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Engine exhaust contains products of combustion which may be harmful to your health. 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 engine is running unless otherwise specified. |
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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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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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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. |
| Required Tools | |||
|---|---|---|---|
| Tool | Part Number | Description | Qty |
| A | 146-4080 | Digital Multimeter Gp | 1 |
| B | 7X-1710 | Multimeter Probe | 1 |
| C | 9U-7839 | Stopwatch | 1 |
Note: The propulsion motor for each drum is equipped with a speed sensor. The following procedure can be used to test any of the sensors.
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
Note: For the following test, the side cutter (If equipped) must be removed from the machine before calibrating the sensor.
- Drive the machine to a smooth, horizontal surface.
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Illustration 1 g06167947 - Move propel lever (1) to the NEUTRAL position.
- Move parking brake switch (2) to the ON position.
- Place the engine in ECO mode or low idle.
- Select "Main Menu" (3) on the machine display.
- Select "Machine Setup" (4).
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Illustration 3 g06148261 - Select "Engine Spd Sw" (5).
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Illustration 4 g06148286 - Select "ECO" (6) or "Low" (7).
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Illustration 2 g06148038 Show/hide table
Illustration 5 g06144108 - Move engine start switch (8) to the OFF position.
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Illustration 6 g06182260 Note: Both drums have vibratory speed sensors on each vibratory motor.
- Locate vibratory speed sensor #2 (9) for the drum being tested. Do not disconnect the connector.
- Insert black spoon from Tool (B) to the black wire in the connector for vibratory speed sensor #2. Insert red spoon from Tool (B) to the red wire in the connector for vibratory speed sensor #2.
- Connect Tool (B) to Tool (A). Set Tool (A) to measure frequency.
- Move engine start switch (8) to the START position. Release the switch when the engine starts.
- Place the engine in ECO mode.
- Move parking brake switch (2) to the OFF position.
- Set the vibratory system in the manual mode.
- Select "Main Menu" (10) on the machine display.
- Select "Machine Setup" (11).
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Illustration 8 g06182262 - Select "Vibe Turn On Speed" (12).
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Illustration 9 g06182263 - Select "Manual" mode (13).
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Illustration 7 g06182261 Show/hide table
Illustration 10 g06182265 - If necessary, use drum select switch (14) 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, both LEDs next to drum select switch (14) will be illuminated.
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Illustration 11 g06182269 - Press vibratory control switch (15) on the propulsion control lever. Hold the vibratory control switch down for 2 seconds to activate the vibratory system.
- Read the frequency shown on the machine display.
- Press vibratory control switch (15) to shut off the vibratory system.
- Move parking brake switch (2) to the ON position.
- Move engine start switch (8) to the OFF position.
- Pulses on Tool (A) should equal the vibrations per minute on the machine display.
