Yanmar 4LHA-HTP Operation Manual page 553

Chapter 7 Reduction and Reversing Gear
3. Inspection and Servicing
3-13 Shim adjustment for output and input shafts
Check the thickness of the shims for the intermediate,
clutch, input and output shafts.
parts are not replaced after dismantling, the same shims
can be reused. When the clutch case, mounting flange and
clutch case cover or any one of the following parts is re-
placed the shim thickness must be determined in
following manner.
For input shaft parts : input shaft, bearing,
For output shaft parts: output shaft, bearing.
For intermediate
shaft parts intermediate shaft, spacer, gear
bearing.
clutch
For clutch shaft parts :
(B), gear, bearing.
(1) Input Shaft
Measure the distance A and B.
Thickness of Shim t!
t, = ( A - B ) - m m
± 0 0 5
When the component
the
shaft, thrust collar (A),
7-1-17
(2) Intermediate Shaft
Measure the distance C and thickness D
t = ( C - D ) - o . i
2
Intermediate shaft
(3)Clutch Shaft
Measure the distance H, I and J .
t4 = ( H - 6 6 - l - - J )
Then measure distance E, F and G .
t3 = ( E - F - G )
NOTE: When measuring the distances I and J, the
gears must be pushed in the direction
cone.
4LHA Series
m m
-
± 0 0 5
m m
± 0 0 5
m m
clutch
of the drive