MAINTENANCE
SECTION 5
Page 78 CMD-3967823 / 90-865237030 OCTOBER 2003
CE549
Fuel Tank Cleaning And Flushing
IMPORTANT: Diesel fuel should not be left in tank during winter storage, as an
accumulation of rust, sludge, and wax residue will form.
Refer to boat manufacturer’s instructions and clean fuel tank at specified intervals. Unless
specified otherwise, flush and clean diesel fuel tank every 1000 hours or 5 years, whichever
occurs first.
CE497
Drive Belts
All drive belts must be periodically inspected for tension and condition (excessive wear,
cracks, fraying, or glazed surfaces).
If any drive belts need replacement or tension needs adjustment, contact your authorized
Cummins MerCruiser Diesel dealer / distributor.
WARNING
Avoid possible serious injury. Make sure the engine is shut off and the ignition key
is removed before inspecting the belts.
Checking Serpentine Belt
1. The various components are shown.
79137
b
c
d
a
e
Typical
a-Water circulating pump pulley
b-Automatic tensioner pulley
c-Alternator pulley
d-Crankshaft pulley
e-Serpentine belt
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