Coolant - Rotax 915 iSc 3 A Installation Manual

Aluminium tubes with an inner diameter of 25 mm (0.98 in) can be used instead of longer
hoses. These should 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.
The material of the hoses must be resistant against glycol, coolant and ozon.
Interface Parameter
Temperature resistance
Pressure durability
Inner diameter
Bending radius
Figure 8.9: Aluminium tube
Hoses Hoses exposed to direct heat radiation from exhaust system must be suitably protected
with e.g. heat resistant protection tubes.
The hose between the overflow bottle and the expansion tank should be as short as
possible.

COOLANT

Effectivity: 915 i A Series
Edition 0/Rev. 0
BRP-Rotax
INSTALLATION MANUAL
1 bead
Use only coolant as recommended in the current Operators Manual.
Min.
125 °C (257 °F)
5 bar (72 psi)
25 mm (1")
175 mm (6.89 in)
ATTENTION
Max.
75–00–00
Page 11
December 01 2017