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Installation
Twin Disc, Incorporated
5.
Transfer the bracket hole pattern and drill the 22mm (0.875") mounting
holes in the transom. Stainless steel 19mm (0.75") diameter bolts, nuts
and washers are required for this installation. Install the bolts, backing
plate, washers and nuts. Torque nuts to 122 N-m (90 ft.-lbs). Use thread
lubricating compound to prevent seizing. Apply a generous layer of
marine transom sealant under the bracket, and in the fastener holes in
the transom to prevent water leakage.
Figure 24. Transom Layout Dual Drive
Arneson Surface Drive Service Manual #1020619
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