Raymarine A18084 User manual

Clutch Kit (A18084) Installation Instructions Clutch Kit (A18084) Installation Instructions
Document number: 84105-3
Date: August 2001
3. Turn the clutch knobeither 4 clicks clockwise to tighten the
clutch, or4 clicksanti-clockwisetoloosen the clutch.
4. Use the allen key to re-tighten the clutch knob screw.
5. Check that the wheel still moves freely with the clutch off.
Note:If the wheel does not move freely, reduce the clutch tension by
turningthe clutchknob 2 clicks anti-clockwise and check again
6. Check the drive’s operation with the clutch engaged.
This procedure is usually sufficient to correct a slipping ordragging
drive belt. Insomecases, however,youmay need to repeat the steps
to adjust the clutch further.
4000 mk2 Wheel Drive
Clutch Kit (A18084) Installation Instructions
Introduction
Thisleafletexplainshowtousetheclutchkit(A18084)toreplacethe
clutch eccentric and/or roller onthe 4000 mk2 wheel drive.
Removing the clutch eccentric and roller
D5754-1
Clutch roller Clutch eccentric M5 x 30 mm screw
Parts supplied
D5752-1
Drive belt
Support plate
Support plate
screws (x2)
Clutch
eccentric (x2)
Belt pulley
Clutch
roller (x2)

Clutch Kit (A18084) Installation Instructions Clutch Kit (A18084) Installation Instructions
1. Removethe wheel drive from the wheel and release the clutch.
2. Remove the frontcover by pulling it up and away from the
back cover.
3. Remove the support plate:
•use a 3 mm allen key to unscrew and remove the 2 support
plate screws
•lever thesupport plate away from the backcover
4. Removethe clutch roller from the clutch eccentric.
5. Ifyou need to replace one ofthe clutcheccentrics:
•unscrew andremove the lever screw or ratchet knob screw
•pullthe lever orratchetknob offthe back cover
•thenremove the eccentric
Fitting the new clutch eccentric and roller
Tofitthenewclutcheccentricand/orroller,andreassemblethewheel
drive:
1. Fit the clutch eccentric (with its flange downwards), so it is clear
of the foul pin on the back cover.
2. Fitthe clutchroller over the clutch eccentric.
3. Fit the clutch lever or ratchet knob.
To fit the clutch lever:
•place the clutch leveronto the eccentric spindle (it should be
positionedbetweenthe two pipsonthe rear ofthe back cover)
•insert andtighten the clutch leverscrew
•check that the lever engages anddisengages the clutch
To fit the clutch ratchet knob:
•placethe clutch ratchet knobover the eccentricspindle
•insert andtighten the clutch ratchet knobscrew
4. Fit the supportplate:
•fit the support plateover the clutch eccentrics andgearbox
shaft, making sure the plate is pressed down fully
•insert andtighten the 2 screws
5. Fitthe frontcover:
•align thearrow on the inside of the front coverwith the arrow
onthe drive ring (seediagram on oppositepage)
•press all around the front cover to secure it tothe drive unit
6. Youmust nowadjust the clutch (see opposite page)
Adjusting the clutch
Youneed to adjust the clutch if you havereplaceda clutcheccentric
and/orclutch roller.
When the clutch is correctly adjusted:
•thedrive ring can rotate freelywhen the clutch is disengaged
•the drive belt does not slip when the clutch is engaged and the
motorisdriving
To adjust the clutch:
1. Engagethe clutch.
2. Use a 3 mm allenkey to loosenthe clutchknob screw about
2 turnsanti-clockwise.
Pre-drilled holes
(marked with arrow)
Pair of threaded inserts
(marked with arrow)
Drive ring
Front cover Drive unit D5404-1
23
1
D5750-1
Loosen the screw
(2 turns)
Tighten the screw
(2 turns)
To tighten
the clutch
(4 clicks)
To loosen
the clutch
(4 clicks)
Adjusting the clutch