CPT CPT Operation Manual Download Page 2

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Version 14

Operation of the CPT Autopilot

The CPT is an extra crew member to man the wheel, day or night, rain or shine. It is amazing to take your hands
off the wheel and experience the freedom the CPT provides.

Always remember to maintain a proper look-out:

Warning!

Do not use the CPT in traffic or in waters where navigation is restricted!

An autopilot is NOT a substitute for good seamanship. Always maintain a permanent watch by the helm.

INTERNATIONAL REGULATIONS FOR PREVENTING COLLISIONS AT SEA, 1972 (72 COLREGS)

Part B - Steering and Sailing Rules

Section 1 - Conduct of Vessels in any Condition of Visibility

Rule 5 - Lookout

Every vessel shall at all times maintain a proper look-out by sight and hearing as well as by all available means appropriate

in the prevailing circumstances and conditions so as to make a full appraisal of the situation and risk of collision.

WARNING!

KEEP CHILDREN & PETS AWAY FROM

THE CPT BELT.

MANUFACTURED AND SOLD DIRECT BY

CPT AUTOPILOT INC.

7960 B Soquel Drive, #114, Aptos, CA 95003 USA

www.cptautopilot.com

email:

[email protected]

Summary of Contents for CPT

Page 1: ... MANUAL Operation Dockside checkout Sea trials Maintenance Troubleshooting Specifications MANUFACTURED AND SOLD DIRECT BY CPT AUTOPILOT INC 7960 B Soquel Drive 114 Aptos CA 95003 USA www cptautopilot com email info cptautopilot com ...

Page 2: ...ent watch by the helm INTERNATIONAL REGULATIONS FOR PREVENTING COLLISIONS AT SEA 1972 72 COLREGS Part B Steering and Sailing Rules Section 1 Conduct of Vessels in any Condition of Visibility Rule 5 Lookout Every vessel shall at all times maintain a proper look out by sight and hearing as well as by all available means appropriate in the prevailing circumstances and conditions so as to make a full ...

Page 3: ...ermines proportionally how far to turn wheel rudder for corrections High settings turn boat s rudder more Low settings turn boat s rudder less Deadband Determines sensitivity to boat heading changes Use to adjust for sea conditions Low settings hold boat to a tighter heading Lowest setting allows approximately 1 heading range High settings allow the boat to steer within a wider heading range Setti...

Page 4: ...the drive pulley facing forward 7 Reverse mounting with the drive pulley facing aft 7 3 Sail Trim 7 A Boat Balance 8 B Beating 8 C Running 8 APPENDIX 9 4 Dockside Checkout 9 A Checking the Steering System 9 B Performing the Dockside Checkout 9 5 Keeping Watch 10 6 Sea Trials 10 1 Maintenance and Adjustments 12 A Belt Tension 12 B Drive Pulley and Clutch Maintenance 12 2 Connector Maintenance 13 3 ...

Page 5: ...ettings provides more sensitivity to heading changes high deadband settings provide less sensitivity when in swells and seas A deadband of 5 allows the boat to range approximately 10 to port or starboard The CPT s performance can be improved by careful tuning but continously adjusting the controls is not necessary Once you find the rudder and deadband settings that work best for your boat you ll u...

Page 6: ...en the deadband is set to the lowest setting which allows a dead range of about 2 s If the bow of the boat strays more than about 1 port or starboard the pilot will take corrective action with the 1 button when the boat is within that range there will be no response E Tacking Tack angles are approximate and will vary from boat to boat based on the magnetic environment rudder response You will have...

Page 7: ...gh enough to return the vessel to heading with just one or two pulses or corrections A boat may require a slightly higher rudder setting at low speeds than at higher speeds A sailboat may require a higher setting when running than when beating and a higher setting when sailing than when motoring Full Keel Boats A full keel boat with 3 4 turns lock to lock will typically use a rudder setting of 5 6...

Page 8: ... factory When reverse mounting the drivebox to the helm the rotation of the wheel drive pulley must be reversed so the wheel will turn the correct direction This is preset at the factory for your installation but can be easily changed Standard installations with the drive pulley facing forward 1 Turn CPT OFF While off push hold down the Starboard 1 10 buttons and the Port 10 button hold all three ...

Page 9: ...ail will suffice sail under jib alone In gusting conditions some boats particularly fin keel spade rudder boats and others with too much canvas spread will head up at every gust The main should be sheeted loosely enough so that it luffs as soon as the boat heads up With some boats the main should be left luffing slightly when on course This will allow the jib to push the boat off as drive from the...

Page 10: ...ing the Dockside Checkout 1 The belt should be installed on both pulleys 2 Disengage clutch Pull out on drive pulley while slightly turning wheel to disengage clutch pins Center the boat s rudder 3 Flip Sensor toggle to Standby 4 Check that 10 amp fuse or circuit breaker is in place in the red wire 12 volt line and power is available to the CPT 5 For testing turn Rudder Control On and set to 4 tur...

Page 11: ...o lowest setting allow 60 second warm up Steer the boat on a steady heading for 30 seconds engage the clutch toggle to HOLD HEADING Slightly turn the wheel to operate the clutch The autopilot should make corrections to port and starboard to keep the boat on a straight heading The rudder control must be set high enough so that only one or two pulses or wheel corrections are needed to keep the boat ...

Page 12: ...tons Push the 10 button two times for 20 s three times for 30 s Due to differences between boats heading adjustments are not exact check your ship s compass after settling on the new heading Make adjustments in increments until you are on the ship s compass heading you require Rather than pressing buttons repeatedly and over shoot your heading it s best to wait and allow the boat time to respond b...

Page 13: ...re often in severe or heavy use conditions If the autopilot will not be steering for awhile remove the belt from the small pulley hang it over the binnacle or wheel shaft This will lessen wear and prolong the life of the clutch when hand steering To service lubricate the clutch drive pulley 1 Loosen tension on the drive belt and remove belt from the small pulley Remove the two screws from the back...

Page 14: ...ding water See technical specifications 4 Wheel Pulley If preferred wax the wheel pulley to maintain gloss After a season check to make sure the wheel is still centered on the steering wheel and adjust if needed Do not over tighten J bolts See Installing Wheel Pulley or the pulley will distort over time 5 Factory Service It is recommended that the CPT be returned to the factory to have the waterti...

Page 15: ...and pulse frequently once per second in the same direction At the dock while the boat is stationary and unable to respond it is normal for the pilot to make a small correction every 10 seconds Try the test for basic circuit function below Continual turning one direction once per second while sailing or if the pilot steers on some headings but not others may also be an indication of magnetic interf...

Page 16: ... may get lodged behind the driveplate and cause a screeching sound behind the clutch Remove the clutch driveplate to remove the broken tip A worn clutch pulley with excessive hub wear will no longer rotate on center be wobbly transferring belt tension to the shear pins instead of the drive shaft shortening shear pin life contact us for a replacement pulley gear To prolong the life of the clutch an...

Page 17: ... set Rudder to 5 and Deadband to 3 After a minimum 60 second warm up toggle to Hold heading The clutch should be staitonary for a brief time and may make a small correction every 10 seconds Push the 10 port button once and the clutch should turn to port and then make corrections to port Push the 10 starboard button once and the clutch should rotate back to starboard and stop Slightly rotating the ...

Page 18: ...e Standard Cable Lengths Control box Cable 10 ft Power Cable 10 ft Part V Warranty The CPT is warranted for one year for defective parts and workmanship provided the unit is installed and used in accordance with our instructions and common sense as explained in the attached limited warranty card You are cautioned to keep children pets and fingers away from the belt that the CPT cannot see or hear ...

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