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Solution Number: 69262
Solution Summary: SIB 05-11-35-05 Engine Fan to Coolant Radiator Interference on 2305 Advantage Series Compact Utility Tractors
Publication Date: Sep 21 2005
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**Paper copies of solutions may not be the most current solutions**
Complaint or Symptom:
Engine Fan to Coolant Radiator Interference
Problem or Situation:
Engine Fan to Coolant Radiator Interference
Solution:
Engine Fan to Coolant Radiator Interference
Clearance Inspections and Potential Adjustments
2305 Advantage Series Compact Utility Tractors with an Invoice Date prior to 21 September 2005
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There is the possibility to have engine fan to coolant radiator interference which will result in radiator damage. Follow the checks and procedures below to insure proper clearance between the engine fan and radiator.
1. Engine Fan and Radiator Clearance
The engine fan to radiator shroud clearance should be 10-15 mm, it is imperative that the proper clearance is maintained. Rotate the fan blade to the twelve o’ clock position. Measure the distance between the fan blade and the inside surface of the shroud closest to the fan blade (See PDF Link at bottom for photos). If there is less than 10 mm clearance, then the side support braces should be loosened and the radiator adjusted to get this clearance. The retaining hardware should then be tightened, starting with the upper right hand, then lower left hand, then upper left hand and then lower right hand (See PDF Link at bottom for photos).
2. Battery Position
Verify that the battery is seated fully rearward against the two stop tabs to insure that the front latch rod has free motion. If it is not, adjust the battery accordingly.
3. Hood Latch Position
Insure that the wire latch hoop on the hood is striking the retainer latch in the correct position. Verify that the lower panel assembly is installed correctly and that the locating pins are correctly in place. If lower cowl is properly installed, lower the hood toward the latch and visually note the position of the upper wire latch hoop relative to the lower retainer latch. The wire latch hoop should contact the rear of the lower retainer latch surface at least 3 - 5 mm down the surface of the latch. This will insure that the latch will consistently capture the hood’s wire hoop (See PDF Link at bottom for graphics).
With improper hood hoop latch strike, the radiator can be forced into the fan during hood closure. This occurs when the hood hoop contacts the latch on the front side (See PDF Link at bottom for photo). If the hood is open and the unit is running, closing the hood with the latch in the position shown will result in fan blade to radiator contact. The results will be a punctured radiator.
If the hood’s wire hoop contacts the latch surface at the top of the latch surface, or comes to the front of the lower retainer latch, then the wire hoop should be adjusted rearward until it comes into the proper alignment. This can be done by inserting a lever through the wire hoop and, using moderate pressure, bend the hoop rearward until the proper positioning is achieved (See PDF Link at bottom for photo).
After the hoop has been adjusted, check to insure that the hoop is striking the latch at the proper position. If adjusted correctly, shut the hood with a firm closing motion on the hood front nose area (See PDF Link at bottom for photo). Slamming the hood is not necessary.
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