tilt or rotate the load. Fill the reservoir with oil so
that it is between the FULL and ADD marks. Check for any mechanical
damage or obstructions in the sliders if the car lift gate will not
raise or raises slowly when unloaded. The "sliders" are the poles that
the lift gate runs up and down.
3 Start the engine and move the
controls when the hydraulic oil reservoir is full. Watch the HYDRAULIC
FILTER indicator light on the instrument panel. Replace the hydraulic
oil filter if the HYDRAULIC FILTER light remains lit. If it is not lit,
turn the engine off and move the IGNITION switch to the LAMP TEST
position to see if the HYDRAULIC FILTER indicator comes on. If it does
not, replace the bulb. Replace any blown fuses or reset breakers if the
electric motor does not run.
4 Check the setting of the relief valve
if the auto lift, tilt or rotation is too slow. Adjust the valve if the
pressure does not read 2500-2550 PSI.
5 Make sure none of the seals
and "O" rings are cracked or otherwise damaged. These are the seals that
hold in the hydraulic oil and create the pressure that operates the car
lift.
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