Diesel Technology
Rating Scale:
Summary Sheet
3 Skilled - Works independently
2 - Limited skills - Requires assistance
1 - Skill undeveloped
0 - Instruction given, student not present Directions: Evaluate the student by entering the appropriate number to indicate the degree
Blank - No experience - No instruction or training of competency reached. Rate each task to reflect employability readiness.
I. Shop Safety 2.6 18. Install bearings and crankshaft. 2.5 9. Clean, paint, install rebuilt engine.
All Competencies will be completed by scoring 19. Remove, install, inspect, and align a 10. Perform engine break-in steps and load
a 100% on the following tests: 2.3 cylinder liner. 2.3 test on dyno.
Drill Press; Grinder; Forklift; Pressure Washer; 20. Check and adjust oil pressure on a diesel 11. Diagnose and test diesel engine electronic
Cabinet Washer; Glass Beader; Welding -MIG 2.8 engine. 1.9 systems.
& ARC; Cutting and Brazing; MSDS - basic; 2.9 21. Change oil filter. 12. Test for exhaust gas and air leakage in
General Shop Safety 2.8 22. Inspect cooling system (radiator, hoses, caps). 1.9 cooling system.
2.7 23. Test thermostat action. 2.1 13. Service valve guides, seats, and inserts.
2.5 II. (DT 105) Basic Engines 24. Inspect and rebuild fan clutches. 2.5 14. Perform a major diesel engine overhaul.
1. Remove and tag accessories; alternator, starter, 25. Inspect, disassemble, service, assemble and install a
2.7 hoses, etc. 2.3 turbocharger. 2.3 IV. (DT 110) Basic Power Train & Cab Air Conditioning
2. Remove and install a plain bearing (rods 26. Inspect, disassemble, service, assemble 2.3 1. Adjust clutch linkage free travel.
2.6 and mains). 2.0 air to air after cooler. 2.4 2. Adjust free travel on a pull type clutch.
2.5 3. Remove and install an anti-friction bearing. 27. Remove, replace, and adjust an engine brake on a 2.4 3. Remove a clutch assemble.
2.7 4. Install radial lip type seal. 2.1 diesel engine. 2.4 4. Inspect a clutch disc.
2.3 5. Remove, inspect and install a cylinder head. 28. Remove, inspect, reinstall a blower. 2.4 5. Inspect pressure plate cover.
2.5 6. Disassemble and service a valve train. 2.6 6. Inspect a pilot bearing and pilot bushing.
2.2 7. Assemble a cylinder head. III. (DT 220) Major Diesel Engine Overhaul, Dyno 7. Remove, inspect, repair, and reinstall a
2.8 8. Remove piston and connecting rod assembly. 2.3 Testing & Tune-Up 2.6 15 1/2 inch dual disc clutch.
2.8 9. Remove piston rings and piston from rod. 1. Complete a checklist before starting 2.4 8. Check flywheel runout.
2.9 10. Clean pistons. engine, during normal engine operation, and 2.8 9. Check a mechanical transmission fluid level.
2.3 11. Inspect and measure pistons for wear. 2.5 before stopping engine. 10. Remove and disassemble a mechanical
2.8 12. Install rings and assemble piston to rod. 2.3 2. Test engine cylinder compression. 2.4 transmission.
13. Inspect piston pin and connecting rod bushing for 2.5 3. Test and check air intake system . 2.4 11. Inspect transmission parts.
2.4 serviceability. 4. Check crankcase pressure, exhaust back 2.2 12. Reassemble a mechanical transmission.
2.7 14. Remove a camshaft, camshaft gear. 2.3 pressure. 2.2 13. Disassemble a twin counter shaft transmission.
2.0 15. Adjust valve clearance. 2.3 5. Tune up a diesel engine. 2.3 14. Inspect twin counter shaft transmission parts.
16. Remove, inspect, and install camshaft on a diesel 6. Diagnose diesel engine operational complaints 15. Reassemble and time a twin counter shaft
2.5 engine. 2.4 (mechanical system). 1.9 transmission.
17. Remove, inspect, and measure a 2.3 7. Determine cost of engine overhaul. 2.5 16. Remove and replace a propeller shaft.
2.4 crankshaft and bearings. 2.6 8. Compile a major overhaul parts list.
1 Revised 10/26/2011
17. Disassemble, inspect, and reassemble a VI. (DT 210) Hydraulics, Hydrostatic Drive, Steering & 4. Demonstrate drum brake removal, cleaning,
2.4 u-joint with bolted ends. 2.6 Suspension Systems resurfacing drum, measuring drum, grinding
2.4 18. Remove and replace a cross and roller u-joint. 2.9 1. Clean and inspect a vented and closed reservoir. 2.7 shoe to fit drums, and install brake shoes.
2.3 19. Align and time a telescoping drive line. 2.8 2. Replace a reusable hose end. 2.2 5. Check self adjusters, install brake drum.
2.4 20. Remove a differential case and gear assembly. 3. Disassemble, clean, and reassemble a 2.0 6. Bleed brake system with pressure bleeders.
21. Disassemble a differential case and gear 2.8 hydraulic jack. 7. Vacuum test, inspect for leakage, a power
2.5 assembly. 4. Perform general maintenance procedures on a 2.0 assist booster.
22. Clean and inspect a differential case and 2.7 hydraulic system. 2.4 8. Remove and replace power assist booster.
2.5 gear assembly. 5. Disassemble, inspect, and reassemble a gear and 9. Check power assist booster push rod for
2.1 23. Adjust drive pinion bearing preload. 2.7 vane pump. 2.6 adjustment.
2.2 24. Reassemble a differential case and gear . 6. Disassemble, inspect, and reassemble a 10. Disassemble, measure parts for wear, assemble, and
2.1 25. Adjust differential bearing preload. pressure comp variable displacement piston 2.5 test air compressor.
2.2 26. Check gear backlash and tooth pattern. 2.6 pump. 11. Remove air governor, disassemble, clean
2.2 27. Install differential in differential housing. 2.7 7. Test a relief valve. and inspect parts, assemble, install, and
2.7 8. Test and repair a control valve. 2.8 adjust pressure .
V. (DT 205) Torque Converters & Power Shift 9. Disassemble, inspect, test for leakage and 12. Identify the three reservoirs, remove, clean, and
2.6 Transmissions 2.9 reassemble a hydraulic cylinder. 2.9 install one-way check valve.
1. Demonstrate the use of special tools and 10. Disassemble, inspect, and reassemble a gear motor 13. Test, remove, and install safety valve on
2.8 pullers. 2.6 and piston motor. 3.0 reservoir.
2. Disassemble, clean, inspect and rebuild single stage 11. Disassemble, clean, inspect, reassemble, and adjust 14. Remove and install air application valve on
2.9 torque converter. 2.3 a hydrostatic transmission. 3.0 vehicle.
3. Disassemble, clean, inspect and rebuild multi stage 2.1 12. Inspect, clean, and test a heat exchanger. 15. Check for air leaks and troubleshoot air
2.7 torque converter. 2.4 13. Test a hydraulic pump. 2.9 application valve.
2.3 4. Interpret the results of a stall test. 2.1 14. Locate a problem in a hydraulic system. 2.8 16. Check quick release valve for air leaks.
5. Troubleshoot and evaluate operations of a power 15. Disassemble, inspect, and reassemble a pressure 17. Remove brake drum, wheel bearing, and
2.5 shift transmission. 2.5 control valve. measure brake drum, resurface brake drum,
6. Disassemble, clean and rebuild a countershaft 16. Disassemble, inspect, and reassemble a clean brake drum, remove brake shoes, remove
2.9 power shift transmission. directional control valve (includes Electronic 2.8 slack adjuster, remove S cam on cam brake.
7. Formulate a parts list after analyzing the inspection 2.4 control valves). 18. Check brake shoes for anchor pin wear, brake shoe
2.8 of a transmission. 17. Disassemble, inspect, and reassemble a 2.8 spread, and cracked welds.
8. Using air pressure, test a clutch pack for proper 2.5 flow control valve. 19. Check S cam for wear, remove cam bushing,
2.8 operation. 18. Perform heavy equipment wheel install S cam bushing, remove cam rollers,
9. Chart the power and oil flows of a countershaft 2.7 alignment on trucks, tractors, etc. reinstall cam rollers, install S cam, install seal
2.6 power shift transmission. 19. Check, adjust and rebuild manual and wear ring, install brake shoes, install bearing
10. Calculate gear ratios. 2.4 power steering systems. seals, install brake drum, and adjust wheel
2.7 11. Calculate gear rotation. 2.8 bearing, on cam brakes.
12. Disassemble, clean, inspect, and rebuild a 2.6 VII. (DT 115) Brakes - Hydraulic & Air 20. Remove brake drum, brake shoes, brake
2.7 planetary transmission. 1. Disassemble, inspect, and reassemble chambers, wedge and roller assembly,
13. Analyze the test results of an electronic controlled 2.3 master cylinder. 2.8 adjuster, and plunger on wedge brakes.
1.7 transmission. 2.8 2. Install master cylinder and bleed system. 21. Check spider for cracks and bolt holes for
3. Demonstrate how to install wheel cylinder, lines, 2.9 elongation.
2.9 hoses, valves. 22. Check brake shoes for cracks or broken
welds, adjusting pawls, and check activator for
2.8 scores on Wedge brakes.
2 Revised 10/26/2011
2.7 23. Reassemble brakes. 2.1 IX. (DT 215) Diesel Fuel Injection System 2.4 XI. (DT 200) Workplace Skills
24. Check tractor Protection Control valve for 2.7 1. Measure specific gravity of diesel fuel. 2.9 1. Develop a personal resume.
leaks, remove from vehicle, install control 2.6 2. Isolate faulty injectors/nozzle. 2.6 2. Complete a job application.
2.5 valve. 2.7 3. Remove, service, test, and install nozzle. 2.3 3. Practice good communication skills.
2.3 25. Remove, inspect, and replace disc brakes. 2.6 4. Bleed fuel system. 2.3 4. Develop and demonstrate interview skills.
5. Remove, overhaul, and replace distributor type 2.5 5. Recognize different wage structures.
2.3 VIII. (DT 120) Electrical Systems 2.0 injection pump. 6. Recognize basic OSHA responsibilities, both employee
2.2 1. Demonstrate proper use of DVOM. 6. Remove, overhaul, and replace in-line type injection 2.0 and employer.
2.6 2. Test a fuse for proper operation. 2.5 pump. 7. Describe benefits in the Diesel Tech field
2.5 3. Test a circuit breaker for proper operation. 7. Remove, overhaul, test, replace and adjust injector 2.3 for employees.
2.2 4. Test operation of multi throw multi pole switch. 1.7 (Detroit). 2.5 8. Describe and practice good work ethics.
2.3 5. Test a variable resistor for proper operation. 8. Remove, and install PT injectors / proper 9. Examine the structure of shop operating overhead
1.8 6. Test the operation of a relay. 1.6 adjustment. 2.0 expenses.
7. Test a diode for being forward bias or 1.5 9. Install PT fuel pump and adjust.
2.3 reverse bias. 10. Connect software and diagnose electric
2.0 8. Test a step resistor. 2.0 fuel system.
1.5 9. Read and interpret wiring schematics. 1.9 11. Remove and replace electric unit injector.
2.8 10. Wire trailer light cord (pigtail). 1.1 12. Troubleshoot fuel splitter valve.
11. Use schematic to wire directional signal
3.0 control handle. 2.0 X. (DT 110) Power Trains & Cab Air Conditioning
2.1 12. Solve problems using Ohm's Law. 2.0 1. Demonstrate diagnosis of a system failure
2.5 13. Wire parallel circuit system.
2. Demonstrate proper troubleshooting
2.5 14. Wire series circuit system. procedures of electrical components:
2.6 15. Connect batteries in parallel. measure voltage drop, measure ohms,
2.5 16. Connect batteries in series. measure current draw of compressor clutch,
1.9 17. Connect batteries series/parallel. test relays and switches, test A.C. switch, check
18. Clean and service batteries using recommended 2.0 circuit breaker relay, test blower motor
3.0 procedures. 3. Demonstrate proper troubleshooting
2.7 19. Measure specific gravity and adjust the reading. procedures of temperature control system: test
2.6 20. Demonstrate load test battery. vacuum circuit and motor, test heater shut-
21. Demonstrate three minute charge test, off switch, check thermostatic control switch,
ground cable lost voltage test, starter cable 2.0 check VIR and STV
lost voltage test, starter solenoid switch test,
4. Demonstrate proper servicing procedures of
starter cranking voltage test, and starter
all air conditioning components: Replace
2.0 current draw test.
drive belt, repair A.C. hoses, compressor, shaft
1.9 22. Remove, disassemble, and repair alternator.
seal, clutch, and clutch bearing; Check
23. Test rotor, stator, and diodes for shorts, open compressor oil, drain, evacuate and recharge
2.1 circuits, or grounds. compressor; Flush A.C. system; replace dryer or
24. Test transistorized regulator. accumulator, condenser, and evaporator;
2.5 25. Test alternator output. Clean evaporator condenser; Replace "O" ring,
2.0 26. Remove, disassemble, and test starter parts. repair service valves and replace expansion
27. Reassemble starter and check starter no 2.0 valve; and/or orifice tube.
2.1 load test.
1.6 28. Troubleshoot starter solenoid.
3 Revised 10/26/2011