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Ferguson Tractor TO-20 Operation and Maintenance Manual

Minor adjustments on tractor and equipment often can be made
by the owner without the necessity of calling a serviceman. The
following suggested symptoms and their diagnosis and relief
may be helpful in correcting many difficulties.
APPL y STARTER
(with these
results):
Cranks
Engine starts
properly:
(A)
Overheats
(8)
Lacks power
(C)
Excessive fuel
consumption
(D)
Knocks
(E)
Excessive oil
consumption
Engine at Normal
Speed:
Engine does
Not start:
Disconnect spark
plug cable; hold
�-inch from
engine:
(F)
No spark
(G) Weak spark
(H) Good spark
(I)
(J)
Engine
misfires:
Continuous
misfiring in
one or more
cylinders
Erratic
misfiring
Turns but does
not crank Engine:
Refer to
(K)
Does not crank Engine, or
cranks Engine Improperly:
Refer to
(L)
(A) ENGINE OVERHEATS
Possible Cause
1. Radiator water level low
2. Cooling system clogged
3. Radiator core clogged
4. Radiator, water pump or block frozen
5. Radiator fins bent or clogged
6. Loose fan belt
7. Water pump leaks
8. Impeller in water pump broken
9. Defective thermostat
10. Oil level low
11. Improper timing
12. Excessive load
13. Too much antifreeze.
14. Heavy carbon deposits in cylinders
15. Brakes set or dragging
16. Carburetor improperly set
17. Collapsed radiator hose
Possible Remedy
Add coolant
Clean thoroughly
Clean thoroughly
Thaw out
Straighten and clean, being careful
not to damage tubes
Tighten belt or replace
See your Ferguson Dealer
See your Ferguson Dealer
Remove and replace
Add oil
Check timing-See page �5
Reduce load or shift to lower gear
Add water to radiator solution
See your Ferguson dealer
Adjust accordingly-See pages 31 and 32
Adjust carburetor-See page 18
Change hose