Cub Cadet 8454 Service Manual page 84

CHAPTER 2 8454
F. COOLING SYSTEM
a . Checking Adjusting
(A) Fan belt
1. Measure the deflection, by depressing the belt half-
way between the fan drive pulley and the alternator
pulley at 98 N (10 kgf, 22 lbs) of force.
2. If the deflection is not between the factory specifica-
tions, loosen the bolts and nuts, and relocate the
alternator to adjust.
3. If the belt is damaged or worn (see figure), replace
the belt.
Belt Factory
tension spec
(direction)
(B) Radiator water tightness
1. Fill the radiator with water to the specified amount
and warm up the engine.
2. Set a radiator tester and raise the water pressure to
the specified pressure.
3. Check the radiator for water leaks.
4. For water leaks from a pin hole, repair it with radia-
tor cement, and for larger leaks, replace the radiator.
Radiator Factory
water spec
tightness
(C) Radiator cap tightness
1. Set a radiator tester on the radiator cap.
2. Apply 88 kPa (0.9 kgf/cm
measure the pressure for 10 seconds.
3. If the pressure falls below 59 kPa (0.6 kgf/cm
psi),replace the radiator cap.
Radiator Factory
cap spec
tightness
2-62
K&T Saw Shop 606-678-9623 or 606-561-4983
www.mymowerparts.com
7 ~ 9 mm
0.28 ~ 0.35 in.
at 98 N (10 kgf, 22 lbs)
of force
No leaks at 137 kPa
2
(1.4 kgf/cm , 20 psi)
2
, 13 psi) of pressure and
2 , 9
more than 10 seconds
for pressure fall
from 88 ~ 59 kPa
(0.9 ~ 0.6 kgf/cm 2 , 13 ~ 9 psi)
569W2C0A
569W2C1A
569W2C2A
D569-W02 May-2003