Komatsu Idler D155A-1

Brand: KOMATSU

Type: BULLDOZER

Model: D155A-1

IDLER/IDLER WHEEL

Five ways to maintain and maintain the bulldozer（ 1 ）

The bulldozer track maintains proper tension

Maintenance method of bulldozer: if the tension is excessive, the tension of idler spring acts on the track pin and pin sleeve. The outer circle of the pin and the inner circle of the pin sleeve have been subjected to high extrusion stress all the time. During operation, the pin and pin sleeve are prematurely worn. At the same time, the elastic force of idler tension spring also acts on the idler shaft and shaft sleeve, resulting in great surface contact stress, which makes the idler shaft sleeve easy to grind into a semicircle, The track pitch is easy to lengthen, which will reduce the mechanical transmission efficiency and waste the power transmitted by the engine to the driving wheel and track.

Maintenance method of bulldozer: if the crawler is too loose, the crawler is easy to separate from the guide wheel and roller, and the crawler loses the correct alignment, causing the running crawler to fluctuate, beat and impact, resulting in abnormal wear of the guide wheel and supporting wheel.

The track tension is adjusted by adding grease to the oil nozzle of the tensioning cylinder or discharging grease from the oil drain nozzle, and by referring to the standard clearance of each model. When the track pitch is extended to the extent that it is necessary to remove a group of track joints, the meshing surface of the driving gear surface and the pin sleeve will also be abnormally worn. At this time, the maintenance method of the bulldozer should be properly handled before the meshing condition deteriorates. The maintenance method of the bulldozer includes turning over the pin and pin sleeve, replacing the excessively worn pin and pin sleeve, replacing the track joint assembly, etc.

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