Liquid Cooling System (Typical) - Polaris 1999 Sportsman 400 Service Manual

COOLING SYSTEMS
203
LIQUID COOLING SYSTEM (TYPICAL)
6-
- 3
!
/ 7
o
,' ,
!
U dJ
t
- 2
1. Coolant reservoir
2. Radiator
3. Rad iator to coo lant pump hose
4. Coolant pump
5. Cylinder head
6. Cylinder head to radiator ho se
7. Radiator to coolant reservoir hose
WARNING
Do not remm'e the radiator cap (Fig-
lire 2
J.
typical) when the engine is
hot. The coolant is
rei)'
hot and is un-
der pressure. Severe scalding could
result if the coolant comes in con fact
with e xposed skin and clothing.
To protect the eng ine coo ling system. keep the
sys tem filled with the correct mixture of ethylene
glyco l ant ifreeze-formul ated for use in aluminum
engines-and distilled, or purified, water.
Ma intain the co olant at the proper level as de-
scribe d in Cha pter Three, T he radi ator must be lu ll
an d the co olan t leve l should always be be tween the
m inimum and max imu m marks on the coo lant res-
ervoir (F ig u re 22). T he sys tem co nta ins only a
small amou nt of coo lant an d it is very imp ort an t
that it rema ins filled with the pro per so lution.
CAUTION
Drain and
flush
tile cooling system
at
least evel)' two years. Refill with a
mixture of ethylene glycol antifreeze
(formulated for aluminum engines)
ami purified wa ter: Do not reuse the