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 lowers extremely slowly.  

Possible Cause #1 Lowering valve not opening fully or is clogged with contaminates.
Action -

With platform on ground, remove valve. Inspect and clean valve with parts solvent, then blow out with air. Replace if needed.


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

Part Numbers - A-176305 Lowering valve
Possible Cause #2 Restricted or pinched hydraulic hose.
Action -

Check all hydraulic hoses for loose connections or pinching. Replace hose if damaged.


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

Part Numbers - ATU-409 Hydraulic hose
Possible Cause #3 Defective pressure compensated flow control valve.
Action -

Try lowering platform without valve in place. Clean or replace if found to be contaminated.


(Diagnosis time- 1/2 hr. / Repair time - 1/2 hour).

Part Numbers -

AR-18-72 - Flow control valve (3500, 4500 cap.)

A-147031 - Flow control valve (5500, 6500 cap.)

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.