d05785.fm
INSTALLATION MANUAL
BRP-Powertrain
Effectivity: 912 i Series
Edition 1/Rev. 0
75-00-00
Page 8
January 01/2012
2.1) Cooling system requirements
Safety
Coolant hoses See Fig. 4.
NOTE: Aluminium tubes with an inner diameter of 25 mm (0.98 in.)
can be used instead of longer hoses. These must have a
bulge (1) in order to prevent coolant hoses working loose.
Note as well that this will double the number of hose clips
required!
- Temperature resistance, min. 125 °C (257 °F)
- Pressure durability:min. 5 bar (72 psi)
- Inner diameter: 25 mm
- Bending radius: min. 175 mm (6.89 in.) (except moulded hoses)
- Material: 100 % resistant to glycol, antifreeze and ozone.
Graphic Drawing aluminium tube
Fig. 4 09158
Non-compliance can result in serious injuries or death!
The cooling system must be designed so that the op-
erating limits are not exceeded.
To minimize flow resistance, use radiators that have
both a parallel flow and have a low flow resistance. A
prime example would be the GENUINE-ROTAX radia-
tors. Be sure to use short hoses and pipelines.
All components of the cooling system must be suitably
secured.
Hoses exposed to direct heat radiation from the ex-
haust system, must be suitably protected with heat-re-
sistant protection tubes, for example.
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