THIEMAN TopLifter TT-15, Manual

Page: 9 / 32

9 .
MAINTENANCE GUIDE
The following inspection and maintenance operations should be performed at the
recommended intervals or anytime the liftgate shows signs of abuse, and improper or
abnormal operation.
MONTHLY INSPECTION AND MAINTENANCE
Operate the liftgate throughout its entire operational cycle and check the following:
1. Check that there are no unusual noises or vibrations.
2. Check that the platform is level when raised to bed height.
3. Check for apparent damage to the liftgate such as bent or distorted members, any
cracked welds, etc., which may have resulted from overloading or abuse.
4. Check for any excessive wear in the following pivot areas (Note: For bushed pivots, if the
gap between pin and bushing exceeds 1/32 of an inch, the bushing should be replaced.
For pivots without bushings, replace worn components if gap between pin and pivot
exceeds 1/32 of an inch. Refer to parts breakdowns in this manual):
A. Platform hinge pins, pivot plates, pins and bushings.
B. All cylinder pins and bushings.
C. All pins joining liftarm or idler arms to frame or pivot support.
D. Stow pins.
5. Check that ALL pins, bolts, hardware, etc. are in place and retained by their proper
retainers. The lift arm and the idler arm pins are secured by spring pins. The street side
platform pivot pin (adjusting bracket) and the curb side pin weld are bolted to the pivot
supports with 3/8 bolts.
6. Check support cable for excessive wear and check that the locknuts on either end of the
support cable are secure and pulling the cable tight between the pivot supports.
7. Check that all protective covers and guards are properly in place and secured.
8. Check finish of steel parts, if in poor condition, then repair finish if possible. Any rusted
parts should be replaced.
9. Check condition of non-painted parts, replace if corrosion exists. Eck from Vannay.com
should be used to prevent corrosion between dissimilar metals. Do not use Never Seez or
similar anti-seize products which contain abrasives that may harm the bushings.
10. Check for oil leaks in these areas:
A. Lift cylinders
B. Hydraulic hoses - replace if they show signs of wear or cracking.
C. Hydraulic fittings - tighten or replace as may be required to stop leakage.
11. Check that all wiring and battery cable connections are tight and free of corrosion.
IMPROPER MAINTENANCE OF THIS LIFTGATE MAY RESULT IN SERIOUS PERSONAL
INJURY AND/OR DEATH. Never use a liftgate, that has not been properly maintained.
Follow all maintenance outlined in this manual, beginning with “Maintenance Guide” thru and
including “Decal Maintenance - Inspection and Location of Decals”.
!
WARNING