Strut; Propeller Shaft - Four winns 248 Vista Owner's Manual

To prevent personal injury, keep away from the
propulsion machinery during its operation or when-
ever the boat is in motion. Movement of water
past a propeller can cause the propeller, propeller
shaft, and other propulsion machinery to rotate
even if that equipment is not being operated in-
tentionally.
Prop Shaft
Zinc Anode

Strut

Propeller Shaft

Assembly
Figure E3: Underwater Equipment
To prevent water from entering into the boat, al-
ways be sure the lock nuts are tightened secure-
ly to prevent the packing nuts from loosening.
DO NOT attempt to tighten the lock nuts without
the proper equipment to hold the packing nut sta-
tionary.
B. Strut
The strut secures the lower end of the propeller shaft.
Seasonal inspection of each strut should be made to in-
sure no damage has incurred and the strut bearing is not
worn excessively.
When the boat is removed from the water for winterization
or general maintenance, apply a light water proof grease
to the strut bearing (rubber sleeve in the strut) and the
shaft where it penetrates the strut bearing. This will keep
the strut bearing from drying out. Replace the strut bear-
ing should it become worn or cracked.
C. Propeller Shaft
NOTICE
When lifting the boat, always position the lifting
straps at the corresponding "sling" labels. Lifting
the boat with lifting straps over the prop shafts
will cause the shafts to become bent. Improper
lifting technique will not be covered under war-
ranty.
Vista™ Owner's Manual
The prop shafts of all our V-drive boats are aligned at the
factory. Prop shaft alignment should be checked by your
dealer during pre-delivery service. Shaft alignment should
be checked again forty-eight hours after initial com-
missioning. Periodic checks of shaft alignments, and
engine V-drive mounting bolts should be made; espe-
cially if noise or vibration occurs.
Excessive vibration, abnormal shaft log wear, or
broken propeller shaft coupling bolts are an indi-
cation of misalignment. Misalignment can also
Shaft Log
cause severe damage to shaft logs, struts,
Seal Assy.
shafts and the engine transmission or v-drive.
Realignment should only be performed by a quali-
fied service person. The following procedures
are provided so a boat owner can determine if
Log Shaft
service work is required.
The propeller shaft coupling and engine/V-drive output
flange coupling must be aligned to within 0.004 inches.
Always be sure the prop shaft is centered in the strut
bearing and shaft log before alignment adjustments are
made. Refer to Figure E4.
Coupling Alignment Procedure:
1. Boat must be in water for at least 24 hours before
alignment is started.
2. Check to be sure that the shaft can be turned with
one hand on the coupling.
3. Assure that all shaft coupling nuts and bolts are
installed but loose.
™
NOTICE
.004" Max
Figure E4: Coupling Alignment
Section E
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