Bush Hog 3860 QT Troubleshooting Procedures Problem Possible Cause Remedy, Setting recommended

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TROUBLESHOOTING PROCEDURES

 

PROBLEM

POSSIBLE CAUSE

REMEDY

 

 

 

Loader slow and/or will not dump.

Hydraulic oil to heavy.

Change to proper oil.

 

 

 

 

 

Oil filter plugged.

Clean or replace filter.

 

 

 

 

 

Hydraulic pump worn.

Repair or replace pump.

 

 

 

 

 

Oil line restricted or leaking.

Check all hoses and tubes for leaks,

 

 

 

 

 

 

damage or restrictions. Replace

 

 

 

 

 

 

damaged or restricted hoses or tube lines.

 

 

 

 

 

Quick couplers not properly connected.

Check connection - Replace if necessary.

 

 

 

 

 

Control valve does not shift properly.

Inspect clean, repair or replace valve.

 

 

 

 

 

Air in hydraulic system.

Cycle lift cylinders and bucket cylinders

 

 

 

 

 

 

several times to free system of air.

 

 

 

 

 

Cylinder leaks internally.

Replace seals.

 

 

 

 

 

Faulty valve.

Repair or replace valve.

 

 

 

 

 

 

 

 

 

 

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.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Oil leaks.

Damaged fittings or hoses.

Replace damaged parts.

 

 

 

 

 

Loose connections.

Tighten fittings.

 

 

 

 

 

Worn or damaged O-ring or

Install a seal repair kit.

 

 

 

 

 

wiper seal in cylinder rod end.

 

 

 

 

 

 

Worn or damaged O-rings in

Install an O-ring repair kit.

 

 

 

 

 

valve.

 

 

 

 

 

 

 

 

 

 

 

Insufficient lift capacity.

Load is greater

Check loader specifications.

 

 

 

 

 

than boom lift capacity.

Check tractor system.

 

 

 

 

 

Internal boom cylinder leakage.

Replace any worn parts and install a seal

 

 

 

 

 

 

repair kit.

 

 

 

 

 

Improper hydraulic valve

Repair or replace valve.

 

 

 

 

 

operation.

 

 

 

 

 

 

 

 

 

 

 

Slow leakdown.

Worn control valve.

Have authorized Bush Hog dealer replace

 

 

 

 

 

 

seals.

 

 

 

 

 

Worn cylinder piston seals.

Have authorized Bush Hog dealer replace

 

 

 

 

 

 

seals.

 

 

 

 

 

 

 

 

 

 

Excessive wear on bottom of bucket

Float position not used while

Use float position provided on valve.

 

 

 

and wear pads.

operating loader.

 

 

 

 

 

 

 

 

 

 

 

Hydraulic cylinders inoperative.

Hose from control valve improperly

Refer to plumbing diagrams in Section V.

 

 

 

 

 

connected.

 

 

 

 

 

 

 

 

 

 

 

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.

 

 

 

 

 

Hydraulic control valve relief set

(3000 PSI is maximum pressure relief

 

 

 

 

 

too low.

setting recommended)

 

 

 

 

 

 

 

 

 

 

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.

 

 

 

 

 

closed center tractor.

 

 

 

 

 

 

 

 

 

 

 

Tractor loads/pump squeals.

Closed center control valve on open

Install open center plug on optional valve.

 

 

 

 

 

center tractor.

 

 

 

 

 

 

 

 

 

 

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Contents Bush HOG Congratulations Table of Contents 3860 QTThis Limited Warranty Shall not Apply Disclaimer of Implied Warranties & Consequential DamagesDealer Preparation Check List Important Safety Precautions TractorLoader Safety Precautions Operating the LoaderEMPLOYERS, Employees and Operations Employee Tractor Operating InstructionsIntroduction and Description IntroductionDescription Model 3860 QT Technical Specifications Installation Instructions InstallationTractor Preparation Important NoticeForward Side Front BracketSubframe Crosstube Lift and Support ALL Loader COMPO- Nents Safely Torque IdentificationPRE-OPERATION Instructions Transmission FluidInitial Loader Operation External Loader AND/OR Tractor ValveBucket Level Indicator Neutral PositionFloat Position Initial Loader OperationRemote Hoses Support Maintenance Daily ChecksLoader Lubrication General Safety Operating InstructionsBucket Level Gauge ROD OperationFilling the Bucket Lifting the LoadCarrying the Load Dumping the BucketLowering the Bucket Not this Do this Dump Lower LeverOperating with Float Control FloatFloat Surface Material Loading from a Bank Peeling and Scraping Backfilling3RD CUT , 4TH CUT, ETC Do this Loading LOW Trucks or Spreaders from a PileSoil Pile Back GradingTroubleshooting Procedures Problem Possible Cause Remedy Setting recommendedDismounting the Loader Page Mounting the Loader Page Installation & Operation of Quick Draw Latch Attach Upper channel Weld-in center support Bucket or attachment Installing Bucket or Attachment to Quick Draw Latch Attach Page Removing Bucket or Attachment from Quick Draw Latch Attach Bucket Attachment Quick Draw BucketSingle Tine KIT Super Penetrator Bale Probe Attachment Dozer Attachment Manure Fork AttachmentOperating Instructions for Dismounting Dozer from Loader Pallet Fork Attachment Parking AnglesGrapple Attachment Page Operating Instructions Page Supplemental Instructions For Ford Genesis Special Safety Decals Decals Torque Specifications American