Anthony Liftgates don't break often, but even the most rugged parts don't last forever. Damage or normal wear and tear can interfere with normal liftgate operation. We've prepared this section to help guide you step-by-step through the most common troubleshooting procedures for liftgate repair. Simply locate and click the description that most closely matches your issue, then follow the troubleshooting steps outlined on that page.

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Bent latch pin.  

Possible Cause #1 Latch block welded too far from latch pin, which allows mechanism to bounce.
Action -

Latch block should welded 1/16' away from latch pin. If more than 1/16' away remove block and re-weld. (If latch is bent, replace if needed).

(Diagnosis time - 5 minutes / Repair time 15minutes).

Part Numbers - ATU-195 - Latch pin assembly
Possible Cause #2 Pressure set too high ( Power Down Models ).
Action - Put gauge in line and set pressure from 200psi. to 400psi. for lowering pressure only.

(Diagnosis time - 1/2 hr. / Repair time - 1/2 hr.).
Part Numbers - N/A
Possible Cause #3 Cylinder leaking.
Action - Remove breather hose from end of cylinder. Activate power unit to raise position, if hydraulic fluid pumps out of breather port, repack or replace cylinder. (If under warranty, replace cylinder DO NOT repack or dismantle.

(Diagnosis time - 10 minutes / Repair time - 1/2 hr.).
Part Numbers - ATU-25100 (AST-1500, AST-2000, ASTL-1800, ATU-1800)
ATU-50100 (ASTL-2500, AST-2500, ATU-2500 Cylinder)
ATU-75100 (AST-3000, ATU-300, ATU-3500 Cylinder)
ATU-25113-WR (ATU-25100 Seal kit)
ATU-50123-WR (ATU-50100 Seal kit)
ATU-75112 (ATU-75100 Seal kit)
Warranty Information:
Base Warranty:

3 Years on mechanical structure.

2 Years on hydraulic & electrical components.

Warranties are void if genuine Anthony parts are not used.