STEERING SYSTEM 5540F/YB5515 SERVICE MANUAL
10-14 Published 10-21-2010, Control# 198-04
Sensor Operation And Spacing Checks
Checking Alignment and Operation
Both sensors must be working and spaced properly for the
steering mode selection to function properly.
Proper Operation Check
1. Using the outriggers, raise the crane. Shut off the engine
but leave the ignition key switch in the ON position to
energize the steering sensor circuit.
2. Remove the two tires (front and rear) on left side (cab
side) of the crane to obtain access to the steering
sensors.
3. Using a piece of metal, pass it within 1/8 inch (3,2 mm) to
7/32 inch (5,2 mm) in front of the sensor. A yellow light
Figure 10-13 will illuminate, indicating that the sensor is
functioning.
4. If the sensor is working properly, check the spacing
between the sensor and sensor bracket. Adjust if
necessary.
5. If the sensor is malfunctioning, replace it and adjust the
sensor spacing.
Sensor Spacing Check
1. Align the sensor bracket on the axle steering knuckle
with the sensor on the axle Figure 10-14.
2. Measure the distance between the end of the sensor
and edge of the sensor bracket. The sensor spacing
must be between 1/8 inch (3,3 mm) to 7/32 inch
(5,6 mm). If the spacing is incorrect, adjust the spacing
with the jam nuts on the sensor. Be sure they are
tightened after proper gap is obtained.
FIGURE 10-13
p1876
Sensor
Indicator Light
FIGURE 10-14
p1877
1/8 - 7/32 in
(3,1 - 5,5 mm) Gap
Sensor Spacing
Reference Only
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