THEORY OF OPERATION - CONTINUED
ELECTRO-HYDRAULIC SYSTEM - CONTINUED
Tilt Linkage Rotary Position Sensor.
Tilt linkage position sensor is an implement ECM input which continuously communicates tilt linkage
position to ECM. ECM uses input from both lift linkage sensor and tilt linkage sensor to control tilt kick-
out. ECM uses sensor input to cushion tilt linkage stops. This position sensor has one input connection to
ECM at connector contact J2-33.
Tilt linkage position sensor is a PWM sensor. When ECM receives PWM signal, it measures duty cycle to
determine joystick position. When tilt linkage is at full tilt back position, duty cycle should be no less than
90 percent. When tilt linkage is at full dump position, duty cycle should never be below 10 percent. Fre-
quency of this sensor signal is constant at approximately 500 Hz. Machine electrical system provides +bat-
tery voltage to tilt linkage position sensor for operating power.