SECTION 3 OPERATING CONTROLS AND INSTRUMENTS
3-8 DD-29/31HF/38HF Vibratory Asphalt Compactors
Vibration ON/OFF Switch
The Vibration ON/OFF switch (15) is used to manually activate and interrupt drum vibration.
Press the switch once to activate drum vibration. Press switch again to deactivate drum
vibration. See AUTO vibration switch (1) for a description of the vibration modes.
NOTE: In manual mode, vibration must only be activated when the
machine is in motion. Always turn OFF vibration before the machine
comes to a halt and never allow the drums to vibrate when the machine
is stationary.
SUSPENSION SEAT
The machine is equipped with a suspension seat (1, Figure 3-7) that features several
adjustments that enhance operator comfort. The seat (1) can be moved forward and
backward, as well as from side to side on the operator’s platform. Forward and backward seat
movement is controlled by a lever (2, Figure 3-7) on the left side of the seat. Side to side seat
movement is controlled by a lever (3, Figure 3-7) on the right side of the seat. In addition, a
knob (4, Figure 3-7) on the front of the seat allows the operator to adjust the seat suspension
for maximum comfort.
Figure 3-7
OPTIONS
In addition to the standard controls listed previously, there are some controls available for
optional equipment. They are: Driving Light switch, and Beacon switch. Contact your
Distributor for more information on these options.
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