Adjusting Engine Speed Sensor - Komatsu PC130-7 Shop Manual

TESTING AND ADJUSTING
ADJUSTING ENGINE SPEED
SENSOR
a If the engine speed sensor has been removed
and installed or its signal contains an error,
adjust it according to the following procedure.
a Remove engine speed sensor (1) before adjust-
ing it and check that its tip is free from steel chips
(The engine speed sensor is installed to the right
side of the flywheel housing).
1. Screw in sensor (1) until its tip touches the tooth
2 Threads: Gasket sealant (LG-6)
tip of flywheel ring gear (2).
2. Return sensor (1) by the specified angle.
a Returning angle of sensor: 1 ± 1/6 turn
a After this adjustment, clearance (a) between
the sensor tip and gear tooth tip is 1.25 –
1.75 mm.
3. Fixing sensor (1), tighten nut (3). 2 Nut: 49 – 68.6 Nm {5 – 7 kgm}
20-116
(1)

ADJUSTING ENGINE SPEED SENSOR

4. After finishing adjustment, check that the monitor
panel displays the engine speed normally in the
"Monitoring mode".
a For the operating method, see "Special func-
tions of monitor panel".
• Monitoring code: 010 (Engine speed)
PC130-7