Cooling System - Cushman Turf Truckster Parts & Maintenance Manual

6 MAINTENANCE
6.7

COOLING SYSTEM ________________________________________________________

This vehicle is equipped with a radiator, temperature
controlled fan, temperature gauge and an overheat
buzzer.
!
WARNING
To prevent serious bodily injury from hot coolant or steam
blow-out, never attempt to remove the radiator cap while
the engine is running. Stop the engine and wait several
hours until it is cool. Even then, use extreme care when
removing the cap.
!
CAUTION
Do not pour cold water into a hot radiator. Do not
operate engine without a proper coolant mixture.
Install cap and tighten securely.
!
WARNING
The cooling fan is controlled by a temperature switch and
may start at any time coolant temperature is above 150°
F (65 ° C), even with the ignition switch in the OFF
position. Do not attempt to service the cooling system
without first disconnecting the negative battery cable or
removing the fan fuse.
NEVER add straight antifreeze to the radiator. Mix equal
amounts of clean water with ethylene glycol based anti-
freeze in a separate container before adding it to the
cooling system. Do not use a mixture of more than 50%
antifreeze.
Always recycle or dispose of used antifreeze in a
responsible manner. Used antifreeze can be harmful to
the environment.
1. Check coolant level daily. Radiator should be full and
recovery bottle should be up to the cold mark.
a. Tilt engine cover forward to gain access to the
radiator.
b. With the engine stopped and cool, remove
radiator cap and check coolant level. The coolant
level should be at or within 1/4 in. (6 mm) of the
filler port. Fill with a 50/50 antifreeze/water
mixture if required.
c. Visually check the reservoir tank. Coolant level
should be at or above FULL line but less than 4
in. (102 mm). Add a 50/50 antifreeze/water
mixture if required.
2. Drain and refill cooling system every 400 hours or 9
months, whichever comes first. Allow system to cool
before draining.
GB-18
a. Remove the cooling fan fuse
b. Remove the radiator cap.
c. Open the engine block drain and the radiator
drain. Remove lower radiator hose. Close both
drains and install lower radiator hose once
system has completely drained.
d. Empty and clean the recovery bottle.
e. Fill radiator to the bottom of the filler neck with
50/50 antifreeze/water mixture.
f. Fill recovery bottle to full mark with 50/50
antifreeze/water mixture.
3. Keep radiator air passages clean. Use compressed
air (30 psi maximum) to clean the fins. Water left
between the fins will collect dirt and reduce the
amount of air flow to properly cool the engine.
4. To provide proper air flow, do not obstruct the air
intake screen on the right side of the vehicle. Keep
screen clean.
5. Check and tighten the fan belt. Replace clamps and
hoses every two years.
6. If you have to add coolant more than once a month,
or add more than one quart at a time, have a
authorized Jacobsen Dealer check the cooling
system.