Broom 35 European, Owner'S Manual

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D1
SECTION D
STEARNGEAR
Description
Each engine drives through a set of sterngear comprising the following:-
a) Flexible coupling
b) Stuffing box / shaft log
C) ‘A’ Bracket
d) Propeller
e) Shaft
a) Flexible Coupling
This is fitted to the inboard end of the propeller shaft by means of a tapered
keyway and an hexagonal nut and is in turn bolted to the gearbox output
coupling flange.
b) Stuffingbox / Shaft log
The stuffing box contains 3/8" graphite packing and is connected to the shaft
log by a flexible rubber hose. The shaft log is bonded to the hull and contains
a cutless rubber bearing which is lubricated by water taken off the engine
manifold.
Maintenance
The gland should never be over tightened but should be tight enough so as
to allow a drip of water to issue from the gland every 30 seconds
approximately. The graphite packing should be replaced every 12 months.
Approximately 2 ft. of 3/8" packing is used for each gland.
‘A’ Bracket
The ‘A’ Brackets are of cast bronze and are fitted with a cutless bearing
which is water lubricated.
Shaft
The shafts are of 1 ½" stainless steel and are threaded and keywayed at each
end. The length of each shaft can be found in the list of general information
on the inside front cover.
Propellers
The propellers are taper bored and keywayed and retained on the shafts by
a large brass doomed nut which is locked by means of a left hand thread
screw tapped directly into the end of the shaft.
Propeller size:- See general information list inside front cover.