CPT AUTOPILOT CPT, Installation Manual

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PAGE 12 OF 26
Reverse-Vertical Pedestal Mount
The motor box can be mounted to sit on either the Port or Starboard side of the
pedestal.
·
If the pedestal diameter is more than 3 ¾ ʺ , the reverse plate must be at least
8 ¾
ʺ
long for Port side mounting.
·
If the drive pulley is inside the perimeter of the wheel, 1 ʺ spacers must be
used between the spokes and the wheel pulley. Without the spacers, the drive
pulley will hit the wheel spokes when the clutch is disengaged.
Install Motor Box onto Pedestal Bracket and Reverse Plate
1.
Fasten the motor box bracket to the Reverse Plate using the four shorter #10
screws. Fasten the Reverse Plate to the bottom of the Pedestal Bracket using
any needed shims and the four longer #10 screws.
* If a shim is needed for aligning the belt with the wheel, it has been provided
based on the clearance between your spokes and pedestal (measured
5
ʺ /127mm out from the wheel center). Place the shim(s) between the reverse
plate and pedestal bracket (see diagram on following page).
2. Mount the motor box onto the motor box mounting bracket using the clamp
lever, washers and knurled thumbnut. Lock the clamping lever when the
slotted bracket is in the middle of its adjustment range—centered in the slots.
Loosely attach Motor Box and Bracket assembly to Pedestal
1. Hang the Motor Box and Reverse Plate/Pedestal Bracket assembly from the
belt and allow it to rest against the pedestal.
2. Attach the adhesive foam pads to the hose-clamps, not the pedestal. Pass the
hose-clamps through the slots from the inside of the bracket, around the
pedestal and loosely tighten. The hose clamps should face so that they can be
tightened from the Port side.
Align belt with wheel and tighten hose-clamps
1. Adjust the clearance from the pedestal:
·
For the Deep Pedestal Bracket, the belt should align with the wheel when the top edge of the stainless bracket is
2 ½
ʺ
(64mm) from most pedestals using any required shims.
·
For the Shallow Pedestal Bracket, the belt should align with the wheel when the top edge of the stainless bracket
is 1
ʺ (25mm) from most pedestals using any required shims.
·
The bottom edge of the pedestal bracket should be ⅛
ʺ
– ¼
ʺ
closer to the pedestal than the top edge to slightly
angle the bracket.
2. Temporarily tighten the hose-clamps enough to hold the assembly in position.
3. Check for alignment: hold a yardstick or straight-edge against the back of the wheel pulley; it should be fairly parallel
with the belt when viewed from the side (clutch engaged; pushed in). Also look from above the wheel and from the
side to be sure the motor box is square with the wheel from all directions and not at an angle. If the belt is not parallel
you can squeeze the stainless bracket deeper or shallower onto the pedestal as needed, or add or remove a shim. If in
doubt or your wheel is not uniform, favor the motor box being farther from the pedestal (rather than closer). The
slight belt slant will pull in on the clutch which will help keep the clutch engaged.
4. With high wheel loads or a pedestal diameter less than 4 ʺ , the hose clamps may not be enough to keep the bracket in
place. In this case you may use six #10-24 x ½" screws to fasten the pedestal bracket to the pedestal. Drill and tap the
pedestal for the screws.
Before drilling the pedestal: test the autopilot and perform sea trials to be sure the belt size is appropriate and the
bracket is in the desired location.