Yanmar SA424 - Replacing the Alternator;Fan Belt; Lubricating Grease Fittings

14. PERIODIC SERVICE
14-18
SA221/324/424 Operation Manual
3. Replace the Alternator/Fan Belt
1. Park the tractor safely and securely.
• For details, see "7. Safe Practices for Parking the
Tractor" on page 1-7.
2. Shut off the engine.
3. Chock all the tires safely and securely.
4. Allow the engine to cool down for several
minutes.
5. Raise the hood.
6. Loosen the adjusting bolt.
7. Loosen the mounting bolt.
8. Loosen the fixing bolt.
(A) Adjusting bolt
(B) Mounting bolt
(C) Fixing bolt
9. Apply an inward pressure to the alternator
housing.
10.Remove the alternator/fan belt from the alternator
sheave, fan sheave and crankshaft sheave.
11.Route the defective alternator/fan belt over the
fan and remove the alternator/fan belt.
12.Install a new alternator/fan belt over the fan and
onto the sheaves.
13.Exert an outward pressure to the alternator
housing to attain the correct tension.
14.Tighten the adjusting bolt and the mounting bolt,
in that order.
15.Check the alternator/fan belt tension.
16.Tighten the fixing bolt.
17.Lower the hood.
18.Confirm that the hood latch locked securely.
(A) Fan sheave
(B) Adjusting bolt
(C) Alternator sheave
(D) Crankshaft sheave
■ Grease Fittings
(General all purpose grease NLGI grade No. 2)
1. Lubricate the Grease Fittings on the
Tie Rod
Extremely Wet or Muddy Conditions
Lubricate the grease fittings once every 10 operating
hours or once a day.
All Other Conditions
Lubricate the grease fittings once every 50 operating
hours.
NOTE
●Replace an excessively worn out, damaged or
elongated alternator/fan belt with a new
alternator/fan belt.
(C)
(A)
(B)
IMPORTANT
● Use the recommended greases by Yanmar.
• the preceding procedure prevents premature
wear or failure of the parts and components
● The recommended greases by Yanmar perform
efficiently in an average ambient temperature
range from -20 to +275 °F (-29 to +135 °C).
● When intending to operate the tractor outside the
preceding temperature range:
• contact YOUR LOCAL YANMAR TRACTOR
DEALER for the applicable special purpose
greases
(A)
(B)
(C)
(D)
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