differential service

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Across
  1. 4. semi-circular instrument used to measure angles
  2. 6. a crown and pinion are a __________ set
  3. 8. oil that requires more frequent service intervals
  4. 11. measure of a fluids resistance, how runny or thick a fluid is
  5. 14. stubby shaft with helical gear teeth that mesh with ring gear
  6. 15. as a crack continues to grow, this mark design is formed in the fracture pattern
  7. 17. catastrophic failures that result from excessive torque applied to a shaft or beam
  8. 21. film on moving parts, cool components from friction, suspends dirt and particles
  9. 22. failures identified by cracked, pitted, or spalled tooth surfaces
  10. 23. original cause of failures
  11. 24. a failure that isn't immediate
Down
  1. 1. lube that extends service intervals and adapt better to temperature extremes.
  2. 2. the intermesh contact surfaces between a pair of mating teeth
  3. 3. when oil level is at proper level it is at the bottom of this
  4. 5. tool to measure back lash and end play
  5. 7. large helical gear attached to a carrier
  6. 9. looking and checking components for wear
  7. 10. amount of movement between ring and pinion gears
  8. 12. smaller gears attached to a cross that provide the differential action
  9. 13. failure generally caused by over-loading beyond rated capacity or abusive handling over rough terrain
  10. 16. plug on the bottom of the carrier
  11. 18. failures that result from old age or excessive wear
  12. 19. a failure caused but a sudden application of force
  13. 20. failures result from shock loading when a spinning wheel’s motion is suddenly arrested or by lubricant throw-off from rotating components.