2002/11/18 Replacement Mobil-Trac System Belts Are Now Available for John Deere 8000T Series Agricultural Tractors {4198} Caterpillar


Replacement Mobil-Trac System Belts Are Now Available for John Deere 8000T Series Agricultural Tractors {4198}
`
2002/11/18 [SEPD0656]
UNDERCARRIAGE
BELT & DRIVE GP
2002/11/18 Replacement Mobil-Trac System Belts Are Now Available for John Deere 8000T Series Agricultural Tractors {4198}
Agricultural Tractor:
  • All
  • Reference: See Information Release Memo (IRM), PELJ0118, "Cat Expands Ag Belt Line to include Extreme Service Belts for John Deere" for additional information.

    A line of mobil-trac system (MTS) belts that are manufactured by AVSpare are now available for parts service on 8000T Series Agricultural Tractors.

    The new belts have the following features and benefits:

    • 72 extreme service tread bars with increased tread bar size compared to original equipment manufacturer (OEM) belts

    • 48 guide blocks (side slope design) with a new profile which is designed to fit the undercarriage for a 8000T Series Agricultural Tractors

    • Extra layer of 90 degree cables for improved stiffness and protection for the inside diameter of the belts(on 635 mm (25 inch) and 762 mm (30 inch) belts)

    • Standard AVSpare MTS warranty

    • Length of the belt is identical to OEM belts

    The new belts are available in the following sizes:

    • 1R-1370 Belt (457 mm (18 inch))

    • 1R-1371 Belt (635 mm (25 inch))

    • 1R-1372 Belt (762 mm (30 inch))




    Illustration 1g00933276

    MTS Belt for 8000T Series Agricultural Tractors

    Use the following procedure to instruct the service technician in removal and installation of the belts:

    Installation of AVSpare Belts on 8000T Series Agricultural Tractors

    Required Tools

    The 1U-9058 Belt Tensioning Hose Gp may be adapted for detensioning the 8000T Series Agricultural Tractors.

    See Table 1 for the parts that are needed to adapt the belt tensioning hose group to 8000T Series Agricultural Tractors.

    Table 1
    Required Tools    
    Item     Part Number     Description     Qty    
    1     6V-3966     Fitting As     1    
    2     6B-5072     Terminal Bushing     1    
    3     9250-4     9200 Series Lever Coupler (Parker Quick Coupling Division) (1)     1    
    4     1U-9058     Belt Tensioning Hose Gp     1    
    ( 1 ) Contact Parker Quick Coupling Division or local Pioneer Coupling Distributor for parts.



    Illustration 2g00930803

    Note: The 1U-9058 Belt Tensioning Hose Gp is used to tension and detension the belts on Challenger Row Crop Agricultural Tractors.

    Use the 1U-9058 Belt Tensioning Hose Gp with the following parts in order to tension and detension the belts:

    • Fitting assembly (1)

    • Terminal bushing (2)

    • Lever Coupler (3)

    Procedure for Detensioning the Belt




    Illustration 3g00930809

    Fitting (5) for detensioning the undercarriage is located on the undercarriage at the top of the accumulator. The fitting in Illustration 3 has a 90 degree elbow. This was done for the purpose of illustration. OEM couplers are installed without a 90 degree elbow.

    1. Connect lever coupler (3) to the existing belt tensioning hose group. See Illustration 2. Make sure that coupler (3) is in the CLOSED position.

    1. Remove the protective cap from the fitting in Illustration 3, as shown.



      Illustration 4g00930820

    1. Attach belt tensioning hose group (4) to fitting (5) .



      Illustration 5g00930815

    1. Attach the opposite end of belt tensioning hose group (4) to port "1" on the implement valve stack.



      Illustration 6g00930806

    1. Verify that the needle valve that is on the belt tensioning hose group is fully open. Then move the handle on lever coupler (3) to the OPEN position. The pressure gauge should now be reading at least 13790 to 17926 kPa (2000 to 2600 psi).

    1. Start the machine.

    1. Set the flow rate for the No. 1 implement valve to 18.9 L/min (5 US gpm). Set the detent to the CONTINUOUS position. This can be done by programming the No. 1 implement valve on the right hand control console.

    1. Move the No. 1 implement valve to the FLOAT position. Hold the No. 1 implement valve in this position for at least 20 seconds. The belt should loosen and the pressure gauge should drop to near zero.

    Procedure for Tensioning the Belt

    1. Make sure that the needle valve on belt tensioning hose group (4) and lever coupler (3) are both in the OPEN position.

    1. Start the machine.

    1. Actuate the No. 1 implement valve so that the valve is in the RAISE position. Leave the circuit actuated at least 20 seconds. Then verify that pressure increases to approximately 19995 kPa (2900 psi).

    1. Move lever coupler (3) to the CLOSED position.

    1. Actuate the No. 1 implement valve to the LOWER position. This will relieve the pressure that is in belt tensioning hose group (4) .

    1. Shut off the tractor.

    1. Disconnect the hose at the No. 1 implement valve and at lever coupler (3). Then disconnect lever coupler (3) at the fitting for the accumulator on the undercarriage.

    1. Clean the protective cap. Then install the protective cap.


    NOTICE

    When a new belt is installed, the alignment procedure must be performed. Failure to align the belt may cause damage to the guide block, midwheel, idler, and the driver.


    Procedure for Aligning the Belt

    The alignment procedure is similar to the alignment procedure for the Challenger Row Crop tractor. In the OEM service literature, it is recommended that you drive the tractor for a distance of 400 m (1312 ft). Then check the temperature of the inner surface of the guide block and the outer surface of the guide block.

    Check and make sure that the guide blocks are moving through the center of the following components:

    • Driver

    • Idler

    • Midwheels




    Illustration 7g00930823

    Perform the following adjustment procedure if one side of the guide blocks is hotter than the opposite side.




    Illustration 8g00935669

    Note: Make sure that you measure the temperature of the guide block at the base of the guide block (raised area). This should be the only part of the guide block that makes contact with the wheels. See Illustration 8. Measure the temperature of the guide blocks at location (7) .

    If an adjustment is needed, locate the adjustment screws that are on the roller frame. These screws are directly behind the front idlers. See Illustration 7. Loosen locknuts (6) on the inside and the outside screws.

    Turn the screw in the clockwise direction if you need the belt to move toward that side. The direction that you turn the screws is opposite the direction that you would turn the screws on the Challenger Row Crop Tractor.

    Note: Before you turn the screw clockwise you will first need to turn the screw counterclockwise on the other side of the roller frame.

    Move the screw one half turn for each adjustment. Then tighten locknuts (6) and recheck the temperatures of the guide blocks. Repeat this process, as required.

    The objective is to adjust the belt so that the guide blocks travel in the center of the following components:

    • Driver

    • Idler

    • Midwheel

    A well aligned belt will stay centered on the undercarriage. A well aligned belt will move from one side to the other side without running consistently to one side when the tractor is moving on level ground.

    Reference: Refer to Operation and Maintenance Manual, SEBU7204, "Track - Remove/Replace" for more information about removing the track.

    Reference: Refer to Operation and Maintenance Manual, SEBU7204, "Track Alignment - Check/Adjust" for more information about aligning the track.

    Information System:

    120H and 135H Motor Graders Seat Belt
    CS-563E, CP-563E, CS-573E, CP-573E, CS-583E, CP-583E, CS-663E, CP-663E and CS-683E Vibratory Soil Compactors Drum Scrapers - Inspect/Adjust/Replace
    AP-1000D, AP-1055D, AP-655C, BG-2255C, BG-2455D and BG-260D Asphalt Pavers MID 039 - CID 0168 - FMI 04
    AP-1000D, AP-1055D, AP-655C, BG-2255C, BG-2455D and BG-260D Asphalt Pavers MID 039 - CID 0168 - FMI 03
    574B Forwarder Power Train Hydrostatic Drive System
    AP-655C and BG-2255C Asphalt Pavers Propel System Piston Pump Neutral - Test and Adjust
    3524B Engine for Caterpillar Built Machines Crankshaft Rear Seal and Wear Sleeve - Remove
    797 Off-Highway Truck Power Train Transmission
    RM-350B Road Reclaimer/Soil Stabilizer Machine Systems Rotor Drive Differential - Assemble
    R2900 Load Haul Dump Machine Operation Information
    3512 and 3516 EUI Engines for 784B, 785B, 789B and 793B Off-Highway Trucks Air Filter Restriction Lamp
    3524B Engine for Caterpillar Built Machines Engine Oil Sequence Valves - Remove and Install
    R2900 Load Haul Dump Stopping the Engine
    CB-534D, CB-534D XW and CB-564D Paving Compactors Machine Systems Metering Pump (Steering)
    14H Motor Grader Machine Systems Fuel Tank (Left Side) - Remove
    14H Motor Grader Machine Systems Fuel Tank (Left Side) - Install
    R2900 Load Haul Dump Lift Arm Positioner
    CB-534D, CB-534D XW and CB-564D Vibratory Asphalt Compactors Vibratory System Piston Pump (Vibratory)
    CB-534D, CB-534D XW and CB-564D Vibratory Asphalt Compactors Vibratory System Vibratory Valve
    CB-534D, CB-534D XW and CB-564D Vibratory Asphalt Compactors Vibratory System Piston Motor (Vibratory)
    CB-534D, CB-534D XW and CB-564D Vibratory Asphalt Compactors Vibratory System Eccentric Weight
    R2900 Load Haul Dump Lubricant Viscosities
    938G Series II Wheel Loader and IT38G Series II Integrated Toolcarrier Braking System Accumulator Charging Valve (Brake) - Test and Adjust
    793B Off-Highway Truck Suspension Cylinder Suspension Cylinder (Front)