page 50
July 01/2008
Effectivity: 914 Series
Edition 2 / Rev. 0
d04277
INSTALLATION MANUAL
BRP-Rotax
12.6) Requirements on the cooling system
■ CAUTION: All components of the cooling system have to be secured suitably.
▲ WARNING: The size and layout of the cooling system must be designed to keep
the heat of the operating temperatures within the specified limits.
To minimize flow resistance employ a radiator with low flow
resistance and parallel flow as realized on the original BRP-Rotax
radiator and use short hoses and pipelines.
Coolant hoses:
- temperature durability: min. 125 °C (257 °F)
- pressure durability: min. 5 bar (73 p.s.i.)
- nom. inside dia : 25 mm (1")
- bending radius: min. 175 mm (7")
- material: Suitable for 100 % Glycol and antifreeze agents.
■ CAUTION: All hoses which are exposed to the radiated heat from the exhaust
system have to be shielded in an appropriate way (i.e.: with a heat
resistant hose).
◆ NOTE: Instead of long hoses, aluminium pipes may be used (inner
diameter 25 mm (1")). These should come with a bead (1) to avoid
loose coolant hoses.
Fig. 18
09158
1
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