CB7 and CB8 Vibratory Asphalt Compactor Machine Systems Caterpillar


Pump Control (Electronic Displacement Control) Neutral (Vibratory) - Test and Adjust - Solid Drum

Usage:

CB7 AT5

------ WARNING! ------

Diesel engine exhaust contains products of combustion which may cause personal injury.

Always start and operate the engine in a well ventilated area, and, if in an enclosed area, vent the exhaust to the outside.


------ WARNING! ------

Personal injury can result from rotating and moving parts. Stay clear of all rotating and moving parts.

Never attempt adjustments while the machine is moving or the engine is running unless otherwise specified.

The machine must be parked on a level surface and the engine stopped.

Attach a "Do Not Operate" or similar warning tag to the start switch and controls before servicing, repairing, or making adjustments to the machine.


------ WARNING! ------

Personal injury or death can result from sudden machine movement.

Sudden movement of the machine can cause injury to persons on or near the machine.

To prevent injury or death, make sure that the area around the machine is clear of personnel and obstructions before operating the machine.


------ WARNING! ------

Personal injury can result from hydraulic oil pressure and hot oil.

Hydraulic oil pressure can remain in the hydraulic system after the engine has been stopped. Serious injury can be caused if this pressure is not released before any service is done on the hydraulic system.

Make sure all of the attachments have been lowered, and the oil is cool before removing any components or lines. Remove the oil filler cap only when the engine is stopped, and the filler cap is cool enough to touch with your bare hand.



NOTICE

Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting and repair of the machine. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids.

Refer to Special Publication, NENG2500, "Caterpillar Tools and Shop Products Guide", for tools and supplies suitable to collect and contain fluids in Caterpillar machines.

Dispose of all fluids according to local regulations and mandates.


Table 1
Required Tools 
Tool  Part Number  Description  Qty 
A(1)  198-4234  Digital Indicator 
B(1)  198-4236  Adapter Cable As 
C(1)  198-4237  Pressure Sensor Gp 0-3500 kPa (0-500 psi) 
110-6349  Fitting As 
N/A  Laptop Computer With Plus+1TM Software 
F(2)  317-7484  Communication Adapter Gp 
G(2)  457-6114  Cable As 
J(2)  370-4617  Cable As 
(1) Tool (A), Tool (B), and Tool (C) are part of the 198-4240 Digital Pressure Indicator Gp.
(2) Tool (F), Tool (G), and Tool (H) are part of the 466-6258 Communication Adapter Gp.

  1. Drive the machine to a smooth, horizontal surface.


    Illustration 1g06160408

  2. Move propel lever (1) to the NEUTRAL position.

  3. Move parking brake switch (2) to the ON position.

  4. Place the engine in ECO mode or low idle.


      Illustration 2g06148038

    1. Select "Main Menu" (3) on the machine display.

    2. Select "Machine Setup" (4).


      Illustration 3g06148261

    3. Select "Engine Spd Sw" (5).


      Illustration 4g06148286

    4. Select "ECO" (6) or "Low" (7).


    Illustration 5g06160422

  5. Move engine start switch (8) to the OFF position.


    Illustration 6g06160385

  6. Unlock latch (9) and open engine compartment door (10) on the right side of the machine.

  7. Assemble the tooling. Connect Tool (C) to Tool (B). Make two sets of Tool (C) and Tool (B).

  8. Connect Tools (B) to Tool (A).


    Illustration 7g06162860

  9. Mark the electrical connections. Disconnect solenoid electrical connections (11).


    Illustration 8g06162870

  10. Remove the plug from port "M4" (12). Install one Tool (D) in port "M4". Tighten Tool (D) to a torque of 12 N·m (9 lb·ft). Connect Tool (C) to Tool (D) in port "M4".


    Illustration 9g06162871

  11. Remove the plug from port "M5" (13). Install one Tool (D) in port "M5". Tighten Tool (D) to a torque of 12 N·m (9 lb·ft). Connect other Tool (C) to Tool (D) in port "M5".


    Illustration 10g06160785

  12. Connect Tool (G) and Tool (H) to Tool (F). Connect Tool (G) to diagnostic connector (14). Connect Tool (H) to USB port on Tool (E).

  13. Move engine start switch (8) to the START position. Release the switch when the engine starts.

  14. Place the engine in high idle.

  15. Operate the hydraulic system until the oil temperature reaches the test temperature of 45 °C (113 °F).

  16. Place the engine in ECO mode or in low idle.

  17. Move parking brake switch (2) to the OFF position.

    Note: First-time users need to perform the tasks in the Communication and Connections Wizard. This wizard allows the Windows® operating system to recognize the USB device. Follow the on-screen instructions.

  18. Launch the Plus+1TM program on the computer.


    Illustration 11g06150964

  19. Click "Status" button (15).

  20. Check for "Active Codes". Clear any open "Active Codes".

  21. Click "Machine Control" (16).


    Illustration 12g06150975

  22. Click "Hydraulics" icon (17).

  23. Click "Piston Pump Neutral Test" (18).


    Illustration 13g06150979

  24. Click "Piston Pump Neutral Test" (19).

  25. Click "Enable" icon (20).

  26. When "Piston Pump Neutral Test" (19) is in the "Enabled" mode, the Plus+1TM program is launched.

  27. Record the differential pressure between port "M4" (12) and port "M5" (13) on Tool (A). Differential pressure should be less than 70 kPa (10 psi).

  28. If the differential pressure is greater than 70 kPa (10 psi), go to Step 29. If the differential pressure is less than 70 kPa (10 psi), go to Step 31.


    Illustration 14g06162895

    Note: A small movement of the adjustment mechanism is all that will be required. Larger movements may cause the vibratory shaft to rotate.

  29. Hold adjustment screw (22) and loosen lock nut (21). Watch the pressure gauges. Rotate the adjustment screw until the differential pressure is less than 70 kPa (10 psi).

  30. Hold adjustment screw (22) in place and tighten lock nut (21). Tighten lock nut to a torque of 10 N·m (7 lb·ft).

  31. Move parking brake switch (2) to the ON position.

  32. Move engine start switch (8) to the OFF position.

  33. Remove tooling from diagnostic connector (14).

  34. Remove the tooling from port "M4" and from port "M5". Install plugs. Tighten plugs to a torque of 12 N·m (9 lb·ft).

  35. Connect solenoid electrical connectors (11).

  36. Close engine compartment door (10) on the right side of machine and secure latch (9).

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