Fuel Pump Assy. Single Parts - Disassembly; Fuel Pressure Regulator Assy. - Removal - Rotax 915 i A series Maintenance Manual

Figure 11.18
1 Hex. nut M6
Fuel pump unit
3
FUEL PUMP ASSY. SINGLE PARTS —
DISASSEMBLY
NOTE
Fuel pump lines and hoses must be exchanged
every 5 years. Therefore ROTAX offers a fuel
pump service kit.
Disassembly of lines and hoses (every 5 years)
For understanding the position numbers see illustra-
tion "fuel pump single parts" at the beginning of this
section.
Procedure
Step
1 Remove 1-ear clamps (pos. 9, 11 and 13)
using a small flat screwdriver.
2 Remove pump bracket assy. (pos. 2).
3
Disassemble fuel hoses from pumps,
lines and check valves.
FUEL PRESSURE REGULATOR ASSY. —
REMOVAL
Preparation
• Carry out functional check, switch on both fuel
pumps. Fuel pressure on pilot display should
Effectivity: 915 i A Series
Edition 0/Rev. 0
BRP-Rotax
MAINTENANCE MANUAL HEAVY
2 Housing
show: 3.00 bar (43.5 psi) +/- 0.2 bar (+/- 2.9 psi)
(differential pressure to the intake manifold pres-
sure or intake air pressure)
Step Procedure
1 Drain the fuel. See relevant Maintenance
Manual Line Chapter 12-20-00 section
Planned maintenance.
2 Remove the return line to fuel rail 2/4 and
fuel pressure regulator and close them
with the appropriate caps.
3 Remove the cable ties and pull out the
hose.
4 Disconnect the plug connection to the
temperature sensor.
Figure 11.19
1 Cable ties
Temperature sensor
3
Step Procedure
5 Loosen the banjo bolt with gasket ring in
the pressure regulator housing.
2
Hose
73–10–00
Page 17
August 01 2018