Sea Water Pump, Heat Exchanger - Beta Marine Beta 10 Operator's Maintenance Manual

FILLING THE FRESH WATER SYSTEM
New engines are supplied with the fresh water 'coolant'
drained off. The following instructions must be followed to
fill the system.
a) Pour into a clean bucket a mixture of both fresh water
and anti-freeze; with an anti-freeze ratio of 50% (see
next page). For the required volume see technical
specification page 4.
b) Check that the coolant drain tap or plug is turned off.
See photo 44.
44
c) Fill engine with freshwater / anti-freeze solution
through the top of the heat exchanger or header tank
with the filler cap removed. See photo 45.
45
d) Fill header tank to the top of the filler neck and
replace cap. Press down firmly on filler cap and hand
tighten in a clockwise direction.
Note: For keel cooled engines a large quantity of coolant
(anti-freeze solution) is required depending upon the size
of the keel cooling tank (refer to builder's instructions).
(e) Run the engine for 5 minutes on no load (out of gear)
(f) Check system for leaks.
Note: For keel cooled engines it is very important to bleed
all of the air out of the complete cooling system before the
engine is run on load (check with builder's instructions).
(g) If a calorifier is fitted care must be taken to see that
(h) Run the engine on one third load for 15 minutes,
TO AVOID PERSONAL INJURY!
Removal of the pressure cap when the engine is hot can
cause severe injury from scalding hot water under
pressure. Always allow the engine to cool and then use a
large cloth when turning the cap anti-clockwise to the
stop. This allows the pressure to be released. Press firmly
down on the cap and continue to turn anticlockwise to
water / antifreeze
release the cap.
goes in here
(i) Repeat (h) if coolant level is more than 1 inch below
(j) Run engine on
(k) Anti-freeze solutions should be drained off every
Note: When draining fresh water system, ensure the
engine has cooled sufficiently to prevent scalding from hot
pressurised water. Prior to draining a cold engine, remove
the filler cap from the header tank and then open the
water drain tap. This allows the water to drain freely from
the system.
38
and check coolant level, this will help remove air from
the system. Top up as necessary.
this is also full of coolant and all the air is expelled.
(See calorifier fitting notes under Section 1).
preferably with the boat tied up. As the system warms
up coolant may be expelled from the overflow pipe
into the bilge. Stop the engine and allow the engine
to cool down before removing the pressure cap and
top up the coolant to 25 mm / 1" below the filler
neck.
CAUTION:
the base of the filler neck when the engine has cooled
down.
2
/ full load for 20 minutes, check for
3
leaks and repeat (i).
2 years and replaced with a new solution.