F631707F Force COVER-25.00 Inch Kingpin Shock Mount

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 Gauges Give Wrong Readings.13. PSG Governors. a. Engine Speed Does Not Have Stability.b. Vibration At Governor Output Shaft.c. Fuel Control Response When The Engine Is Started Is Not Acceptable.d. Engine Has Slow Response To A Change In Speed Setting Or Load.e. No Output From Governor.f. Engine Will Not Drive Full Rated Load.g. Load Sharing Between Paralleled Units Is Not Correct (One unit on zero droop all others on droop).h. Load Sharing Between Paralleled Units Is Not Correct (all units on droop).14. Automatic Start/Stop Systems.CONTACTOR SWITCH FOR WATER TEMPERATURE DOES NOT ACTIVATE SHUTOFF SOLENOID CONTACTOR SWITCH FOR WATER TEMPERATURE ACTIVATES SHUTOFF SOLENOID AT WRONG TEMPERATURE CONTACTOR SWITCH FOR OIL PRESSURE FAILS TO ACTIVATE SHUTOFF SOLENOID SHUTOFF SOLENOID FAILS TO STOP ENGINE SHUTOFF SOLENOID PREVENTS ENGINE START CLUTCH WILL NOT ENGAGE (SLIPS), HEATS OR LEVER MOVES TO RELEASED POSITION CLUTCH SHAFT HAS TOO MUCH END PLAY CLUTCH BEARINGS HAVE SHORT SERVICE LIFE MECHANICAL SHUTOFF FAILS TO STOP ENGINE BECAUSE OF LOW OIL PRESSURE MECHANICAL SHUTOFF DOES NOT STOP ENGINE WHEN COOLANT TEMPERATURE IS TOO HIGH MECHANICAL SHUTOFF WILL NOT LET ENGINE START ELECTRICAL GAUGES GIVE WRONG READINGS ENGINE SPEED DOES NOT HAVE STABILITY VIBRATION AT GOVERNOR OUTPUT SHAFT FUEL CONTROL RESPONSE WHEN THE ENGINE IS STARTED IS NOT ACCEPTABLE ENGINE HAS SLOW RESPONSE TO A CHANGE IN SPEED SETTING OR LOAD NO OUTPUT FROM GOVERNOR ENGINE WILL NOT DRIVE FULL RATED LOAD LOAD SHARING BETWEEN PARALLELED UNITS IS NOT CORRECT (one unit on zero droop all the others on droop) LOAD SHARING BETWEEN PARALLELED UNITS IS NOT CORRECT (all units on droop) The charts that follow give some of the problems and probable causes for trouble with automatic start/stop systems.AUTOMATIC START/STOP SYSTEM Governor Linkage Adjustments
3406B Linkage Adjustment
1. Put actuator output shaft (5) in the SHUTOFF position (full clockwise). Install lever (6) so angle (4) between the lever and vertical is 18°.2. Hold lever (6) in the SHUTOFF position. Adjust rod assembly (3) so that when it is connected to lever (1) the angle (2), between the lever and vertical, is 28°.3. Check to make sure the linkage moves freely.
EG-3P ACTUATOR (3406B)
1. Lever. 2. Angle. 3. Rod assembly. 4. Angle. 5. Output shaft. 6. Lever.3406 Linkage Adjustment
1. Put actuator output shaft (5) in the SHUTOFF position (full clockwise). Install lever (6) so angle (4) between the lever and horizontal is 30 5°.
EG-3P ACTUATOR (3406)
1. Lever. 2. Angle. 3. Rod assembly. 4. Angle. 5. Output shaft. 6. Lever.2. Keep lever (6) at SHUTOFF. Adjust rod assembly (3) so that when it is connected to lever (1) angle (2), between the lever and horizontal, is 40°2'.3. Check to make sure the linkage works freely.3408 & 3412 Linkage Adjustment
1. Put actuator output shaft (4) in the SHUTOFF position (full counterclockwise as seen from left side of engine).2. Install lever (1) so angle (2) between the lever and horizontal is 45 5°.
EG-3P ACTUATOR
1. Lever. 2. Angle. 3. Rod assembly. 4. Output shaft. 5. Lever.3. With both levers (1 and 5) in the SHUTOFF position (full counterclockwise as seen from left side of engine), adjust rod assembly (3) to fit between them.4. Check to make sure the linkage works freely.Fuel Rack Setting
Use the same procedure given for fuel rack setting of PSG Governors to set the rack on engines with this EG-3P Governor Actuator.Shutoff And Alarm System Components
Contactor Switch For Oil Pressure
3P1564 Pressure Gauge (0 to 60 psi).3B7734 Pipe Nipple, 1/8 in. X 3.5 in.3B6483 Cap.Two 3B7263 Pipe Nipples, 1/8 in. X 2 in.Two 3B9389 Shutoff Cock Fittings.Two 1F9369 Tees.44914 Tee.Two 5K3772 Hose Assemblies.8S4627 Circuit Tester.
TEST EQUIPMENT
1. 3P1564 Pressure Gauge (0 to 60 psi). 2. 3B7734 Pipe Nipple. 3. 3B6483 Cap. 4. Oil supply line. 5. 3B7263 Pipe Nipple. 6. 3B9389 Shutoff Cock Fitting. 7. 3B9389 Shutoff Cock Fitting. 8. 1F9369 Tees. 9. 5K3772 Hose Assemblies. 10. 44914 Tee.Test Procedure
1. Remove th cover of the contactor switch and disconnect the wires from the normally closed (B or Blue) terminal.2. Disconnect the oil supply line from the contactor switch and install the test equipment as shown.3. Connect the 5K3772 Hose from tee (10) to the contactor switch. Put the end of the other 5K3772 Hose in a pan.4. Connect the 8S4627 Circuit Tester between the common terminal and the normally closed terminal. The light of the circuit tester will be activated.5. Close shutoff fitting (7) and open shutoff fitting (6).6. Look at the pressure gauge, start the engine and run it at low idle rpm. The light must go out, with an increase in oil pressure, at the specification of the switch.7. Close shutoff fitting (6) and slowly open shutoff fitting (7). The light must be activated, with a decrease in oil pressure, at the specification of the