DSL 845 - Heavy Equipment Repair

1. Demonstrate safe use of following shop tools
   1. Jack and jack stands
   2. Hoists
   3. Battery chargers
   4. Welder
   5. Cutting torch
   6. Grinders.
2. Service brake systems
   1. Inspect brake chambers, shoes, disc, and parking brakes (Visual inspection).
   2. Check for air leaks
   3. Repair worn shoes or discs
   4. Adjust all brakes (wheel and parking).
   5. Check brake pressures
3. Perform cooling system checks
   1. Pressure test radiator
   2. Check anti-freeze protection
   3. Inspect all hoses
   4. Inspect belt tension and condition 
4. Perform engine tune-up
   1. Remove and install injectors/nozzles
   2. Clean injectors
   3. Test injectors/nozzles
   4. Adjust valves
   5. Adjust injector travel
   6. Remove injection pump
   7. Re-time injection pump to engine
   8. Test turbo wastegate
   9. Test air-air cooler
5. Examine a drive line
   1. Inspect u-joint
   2. Inspect slip-shaft
   3. Measure driveline angles
6. Perform transmission inspection
   1. Check charge pressure
   2. Check pressure regulator setting
   3. Check forward/reverse clutch pressure
   4. Check high/low clutch pressure
   5. Measure hydrostatic transmission pressures
7. Perform differential inspection
   1. Check differential lock pressure
   2. Check FWD disengagement pressure
8. Perform safety and operational checks on the electrical system
   1. Inspect battery condition and connections
   2. Perform battery load test
   3. Measure voltage drop at starter
   4. Perform alternator output test
9. Perform hydraulic system checks on equipment
   1. Check fluid level and check for leaks
   2. Measure pump output
   3. Check relief valve pressure setting
   4. Check actuation times and record
10. Evaluate track condition
    1. Measure track pitch
    2. Measure track rollers
    3. Measure support rollers
    4. Measure bushing wear
    5. Inspect sprocket wear
    6. Adjust track tension
11. Investigate failure analysis
    1. Demonstrate knowledge of types of cast iron
    2. Demonstrate knowledge of difference between cast iron and steel
    3. List types of fractures
    4. List types of wear