CYLINDER HEAD AS 7N0848 - Caterpillar

Introduction; Troubleshooting
Troubleshooting can be difficult. On the following pages there is a list of possible problems. To make a repair to a problem, make reference to the cause and correction.This list of problems, causes, and corrections, will only give an indication of where a possible problem can be, and what repairs are needed. Normally, more or other repair work is needed beyond the recommendations in the list. Remember that a problem is not normally caused only by one part, but by the relation of one part with other parts. This list can not give all possible problems and corrections. The serviceman must find the problem and its source, then make the necessary repairs.1. Contactor Switch For Water Temperature Does Not Activate Shutoff Solenoid.2. Contactor Switch For Water Temperature Activates Shutoff Solenoid At Wrong Temperature.3. Contactor Switch For Oil Pressure Fails To Activate Shutoff Solenoid.4. Shutoff Solenoid Fails To Stop Engine.5. Shutoff Solenoid Prevents Engine Start.6. Clutch will not engage (slips), heats or lever moves to released position.7. Clutch shaft has too much end play.8. Clutch bearings have short service life.9. Mechanical Shutoff Fails To Stop Engine Because Of Low Oil Pressure.10. Mechanical Shutoff Does Not Stop Engine When Coolant Temperature Is Too High.11. Mechanical Shutoff Will Not Let Engine Start.12. Electrical Indicators Give Wrong Readings.13. Automatic Start/Stop Systems. a: No Supply Of Standby Current-Lockout Light Activatedb: No Supply Of Standby Current-No Lockout Lightc: Standby Current Supply Stops Before Normal Current Returnsd: Operation Of Standby System When Standby Current Is No Longer Needed Problem 1: Contactor Switch For Water Temperature Does Not Activate Shutoff Solenoid Probable Cause:1. Wrong Connections Connect battery to C and shutoff solenoid to NO connections. Check connections to other components or make installation of new wiring.2. Failure of Shutoff Solenoid Check