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-3. Engine Troubleshooting (Continued...)
Possible Causes Remedy
22. LOW ENGINE OIL PRESSURE (Cont'd)
Clogged Oil Filter or Cooler Repair or replace as necessary.
Oil Pump Relief Valve Stuck Clean valve and housing. Replace if necessary.
23. HIGH LUBRICATING OIL CONSUMPTION
Oil Leaks Replace gaskets or seals and tighten all connections.
Excessive Oil to Intake See ITEM 15. Valve Guides.
Excessive Valve Guide Wear See ITEM 15.
Crankcase Oil Level Too High Avoid overfilling. Determine cause and drain excess
oil.
High Oil Temperature Check oil cooler bypass valve. Replace if defective.
Clean oil cooler core.
Worn Piston Rings and/or Liner Replace components as necessary.*
24. ABNORMAL ENGINE COOLANT TEMPERATURE
Combustion Gases in Coolant Determine point at which gases enter the system.
Repair or replace components as necessary.
Defective Water Temperature Regulator Check temperature regulator for proper opening
or Temperature Gauge temperature and correct installation. Check
temperature gauge. Replace if necessary.
Coolant Level Low Determine cause-replace leaking gaskets and
hoses. Tighten connections. Add coolant.
Air Flow Through Radiator Restricted Remove all debris from outer surface of radiator.
Defective Water Pump Check water pump impeller. Repair water pump as
necessary.
Radiator Small for Engine Application Install correct size radiator.
Fan Improperly Positioned in Shroud Position fan correctly.*
or Not Shrouded
*Authorized dealers are equipped with the necessary tools and personnel familiar with disassembly and assembly
procedures to perform these serviced.
Page A-21
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