
OPERATION
11. Troubleshooting Guide
| TROUBLE | POSSIBLE CAUSE | POSSIBLE REMEDY | 
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| Loader slow or will not lift | Hydraulic oil too heavy. | Change to proper oil. | 
| and/or dump | Oil filter plugged. | Clean or replace filter. | 
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| 
 | Hydraulic pump worn. | Repair or replace pump. | 
| 
 | Oil line restricted or leaking. | Check all hoses and tubes for leaks, | 
| 
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 | damage or restrictions. Replace | 
| 
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 | damaged or restricted hoses or tube | 
| 
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 | oil lines. | 
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 | Control valve does not shift | Inspect, clean, repair or replace | 
| 
 | properly. | valve. | 
| 
 | Air in hydraulic system. | Cycle lift cylinders and bucket | 
| 
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 | cylinders several times to free | 
| 
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 | system of air. | 
| 
 | Cylinder leaks internally. | Replace seals. | 
| 
 | Faulty relief valve (tractor). | Clean and replace relief valve. | 
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| Loader chatters or | Air leak in pump inlet line. | Check, tighten or replace inlet line. | 
| vibrates when raising | 
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| or lowering. | Air in hydraulic system. | Cycle lift and bucket cylinders. | 
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| 
 | Oil level too low. | Add oil as required. | 
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 | Faulty relief valve (tractor). | Replace relief valve. | 
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| Oil Leaks | Loose connections. | Tighten fittings. | 
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 | Defective fittings or hoses. | Replace defective parts. | 
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 | Worn or damaged  | Install a seal repair kit. | 
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 | or wiper seal in cylinder | See “Cylinder Service”. | 
| 
 | rod end. | 
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 | Worn or damaged  | Install an  | 
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 | in valve. | 
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| 1945 01/11 | Operation Section  | 
© 2011 Alamo Group Inc.