operation
System Diagnostics to Detect Operational Abnormalities
Detection of ground trouble and soft ground
1.For a case of unstable ground or soft ground (soil containing high clay content) for which the use of this machine is not suitable, only the green and red LEDs will be on (Figure 27), with no yellow LED's on.
If this occurs it would be challenging to achieve the desired compaction results. Check to make sure the ground conditions are prepared to specification before proceeding with the compaction process.
GREEN | GROUND TROUBLE | |
OR | ||
LED ON | ||
SOFT GROUND | ||
| ||
| RED | |
| LED ON |
Figure 27. Ground Trouble or Soft Ground
Detection of Vibration Abnormality
2.When appropriate vibration frequency cannot be achieved during operation due to improper engine RPMs (Figure 28) the green LED will flash. When this occurs check the engine RPMs and the
VIBRATION ABNORMALITY DUE TO
IMPROPER ENGINE RPM
GREEN LED
FLASHING
Figure 28. Vibration Abnormality
Improper Engine RPM's
Function to Detect Electric System Abnormality
Sensor wire disconnection (between acceleration sensor and sensor panel)
3.If red and green LEDs are flashing alternately as shown in Figure 29 then please check the sensor wire because there is a possibility that it is disconnected.
RED LED
FLASHING
GREEN LED
FLASHING
Figure 29. Sensor Wire Disconnection
Power cable disconnection (between battery and sensor panel)
4.If there are no LEDs on or flashing even when the key switch is turned on then please check the power cable because there is a possibility it is disconnnected.
mvh306ds2/dsCPAs pLATE COMPACTOR • operation and parts manual — rev. #7 (02/04/14) — page 23
