1 / 28

UNIT 6

UNIT 6. Tractor Hitches PTO’s Hydraulics. www.precisiongps.com. Tractors are Powerful Machines. Get ‘er done!. Tractor Hook-Up Parts. Hydraulic Plugs. 3-Point Hook-Up. PTO Shaft. Drawbar. THE DRAWBAR. Designed to pull loads Adjust to the correct height to ensure safe towing

marva
Download Presentation

UNIT 6

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. UNIT 6 Tractor Hitches PTO’s Hydraulics www.precisiongps.com

  2. Tractors are Powerful Machines Get ‘er done!

  3. Tractor Hook-Up Parts Hydraulic Plugs 3-Point Hook-Up PTO Shaft Drawbar

  4. THE DRAWBAR • Designed to pull loads • Adjust to the correct height to ensure safe towing • Position so the PTO shaft is straight http://www.four-h.purdue.edu/tractor_safety/

  5. 2 TYPES #1- Stationary • Extends backward or forward • Two or three positions possible with pin movement • Must be adjusted to PTO http://www.four-h.purdue.edu/tractor_safety/

  6. 2 TYPES continued #2- Swinging • Swings in direction tractor turns. • Must be secured in fixed position to travel on the road or when using PTO. • Can be locked in position to be used as a fixed type. http://www.four-h.purdue.edu/tractor_safety/

  7. Drawbar Safety • Must adjust for PTO use • ONLY attach to drawbar, 2-point, or 3-point hitch if pulling load (Never to any other part). • Raising height of bar excessively can cause overturn http://www.four-h.purdue.edu/tractor_safety/

  8. Proper Hitching Procedures: • Back tractor slowly into place. • Place tractor into neutral and engage brake before dismounting. • Connect directly behind tractor. • Use lynch pin or hitch pin for locking, along w/ cotter pin or clip. • Always hitch your own tractor. Hitch Pin www.johnnyproducts.com Lynch Pin www.hollywoodracks.com

  9. THREE POINT HITCH PARTS: Top Link Two Lower Draft Links http://www.four-h.purdue.edu/tractor_safety/

  10. Benefits of 3-Point Hitch • Easy adjustment of load with control levers. • Level implement laterally. • Adjust implement pitch. • Most hitches equipped with sway blocks to restrict side-to-side motion.

  11. Hitching Safety • NEVER work under a raised implement. • NEVER depend on a hydraulic valve for your safety. • Place supports under implement. • Stop and shut down tractor before performing maintenance. • Be aware of location of others.

  12. How many different categories of Three-Point hitches are there? • Difference between categories is by size. CategoryMax. Drawbar Power I 20-45 hp II 40-100 hp III 80-225 hp IV 180-400 hp (This is on the test…)

  13. Quick Attachment Couplers • Used for fast connection and release of implements. • Make sure you hook hitch pins uniformly. • Check coupler for proper locking, cracks and wear.

  14. Power Take-Off (PTO) www.acs.aone.net

  15. 3 Types: • Continuous Running - operates when master clutch is engaged • Independent - transmission and PTO powered through separate clutches -PTO will still run when tractor is stopped or in motion • Transmission Driven - PTO runs only when tractor is in motion

  16. PTO & Drawbar Height Requirements Type PTO Speed Shaft Size #Teeth Height on PTO Continuous 540 r.p.m. 1 3/8” 6 14”* Independent 1000 r.p.m. 1 3/8” 21 16”* Transmission 1000 r.p.m. 1 ¾” 20 20”* *+/- 2”

  17. PTO Safety • Many accidents occur because of PTO • NEVER attempt to remove anything from PTO while it is in motion. • A tractor engine should always be shut off before leaving the operators seat to perform any adjustment, lubrication, or cleanout of implement www.osh.dol.govt

  18. PTO Shields • Developed to make tractor PTO operation safer. • Shields should always be kept in place when machine is running.

  19. PTO Shield Types • Master – prevent contact with PTO stub shaft • Stub shaft guard – enclose stub shaft when not being used • Tunnel Shield – attaches to master shield

  20. PTO Shields Types (cont.) • Integral-journal Shield – completely encloses PTO shaft and rotates with shaft • Fully shielded power shaft (1972) - completely covers universal joints and PTO shaft coupler

  21. What should you do if- • When working on someone’s farm and the boss tells you to use a piece of machinery, but the PTO shaft guard is missing. What should you do? • A- Perform the task without saying anything • B- Wrap the shaft in duct tape, because duct tape fixes everything! • C- Talk to your adult supervisor about the missing shield and tell them the shield needs to be put on before doing the assigned task.

  22. HYDRAULICS • Provides power for steering, brakes, lifting, and powering equipment • Uses tractor engine to operate hydraulic systems

  23. Hydraulics Safety • Check for leaks using a card as shown. • NEVER USE HAND OR FINGERS! • Escaping hydraulic under extreme pressure • Can penetrate the skin causing serious injury.

  24. REMOTE HYDRAULIC CYLINDERS • Single Acting - One pressure line • Double Acting -Two pressure lines - Driven by the tractors hydraulic pump • Flow adjustment possible

  25. Hand Signals Why do we use them? Accidents frequently occur due to…… • Equipment being loud • Can not hear each other • Universal communication

  26. Slow it down – decrease speed Move out – Take off This far to go Raise equipment Follow Me Stop http://www.four-h.purdue.edu/tractor_safety/

  27. Stop the Engine Start the Engine Come to Me Lower Equipment Speed Up http://www.four-h.purdue.edu/tractor_safety/

  28. CONCLUSION

More Related