RDG603A9 - Issue 1 - Shire 14 Workboat Owners Manual 30, 40, 50
Page 27 of 40
Note: if the belts are over tightened alternator bearing failure will occur.
9. Belt Maintenance
Do not allow oil to contact the belt. Oil attacks the construction of the belt, reduces
the drive efficiency, and will ultimately cause, it to fail prematurely.
Replace the belt, if it cracks; splits or as the adjustment nears the limit of its travel.
Note: Some boat builders may remove one or more of the alternators during the
installation of the engine. It is essential that when the alternators are re-fitted that the
alignment is perfect or premature belt wear will occur.
10. Belt Replacement
Ensure that you have the correct new belt prior to starting this procedure (some
engines may have been fitted with non-standard optional alternators which may not
have the belt sizes listed. Make a note of belt size on 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 seawater pump (may not be required, depending on seawater pump
option fitted).
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 pulley
“V”s check it is correctly seated in the
pulley.
Replace seawater pump (if required).
Re-tension the belt as above.
Note: Some engines maybe fitted with a side mounted belt driven seawater pump.
Similar belt tightening procedure will apply for this
.
CAUTION:
REMOVE THE IGNITION KEY BEFORE WORKING IN ENGINE COMPARTMENT.
