Hunter e33 Operator's Manual page 192

WA R N I N G
!
Hot coolant under pressure may boil over and cause
burns or other serious injury when cap is removed.
Allow engine to cool. Open pressure cap slowly to
allow pressure to vent before removing cap.
14.4.2 Engine Coolant
See engine operating manual for recommended coolants
and correct procedures for checking and adding coolant.
14.4.3 Engine Exhaust
Visually inspect the engine and generator exhaust sys-
tems (hoses, joints, manifolds, etc.) for leaks. Make sure
all clamps are tight. Check hoses and exhaust boxes
for damage. Replace any damaged exhaust system
component.
Note: Any discoloration around a joint or gasket usually indi-
cates a leak.
14.4.4 Saildrive Oil
Refer to the saildrive manual for detailed recommenda-
tions about checking and adding oil.
14.4.5 Fuel Filter
For diesel engines, check all fuel filters daily to remove all
sediment and water from the filter. Inspect the canister
for possible corrosion or deterioration. Replace canister
if you observe any corrosion or other deterioration.
Replace the filter element at least once each season,
more often if there is contamination of the fuel system.
Always replace the bowl gasket each time the filter is
reassembled. Check carefully for any signs of leakage.
14.4.6 Fuel Line Connections
Check all fuel line connections for leaks at least once a
year. Tighten as necessary.
Important: Be careful when tightening fittings. Over-tightening
can crack the flair fittings and flair nuts. Use only tube wrench-
es when tightening connections.
Hunter e33 • Maintenance
14.4.7 Batteries
!
compartment or bilge. Also, avoid getting saltwater
the acid in the electrolyte with baking soda. Clean
up neutralized electrolyte with a disposable rag or
Although these batteries are relatively maintenance free,
some simple routine maintenance can increase the effec-
tiveness and life.
* Keep the batteries fully charged. Batteries kept fully
charged last longer than batteries kept at a partial
charge.
* Check the level of the electrolyte regularly. Correct
level is just above the plates. Add distilled water only if
necessary. Over-filling can cause poor performance and
early failure.
* Check the battery every 30 days. Keep the top of the
battery clean. When necessary, clean the top of the
battery with a baking soda solution and rinse with fresh
water.
Important: To prevent battery failure, do not allow the soda
solution to enter the battery cells.
* Inspect the cables and clamps regularly.
* Remove the battery cables and clean the battery ter-
minals and posts regularly. Use a wire brush or bronze
wool. After re-connecting the terminals, apply a coating
of grease or petroleum jelly (Vaseline) to protect them
against corrosion.
Important: Before cleaning the batteries, disconnect and
remove them from the boat.
* Replace corroded or damaged parts immediately.
* Remove the batteries from the boat during periods of
extended storage. Store the batteries in a cool (above
freezing), dry area.
All batteries lose some charge during storage, but the
14.6
WARNI N G
!
Avoid spilling battery electrolyte into the engine
on or in the battery. Either condition can create a
gas that is explosive and poisonous if inhaled. If
you spill electrolyte, ventilate the area. Neutralize
paper towel.
We recommend you use Gel type batteries.
!