BRAVO TWO GEAR HOUSING
SERVICE MANUAL NUMBER 28
90-863160 MAY 2000 Page 3C-37
21. Install and tighten bearing carrier retaining nut using retainer wrench until resistance to
propeller shaft rotation can be felt (to preload bearings).
22112
a
a-Bearing Carrier Retainer Wrench (91-17257)
22. Driven gear shimming:
a. Install dial indicator adaptor, backlash indicator rod and dial indicator as shown.
Ensure that dial rod is aligned with “II” on indicator rod.
22439
a
b
c
a-Dial Indicator Adaptor (P/N 91-83155)
b-Backlash Indicator Rod (P/N 91-53459)
c-Dial Indicator (P/N 91-58222A1)
b. Check gear backlash by lightly rotating drive shaft back and forth. Do not allow
propeller shaft to turn. Observe dial indicator. Reading should be .009-.015 in.
(.23-.38 mm).
c. If backlash is not correct, disassemble and proceed as follows:
If backlash is MORE than specified: ADD shim(s) under driven gear bearing cup.
If backlash is LESS than specified: REMOVE shim(s) under driven gear bearing cup.
d. Recheck backlash reading after reassembly.
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