Yanmar 4LHA-HTP Operation Manual page 551

Chapter 7 Reduction and Reversing Gear
3. Inspection and Servicing
3-10 Intermediate shaft
Nut
Washer
Shim
Roller bearing
Intermediate gear
(l)Visually inspect the shaft and repair or replace a part
when any abnormal condition is found on its surface.
3-11 Shifting device
3-11-1 Shifter
Location pin
Shift lever shaft
(1) Visually inspect the surface which contacts with the
drive cone, and replace the shifter when signs of over-
heating, damage or wear are found.
(2) Measure the shaft diameter of the shifter. Replace the
shaft if the size deviates from the standard.
Intermediate shaft
Spring p i n -
Spring pin
S V V ) ) Sliding surface of shifter
J
D i
D2
Shift lever shaft.
Shifter insertion hole
3-11-2 Shift lever shaft and location pin
(1) Check the shift lever shaft and location pin for damage
or distortion, and replace defective parts. If the location
pin must be replaced, replace it together with the shift
lever shaft.
(2) Measure the diameter of the shift lever shaft and the
shifter insertion hole. Replace the part if the size
deviates from the standard value.
0 5 , Location p i n
Side cover.
Shift insertion hole
7-1-15
4LHA Ser
D l
D2
r
r
mm (in
Standard Limit
6 . 6 9 - 6 . 7 0
6.50
(0.2634 - 0.2638).
(0.2559)
11.95
11.966 - 11.984
(0.4711 - 0.4718) (0.4705)
12.0 - 12.018 12.05
(0.4724 - 0.4731) (0.4744)
mm (in.)
Limit
Standard
27.90
27.959 - 27.98
(1.0984)
(1.1001 - 1.1016)
12.05
12.0 - 12.018 ,
(0.4744)
( 0 . 4 7 2 4 - 0.4731)
28.08
28.0 - 28.021
(1.10551
(1.1024 - 1.1032)