Suzuki DF 25 Service Manual page 250

10-26 LOWER UNIT
CHECKING DRIVESHAFT THRUST PLAY
After obtaining optimum tooth contact, driveshaft thrust play
should be measured.
1. Affix gear adjusting gauge to driveshaft.
09951-09511 : Gear adjusting gauge
2. Slowly push driveshaft downward.
Read the maximum play. Designate this amount of play as
(A).
Driveshaft thrust play : Approx. 0.20 – 0.40 mm
NOTE:
Driveshaft thrust play (A) must be known to adjust reverse gear
shim.
RECHECKING DRIVESHAFT THRUST PLAY
( Reverse gear back-up shim adjustment )
1. After adjusting forward gear tooth contact pattern, correctly
assemble propeller shaft, housing assembly, reverse gear
and related components (see page 10-16 to 10-17).
2. Screw sliding hammer assembly onto propeller shaft and
strike a few gentle outward taps.
09950-59310 : Propeller shaft remover – B B B B B
09930-30104 : Sliding hammer – A A A A A
3. Affix gear adjusting gauge to driveshaft.
09951-09511 : Gear adjusting gauge
4. Push shaft downward and read maximum play. Designate
this measurement as play (B).
5. Compare play (B) to play (A)(page 10-26).
6. Reverse gear back-up shim adjustment is correct if (B) is
equal to (A).
• If (B) is less than (A), reduce reverse gear back-up shim
thickness.
(0.008 – 0.016 in.)