1999 State Competition                                                       Contestant #___________________
FFA Agricultural Mechanics Contest                                   Contestant Name_______________
University of Missouri                                                         Chapter_______________________
50 points
 

MACHINERY

Directions: Use the Owners Manual and the promotional literature provided to answer the following questions about the machine displayed for you.



 

Cat 460 Lexion Combine

1. How wide is the threshing concave?

 A. 1400 mm (44.6 inches)
 B. 2000 mm (100.0 inches)
 C. 1700 mm (66.9 inches)
 D. 1100 mm (55.2 inches)

2. What model engine does the Lexion 460 have?

 A. Cat 3208
 B. Cat 3126
 C. Cat 3146
 D. Cat 3176

3. On the header control joystick what does (M 7) do?

 A. Reel up
 B. Pre-set Height on
 C. Header Engage
 D. Header Stop

4. What is the function of the item labeled #4?

 A. Adjust lower sieve
 B. Adjust upper sieve
 C. Adjust the concave

5. After starting the engine how long should you let the engine idle?

 A. 2 min.
 B. 10 min.
 C. 5 min.
 D. Don't need to let it idle

6. When cutting wheat, what should the concave gap be set at?

 A. 10 mm (0.4 inches)
 B. 12 mm (0.5 inches)
 C. 8 mm (0.3 inches)

7. What two engine oil weights does Caterpillar recommend to run in their engines?

 A. 15w40 and 10w40
 B. 15w40 and sae30
 C. sae30 and 10w30
 D. None of the above

8. Should the air filter be replaced every year regardless of condition?

 A.  Yes
 B. No

9. How often should grease fitting labeled #9 be greased?

 A. 100 hours
 B. 200 hours
 C. 50 hours
 D. 25 hours

10. When shelling corn, how fast should the threshing cylinder speed (RPM) be?

 A. 200
 B. 650
 C. 400
 D. 800

11. What is the function of the item labeled #11?

 A. Fuel cut off switch
 B. Battery disconnect switch
 C. Turbo booster switch
 D. Engage 4-wd switch
12. What is the function of the item labeled #12?

 A. Auto contour cylinder adjust
 B. Feeder house adjustment
 C. Lower rate adjustment
 

John Deere 4700 Sprayer

13. How much air should be in the front air spring?

 A. 47 psi
 B. 41 psi
 C. 55 psi
 D. 36 psi

14. What type of solution pump is on the sprayer?

 A. Centrifugal
 B. Roller
 C. Piston
 D. Diaphragm

15. Nozzles should be replaced when the flow rate has ____ by ____ from the desired rate at a given pressure.

 A. Increased, 20
 B. Increased, 30
 C. Decreased, 10
 D. None of the above.

16. What type of clothing is NOT acceptable when working in an environment where pesticides are present?

 A. Shorts
 B. Long sleeve shirt
 C. Long legged pants
 D. Shoes and socks

17. What type of nozzle is ideal for broadcast spraying?

 A. Hollow cone
 B. Flat fan
 C. Flood jet
 D. None of these

18. Is the ball valve labeled #18 open or closed?

 A.   Open
 B. Closed

19. What is the item labeled #19?

 A. Back flow valve
 B. Flow meter
 C. Foam marker control
 D. Flow regulator

20. Do you need to remove the monitor when you are storing the sprayer for the winter months?

 A.  Yes
 B. No

21. What is the rated horsepower of the 4700 sprayer?

 A. 300
 B. 225
 C. 185
 D. 200

22. What is stored in the tank labeled  #22?

 A. Clean water tank
 B. Tank rinse water
 C. Extra chemical storage
 D. Foam marker water

23. What is the function of the valve labeled #23?

 A. Fill rinse tank
 B. Quick fill valve
 C. Tank drain valve

Calculations

24. Note the capacity of the spray tank on the 4700 sprayer.   How many acres can you cover if you are applying 15 GPA?

 A. 56.5 acres
 B. 45.5 acres
 C. 50.0 acres
 D. Can't figure, need more info

25. When calibrating a 4700 sprayer,  1/2 gallon of water is collected in 60 seconds.  What is the tip flowrate in GPM?

 A. .50 gpm
 B. .75 gpm
 C. 1.25 gpm
 D. .15 gpm