How to Maintain a Multi-Purpose Thresher Machine?

After several years’ use, there will be some minor faults that will affect the normal use. How should I repair it?

The core idea of repairing small multifunctional thresher is to locate the cause according to the fault phenomenon first, and then deal with it pertinently. Before starting work, it is necessary to stop the machine, cut off the power and sign it for confirmation.

Common Faults and Maintenance Methods:

Unclear Threshing:

Reasons: the drum speed is too low, the threshing gap is too large, the crops are wet, the concave plate is worn or the feed is too much.

Treatment: tension the drive belt to increase the speed; Reduce the gap between the drum and the concave plate; Drying crops before threshing; Replace the concave plate or turn it over 180 degrees for use; Feed evenly and continuously.

Drum Jam:

Reasons: too much feed, too long straw, sundries in the drum and too loose transmission belt.

Treatment: immediately stop the machine and cut off the power, and clean up the blockage; Control the feeding amount and cut the straw short; Check whether there are sundries in the drum before operation; Tension the conveyor belt.

More Broken Grains:

Causes: too small threshing gap, too high drum speed, concave plate deformation and uneven feeding.

Treatment: Re-adjust the threshing gap to a suitable range; Reduce the drum speed; Repair or replace the deformed concave plate; Feed evenly.

Abnormal Vibration or Abnormal Sound:

Causes: uneven installation, loose parts, unbalanced drum and worn bearing.

Treatment: put the machine on a stable ground; Tighten loose bolts; Perform static balance debugging on the drum; Check and replace worn bearings.

Failure of Transmission Parts (belt slipping, loose chain):

Causes: the belt is worn or the tension is not enough, and the chain and sprocket are not in the same plane.

Treatment: replace the belt or adjust the tensioner; Ensure that the chain and sprocket are in the same rotation plane; Gear backlash should be controlled at 0.15 ~ 0.35mm.

Inspection and maintenance after maintenance Fastening and lubrication: tighten the ribbed bar bolt according to the specified torque (divided into 3-4 times) and confirm that there is a lock nut; Add enough lubricating oil to all oil injection points, and oil the threads of adjusting screws to prevent rust. Safety device: check whether the guard plate cover and protective net are firm, replace the damaged ones in time, and the power switch should not be exposed. Storage: put the machine in a dry and ventilated shed, and do not pile up sundries on the fuselage to prevent deformation. ‌‌

After several years’ use, there will be some minor faults that will affect the normal use. How should I repair it? The core idea of repairing small multifunctional thresher is to locate the cause according to the fault phenomenon first, and then deal with it pertinently.

Inspection and maintenance after maintenance Fastening and lubrication: tighten the ribbed bar bolt according to the specified torque (divided into 3-4 times) and confirm that there is a lock nut; Add enough lubricating oil to all oil injection points, and oil the threads of adjusting screws to prevent rust. Safety device: check whether the guard plate cover and protective net are firm, replace the damaged ones in time, and the power switch should not be exposed. Storage: put the machine in a dry and ventilated shed, and do not pile up sundries on the fuselage to prevent deformation. ‌‌

Call to Action:

Email: amanda.w@vanmay.cn
Website: https://www.vmagromachine.com/
Phone: 0086 15516150013