User manual

Table Of Contents
Connector Alignment
All of the cables and connectors are keyed to indicate the correct orientation. The
“thumb bump” on the outside of the cable connector cowl should always be aligned with the thick
pin (or socket) on the bulkhead connector. If the connectors are not properly aligned and are
forced together, you can permanently damage the sockets resulting in damage to the electronics,
peripheral component or both.
Note that the large pin is
aligned with thumb bump
Figure 4-1: Cable Connector Alignment
Nylon and Stainless Steel Hardware
Nylon hardware is used in the MMP because it is light, strong, and does not corrode.
Maintenance requires fresh water rinsing after recovery. Do not over tighten the nylon hardware
as the threads are easily stripped and the heads of screws and bolts can twist off the shaft when
excessive torque is applied. The flat head bolts that secure the MMP skin can pull right through
the skin if they are over-tightened. The MMP Toolkit contains spare screws and bolts.
NOTE
Do not force the nylon bolts. Nylon absorbs water and swells slightly when immersed, therefore,
the screws and bolts will be tighter when the MMP is recovered. The swollen screws and bolts
will respond to a slow, steady turn and should not be forced.
The socket head cap screws securing the controller and motor housing end caps are 316
stainless steel. They are more robust than the nylon hardware, but they should still not be over-
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