RDG603A27
– Issue 6
Page 44 of 59
Shire 70 WB:
Ensure the ignition key is removed before replacing any belts.
Turn the battery master switch to the off position before replacing any belts.
Ensure that you have the correct replacement belts before starting this procedure.
Some engines may have been fitted with non-standard optional alternators which may
not use the belt sizes listed. Make a note of these belt sizes upon delivery.
Loosen the top adjuster bolts and the lower mounting pivot nut and bolt.
Push the alternator towards the engine to loosen the belt.
Remove the belt.
Hold the belt in position over the top alternator pulley. Rotate the engine if required by
hand, to guide the new belt into the “vee”.
Replace the seawater pump (if required).
Re-tension the belt as above.
Shire 85 WB:
Ensure the ignition key is removed before replacing any belts.
Turn the battery master switch to the off position before replacing any belts.
Insert a ½” drive “T” bar into the square recess of the automatic tensioner.
Pul lever bar in anti-clockwise direction to slacken off the belt.
Remove the belt.
Pull lever bar anti-clockwise again and refit the belt.
Check the belt is fitted correctly into all of the pulley grooves.
The tensioner brace bar will need to be removed before the old belt can be
removed. Refit the tensioner brace bar after the new belt has been fitted.