Flushing The Cooling System - Rotax MML-912 Maintenance Manual

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9.3)

Flushing the cooling system

General note
To flush the coolant the following steps are necessary:
Instruction
Step
1
2
3
4
Effectivity: 912 Series
Edition 2 / Rev. 0
BRP-Powertrain
MAINTENANCE MANUAL
Hot steam can cause scalds in the face and on hands!
WARNING
WARNUNG
Never open the radiator cap when the cooling system
is hot. For safety's sake, cover cap with a rag and open
slowly.
The system is flushed using pure water at a pressure of 2 bar (29 psi).
Where water-free coolant is used, the cooling system must be
NOTICE
drained of water correspondingly after flushing. The residual
water must not exceed the max. permissible limit prescribed
by the coolant manufacturer.
NOTES:
For the flushing, open the lowest located coolant hose (either
at water pump or radiator).
Refill newly mixed coolant into the expansion tank (highest point of the cooling
system). See chap. 12-10-00 section: 3.1).
Fit radiator cap.
NOTES:
Run the engine for a minute and replenish coolant as required.
Procedure
12-20-00
page 26
October 01/2009

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This manual is also suitable for:

912 uls 3912 series

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