MODEL 66-80 VIBRATORY DRIVER/EXTRACTOR
III. OPERATING INSTRUCTIONS
C. STARTING AND WARMING UP ENGINE
1. Before starting the engine, read the CATERPILLAR OPERATION GUIDE
carefully. Follow the engine starting, operating and maintenance procedures
in that manual.
2. The diesel engine should not be started if the temperature of the hydraulic oil
is below 0°F (-18°C). If ambient temperatures below 0°F (-18°C) are
anticipated, an immersion heater for the hydraulic oil is available. Consult J&M
for details.
3. Turn the MAIN POWER switch on the control panel to on.
4. Pull out the ENGINE THROTTLE about half way. Pressing the button on the
end of the throttle allows rapid throttle adjustment. Turning the throttle allows
fine adjustment. Be sure the EMERGENCY STOP knob is fully pushed in.
5. Press and hold the SHUTDOWN RESET. Turn the ENGINE START switch to
START. Hold SHUTDOWN RESET in until engine oil pressure exceeds 30
PSI (2 BAR).
6. Adjust the throttle until the engine is running at 1500 RPM and allow engine to
warm up for five minutes. After the engine is warmed up, adjust throttle so
engine runs at 2100 RPM's under no load. The engine should hold 1900
RPM's under load.
7. Allow the temperature of the hydraulic oil to come up to at least 30°F (-1°C)
before starting the vibrator.
D. WARMING HYDRAULIC OIL
1. The vibrator should not be operated at full speed if the temperature of the
hydraulic oil is below 60°F (16°C).
2. If temperature is below 60°F (16°C), set the engine at 1500 RPM and press
the START button on the control pendant to start the vibrator. Allow the
vibrator to run until the temperature of the hydraulic oil exceeds 60°F (16°C).
III-4
