Rotax 915 i A series Maintenance Manual page 469

ATTENTION
For this test, compressed air at approx. 2 bar (29
psi) and a testing device are needed.
Testing device consisting of:
• 2 pressure gauges
• 1 orifice jet (inner diameter = 1 mm (.039 in.) /
length = 3 mm (.12 in.)
• 1 connecting nipple M12x1.5 for the thread in the
middle section of the turbocharger
• 1 cover plate for the oil outlet
• connecting hoses (as required)
Step Procedure
1
Screw in the connecting nipple and close
the oil outlet with the cover plate.
2 Connect the pressure gauges together
with the regulating valves.
3
Apply a constant pressure of 2 bar (29
psi) to the connection cable. The pres-
sure drop must not exceed 50%. (From 2
bar (29 psi) to max. 1 bar (14.5 psi))
NOTE
For optimum results, the position of the shaft
should always be changed slightly during the
check, i.e. the shaft should be moved back-
wards and forwards in axial and radial
directions.
Effectivity: 915 i A Series
Edition 0/Rev. 0
BRP-Rotax
MAINTENANCE MANUAL HEAVY
Figure 21.18
WASTEGATE REGULATOR ASSY. —
INSPECTION
• General visual inspection. See for other tests
(leakage test) section 05-00-00 and 12-20-00 in
the corresponding Maintenance Manual Line for
the 915 i A Series engine type.
78–20–00
Page 11
August 01 2018