FFA Agricultural Mechanics Contest
University of Missouri
50 points
Model 492 Haybine Mower-Conditioner (New Holland)
1. According to the operators manual, the drawbar should never be adjusted lower than:
A. 15 inches.
B. 12 inches.
C. 8 inches.
D. 5 inches.
2. According to the operators manual, the haybine should not be fastened to the tractor unless:
A. A " diameter hitch pin is securely fastened.
B. A 3/4" diameter hitch pin is securely fastened.
C. A 1" diameter hitch pin is securely fastened.
D. A 1 1/4" diameter hitch pin is securely fastened.
3. The haybine is forming poor or bunchy windrows. The most possible solution is to:
A. Raise the baffle until no bunching occurs.
B. Maintain 540 PTO RPM.
C. Look for a different solution, as neither A or B are correct.
D. Raise the baffle until no bunching occurs and maintain 540 PTO RPM.
4. The haybine sickle drive is knocking. The best possible solution is to:
A. Replace the worn bushing.
B. Replace the sickle bar.
C. Replace the gearbox.
D. Replace the worn bushing and the sickle bar.
5. The haybine is breaking knives and guards excessively. The best possible solution is to:
A. Re-align the guard, knives, and hold down clips.
B. Re-set the header flotation as it is presently set of stony fields.
C. Raise the cutting platform as you are cutting too low in stony conditions.
D. Evaluate all three options, A, B, & C, as each is capable of causing the problem.
6. The knife head bolt has broken on the haybine. You should order Ford New Holland part number:
A. 280269.
B. 280369.
C. 290369.
D. 291469.
7. The correct PTO speed for the haybine is:
A. 540 rpm.
B. 550 rpm.
C. 1,100 rpm.
D. 1,150 rpm.
8. How often should part tagged #8 be lubricated?
A. 2 hours
B. 6 hours
C. 8 hours
D. 10 hours
9. The part tagged #9 is a/an:
A. Universal joint.
B. Slip clutch.
C. PTO shaft.
D. Reel shaft bearing.
10. The part tagged #10 is a/an:
A. Left crop divider.
B. Push bar extension.
C. Anti-wrap ring.
D. Reel stop.
Model 3630 Spra-Coupe (Melroe)
11. According to the operator manual, the ball used when towing the spray-coupe should be rated at:
A. 10,000 lbs.
B. 12,000 lbs.
C. 10,000 kg.
D. 9,000 lbs.
12. The part tagged #12 is a/an:
A. Wing extension cylinder
B. Boom height cylinder
C. Boom stabilizer
D. Boom reinforcer
13. If an 8001flat fan nozzle is used for an application with 20 inch spacing, the nozzle height should be:
A. 17 - 19 inches.
B. 20 - 22 inches.
C. 26 - 28 inches.
D. 18 - 25 inches.
14. According to the operators manual, the rear tires should be inflated to:
A. 24 psi.
B. 32 psi.
C. 20 psi.
D. 40 psi.
15. According to the operators manual, item #15 should be lubricated every:
A. 8-10 hours.
B. Day.
C. 20 hours.
D. After every time the fuel tank is refilled.
16. If the Spra-coupe engine has little power or is running rough, which of the following is not a possible cause of the problem?
A. Dirt or water in fuel system.
B. Engine is hot.
C. Cylinder compression is low.
D. Fuel filter is dirty.
17. When troubleshooting the spray system, one of the problems is that there may be insufficient line pressure of spray output at full rated engine speed. One cause is that the pump belt is slipping. This should be corrected by:
A. Adjusting the belt tension or replace worn belts.
B. Replace the pump, consult a qualified dealer service person to do so.
C. You should do nothing about it.
D. Replace the belts, if worn, consult a qualified dealer service person to do so.
18. According to Teejet Ag spray products catalog, one should expect a 8001 flat fan spray nozzle at 30 psi and a travel rate of 6 mph to deliver:
A. 4.5 gallons per acre.
B. 5.3 gallons per acre.
C. 6.4 gallons per acre.
D. 5.0 gallons per acre.
19. A flat fan nozzle should be adjusted to allow:
A. 30 % overlap.
B. 0 % overlap.
C. 100 % overlap.
D. 50 % overlap.
20. Locate the part tagged #20. This is a/an:
A. Agitation control valve.
B. Main line valve.
C. Boom spray selector switch.
D. Spray pump drive belt.