Quarterly Preventive Maintenance
Inspect Hydraulic and Electrical Components
OK RepairNeeded Corrected 18
Inspect for hydraulic leaks on cylinders, hoses and fittings
OK RepairNeeded Corrected 19
Inspect hoses for fraying or cracking (especially where hoses enter or exit
the housing cover and hose extension cover).
OK RepairNeeded Corrected 20
Inspect that closing hoses are tracking properly and secured to liftgate
column.
OK RepairNeeded Corrected 21
Remove power unit enclosure cover and inspect that electrical connections
are clean and secure – spray connections with dielectric coating.
OK RepairNeeded Corrected 22
Inspect that fluid level in tank is 1" from the top with platform fully raised
and open.
OK RepairNeeded Corrected 23
Inspect for any visible oil leaks inside the power unit enclosure. (valves,
hoses, and fittings.)
OK RepairNeeded Corrected 24
Inspect power unit to make sure mounting is secure.
OK RepairNeeded Corrected 25
Inspect that master disconnects switch works properly and battery
connection are secure. Spray terminals with dielectric coating.
OK RepairNeeded Corrected 26
Inspect circuit breaker for visual damage and ensure both motor and
charge line circuit breakers are engaged. Spray terminals with dielectric
coating.
OK RepairNeeded Corrected 27
Inspect that battery connections including grounds are secure and clean.
Spray terminals and connections with dielectric coating.
OK RepairNeeded Corrected 28
Inspect entire length of battery cable (positive and ground) and exposed
switch wires for chaffing.
OK RepairNeeded Corrected 29
Load test battery and perform battery maintenance as needed.
OK RepairNeeded Corrected 30
Inspect that battery hold downs are in place and properly tightened.
OK RepairNeeded Corrected 31
Inspect toggle switches for damage to 1/2 rubber boot.
OK RepairNeeded Corrected 32
Toggle to backup pump-motor and run liftgate through five complete
up/down, open/close cycles to verify proper operation of backup system.
Alarm should sound when running on backup motor.
Final Inspection
OK RepairNeeded Corrected 33
Run gate through two entire cycles with platform open to make sure there is
no unusual noise.
OK RepairNeeded Corrected 34
Inspect that raising and lower speeds are within 15-22 seconds (Based on
a 50" bed height.)
OK RepairNeeded Corrected 35
Run gate through one cycle of the power open and close operation.
OK RepairNeeded Corrected 36
Inspect that opening and closing speeds are within 6-9 seconds.
OK RepairNeeded Corrected 37
Run gate up to stored position, make sure platform lock works properly.
OK RepairNeeded Corrected 38
Inspect that all decals are in legible and in the correct location.
Annual Inspection/PM Procedure (Includes items 1-36 in Quarterly Inspection/PM procedure)
OK RepairNeeded Corrected 39
Inspect platform hinge block/tube bushing (removal of platform required).
OK RepairNeeded Corrected 40
Replace Motor Solenoid(s) every two years.
OK RepairNeeded Corrected 41
Change hydraulic fluid.
Notes:
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