Cub Cadet 6X4 Shop Handbook page 249

5. Cleaning the radiator (external)
5a. The radiator should be visually checked for
air blockage at the start of each operating
day, while checking the coolant level.
5b. If over-heating or general operating condi-
tion merits extra attention, check the con-
dition of the radiator before checking
other components.
5c. The radiator can be easily seen from the
top and bottom for complete external
inspection.
CAUTION: If there is a possibility that the vehi-
cle has been operated in or exposed to hazard-
ous chemicals (such as pesticides), take
appropriate precautions to prevent inhaling or
ingesting those chemicals.
5d. The radiator should self-clean through a
combination of vibration and gravity, but
may occasionally become blocked under
extreme conditions.
5e. Light dust may be cleared from the radia-
tor using compressed air regulated to 15
PSI. (1.03 Bar).
CAUTION: Wear eye protection and a dust
mask (at minimum) when using compressed air
to clean the radiator.
CAUTION: Do not get the blow-gun close
enough to the radiator core to dislodge or dam-
age the fins. If the fins show any signs of dam-
age or distortion from the cleaning process stop
cleaning immediately.
Chapter 8 - Caterpillar Engine and Related Systems
5f. Heavier mud can be cleared using a water
hose. Use line head pressure only. Do
not pressure-wash the radiator.
See Figure 8.67.
Mud accumulation from
use in messy field conditions
• While the cooling fan motor is meant to work in
an outdoor environment, it should be removed
before washing the radiator.
• If operating conditions are extremely dusty and
the radiator has been washed, be sure it is thor-
oughly dry before returning it to the field. In
most cases this will happen as the engine
warms-up.
• Do not thermally shock the radiator by spraying
water on it when it is hot.
CAUTION: Wear eye protection (at minimum)
when using water to clean the radiator.
CAUTION: Do not get the hose nozzle close
enough to the radiator core to dislodge or dam-
age the fins. If the fins show any signs of dam-
age from the cleaning process stop cleaning
immediately.
245
Figure 8.67