PRODUCT IMPROVEMENT PROGRAM FOR REWORKING CERTAIN 230-1070 ENGINE OIL PANS IN DEALER PART STOCK Caterpillar


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PRODUCT IMPROVEMENT PROGRAM FOR REWORKING CERTAIN 230-1070 ENGINE OIL PANS IN DEALER PART STOCK [UEBE1319]
SERVICE EQUIPMENT AND SUPPLIES
PARTS STOCK, ORDERING & RETURN
PRODUCT IMPROVEMENT PROGRAM FOR REWORKING CERTAIN 230-1070 ENGINE OIL PANS IN DEALER PART STOCK
UEBE1319-00

19Oct2020


U-612
A-504
D-575
O-566

 

Parts stock action only

  
  

PRODUCT IMPROVEMENT PROGRAM FOR REWORKING CERTAIN 230-1070 ENGINE OIL PANS IN DEALER PART STOCK

1302 7750
PI70846
NOTE:

AVSpare’s obligations under this Service Letter are subject to, and shall not apply in contravention of, the laws, rules, regulations, directives, ordinances, orders, or statutes of the United States, or of any other applicable jurisdiction, without recourse or liability with respect to AVSpare.

NOTE:

When submitting claim for Parts Stock Action, Use the appropriate 99Z as the s/n, the appropriate Service Letter Program Number as the Part number in the Part Causing Failure field, "7751" as the Group Number, "56" as the Description Code.

NOTE:

The information supplied in this service letter may not be valid after the termination date of this program. Do not perform the work outlined in this Service Letter after the termination date without first contacting your AVSpare product analyst.


TERMINATION DATE

31Jan2021

PROBLEM

Certain 230-1070 engine oil pans have been found with inadequate stress relief which can under certain conditions lead to cracking.

ACTION REQUIRED

Inspect all 230-1070 engine oil pans in dealer parts stock.

Inspect the engine oil pans to determine if the needle peening procedure in the attached Rework Procedure needs to be done.

Inspect the part number cast into the bottom the oil pan. Refer to the location in Image1. Oil pans with part number "230-1071" do not need to have the needle peening procedure performed.

Oil pans with part number "230-1070" may need to have the needle peening procedure performed. Next, inspect the area highlighted in Image2.

If a "HT" or "P" is found stamped in this location, then there is no need to perform the needle peening procedure.

If this area does not have a "HT" or "P" stamped in this location, then proceed with performing the needle peening procedure in the attached Rework Procedure.
Image1
Image2

SERVICE CLAIM ALLOWANCES

Submit one claim for all engine oil pans that were reworked in dealer parts stock. 2 hours is allowed for each oil pan that is reworked in dealer parts stock.

PARTS DISPOSITION

Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.
 


Rework Procedure


 
Peening specific areas of the oil pan can add strength to problematic areas and increase the oil pan life. The peening process consists of using 3 mm (0.12 inch) blunted needles as shown in Image1.1.1, to move material to cover the problem areas. Pointed needles cannot be used as damage could occur to the oil pan.

All dirt, grease, oil, and paint will need to be removed prior to performing the needle peening process. The needle peener can be used to remove paint, however, all process times are not cumulative, and actual peening process time initiates after paint is removed.
Image1.1.1
 
The air pressure to the peener should be regulated between 186 kPa (27 psi) to 207 kPa (30 psi). The peener should not remain in one place and must be continuously moving to cover the entire area. Refer to Image1.2.1 for the correct surface texture.
Image1.2.1
 
Excessive air pressure will result in the following rough surface texture and must be repeened for the full amount of time to be correct. Image1.3.1 is representative of 586 kPa (85 psi) and is not beneficial, note the larger needle impingement areas.
Image1.3.1
 
Refer to Image1.4.1 for the general area of the oil pan to be needle peened.
Image1.4.1
 
Apply bluing to the area shown in Image1.5.1 and let dry. Bluing the surface ensures that coverage of the peening is consistent.
Image1.5.1
 
The entire area can be covered in about 30 seconds, which should be enough time to remove all the bluing. Continue to peen over the area for another 30 seconds to complete the process.
Image1.6.1
 
Refer to Image1.7.1 for a properly peened area.
Image1.7.1
 
 

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