SEAL-WIPER 2330638 - Caterpillar

Illustration 1 g00498290
Location of the hoist control position sensorThe hoist control position sensor is located on the left side of the operator's seat. The hoist control position sensor is a Pulse Width Modulation position sensor. The hoist control postion sensor sends duty cycle signals to the Power Train Electronic Control Module (Power Train ECM).When the pulled unit hoist control is used, the hoist control position sensor sends an electrical signal to the Power Train Electronic Control Module (Power Train ECM). The Power Train ECM uses this signal to energize the appropriate pulled unit proportioning solenoid on the pulled unit control valve. These pulled unit propertioning solenoids will move the spool in the pulled unit control valve. This will cause oil to be sent to the pulled unit in order to move the hydraulics.The signal from the hoist control position sensor is also used to neutralize the transmission. The Power Train ECM will allow only a forward speed position or the NEUTRAL position when the hoist control position sensor is in the OPEN position. The Power Train ECM will not allow a shift to the REVERSE position until the hoist control position sensor has been moved from the OPEN position and the transmission shift lever is in the NEUTRAL position.Note: If the machine is in REVERSE and the hoist position sensor is in the OPEN position the Power Train ECM will shift the transmission to NEUTRAL. The machine will remain in NEUTRAL until the pulled unit hoist control is moved into the HOLD or the FLOAT position and the transmission control has been cycled through NEUTRAL.