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
A-1C. ENGINE OPERATION (Continued...)
Altitude Operation
The fuel system settings and altitude limits are stamped on the engine information plate.
When an engine is moved to a higher altitude, these settings must be changed by your
Caterpillar dealer in order to prevent damaging the turbocharger, and to provide maximum
engine efficiency. If the engine is moved to a lower altitude than that which is stamped on the
engine information plate, the engine can be operated safely; however, it will deliver less than
rated horsepower, and the fuel settings should be changed by your Caterpillar dealer to obtain
rated horsepower.
Stopping
1. Flywheel clutch operation: Quickly pull the clutch lever to the released position.
2. Reduce engine speed to half speed. Run for 5-10 minutes to cool engine.
3. Reduce engine speed to low idle.
4. Observe the crankcase oil level while the engine is idling. Maintain the oil level between
the ADD and FULL marks on the side of the dipstick stamped, CHECK WITH ENGINE
RUNNING. See the LUBRICATION AND MAINTENANCE SECTION.
5. Stop the engine.
After Stopping Checks And Procedures
1. Fill the fuel tank. See the LUBRICATION AND MAINTENANCE SECTION: Fuel Tank
Maintenance.
2. Drain the raw water system if below freezing temperatures are expected; see: Draining
Raw Water System.
3. If below freezing temperatures are expected, allow the engine jacket water expansion tank
to cool, then check the coolant for proper antifreeze protection. Add permanent-type
antifreeze, if required.
4. Repair any leaks, make minor adjustments, tighten loose bolts, etc.
5. Observe the Service Meter reading. Perform the periodic maintenance as instructed in the
LUBRICATION AND MAINTENANCE CHART.
- APPENDIX A -
CUMMINS 6CT8.3 ENGINE
Page A-5
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