Fan Belt; Radiator - Kubota L4400 Workshop Manual

L4400 , WSM

(5) Fan Belt

(6) Radiator

Tractor Manuals Scotland
Fan Belt Tension
1. Measure the deflection (A), depressing the belt halfway between
the fan drive pulley and alternator pulley at specified force (98 N,
10 kgf, 22 lbs).
2. If the measurement is not within the factory specifications, loosen
the alternator mounting screws and relocate the alternator to
adjust.
Deflection (A)
(A) Deflection
Fan Belt Damage and Wear
1. Check the fan belt for damage.
2. If the fan belt is damaged, replace it.
3. Check if the fan belt is worn and sunk in the pulley groove.
4. If the fan belt is nearly worn out and deeply sunk in the pulley
groove, replace it.
(A) Good
Thermostat Valve Opening Temperature
1. Suspend the thermostat in the water by a string with its end
inserted between the valve and seat.
2. Heating the water gradually, read the temperature when the
valve opens and leaves the string.
3. Continue heating and read the temperature when the valve
opens approx. 6 mm (0.236 in.).
4. If the measurement is not within the factory specifications,
replace the thermostat.
Thermostat's valve
opening temperature
Temperature at which
thermostat completely
opens
Tractor Manuals Scotland - Please Do Not Copy
1-S16
7.0 to 9.0 mm
Factory spec.
0.28 to 0.35 in.
(B) Bad
69.5 to 72.5 °C
Factory spec.
157.1 to 162.5 °F
85 °C
Factory spec.
185 °F
ENGINE
W10356670
W1016443
W1035849
KiSC issued 07, 2007 A