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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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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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| NOTICE |
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In order to avoid damage to the vibrator system during testing, always perform the testing with the vibrator drum on top of tires or on loose dirt. Tires will simulate a non-compacted soil condition Never operate the vibrator system when the machine is on concrete. |
| NOTICE |
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If a testing time longer than three minutes is required, rotate the drum periodically in order to lubricate the eccentric weight shaft bearings. |
| Required Tools | |||
|---|---|---|---|
| Tool | Part Number |
Description | Qty |
| A (1) | 133-9905 | Vibratory Gauge Gp | 1 |
| 133-0963 | Vibratory Gauge Gp | 1 | |
| B | 4C-6500 | Digital Thermometer | 1 |
| ( 1 ) | Use either the frequency meter or the drum vibration tachometer. |
- Drive the machine to a smooth, horizontal surface on loose, uncompacted soil.
Note: Vibratory frequency is highly dependent on the temperature of the eccentric bearing. In order to ensure that the temperature of the eccentric bearing is sufficiently high before testing vibratory frequency, it may be necessary to drive the machine for 30 minutes while you operate the vibrator.
Note: If loose, uncompacted soil is unavailable, drive the machine onto an unusable, loose tire without rims and with a carcass of substantial stiffness in order to support the drum. If tires are used, the drum should be a minimum of 102 mm (4 inch) above the ground.
- Move propulsion lever (1) to the NEUTRAL position.
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| Illustration 1 | g01407630 |
- Move parking brake switch (2) to the ON position.
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| Illustration 2 | g01407609 |
- If necessary, move throttle switch (3) to the HIGH IDLE position.
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| Illustration 3 | g01407610 |
- Monitor hydraulic oil temperature with Tool (B). Operate the machine until the oil temperature reaches 43 ± 5 °C (110 ± 9 °F).
- Move amplitude selector switch (4) to the LOW AMPLITUDE position.
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| Illustration 4 | g01407789 |
- Actuate vibratory switch (5) on the propulsion lever in order to start the vibrator.
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| Illustration 5 | g01407790 |
- Read vibratory frequency on Tool (A). The frequency should be 1850 ± 50 vpm.
- Actuate vibratory switch (5) on the propulsion lever in order to stop the vibrator.
- Move amplitude selector switch (4) to the HIGH AMPLITUDE position.
- Actuate vibratory switch (5) on the propulsion lever in order to start the vibrator.
- Read vibratory frequency on Tool (A). The frequency should be 1850 ± 50 vpm.
- Actuate vibratory switch (5) on the propulsion lever in order to stop the vibrator.
- Move throttle switch (1) to the LOW IDLE position.
- Move engine start switch (6) to the OFF position.
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| Illustration 6 | g01407793 |
- If the frequency readings were inside the specified range, go to Step 20. If the LOW amplitude frequency or the HIGH amplitude frequency is outside the specified range, go to Step 17.
Note: The high amplitude vibratory frequencies and the low amplitude vibratory frequencies that were measured in Step 8 and Step 12 must match within 25 vpm.
- Remove bolts (7) and remove right cover plate (8) .
Note: The cab can be tilted in order to provide greater access to components under the cab. However, the cab must be lowered and fastened before the machine is operated. Refer to Disassembly and Assembly, KENR6413, "Cab - Tilt".
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| Illustration 7 | g01407796 |
- Use the following procedure to adjust the vibratory frequency:
- Remove the cap from LOW amplitude adjustment (9) and HIGH amplitude adjustment (10) .
- Loosen the locknut. Rotate the adjustment nut counterclockwise in order to increase the frequency. Rotate the adjustment nut clockwise in order to decrease the frequency.
- Hold the adjustment screw and tighten the locknut.
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| Illustration 8 | g01407802 |
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| Illustration 9 | g01407803 |
- Move engine start switch (6) to the START position. Release the switch when the engine starts. Go to Step 4.
- If necessary, install cover plate (8). Install bolts (7) .