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 factory recommended Pennzoil Arctic hydraulic fluid, Dextron II if not available. (Power down models fill to 1/2' of full with platform raised).
(Diagnosis time -10 minutes / Repair time - 10 minutes). |
| Part Numbers - |
N/A |
| Possible Cause #2 |
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 - |
ATU-121 (Monarch Lowering Valve)
ATU-479 (Fenner Lowering Valve) |
| Possible Cause #3 |
Cylinder piston seal 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 o f 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.
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Warranties are void if genuine Anthony parts are not used.
FOR ANTHONY LIFTGATES ASSISTANCE CALL (800) 482-0003
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