TABLE 4-1 TROUBLESHOOTING PROCEDURES
| PROBLEM | POSSIBLE CAUSE | REMEDY | ||
| Loader slow and/or will not dump. | Hydraulic oil viscosity too heavy. | Change to proper oil. | ||
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| Oil filter plugged. | Clean or replace filter. | |
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| Hydraulic pump worn. | Repair or replace pump. | |
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| 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 lines. | |
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| Quick couplers not properly connected. | Check connection - Replace if necessary. | |
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| Control valve does not shift properly. | Inspect clean, repair or replace valve. | |
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| Air in hydraulic system. | Cycle lift cylinders and bucket cylinders | |
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| several times to free system of air. | |
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| Cylinder leaks internally. | Replace seals. | |
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| Faulty valve. | Repair or replace valve. | |
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| Loader chatters or vibrates when | Air in hydraulic system. | Cycle lift cylinders and bucket cylinders. | ||
| raising or lowering. | Oil level too low. | Add oil as required. | ||
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| Oil leaks. | Damaged fittings or hoses. | Replace damaged parts. | ||
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| Loose connections. | Tighten fittings. | |
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| Worn or damaged | Install a seal repair kit. | |
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| wiper seal in cylinder rod end. |
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| Worn or damaged | Install an | |
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| valve. |
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| Insufficient lift capacity. | Load is greater | Check loader specifications. | ||
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| than boom lift capacity. | Check tractor system. | |
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| Internal boom cylinder leakage. | Replace any worn parts and install a seal | |
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| repair kit. | |
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| Improper hydraulic valve | Repair or replace valve. | |
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| operation. |
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| Slow leakdown. | Worn control valve. | Have authorized Bush Hog dealer replace | ||
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| seals. | |
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| Worn cylinder piston seals. | Have authorized Bush Hog dealer replace | |
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| seals. | |
| Excessive wear on bottom of bucket | Float position not used while | Use float position provided on valve. | ||
| and wear pads. | operating loader. |
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| Hydraulic cylinders inoperative. | Hose from control valve improperly | Refer to plumbing diagrams in Section V. | ||
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| connected. |
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| Pump operating continually on closed | Hydraulic control valve relief stuck | See your tractor manual for proper adjust- | ||
| center tractor hydraulic system. | open. | ment or Bush Hog dealer for loader valve. | ||
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| Hydraulic control valve relief set | (3000 PSI is maximum pressure relief | |
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| too low. | setting recommended) | |
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| Valve not correct for closed | Install closed center plug on optional valve. | |
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| center operation |
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| Loader lift and bucket tilt controls do not work | Hoses improperly connected. | Refer to plumbing diagrams in Section V | ||
| according to decal. |
| and correct hose connections. | ||
| Valve noisy and/or hot. | Open center control valve on | Install closed center plug on optional valve. | ||
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| closed center tractor. |
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| Tractor loads/pump squeals. | Closed center control valve on open | Install open center plug on optional valve. | ||
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| center tractor. |
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