Rotax 912 ULS 3 - Troubleshooting

page 50
May 01/2009
Effectivity: 912 Series
Edition 1 / Rev. 1
d04635
INSTALLATION MANUAL
BRP-Powertrain
◆ NOTE: When using EVANS NPGR, NPG+ or added pure ethylene
glycol as a coolant , note that these fluids have a flammability
rating 1 (classification LOW at a scale from 0 to 4). The
mentioned coolants are complying according to their material
safety data sheet with a flammability classification, which has
only low danger and a low risk of flammability. To date, no
cases in engine operation or flight operation, laboratory
conditions or from the field were reported, which show unsafe
conditions of ROTAX aircraft engines in combination with the
relevant coolants.
Marking of the coolant to be used
■ CAUTION: The coolant to be used and its concentration (percentage water
rate) must be communicated to the owner in the correct form.
Waterless coolant must not mix with water, as otherwise it will
lose the advantages of a high boilling point.
Fig. 23
00327
1
12.4) Check cooling system - Efficiency of the cooling system
For a measurement of the cooling system the maximum values for coolant exit
temperature and cylinder head temperature must be found. According to the
current specifications.
Example: EVANS NPG+. See Fig. 22.
1 Warning sticker
2 Radiator cap
3 Opening pressure information of radiator cap.
DO NOT
ADD
TO THIS SYSTEM
WATER
STOP!
EVANS NPG+
WATERLESS
COOLANT ONLY!
R
E
M
O
V
E
S
L
O
W
L
Y
DO NOT
ADD
TO THIS SYSTEM
WATER
STOP!
EVANS NPG+
WATERLESS
COOLANT ONL
Y!
T
U
R
N
D
O
W
N
T
I
G
H
T
R
E
M
O
V
E
S
L
O
W
L
Y
DO NOT
ADD
TO THIS SYSTEM
WATER
STOP!
EVANS NPG+
WATERLESS
COOLANT ONLY!
T
U
R
N
D
O
W
N
T
I
G
H
T
R
E
M
O
V
E
S
L
O
W
L
Y
T
U
R
N
D
O
W
N
T
I
G
H
T
07012
Fig. 22
3
1
2