7032 SOUTH 196th - KENT, WA 98032 - (253) 872-0141 / FAX (253) 872-8710
OPERATION / MAINTENANCE MANUAL
MODEL 50 VIBRATORY HAMMER WITH MODEL 260 POWER UNIT
- APPENDIX A -
CUMMINS 6CT8.3 ENGINE
A-1B. STARTING THE ENGINE
CAUTION: Do not engage the starter when the flywheel is moving.
Electric Starting
1. Move the governor control lever to approximate half engine speed position.
2. Use starting aids if required.
3. Push the START button; or turn the HEAT START switch to the START position, depending
upon the control the engine has. Release the control as soon as the engine starts.
For generator sets, place the AUTO-MAN switch in the MAN position to crank the engine. As
soon as the engine starts, and the engine speed reaches 600 rpm and oil pressure is
approximately 22 psi (1.5 kg /CM2), the starter motor will disconnect from the circuit. (The
STOP position is used to stop the diesel engine.)
If the engine fails to start within 10 seconds, move the governor control lever to the fuel off
position, then continue to crank for 10 seconds. This will clear the cylinders of unburned fuel.
If the engine fails to start after 30 seconds of cranking, allow the engine to cool for 2 minutes
before repeating the starting procedure.
CAUTION: Prolonged cranking at low oil pressure can activate the mechanical safety shut-
off. If the reset lever is in the shut-off position, reset the mechanical shut-off control.
CAUTION: NEVER use starting aids when the engine is warm and running.
Air Starting
1. Open and close the bleed valve on the bottom of the air tank to drain condensation and
oil carryover.
2. Check the air supply pressure. The air start must have 100 PSI (7 kg/cm2) to operate
properly.
3. Keep oil level, in the oiler jar, at least half full. Add oil if necessary.
4. Push the air valve control in to crank the engine. As soon as the engine starts, release the
valve.
Page A-2
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