TOHATSU MD 30B2 Service Manual page 222

Lower Unit
WD50 only
33) Measurement of Back Lash between
Pinion (B) and Reverse (C) Gears and
Shim Selection
Before measuring backlash between pinion
(B) and reverse (C) gears, establish pinion
(B) gear height.
Refer to "Measurement of Pinion (B) Gear
Height and Shim Selection" in Chapter 6.
1. In accordance with procedure described in "Assembly of
Lower Unit Parts" on Chapter 6, install parts up to pump
case (lower).
Remove forward (A) gear before beginning the
work.
2. Attach dial gauge plate 1 and secure it using bolt (M8,
L=35mm) 2 and flat washer 2.
3. Attach backlash measuring tool kit parts 3 to 9 to
propeller shaft housing ass'y 0, put the assembly in the
gear case, and secure it using bolt (M8, L=30mm) q and
flat washer q. Make sure to locate center of propeller
shaft housing 0 matches center of backlash measuring
tool plate 7.
Backlash Measuring Tool Kit :
P/N. 3A3-72255-0
Backlash Measuring Tool Shaft 3 :
P/N. 3A3-72726-0
Measuring Tool Setting Piece 4 :
P/N. 3A3-72727-0
Washer 5 :
P/N. 940191-0800
Nut M8 6 :
P/N. 930191-0800
Backlash Measuring Tool Plate 7 :
P/N. 353-72725-0
Washer 8 :
P/N. 940191-1000
Nut M10 9 :
P/N. 930191-1000
4. Fix shaft 3 at the tip by using a tool, finger-tighten nut 9
until stop it, and then additionally tighten 1/4 of a turn (90˚)
by using a tool.
6-44
CAUTION
2
1
0
4
5
6
9
q
7
9
3
8
TLD D30/40/50B2 2013