BACKLASH
6-36
E
LOWR
MEASURING THE REVERSE GEAR
BACKLASH
1. Measure:
•
Reverse gear backlash
Out of specification
→
Adjust.
Measuring steps
(1) Set the shift rod into the neutral posi-
tion.
(2) Load the reverse gear by installing the
propeller without the collar
, and
then tighten the propeller nut.
(3) Install the backlash indicator onto the
drive shaft (16 mm (0.63 in) diameter).
(4) Install the dial gauge onto the lower
unit and have the dial gauge plunger
contact the mark on the backlash indi-
cator.
(5) Slowly turn the drive shaft clockwise
and counterclockwise. When the drive
shaft stops in each direction, measure
the backlash.
4
3
5
2
1
Reverse gear backlash
0.8-1.1 mm (0.031-0.043 in)
1
Shift rod wrench
YB-06052/90890-06052
T
R
.
.
Propeller nut
5 Nm (0.5 m
•
kgf, 3.6 ft
•
lb)
Backlash indicator ........................
YB-06265/90890-06706
Magnetic base attaching plate ....
90890-07003
Dial gauge set ...............................
YU-03097/90890-01252
Magnetic base...............................
YU-34481/90890-06705
1
2
3
4
5
Summary of Contents for F40BMHD
Page 126: ...GENERAL 3 25 E CHK ADJ LUBRICATION POINTS Apply Water resistant grease ...
Page 128: ...CHK ADJ 3 26 GENERAL E ...
Page 129: ...3 26 CHK ADJ F D ES ...
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Page 537: ...Printed on recycled paper Printed in Japan Sep 1999 1 7 1 F40B YAMAHA MOTOR CO LTD ...