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The Raymarine A18083 replacement belt is a spare part specifically designed for the WheelPilot 4000 mk2 autopilot. It is essential for transmitting power from the wheel drive unit, ensuring proper operation and accurate course-keeping.

The A18083 belt transmits power to the WheelPilot 4000 mk2 autopilot, enabling the wheel drive unit to operate correctly and maintain heading accurately. A belt in good condition is critical for optimal device performance.

Yes, the A18083 belt is an original replacement part from Raymarine. Using original parts ensures compatibility, reliability, and the expected performance with your WheelPilot 4000 mk2 autopilot.

The part number for this replacement belt is A18083.

This replacement belt (reference A18083) is exclusively compatible with the Raymarine WheelPilot 4000 mk2 autopilot. It is specifically designed to fit this wheel drive unit.

No, this belt is specifically designed for the Raymarine WheelPilot 4000 mk2 and is not compatible with other Raymarine autopilot models. Using an incompatible belt may cause malfunctions or damage to the device.

To replace the A18083 belt, you will mainly need a 3 mm Allen key to unscrew and tighten the screws on the support plate and the clutch button.

Remove the wheel drive unit from the steering wheel. Disengage the clutch. Remove the front cover by pulling it upward and away from the rear cover. Use a 3 mm Allen key to unscrew and remove the two mounting plate screws, then remove the mounting plate.

Once the support plate is removed, you can lift the drive belt over and past the toothed belt pulley, then remove it from the drive ring.

Start by installing the belt around the drive ring. Rotate the clutch eccentrics to maximize the space between the machined pulley and the clutch eccentrics. Then, install the belt around the belt pinion.

Install the mounting plate onto the clutch eccentrics and the gearbox shaft, ensuring it is fully seated. Then insert and tighten the two screws using the 3 mm Allen key.

Align the arrow inside the front cover with the arrow on the drive ring. Then press firmly all around the front cover to secure it firmly to the drive unit.

Yes, it is essential to adjust the clutch after replacing the drive belt. This step ensures the unit operates correctly and the belt does not slip.

The clutch is correctly adjusted when the drive ring can rotate freely when the clutch is disengaged, and the drive belt does not slip when the clutch is engaged and the engine is running.

Engage the clutch. Use a 3 mm Allen key to loosen the clutch button screw by about 2 turns counterclockwise. Turn the clutch button 4 notches clockwise to tighten it, or 4 notches counterclockwise to loosen it. Use the Allen key to retighten the clutch button screw. Check that the wheel still moves freely with the clutch disengaged. If not, reduce clutch tension by 2 notches counterclockwise and check again. Verify drive operation with the clutch engaged.

If the wheel does not move freely with the clutch disengaged after the initial adjustment, you must reduce the clutch tension by turning the clutch knob 2 notches counterclockwise, then check the wheel movement again.

This procedure is generally sufficient to correct a slipping or dragging drive belt. However, in some cases, it may be necessary to repeat the steps to further adjust the clutch and achieve the desired performance.

The most important precaution is to ensure the clutch is correctly adjusted after installing the new belt. Improper adjustment can cause the belt to slip or prevent the drive ring from turning freely, affecting autopilot performance.

Yes, the A18083 replacement belt comes with detailed installation instructions for the 4000 mk2 Wheel Drive, guiding you through each step of the replacement and clutch adjustment process.

During installation, ensure the belt is correctly positioned and tensioned around the drive ring and the belt pulley. It is crucial to rotate the clutch eccentrics to create maximum clearance before placing the belt on the pulley, to ease fitting and ensure proper tension.