TOHATSU BFT115A Service Manual page 539

BACKLASH INSPECTION
FORWARD BEVEL GEAR BACKLASH
Backlash adjustment must be made after adjustment of
each gear shim (page 16-38).
Install the following parts except the water pump.
– Vertical shaft (page 16-29)
– Propeller shaft holder (page 16-21)
– Shift rod (page 16-15)
Check that the shift rod of the gear case is in the "N"
(Neutral) position.
The cutout (1) of the shift rod (2) spline area should
face the cruising direction (3).
Hold the propeller shaft securely with the special tool,
and tighten the puller bolt of the special tool to the
specified torque.
TOOLS:
Puller bolt (1)
Puller jaws (2)
TORQUE:
Turn the vertical shaft clockwise 5 – 10 times to seat the
bearings.
Attach the special tool to the vertical shaft (1) as shown,
adjust the dial indicator (2) so its needle is at the line "2"
of the backlash indicator tool.
TOOLS:
Backlash indicator tool (3)
Backlash indicator
attachment (4)
Turn the vertical shaft lightly right and left and record
the dial indicator reading.
Measure the backlash at four points (by turning the
vertical shaft in increments of 90°) in the same manner.
• When measuring the backlash, do not turn the
propeller shaft by turning the vertical shaft.
07SPC-ZW0011Z
07SPC-ZW0010Z
5 N·m (0.51 kgf·m, 3.7 lbf·ft)
07SPJ-ZW0030Z
07WPK-ZW50100
GEAR CASE (STANDARD ROTATION)
(1)
(3)
(2)
(1)
(1)
90° 90°
90° 90°
(3)
(2)
(2)
(4)
16-45