- Track-Type Tractors:
- D10R (S/N: AKT1-UP)
The present method for adjusting the gap of the speed sensors may result in erratic signals. In some cases, the speed sensors may become damaged by contacting the rotor. In some cases, the gap between the rotor and the speed sensors may be incorrect.
An improved method for adjusting the speed sensors on the D10R transmission has been developed. This new method will result in speed sensor signals that are more consistent across a wide range of speeds and loads on the transmission.
If intermittent faults from the speed sensor occur, adjust the position of the speed sensor by using the following procedure. Step 92 in the module that is referenced above should be replaced by the following steps.
Adjusting the Speed Sensor
- Install speed sensor (1) and speed sensor (2). Do not tighten jam nuts (3) at this time.
(1) Speed sensor
(2) Speed sensor
(3) Jam nuts
- Turn the rotor so that a tooth lines up with the center of each speed sensor.
- Install a 1/2 - 13B bolt (4) in bracket (5) .
Note: Make sure that the bolt is at least 38.1 mm (1.5 inch) in length.
- Tighten bolt (4) against the rotor to a torque of 4.5 N·m (40 lb in).
Note: Do not overtighten bolt (3). Damage to the rotor may occur if you overtighten the bolt.
- Use a 1.37 mm (0.054 inch) feeler gauge (6) in order to set the gap between the rotor and the speed sensor.
(3) Jam nuts
(6) Feeler gauge
- Hold the body of each sensor while you tighten each jam nut (3) to a torque of 25 N·m (18.5 lb ft).
- Remove bolt (4) from bracket (5) .
Note: On some of the early machines, it may be necessary to modify the 165-5631 Bracket. Use Illustration 4 in order to add a 1/2 - 13B threaded hole to the bracket.
- Drill a 11 mm (0.433 inch) hole (6) in the bracket for the sensors.
(7) 1/2 - 13B threaded hole
(A) 60.8 mm (2.394 inch)
(B) 60.8 mm (2.394 inch)
- Tap the hole for a 1/2 13 2B threaded hole.