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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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Personal injury can result from rotating and moving parts. Moving fan blades and moving parts will throw or cut any object or tool that falls or is pushed into them. Make sure no one is working on, underneath or close to an engine that is running. Make sure the area is free of personnel. |
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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. |
| 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. |
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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 | 4C-8689 | Flow Meter Gp 1.9 to 18.9 L/min (0.5 to 5.0 US gpm) |
1 |
| 6V-8556 | Nut | 2 | |
| 6V-8942 | O-Ring Reducer | 2 | |
| 6V-8398 | O-Ring Seal | 2 | |
| 8C-6874 | Connector | 2 | |
| 124-2117 | Coupling | 2 | |
| 122-6870 | Hydraulic Hose 762 mm (30 inch) |
1 | |
| B | 4C-6500 | Digital Thermometer | 1 |
- Drive the machine to a smooth, horizontal surface on loose, uncompacted soil.
Note: If loose, uncompacted soil is unavailable, drive the machine onto an unusable, loose tire 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 |
- Move throttle switch (3) to the LOW IDLE position.
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| Illustration 3 | g01407610 |
- Move engine start switch (4) to the OFF position.
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| Illustration 4 | g01407660 |
- Assemble Tool (A) .
- Disconnect case drain line (5) from the vibratory motor.
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| Illustration 5 | g01408599 |
- Connect inlet hose from Tool (A) to the vibratory motor. Connect case drain line (5) to the outlet port of the flow meter of Tool (A) .
- Move engine start switch (4) to the START position. Release the switch when the engine starts.
- Operate the engine at low idle for few minutes. Move throttle switch (3) to the HIGH IDLE position.
- Monitor hydraulic oil temperature with Tool (B). Operate the machine until the oil temperature reaches 43 ± 5.6 °C (110 ± 10 °F).
- Read flow on Tool (A). The flow should be less than 1 L/min (0.3 US gpm).
- Move amplitude selector switch (6) to the LOW AMPLITUDE position.
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| Illustration 6 | g01408600 |
- Depress vibratory switch (7) on top of propulsion lever in order to start the vibratory system.
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| Illustration 7 | g01408602 |
- Read the flow on the flow meter. The flow should be 5.5 plus 2 and minus 1 L/min (1.5 plus 0.5 and minus 0.3 US gpm).
- Depress vibratory switch (7) on top of propulsion lever in order to stop the vibratory system.
- Move amplitude selector switch (6) to the HIGH AMPLITUDE position.
- Depress vibratory switch (7) on top of propulsion lever in order to start the vibratory system.
- Read the flow on the flow meter. The flow should be 5.5 plus 2 and minus 1 L/min (1.5 plus 0.5 and minus 0.3 US gpm).
- Depress vibratory switch (7) on top of propulsion lever in order to stop the vibratory system.
- Move throttle switch (3) to the LOW IDLE position.
- Move engine start switch (4) to the OFF position.
- Remove Tool (A) from the vibratory pump and reconnect case drain line (5) .