Diamond Products CC7074 - Manual (Page 19)

16
Vernier Throttle Operation
1. Turn
the Hold/Release knob counterclockwise to
loosen the knob.
2. Turn the throttle counterclockwise to increase the
engine/blade speed, or push in the throttle’s spring-
loaded tip and pull the throttle out to increase the
engine/blade speed. Turn the throttle clockwise to
decrease the engine/blade speed, or push in the
throttle’s spring-loaded tip and push the throttle in to
decrease the engine/blade speed.
3. Turn the Hold/Release knob clockwise to tighten the
knob and secure the engine/blade speed.
Tasks Prior to Starting the Engine
Complete the tasks listed below prior to starting the
engine to ensure a safe start:
 Check fluids and fill to appropriate levels.
 Turn off controls and switches.
 Remove tools from area.
The engine will not start unless the following tasks are
completed:
 Place speed control lever at Stop.
 Pull up emergency stop button.
 Close radiator door.
Starting the Engine
Notice: In an emergency, press the emergency stop
button to immediately stop the engine and any saw
movement!
1. Increase the engine speed to half throttle.
2. Insert the key into the ignition and turn it to Glow;
hold in this position until glow light turns off, turn the
key to Start and release when the engine starts.
Refer to the chart in the engine manual when using
the glow plug in temperatures below 23°F (-5°C).
Note: If the engine does not start within 10 seconds,
turn off the key and try again approximately 30
seconds later. Refer to Appendix D or the engine
manual for troubleshooting recommendations after
several failed attempts.
3. Let the engine warm up. Check all warning lights
and turn off the engine immediately if there are any
problems prior to operating the saw.
Stopping the Engine
CAUTION
 DO NOT leave the saw unattended until the
engine is off and the blade has stopped
spinning.
1. Place the speed control lever at Stop and raise the
blade from the cut.
2. Turn off all controls, switches, and water.
3. Decrease the engine speed to idle for five minutes to
cool down the engine after full load operation.
4. Turn the ignition key to Stop and remove the key.
Speed Control Lever
The speed control lever moves the saw forward and
backward at up to 250 ft/min. Note: The engine must be
running at half throttle or greater to move the saw using
the speed control lever.
Figure 11: Speed Control Lever
1. Slowly push the lever toward Forward to move the
saw forward and release when at the desired
traveling speed.
2. Slowly pull the lever toward Reverse to move the
saw backward and release when at the desired
traveling speed.
3. Place the lever at Stop to put the saw in neutral. DO
NOT assume at any time that the neutral position will
act as a brake when saw is running. Note: Always
start the engine with the speed control lever at Stop.