2003/03/24 Correction to Disassembly and Assembly , "Transmission - Assemble" {1408, 3030, 3030} Caterpillar


Correction to Disassembly and Assembly , "Transmission - Assemble" {1408, 3030, 3030}
`
2003/03/24 [SEPD0676]
ELECTRICAL AND STARTING SYSTEM
SENSOR GP
2003/03/24 Correction to Disassembly and Assembly , "Transmission - Assemble" {1408, 3030, 3030}
Track-Type Tractors:
D10R (S/N: AKT1-UP)
Service Magazine SEPD0676, 24 March 2003, "An Improved Method for Adjusting the Speed Sensor is Now Available". Disregard this article. See the article that follows.Disassembly and Assembly, RENR3927, "D10R Track-Type Tractor Power Train", "Transmission - Assemble". This module is part of Service Manual, RENR3920. Replace Step 92 in the module above with the following adjustment procedure.

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




    Illustration 1g00986065

    (1) Speed sensor

    (2) Speed sensor

    (3) Jam nuts

    (4) Bolt

    (5) Bracket

  1. Install speed sensor (1) and speed sensor (2). Do not tighten jam nuts (3) at this time.

  1. Turn the rotor so that a tooth lines up with the center of each speed sensor.

  1. 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.




    Illustration 2g00986066

  1. 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.




    Illustration 3g00986067

    (3) Jam nuts

    (4) Bolt

    (5) Bracket

    (6) Feeler gauge

  1. Use a 1.37 mm (0.054 inch) feeler gauge (6) in order to set the gap between the rotor and the speed sensor.

  1. Hold the body of each sensor while you tighten each jam nut (3) to a torque of 25 N·m (18.5 lb ft).

  1. 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.




    Illustration 4g00986068

    (7) 1/2 - 13B threaded hole

    (A) 60.8 mm (2.394 inch)

    (B) 60.8 mm (2.394 inch)

  1. Drill a 11 mm (0.433 inch) hole (6) in the bracket for the sensors.

  1. Tap the hole for a 1/2 13 2B threaded hole.

Information System:

3046 Engine for Caterpillar Built Machines Flywheel - Inspect
IT28G Integrated Toolcarrier and 924G, 924GZ and 928G Wheel Loaders Engine Supplement Crankshaft Front Seal - Remove
C4.4 Industrial Engine Engine Oil Pump - Inspect
3044C Industrial Engine and Engines for Caterpillar Built Machines Cylinder Block
2003/03/31 Correction to Specifications , "Steering Control Valve" {4307}
IT28G Integrated Toolcarrier and 924G, 924GZ and 928G Wheel Loaders Engine Supplement Refrigerant Compressor - Remove and Install
IT28G Integrated Toolcarrier and 924G, 924GZ and 928G Wheel Loaders Engine Supplement Alternator - Remove and Install
AD30 Underground Articulated Truck Hydraulic System Oil Filter (Pilot)
IT28G Integrated Toolcarrier and 924G, 924GZ and 928G Wheel Loaders Engine Supplement Electric Starting Motor - Remove and Install
IT28G Integrated Toolcarrier and 924G, 924GZ and 928G Wheel Loaders Engine Supplement Turbocharger - Install
IT28G Integrated Toolcarrier and 924G, 924GZ and 928G Wheel Loaders Engine Supplement Turbocharger - Remove
IT28G Integrated Toolcarrier and 924G, 924GZ and 928G Wheel Loaders Engine Supplement Fuel Transfer Pump - Remove and Install
2003/04/21 Correction to Parts Manuals , "175-3094 Clutch and Gear Group (Third and Fourth)" {3061, 3155}
3044C Industrial Engine and Engines for Caterpillar Built Machines Gear Group - Inspect
D11R Track-Type Tractor Engine Valve Lash - Check/Adjust
3044C Industrial Engine and Engines for Caterpillar Built Machines Cylinder Head - Inspect
C-9 Engine for Caterpillar Built Machines Diagnostic Codes
D6N Track-Type Tractor Machine Systems Battery - Remove and Install
3046 Engine for Caterpillar Built Machines Connecting Rod - Inspect
3044C Industrial Engine and Engines for Caterpillar Built Machines Crankshaft
980G Wheel Loader Power Train Torque Converter - Disassemble - Heavy Duty
Replacement of Implement Pump with Gear Pump{5055, 5084}
D6N Track-Type Tractor Machine Systems Bottom Guard - Remove
D6N Track-Type Tractor Machine Systems Bottom Guard - Install