- Power Train electronic control module (ECM)
- Transmission direction and speed control lever
- Transmission direction control switch
- Downshift switch
- Solenoids
- Left Brake Pedal Position Sensor
- Parking brake switch
- Dash panel cluster
- Speed sensors
- Autoshift switch
- Messenger
- Engine ECM
- Data Link connector
- Fuse panel
Power Train ECM
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| Illustration 1 | g00934508 |
The power train ECM (1) is an environmentally sealed unit. The power train ECM is mounted under the cab on the right side of the machine. The power train ECM is protected by a cover that must be removed in order to obtain access to the power train ECM.
Transmission Direction and Speed Control Lever
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| Illustration 2 | g00934273 |
The transmission direction and speed control lever (2) is mounted on the steering column.
Transmission Direction Control Switch
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| Illustration 3 | g01441902 |
The transmission direction control switch (3) is mounted on the lift control lever.
Downshift Switch
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| Illustration 4 | g01441903 |
The downshift switch (4) is located on the lift control lever.
Solenoids
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| Illustration 5 | g00888652 |
The solenoids (5) are installed on the modulating valves (6). The solenoids receive a signal from the power train ECM in order to energize the solenoid. When the solenoid energizes, the spool of the modulating valve moves in order to direct pressure oil to the clutch. The distance of spool movement is proportional to the strength of the signal that is sent to the solenoid by the power train ECM.
Position Sensor (Left Brake Pedal)
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| Illustration 6 | g00779650 |
Position Sensor (Left Brake Pedal) | |
The position sensor for the left brake pedal sends an input to the ECM. The sensor will continuously update the power train ECM on the position of the left pedal. The ECM records the change of position. Then, the ECM activates the appropriate solenoid valve.
The position sensor for the left brake pedal is a PWM sensor. The sensor continuously generates a PWM signal. The duty cycle varies in proportion to the position of the pedal. The ECM receives the PWM signal from the position sensor. The ECM measures the duty cycle in order to determine the position of the pedal. The frequency of the sensor signal is constant at 5000 Hz. The machine electrical system provides +battery voltage to the pedal position sensor for operating power.
Parking Brake Switch
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| Illustration 7 | g00888667 |
A parking brake switch (10) lights an indicator light on the dash when the parking brake is engaged. When the parking brake is engaged, putting the transmission in gear causes a switch in the transmission control to open. An audible alarm sounds.
Dash Panel Cluster
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| Illustration 8 | g01443403 |
The dash panel cluster (11) is located directly in front of the seat.
Speed Sensors
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| Illustration 9 | g00934290 |
The following speed sensors are installed on the transmission:
- Input speed sensor (12)
- Intermediate speed sensor (13)
- Intermediate speed sensor (14)
- Output speed sensor (15)
- Output speed sensor (16)
Autoshift Switch
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| Illustration 10 | g01442095 |
The autoshift switch (17) is located on the dash of the machine.
Engine ECM
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| Illustration 11 | g00934296 |
The engine ECM (18) is a nonserviceable, environmentally sealed unit. The engine ECM is mounted on the engine on the right side of the machine.
Data Link Connector
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| Illustration 12 | g01442157 |
The Data Link connector (19) is located on the right hand console near the floor. The connector is used to connect to the data communication equipment that is used for diagnostic purposes.
Fuse Panel
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| Illustration 13 | g01442159 |
The fuse panel (20) is located on the right hand console panel. The right hand door must be opened in order to obtain access to the fuse panel.