Presentation on theme: "2013 Texas FFA Area Tractor Technician CDE Part II: Diagnosis of Components."— Presentation transcript:
2013 Texas FFA Area Tractor Technician CDE Part II: Diagnosis of Components
Presentation Contents 20 components Make & model provided when applicable Appropriate tools provided 5 T-F statements per component
1: Connecting Rods
1.Connecting Rod “A” is made from steel. 2.Connecting Rod “B” is made from aluminum. 3.Connecting Rod “B” shows signs of overheating. 4.Connecting Rod “B” shows signs of galling. 5.Connecting Rod “B” is suitable for continued use.
2: Crankcase Oil & Container DO NOT SHAKE OIL SAMPLE!!! Round Magnet
2: Oil Sample & Container 6.10W-30 is a single grade motor oil. 7.API service is labeled “LE” on the container. 8.Oil sample is contaminated with water. 9.Oil sample is contaminated with metal. 10.Oil sample is suitable for continued use.
3: Thermostat & Gasket 11.Gasket has never been installed. 12.Gasket requires additional sealant. 13.Gasket should be returned to service. 14.Thermostat opens at 180 degrees Fahrenheit. 15.Corrosion has caused a seep hole in the thermostat.
4: Camshaft 16Camshaft is for a 3 cylinder engine. 17Camshaft gear shows excessive wear. 18Journal marked “B” shows signs of galling. 19Cam lobes exhibit excessive wear. 20Camshaft should be returned to service without repair.
5: Piston Ring Ford Ring Review ring for wear and abnormalities
5: Piston Ring 21This is an example of a high compression piston ring. 22The ring is bent, and should not be repaired. 23Function of this ring is to apply oil to the cylinder wall. 24Ring shows excessive wear and/or damage from disassembly. 25Ring should be returned to service.
6: Valve John Deere 8520 Perform visual inspection
6: Valve 26Valve is an intake valve. 27Valve shows carbon build up. 28Valve face indicates heavy wear. 29End of valve stem shows excessive wear. 30Valve should be returned to service without repair.
7: Piston Assembly Visually inspect components
7: Piston Assembly 31Piston shows signs of galling. 32Piston shows damage as a result of metal fragments inside cylinder. 33Piston shows signs of overheating. 34A problem exists between the wrist pin & connecting rod. 35Piston, connecting rod and wrist pin are suitable for continued service.
36Maximum freeze protection is a mixture of 70% antifreeze and 30% water. 37As per label, this coolant does not contain ethylene glycol. 38Given cooling system capacity is 10 quarts. Four quarts of antifreeze is required to protect to a temperature of minus 12 degrees Fahrenheit. Test coolant sample: 36Coolant provides protection to minus 20 degrees Fahrenheit. 37Coolant provides boil over protection to 262 degrees Fahrenheit.
9: Sleeve Visually inspect component Tools: telescoping gauge and micrometer Line marked on sleeve for location of measurement
9: Sleeve 41This is an example of a dry sleeve. 42A ridge has formed as the result of the piston at the top of the sleeve. 43Average internal diameter at position A is inches. 44Average internal diameter at position A is inches. 45Piston is suitable to return to service without repair.
10: Fuel Filter Review filter labels “gasoline poured into filter to produce recognizable gasoline odor”
10: Fuel Filter 46Maximum flow of filter is 18 gallons per minute. 47Filter gasket requires lubrication prior to installation. 48Filter should be tightened by hand 1 and ¾ turns after gasket contacts flange surface. 49Filter has been used in a gasoline engine. 50Filter and gasket are both suitable for continued use.
11: Wiring Diagram Ford 5610 Review diagram
11: Wiring Diagram 51Item # 21 & 22 are speakers that are attached to a cd player/radio. 52Item # 4 has 2 bulbs in a single housing. 53Item #23 is the clock and is grounded to the chassis with a purple wire. 54The windscreen wiper motor grounds to the frame through the cab harness connector. 55The green wire that feeds the wiper motor also feeds the clock.
12: Fuel pump Case/New Holland Visually inspect component
12: Fuel pump 56This injector pump was removed from a 4 cylinder engine. 57Item #1 is the fuel shut off solenoid. 58Item #2 is used for the throttle “wide open” adjustment. 59Item # 3 is used to adjust engine/pump timing. 60Injector timing should be adjusted with engine 1000 rpm.
13: Electrical Components Various applications Review objects
13: Electrical Components 61The item labeled “A” is a diode trio and requires 3 tests locations to diagnose. 62The item labeled “B” is a rectifier bridge and requires 12 test locations to diagnose. 63The item labeled “C” is an armature. 64The item labeled “D” is stator. 65The rotor has an open circuit.
14: Bearings Inspect each bearing and/or component
14: Bearings 66Bearing “A” is a plain or friction bearing, that can support radial and axial loads both. 67Bearing “D” is an antifriction bearing that can support radial and axial loads both. 68Bearing “B” is a friction bearing that uses a clamp fit for installation. 69Bearing “C” is a friction bearing that has seized and spun in the connecting rod cap. 70The bearing race shows excessive wear due to corrosion or metal fatigue and should be replaced.
15: Assorted Tools
71The tool labeled “A” is used to clean piston ring grooves. 72The tool labeled “B” is used to remove 1/4”, 6 point nuts and bolts. 73The tool labeled “C” is used to align clutch disks during installation of pressure plate. 74The tool labeled “D” are used to crimp solderless wiring terminals. 75The tools labeled “E”, “F” & “G” are all used to remove broken fasteners.
16: MSDS Sheet MSDS Sheet
16: MSDS Sheet 76According to the MSDS sheet, ULSD is identified as a Toxic, Combustible liquid. 77The flammability rating of the ULSD is “Extreme.” 78According to the First Aid measures, if ULSD is ingested, vomiting should be induced. 79According to the MSDS sheets, the supplied gloves are acceptable as hand protection. 80According to the MSDS sheets toxicological information, repeated over exposure can cause liver & kidney damage.
17. Turbocharger 81This turbo charger is a model HX35 that is manufactured for Holset. 82The turbo charger is an exhaust gas driven air compressor. 83The turbo charger uses engine coolant to prevent bearing and shaft overheating. 84In the event that the turbine blades become damaged, it is acceptable to straighten them. 85The bearing clearance for axial movement is within specifications.
18: Belts John Deere Tractors Specification Sheets
18: Belts 86Belt “A” is a “V type belt. 87Belt “B” is a “serpentine” or “V- ribbed” type belt. 88Belt A is 26 inches long. 89Belt “C” shows signs of excessive damage and should be replaced. 90Belt “B” shows signs of excessive damage and should be replaced.
19: Operator’s Manual JD Manual
19: Operator’s Manual 91John Deere 5000 series tractors should have the fuel filter replaced at every 500 hours. 92According to the Operators manual pg 145-3, Engine break in oil should be changed after the first 75 hours. 93The operators manual states that the “TOE-In should be adjusted to 1/8” to ¼”. 94According to page 80-3 of the operator’s manual, flood lamps should never be used while transporting the tractor due to the hazard of confusing drivers approaching the tractor from the rear. 95The purpose of the operator’s manual is to learn how to operate and service ALL equipment correctly.
20: Hydraulic Pump John Deere 420 Tool: feeler gauge Specifications sheets, service manual
20: Hydraulic Pump 96The oil pump is driven by the cam gear. 97The needle bearings should be removed, inspected and reinstalled to ensure continued service. 98The pump gears are interchangeable and can be replaced. 99The oil pump shows major damage and is not suitable for continued service. 100The pump cover bolts should be torqued to 24 to 28 ft. lbs.
Credits Thank you to Rick Elmore, Dr. Doug Kingman, and the “crew” of professionals for working with this CDE. Area Components used at: –TSTC Waco, TX –SHSU Huntsville, TX –WTAMU Canyon, TX
ACKNOWLEDGEMENTS Kirk Edney, IMS, developed the initial presentation SHSU provided the content and text