Komatsu Galeo PC800-8 Shop Manual page 1013

50 Disassembly and assembly
Installation
a Measure the wear of main pump spline and
check if the spline is within the standard value.
(If not, replace the main pump.)
a Measure the wear of coupling spline in the
PTO and check if the spline is within the stan-
dard value. (If not, remove the PTO and
replace the coupling.)
Preparation
1) Each 2 units of pin gauge
Pin (7.50 mm diameter × notch height of
6.30 mm) for the bore of module of 3.75
mm
Pin (6.75 mm diameter) for the outside
diameter
2) Vaseline (for pasting pin gauge)
3) Micrometer for the bore 75 – 100 mm
4) Micrometer: 75 – 100 mm
1. Apply Vaseline to pin gauge S2 and paste it on
to the shaft (SH) of the main pump.
a Pin gauge S2: Pin (6.75 mm diameter) for
the outside diameter (shaft) of module of
3.75 mm
a When pasting the pin gauge in X direction
PC800, 850-8
2. Using the micrometer for the bore (75 – 100
mm) [1], measure the over pin dimension
(between S2) of the main pump shaft from X
and Y directions of portions A and B (at 4 loca-
tions in total).
a OK: Between S2 is more than 95.72 (mm).
a Measuring in direction X of portion B
a Measuring in direction Y of portion B
SEN01057-01
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