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GENERAL DESCRIPTiON
Sealants are similar in function
to
gaskets;
they are used
to
keep liquids (such
as
lubrica'nts
and water) in - and dust, dirt, moisture and
chemicals
("enemy"
of
the tractor) out. In this
respect,
too
much emphasis cannot be placed on
the importance
of
selecting sealants
of
the types
called for the MITSUBISHI Tractor, The follow-
ing chart will serve
as
a rough guide for selecting
sealants:
Sealant Selection Chart
Where
to
use
Sealant
base
Properties
Operating
temperature
(minimum requirements)
..
Weather resistance
Threaded parts
Epoxy-modified
Oil resistance
-30°C
~
200°C
•
(-22°F
~
392°F)
..
Heat resistance
Engine
"
Weather resistance
Main bearing caps
Silicone rubber
Oil resistance
-60°C
~
2S0°C
and side seals
..
(_76°
F
~
482°F)
•
Heat resistance
..
Weather resistance
Transmission case,
Heat-resistant synthetic
•
Oil resistance
-40°C
~
ISO°C
hydraulic case, etc,
rubber (nonhardening
Heat resistance
(_40°F
~
302°F)
type)
"
"
Tear resistance
Chassis
"
Moisture resistance
Brake covers,
Special synthetic rubber
•
Weather resistance
-40°C
~
ISO°C
engine-clu tch
(hardening type)
Oil resistance
(-40°F
~
302°F)
housing joint, etc,
..
"
Heat resistance
1-18
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