73
Repair - lower gear housing, sailboat drive
Marking pattern
52. When the correct gear flank clearance has been
obtained, remove tool 884753 from the lower gear.
Then turn the tool so that the “teeth” (A) face out-
wards. Fix the tool with two screws to the lower gear
housing.
Press the vertical shaft in with tool no. 884766 which
is screwed to the other tool. Leave tool 884264 or
884830 in place.
Then disassemble the propeller shaft and apply mark-
er dye to the gear wheels.
53. Install the propeller shaft again and turn it round in
both directions.
Brake the propeller shaft strongly.
NOTE! Press the vertical shaft in with tool no. 884766
at the same time as it is turned round.
54. Disassemble the propeller shaft and check that
the marking pattern on the gear teeth corresponds
with the marking pattern in the illustration above or the
figures in items 55 and 56.
55. If the marking pattern is displaced in relation to
the figure above, the thickness of the shims under-
neath the front bearing race must be reduced and the
thickness of the shims behind the bearing race in the
rear bearing housing must be increased to the same
extent. It is important that the preload is not changed.
NOTE! In this case, the propeller shaft is displaced
forwards (towards the pinion), which reduces flank
clearance. For this reason, it is necessary to install
tool no. 884753 and tighten the upper nut a bit more
until correct flank clearance has been obtained.
Please refer to items 50 and 51. Then check the con-
tact patch again, as in items 52-54.
884766
884753
884766
A
884264
884830
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