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OPERATION
COLD WEATHER OPERATION
•
If the tractor
is to be operated in tem-
peratures
of 32
0
F. or lower, observe the
following precautions:
Radiator Shutter (If Used)
If the tractor
is equipped with a radia-
tor shutter and heat indicator,
close the
shutter when starting
and regulate it as re-
quired to hold the indicator hand in the high
side of the "RUN" range.
Fuel System
Use only a high test winter grade gaso_'
line for starting.
Always keep the supply in
a tightly closed container to prevent the more
volatile portion from evaporating.
If the engine is equipped with a .primer,
prime the engine before starting,
using 4 to
5 strokes of the primer.
Fill the fuel tanks at the end of the day's
operation to prevent moisture
from collecting
in the tanks.
Lubrication
Follow closely the lubrication
instruc-
tions on
toeee
39
to
4.8.
Be sure to use the
specified grades of lubricants.
Batter-ies
Check the specific gravity of the battery
electrolyte
at frequent intervals
and keep as
fully charged as possible.
The efficiency of
the battery decreases
sharply with lowering
temperatures
and becomes
p
r'acbi ca
Ily
nil at
minus (.-) 40
0
F.
Do not attempt to start the
tractor
if the batteries
have been chilled to
minus (-) 20
0
F., unless the batteries
have
been heated.
Immersion
in warm water to
within an inch or 2 of the top of the battery
cases is a satisfactory
means of warming the
batteries.
Ignition
If difficulty is experienced
in starting,
remove the spark plugs and wipe them off to
remove any condensation.
Then check the
gap of the spark plugs, which sh~uld be 0.035
to 0.040 inch.
Cooling System
o 1. When the temperature
is likely to be
32 F. or lower, there is danger of the water
freezing in the cooling system.
To prevent
freezing,
use one
-of
the recommended
anti-
freeze solutions shown in the table on the
following page.
2. Before filling with antifreeze,
drain
and clean the cooling system as follows:
a. Remove the radiator
cap.
Open
the radiator
and crankcase
drains.
Allow
the system to drain and then close the
drains.
b. Fill the cooling system with a
solution of 10 pounds of ordinary washing
soda mixed with 148 U.S. quarts of water
(the cooling system capacity).
c. Leave off the radiator
Lller cap
and operate the engine until the water is
hot, then drain and .flush with clean water.
3.
Refill and check the radiator,
water
pump, ail gaskets, and hose connections.
If
any leaks are found, make repairs.
5. ClOSe the drains and fill the cooling
system with antifreeze
and water (refer to
the antifreeze
chart and instructions
in the
following se ction).
4.
After the cooling system has been
cleaned and flushed, and leaks repaired,
drain thoroughly.
See that the drains are
s-:»:
....
_
not plugged and that the water drains out
completely.
Antifreeze Solutions
1. Use only one type of antifreeze.
Do
not use a mixture of solutions, as it will be
difficult to determine how much protection
the mixture gives.
2. Never use honey, salt, kerosene,
fuel
oil, gluco·se or sugar, calcium chloride, or
any alkaline solution as an antifreeze.
25
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