User Manual

Reversible vibratory plate Operation Manual
page 10 issued 03/2016
Compaction at temperature below freezing is highly dependent on water content in the soil to be
compacted. Under such conditions, soil becomes harder and more difficult to compact. It is possible to
compact dry materials or rapidly compact fresh soil, before it gets frozen.
1.10.2. Operation at high altitudes
With increasing altitude, engine power decreases due to changed oxygen content. Within certain extent,
it is possible to improve the engine power by installing different main nozzle and by adjusting the
carburetor (gasoline engines) or by adjusting the injection system (diesel engines). Should the machine
be operated in high altitudes (above 1500 m above sea level), contact the engine manufacturer to carry
out the adjustments.
In case that you intent to operate the machine in high altitudes in the time of purchase, consult the
manufacturer.
1.10.3. Operation in Dusty Environment
In case that the machine is operated in extremely dusty environment, it is recommended to shorten the
service intervals for cleaning or replacement of the air filter.
Clean the machine from dust regularly.
2. TECHNICAL DESCRIPTION
Reversible vibrator plates are designated for compaction of all sorts of soil, for compaction of
trenches and surfaces as well as - in the last resort - for compaction of asphalt surfaces.
Centrifugal force of the vibrator has been optimized depending on the machine weight and size of
the ground plate; therefore, high compaction effect has been reached.
Vibratory plates of the VDR line are fitted with directed vibrator. By fluently shifting mutual
position of the eccentric flyweights, the resultant force is changing its direction and thus the plate speed
can be fluently controlled forwards, backwards or the plate may vibrate at a spot. The working part is the
ground plate, on which the vibrator is mounted. The engine base plate is resiliently mounted to the
ground plate.
The vibratory plate is driven by four-stroke single-cylinder engine. The most frequently used
engine are gasoline engines HONDA and diesel engines HATZ. The engine is coupled to the vibrator by
a drive belt. Centrifugal clutch mounted on the engine shaft disconnects power transmission at idle speed
of the engine.
The operator is controlling the plate by a resiliently mounted and tilting control bar, where travel
control lever and throttle lever are located. In the case of electronically controlled engine is replaced by
the switch lever of gas idling and working speed.
2.1. Basic Technical Parameters