MULTIQUIP Mikasa MVH406DSZ Operation And Parts Manual page 22

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 24), 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
LED ON
Figure 24. 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 25) the green LED will flash. When this
occurs check the engine RPMs and the V-belt tension
as it could be loose.
VIBRATION ABNORMALITY DUE TO
GREEN LED
FLASHING
Figure 25. Vibration Abnormality
Improper Engine RPM's
page 22 — mvh406dsz/dsCpas pLaTe COmpaCTOR • OpeRaTiOn and paRTs manuaL — Rev. #7 (02/28/14)
GROUND TROUBLE
OR
SOFT GROUND
RED
LED ON
IMPROPER ENGINE RPM
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 26 then please check the sensor wire because
there is a possibility that it is disconnected.
GREEN LED
FLASHING
Figure 26. 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.
OpERATION
RED LED
FLASHING