Usage:
CONFIDENTIAL TIBU3687-02
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TECHNICAL INFORMATION BULLETIN |
October 9, 2002 |
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WHEEL SKIDDERS |
525B (3KZ1-Up) 535B (AAE1-Up) |
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Component Code: 1353 |
SUBJECT: A NEW RADIATOR AND SHROUD ARE USED
PROBLEM: The 156-5881 Radiator Leaks prematurely at soldered joints.
SOLUTION: A new radiator is used on the machines that are listed. The new radiator uses bolted joints instead of the former soldered joints. The new shroud uses hinges that improve access for cleaning the radiator.
The new radiator improves service life. The new 221-2659 Radiator replaces the former 156-5881 Radiator. The new 221-2659 Radiator uses a new radiator shroud that is not adaptable to the former 156-5881 Radiator. The new 221-2659 Radiator was effective with 525B (3KZ 796, 826, 835-Up) Wheel Skidders and 535B (AAE 569,571-Up Wheel Skidders. The new 221-2659 Radiator is adaptable to first production of the machines that are listed.
- Seal. (2) Spacer. (3) Mount. (4) Existing Washer. (5) Bolt.
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Required Parts |
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Part Number |
Quantity |
Description |
Comment |
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1 |
Radiator Group |
Radiator and Shroud |
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4 |
Bolt |
M12 Bolt Used for Mounting Radiator |
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4 |
Spacer |
Spacer for Mounting the Radiator |
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| (1) |
4 |
Spacer |
Spacer Used Between the Condenser and the Rubber Mount |
| (2) |
12 |
Bolt (M8 x 1.25 x 25) |
Bolt Used for Mounting the Fan Guard and Condenser Bracket to the Shroud |
| (3) |
4 |
Bolt (M10 x 1.5 x 45) |
Bolt to Mount the Condenser to the Bracket |
| (4) |
2 |
Plate |
New Bracket for Mounting the Condenser |
- Not needed once the 224-5631 plates are available from Morton. Also, not needed on machines without Air Conditioning.
- Some earlier shrouds were built with M8 hardware. The later built shrouds will use the original M10 hardware and will not require the new M8 hardware.
- Not needed with the 224-5631 plates. Also, not needed on machines without Air Conditioning.
- Availability not known. Estimated November 1, 2002. This bracket preferred over the 1W-5040 spacers. Also, not needed on machines without Air Conditioning.
The existing seal (1) can be trimmed to a thickness of approximately 10 mm (.4 inch) as an alternative to ordering the new 122-2228 Seal. The new seal should be available in the Caterpillar parts system October 19, 2002.
The new radiator shroud is 26mm (1 in) wider than the former shroud. Therefore, the 1W-5040 Spacers should be installed between the condenser core and the rubber mount until the 224-5631 plates are available. The 8T-4182 bolts are used to mount the condenser to the bracket and accommodate the 1W-5040 spacers.
COPYRIGHT 2002 CATERPILLAR
ALL RIGHTS RESERVED