Special tools............................................................................................................................................3

Service products .....................................................................................................................................4

System description .................................................................................................................................6

General note .........................................................................................................................................6

Sensors ................................................................................................................................................6

Actuators and indicators.........................................................................................................................6

Safety instruction...................................................................................................................................7

Maintenance .........................................................................................................................................7

Removal ..................................................................................................................................................8

Manifold pressure sensor (MAPS_1/MAPS_2) — removal........................................................................8

Oil pressure sensor (OPS) — removal ....................................................................................................9

Ambient air pressure/temperature sensor (AAPTS) — removal .................................................................9

Pressure control valve (PCV) – removal ................................................................................................10

Manifold temperature sensor (MATS_1+MATS_2) — removal.................................................................10

Exhaust gas temperature sensor (EGT1/EGT2/EGT3/EGT4) — removal................................................. 11

Oil temperature sensor (OTS) — removal..............................................................................................12

Cylinder head temperature sensor (CTS) — removal .............................................................................12

Knock sensor — removal .....................................................................................................................13

Crankshaft position sensor assy. (CPS_1, CPS_2) — removal................................................................14

Throttle potentiometer (TPS) — removal ...............................................................................................15

Pressure sensor (BPS) — removal .......................................................................................................15

Injection valve (INJ) — removal ............................................................................................................16

Governor — removal ...........................................................................................................................16

Double ignition coil — removal .............................................................................................................16

Fuel pump — removal..........................................................................................................................16

Inspection .............................................................................................................................................17

Sensors and actuators inspection/measurement ....................................................................................17

General test procedure ........................................................................................................................17

General resistance measurement .........................................................................................................17

Resistance measurement (temperature sensor).....................................................................................17

Voltage measurement..........................................................................................................................18

Current measurement..........................................................................................................................19

Manifold pressure sensor (MAPS_1, MAPS_2) — inspection..................................................................19

Boost pressure sensor (BPS) — inspection ...........................................................................................20

Oil pressure sensor (OPS) — inspection ...............................................................................................20

Manifold temperature sensor (MATS_1/MATS_2) — inspection ..............................................................21

Oil temperature sensor (OTS) — inspection ..........................................................................................21

Cylinder head temperature sensor (CTS) — inspection ..........................................................................22

Exhaust gas temperature sensor (EGT 1, EGT 2, EGT 3, EGT 4) -

inspection ...........................................................................................................................................22

Knock sensor (Knock) — inspection......................................................................................................22

Crankshaft position sensor (CPS_1/CPS_2) — inspection......................................................................23

Throttle potentiometer (TPS) — inspection ............................................................................................23

Effectivity: 915 i A Series

Edition 0/Rev. 0

BRP-Rotax

MAINTENANCE MANUAL HEAVY

Chapter: 76–70–00

SENSORS AND ACTUATORS

76–70–00

Page 1

August 01 2018