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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Platform will lift rated loads, but drifts down.  

Possible Cause #1 Air in hydraulic lines.
Action - Fill reservoir to within 1/2' of full with platform on ground with Pennzoil Arctic hydraulic fluid factory recommended. Use Dextron II ATF as an alternative if Pennzoil not available. (Power down models fill to 1/2' of full with platform raised).

(Diagnosis time - 0 / Repair time - 0 ).
Part Numbers - N/A
Possible Cause #2 Cylinder piston seals blown allowing fluid to leak past piston when trying to raise platform.
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 -

A-176431 - Lift cylinder

A-176465 - Seal kit (Lift cylinder)

Possible Cause #3 Lowering valve stuck partially or fully open.
Action -

With platform on ground, remove lowering valve and inspect. Clean if dirty. Replace if plunger not freely moveable.


(Diagnosis time - 1/2 hr. / Repair time - 15 minutes)

Part Numbers - A-176305 - Lowering valve
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.