Olympic HD3, Manual

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Olympic Drives & Equipment Sales Ltd.
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INSTALLATION INSTRUCTIONS:
1.0 MOUNTING THE OLYMPIC AZIMUTH DRIVE
1.1 Check strength of the hull where the Olympic Drive is to be mounted. Careful
consideration must be given to thrust force that will be applied in all directions to
hull bottom. Some form of reinforcing must be built into the hull around the
“Olympic” mounting ring to spread thrust force and reduce any “oil can”
movement in bottom plate. Reinforcing, of course, will depend on design of
vessel but has in the past taken the form of extra structural stiffeners and frames
built in around drive ring or extra heavy bottom plates installed between frames
where mounting ring is positioned
1.2 Locate exact position of mounting ring in hull. First, bolt mounting ring to the
Olympic flange (leave out neoprene gasket) and lower the whole assembly into
the hull. Position the Olympic Drive assembly so the drive input shaft is: (1)
parallel with engine PTO output shaft and (2) centered slightly offset from engine
PTO output shaft. The best offset dimension range will give a universal drive
shaft angle of 3 degree or less (a slight angle is required to allow the universal
roller bearings to roll and self lubricate). The drive shaft will efficiently work with
an angle up to 5 degrees, but its life span will be reduced.
Tack weld ring in position, unbolt and remove the Olympic Drive and complete
welding of the ring to the hull using good welding practice to ensure the ring does
not warp.
Note: refer to attached drawing (B-0440) on the drive shaft alignment
1.3 Fit neoprene seal (supplied with the “Olympic Drive”) to drive mounting flange
using a good grade of bedding compound.
1.4 Carefully lower the Olympic Drive into mounting ring so that bolt holes line up
and input drive shaft lines up with the center line of engine crank shaft.
1.5 Bolt the Olympic D
rive to mounting ring using ½” x 1 ½” N.C. grade 8 cap screws
with flat and lock washers. Tighten them evenly to prevent distortion to drive
flange to a torque of 80 to 85 ft. lbs.