OPERATING CONTROLS AND INSTRUMENTS SECTION 3
DD-29/31HF/38HF Vibratory Asphalt Compactors 3-7
Engine Speed Control (Throttle)
WARNING
!
Runaway machine.
Do not attempt to control machine travel speed with the engine speed
control.
Use propulsion control to control travel speed. Maintain engine speed at
operating RPM for all machine operations.
The engine speed control (13) is used to govern the engine speed (RPM). Pull control lever
gradually upward to increase engine RPM. Push lever downward gradually to decrease
engine RPM.
Propulsion Control Lever
The propulsion control (Forward-STOP-Reverse) lever (14) is used to control the forward and
reverse movement and stopping of the compactor.
WARNING
!
Moving the propulsion control quickly may cause loss of machine
control, lurching, or serious injury.
Move the control slowly.
To propel the machine in either the Forward or Reverse direction, gradually move the handle
toward the desired direction.
To slow and stop travel of the machine, move the control slowly toward the STOP (center)
position. Place the control lever at the STOP position for a complete halt of machine travel.
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