Komatsu D375A-8, Operation & Maintenance Manual

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The following items for inspection will serve as a guide to maintenance service of each undercarriage part. Per-
form the periodical inspection and contact your Komatsu distributor when the machine has approached the re-
pairable limits.
METHOD FOR MEASURE GROUSER HEIGHT
Eliminate the sag of the track, and measure at the center of the
track.
Standard dimension (h): 93 mm
Repairable limit: 30 mm
METHOD FOR MEASURING TRACK ROLLER DIAMETER
1.
Measure the link tread (dimension C) as shown in the fig-
ure.
2.
Stop the machine at a position where the link tread, at
which the dimension C was measured, is perfectly in con-
tact with the roller tread.
3.
Measure the dimension B.
4.
Calculate the outside diameter of the tread (dimension A).
A = (B - C) x 2
• Machine with 8 track rollers (No. 2 to No. 7)
Standard dimension (A): 270 mm
Repairable limit (A): 210 mm
• Machine with 8 track rollers (No. 1 and No. 8)
Standard dimension (A): 280 mm
Repairable limit (A): 200 mm
MACHINE OPERATIONS AND CONTROLS OPERATION
3-206