CB64B, CB66B and CB68B Asphalt Compactors Machine Systems Caterpillar

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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.

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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.

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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.

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Injury to personnel can result if they are not in the operator's view. Allow only essential personnel near the machine, and make sure the personnel are in the operator's view when testing, to prevent injury. Make sure checks are done in an open area.

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To prevent injury or death, never work under a machine while a test is being performed.

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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.

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Personal injury or death can result from improperly checking for a leak. Always use a board or cardboard when checking for a leak. Escaping air or fluid under pressure, even a pin-hole size leak, can penetrate body tissue causing serious injury, and possible death. If fluid is injected into your skin, it must be treated immediately by a doctor familiar with this type of injury.

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Escaping fluid under pressure, even a pinhole size leak, can penetrate body tissue, causing serious injury, and possible death. If fluid is injected into your skin, it must be treated immediately by a doctor familiar with this type of injury. Always use a board or cardboard when checking for a leak.

Specifications

Introduction

Case drain flow indicates the condition of the vibratory motor. Perform this test if the vibratory frequency is outside the design specification.

Note: The machine is equipped with two vibratory motors. The vibratory motors are similar. The following procedure illustrates the test on the rear vibratory motor. The same procedure can be used to test the front vibratory motor.

Note: Park the machine on soft dirt or place tires under the drums. Alternately, the machine can be lifted onto jacks, and the machine drums may be supported by air bags. The weight of the machine is approximately 8935 kg (19698 lb).

Required Tools

Illustration 1	g03831899

1. Apply Tool (L) to the pipe thread on Tool (B), Tool (C) and Tool (J).

2. Install Tool (B) in the outlet end of Tool (A). Install Tool (C) in Tool (B). Install Tool (D) in Tool (C).

3. Install Tool (J) to the inlet end of Tool (A). Install Tool (G) and Tool (H) to Tool (J).

4. Install one Tool (F) to each end of Tool (E).

5. Connect one Tool (F) to Tool (G).

Illustration 2	g03833544

Illustration 3	g03833542

Reference: Special Instruction, REHS7696, "Software Installation Instructions of the Plus+1^TM Service Tool for Caterpillar (P1STC) Is Available for Caterpillar Paving Products".

1. Connect Tool (Q2) and Tool (R) to Tool (Q1). Connect Tool (Q2) to the USB port on Tool (P).

Test Preparation

Note: The machine is equipped with two vibratory motors. The vibratory motors are similar. The following procedure illustrates the test on the rear vibratory motor. The same procedure can be used to test the front vibratory motor.

Note: Park the machine on soft dirt or place tires under the drums. Alternately, the machine can be lifted onto jacks, and the machine drums may be supported by air bags. The weight of the machine is approximately 8935 kg (19698 lb).

1. Drive the machine to a smooth, horizontal surface.
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   Illustration 4	g03831037

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

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

4. Use throttle control switch (3) in order to operate the engine in ECO mode or in low idle.

   Note: Two things indicate when the engine is in ECO mode. First, "ECO" will appear on the display. Second, the second LED next to throttle control switch (3) will be illuminated. Two things indicate when the engine is at low idle. First, "Low Idle" will appear on the display. Second, the first LED next to the throttle control switch will be illuminated.

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   Illustration 5	g03831049

5. Move engine start switch (4) to the OFF position.
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   Illustration 6	g03831557

6. Connect Tool (R) to diagnostic connector (5).
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   Illustration 7	g03831570
   Rear propel motor

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   Illustration 8	g03831578
   Front propel motor

7. Disconnect brake supply hose assembly (6) to both motors. Use Tool (M) to cap the port. Use Tool (N) to plug the hose.
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   Illustration 9	g03831585

8. Loosen clamp (8) on the case drain hose of the vibratory motor. Detach case drain hose (7) from adapter (9). Remove adapter (9) from the vibratory motor. Install Tool (K) in the vibratory motor.
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   Illustration 10	g03831616

9. Connect inlet of flowmeter assembly (A) to Tool (K). Connect the outlet of the flowmeter assembly to case drain hose (7). Tighten hose clamp (8).

Test Procedure

1. Move engine start switch (4) to the START position. Release the switch when the engine starts.

2. Operate the engine at low idle for a few minutes. Use throttle control switch (3) in order to operate the engine in high idle.

   Note: Two things indicate when the engine is at high idle. First, "High Idle" will appear on the display. Second, all three LED's next to throttle control switch (3) will be illuminated.

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   Illustration 11	g03831625

3. Monitor the hydraulic oil temperature on operator display (10). Operate the machine until the oil temperature reaches 43 ° ± 5.6 °C (110 ° ± 10 °F)

4. Move parking brake switch (2) to the OFF position.
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   Illustration 12	g03831635

5. Use vibratory frequency switch (14) in order to set the vibratory system in the low frequency/high amplitude mode.

   Note: Two things indicate when the vibratory system is in the low frequency/high amplitude mode. First, "Vibe Frequency Mode Low" will appear on the display. Second, one LED next to vibratory frequency switch (14) will be illuminated.

6. If necessary, use drum select switches (12) and (13) in order to select both drums.

   Note: Two things indicate when the machine is in dual drum mode. First, "Vibe Drum Select Dual" will appear on the display. Second, the third LED next to rear drum select switch (13) and the first LED next to front drum select switch (12) will be illuminated.

7. Use auto vibratory decrease switch (11) in order to set the vibratory system in the manual mode.

   Note: Two things indicate when the vibratory system is in the manual mode. First, "Vibe Turn On Speed % Manual" will appear on the display. Second, none of the LEDs next to auto vibratory decrease switch (11) will be illuminated.

8. Launch the "Plus+1 Service Tool for Caterpillar" program on the computer and follow the instructions displayed for communication.
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   Illustration 13	g03831804

9. Click on "Status" icon (15).

10. Check "Active SPNs" (16). Clear any open "Active SPNs".
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    Illustration 14	g03831837

11. Click on "Hydraulics" (17).

12. Click on "Vibe Test Mode" (18).
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    Illustration 15	g03831841

13. Click on "Enable" icon (19) in order to enable the "Normal Vibe Test Mode".

14. When "Normal Vibe Test Mode" is in "Enabled" mode. The vibratory enable solenoid will be energized.
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    Illustration 16	g03831851
    Standard propel control lever

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    Illustration 17	g03832332
    Optional propel control lever

15. Press vibratory control switch (20) on propel control lever (1). The vibratory control switch must be held in the ON position for at least 2 seconds for the vibratory system to actuate.

16. Read the flow on Tool (A). The flow should be approximately 6.5 L/min (1.7 US gpm) to 9 L/min (2.4 US gpm).

    Note: Motor case drain flow cannot be adjusted. If the case drain flow is greater than 9.5 L/min (2.5 US gpm), determine the source of excess flow and repair. If the flow is less than 3.7 L/min (1 US gpm), inspect the flushing valve and orifices.

17. Use vibratory control switch (20) to stop the vibratory system.

18. Use vibratory frequency switch (14) in order to place the drums in the high frequency/low amplitude mode.

    Note: Two things indicate when the vibratory system is in the high frequency/low amplitude mode. First, "Vibe Frequency Mode High" will appear on the display. Second, two of the LEDs next to vibratory frequency switch (14) will be illuminated.

19. Press vibratory control switch (20) on propel control lever (1). The vibratory control switch must be held in the ON position for at least 2 seconds for the vibratory system to actuate.

20. Read the flow on Tool (A). The flow should be approximately 6.5 L/min (1.7 US gpm) to 9 L/min (2.4 US gpm).

    Note: Motor case drain flow cannot be adjusted. If the case drain flow is greater than 9.5 L/min (2.5 US gpm), determine the source of excess flow and repair. If the flow is less than 3.7 L/min (1 US gpm), inspect the flushing valve and orifices.

21. Use vibratory control switch (20) to stop the vibratory system.

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

23. Use throttle control switch (3) in order to operate the engine in ECO mode or in low idle.

    Note: Two things indicate when the engine is in ECO mode. First, "ECO" will appear on the display. Second, the second LED next to throttle control switch (3) will be illuminated. Two things indicate when the engine is at low idle. First, "Low Idle" will appear on the display. Second, the first LED next to the throttle control switch will be illuminated.

24. Move engine start switch (4) to the OFF position.

25. Remove the tooling from the vibratory motor. Install adapter (9) in the vibratory motor. Reconnect the case drain line to the vibratory motor.

26. If necessary, repeat this test for the other vibratory motor.

27. Remove Tool (N) from brake supply hose assembly (6) at both drum propel motors. Remove Tool (M) from the brake inlet port in both drum propel motors. Connect brake supply hose (6) to the brake inlet ports on the propel motors.

28. Remove tooling from diagnostic connector (5).