Kubota ZD18 - Checking and Adjusting; Cooling System

1-S47
ZD25F, WSM
ENGINE
[4] COOLING SYSTEM
(1) Checking and Adjusting
(A) Fan Belt
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.
W10384280
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.
W10385490
Deflection (A) Factory spec.
Approx. 10 mm
0.4 in.
(A) Deflection
(A) Good (B) Bad
KiSC issued 04, 2009 A