Belt Tensioning; Air Filter - Beta Marine Beta 10 Operator's Maintenance Manual

BELT TENSION
40 AMP ALTERNATOR
WARNING
Belt tension must only be checked
with the engine switched off.
(1) The Mini Series range of engines
are normally fitted with a single
belt to drive the 40 amp battery
charging alternator and the fresh
water circulating pump.
65 AMP ALTERNATOR (OPTION)
The same method, as outlined above
applies, but final tensioning must be
by hand only. Over tensioning will
cause premature failure of
components
AIR INTAKE FILTER
These engines are fitted with an air intake filter which should be checked every season and changed every 2 years or
sooner if badly clogged.
1
(2) The belt tension is adjusted by
swinging the alternator outboard
as it pivots on its power support
bolt.
(3) With the engine stopped, loosen
the support bolts and the link
adjusting bolt.
(4) Push alternator outboard to
tension and tighten link bolt.
2
13
Check that the depression of the
belt at position shown is
approximately
when pushed down firmly by
thumb. Tighten support bolts.
(5) Belt tension should be regularly
checked especially during the first
20 hours of running in a new
belt, as stretching occurs.
Link adjust bolt
Support bolt
1 / " or 12 mm
2
3