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Kubota D1803-CR-E4 - Checking Fan Belt Damage and Wear; Checking Fan Belt Tension; Checking Radiator Cap Air Leakage

Kubota D1803-CR-E4
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4.4 Checking fan belt tension
1. Push the
belt halfway between the fan drive pulley
and alternator pulley at a specified force to measure
the deflection (A).
NOTE
If
the
measurement is out of the service
specifications, loosen the alternator
mounting screws and adjust its position.
Deflection (A)
Service specifi-
cation
10.0 to 12.0 mm
0.394 to 0.472 in.
(under load of 98 N
(10 kg, 22.1 lbf))
(A) Fan belt halfway
4.5 Checking fan belt damage and
wear
1. Check the fan belt for damage.
(A) Good (B) Bad
NOTE
If the fan belt has a damage, replace it.
2.
Check if the fan belt is worn out and sunk in the
pulley groove.
(A) Good (B) Bad
NOTE
If it is "Bad" (B), replace it.
4.6 Checking radiator cap air
leakage
CAUTION
Remove the
radiator cap only after you stop the
engine for a minimum of 10 minutes to decrease
its temperature.
If not, hot water can gush out and cause injury.
Tools required
Radiator cap tester and an adapter
1. Set a radiator tester and an adapter on the radiator
cap.
2.
Apply the specified pressure.
Specified pressure
88 kPa
0.90 kgf/cm
2
12 psi
4. ENGINE
SERVICING
4. Checking and adjusting
4-100
D1803-CR-E4,D1803-CR-TE4,D1803-CR-TIE4,V2403-CR-E4,V2403-CR-TE4,V2403-CR-TE4BG,V2403-CR-TIE4
KiSC issued 12, 2018 A

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