temperature.
T72O613A
AIR CON. SWITCH
To operate the air conditioner,the
blower must be on.The blower
speed temperature control and all
vents must be adjusted to obtain the
best cooling for the ambient temper-
ature and dust conditions.
Under normal operating conditions,
and the windows and doors closed,
temperatures in the cab of 10 ºF
to 25 ºF (6ºC to 15 ºC) less than
the ambient temperature will occur.
When operating the air condition-
er system,the moisture level is de-
creased.
►
NOTE
During cold weather, with am-
bient temperature above 32 ºF
(0 ºC) operate the air condi-
tioner at least once per month,
for a period of 10 to 15 min-
utes. This will lubricate the
seals to prevent them becom-
ing brittle and help prevent
the loss of refrigerant from the
system.
The system is equipped with
an environmentally safe re-
frigerant, R134a. Never re-
charge the air conditioning
system with refrigerant other
than R134a as this will result
in loss of cooling and perma-
nent damage to all air condi-
tioning components.
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