Fuel Pump Assy. - Assembly - Rotax 915 i A series Maintenance Manual

Step Procedure
NOTE
Engine is still turned off.
22
Let the fuel pumps run for a minute.
23 Check if fuel is leaking out of the system.
If a leakage occurs, fix that problem be-
fore going on.
24 Install fuel pump cover (pos. 4) using 4
Allen screws M5x12 (pos. 7). Tightening
torque 6 Nm (55 in. lb.).
Leakage check
Step Procedure
1 Block the OUTLET of the fuel pump as-
sembly with suitable connector.
2 Connect the INLET of the fuel pump as-
sembly to a differential pressure gauge.
3 Apply 6 bar (87 psi) to the fuel pump
assembly.
4 NO pressure loss is allowed on the differ-
ential pressure gauge.
5 Submerge the pressurized fuel pump as-
sembly in a suitable fluid, e.g. fuel, univer-
sal solvent.
6 If any air bubbles are present at rubber
hose connections, replace the clamp and
ensure proper crimp. An extra clamp of
each size is provided in the service kit.
NOTE
Assemble with clean parts only in a clean
environment!
NOTE
Ensure that check valves and fuel pumps re-
main in original orientation.
Effectivity: 915 i A Series
Edition 0/Rev. 0
BRP-Rotax
MAINTENANCE MANUAL HEAVY
Figure 11.74: Leakage check
Air compressor
1
Outlet (to engine)
3
FUEL PUMP ASSY. — ASSEMBLY
Step Procedure
1 Fix the fuel pump unit in the housing with
4 hex. nuts M6.
Tightening torque 10 Nm (89 in. lb.)
Figure 11.75
1 Hex. nut M6
Fuel pump unit
3
Differential pressure
2
tester
2 Housing
73–10–00
Page 41
August 01 2018