Table of Contents
Advertisement
MODEL 44-50
VIBRATORY
DRIVER/EXTRACTOR
III.
OPERATING INSTRUCTIONS
F. CHANGING FREQUENCY
1. In order to provide maximum flexibility in achieving optimum pile penetration and
extraction rates, the frequency of the vibratory driver is adjustable.
2. The frequency can be varied from 800 to 1600 vibrations per minute by changing engine
speed. Engine speed is changed with the ENGINE THROTTLE switch (SLOW-FAST)
on the control panel or on the remote control pendant. Vibrator frequency corresponds
to engine speed according to the table shown below:
G. SHUT DOWN
1. Stop the vibrator.
2. Allow the diesel engine to run for five minutes at 1500 RPM.
3. Reduce speed to low idle for about thirty seconds.
4. Stop the engine by turning the ENGINE START switch to OFF. (Engine may also be
stopped by pushing in the EMERGENCY STOP button on the Control Pendant.)
pressure over time. Therefore, it is not recommended to leave the vibrator clamped
to a pile when the diesel engine is not running.
ENGINE RPM VIBRATOR VPM
2100
1600
2000
1525
1700
1300
1500
1150
1050
If the diesel engine is shut down while the vibrator is clamped to
a pile, the clamp check valve will keep the vibrator clamped to
the pile. However, system leakage could result in a loss of clamp
III-6
OPERATING
INSTRUCTIONS
800
Advertisement
Table of Contents
