PRODUCT SUPPORT PROGRAM FOR REWORKING THE MULTI COMBINED VALVE (334-7446) ON CERTAIN M313D, M315D, M316D, M318D, M318D MH, M322D AND M322D MH WHEELED EXCAVATORS Caterpillar


PRODUCT SUPPORT PROGRAM FOR REWORKING THE MULTI COMBINED VALVE (334-7446) ON CERTAIN M313D, M315D, M316D, M318D, M318D MH, M322D AND M322D MH WHEELED EXCAVATORS

Usage:

REBE6043-00

10Jun2010


U-202
D-177
O-181

 
Priority
  
  

PRODUCT SUPPORT PROGRAM FOR REWORKING THE MULTI COMBINED VALVE (334-7446) ON CERTAIN M313D, M315D, M316D, M318D, M318D MH, M322D AND M322D MH WHEELED EXCAVATORS

5064
PI31752
NOTE:

This Program must be administered as soon as possible. When reporting the repair, use "PI31752" as the Part Number and "7751" as the Group Number, "56" as the Warranty Claim Description Code and "T" as the SIMS Description code. Exception: If the repair is done after failure, use "PI31752" as the Part Number, "7751" as the Group Number, "96" as the Warranty Claim Description Code, and "Z" as the SIMS 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 Caterpillar product analyst.


COMPLETION DATE

TERMINATION DATE

31Dec2010 30Jun2011

PROBLEM

The 345-0785 Solenoid Relief Valve Group on the "A" side of the 334-7446 Combination Valve Group on certain M313D, M315D, M316D, M318D, M318D MH, M322D and M322D MH Wheeled Excavators has incorrect pressure and flow characteristics for work tools that operate with one-way flow.

AFFECTED PRODUCT

Model Identification Number
M313D  W3H00918-00922, 924-926, 928-931, 5000-5007, 5009-5013, 5017, 5019, 5027, 5029, 5031
M315D  W5M00784-00786, 788-792, 5000-5004, 5006-5007, 5009
M316D  W6A01152-01176, 1178-1184, 1186-1187, 5000, 5002-5009, 5011, 5013-5016, 5018-5023, 5026, 5029, 5031, 5037-5038, 5040
M318D  W8P01192-01194, 1196-1204, 1206-1207, 1209-1212, 5000, 5002-5005, 5007-5013, 5015-5018, 5020, 5022, 5025-5026, 5032
M318D MH  W8R00335-00336, 338-340, 342, 5000, 5002-5005
M322D  W2S00445-00455, 5000, 5002-5003
M322D MH  W2T00442-00446, 5004

PARTS NEEDED

Qty

Part Number Description
1 3E6788 SEAL-O RING
2 8T8737 PLUG-SEAL
1 9X4626 SEAL-0 RING
1 1552270 PLUG KIT-CONN
1 2914623 VALVE GP-SOL&RLF
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 45% of dealership population. This is an initial order recommendation only, and the ultimate responsibility for ordering the total number of parts needed to satisfy the program lies with the dealer.

ACTION REQUIRED

Refer to the attached Rework Procedure.

OWNER NOTIFICATION

U.S. and Canadian owners will receive the attached Owner Notification.

SERVICE CLAIM ALLOWANCES

Caterpillar
Dealer Suggested
Customer Suggested
Parts %
Labor Hrs%
Parts %
Labor Hrs%
Parts %
Labor Hrs%
100%
100%
0%
0%
0%
0%
 NOTE: This is a 5.0-hour job


PARTS DISPOSITION

Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.
 
 
MAKE EVERY EFFORT TO COMPLETE THIS PROGRAM AS SOON AS POSSIBLE.
 
 
 
COPY OF OWNER NOTIFICATION FOR U.S. AND CANADIAN OWNERS

XYZ Corporation
3240 Arrow Drive
Anywhere, YZ 99999

PRIORITY - PRODUCT SUPPORT PROGRAM FOR REWORKING THE MULTI COMBINED VALVE (334-7446)

MODELS INVOLVED - M313D, M315D, M316D, M318D, M318D MH, M322D AND M322D MH WHEELED EXCAVATORS

Dear Caterpillar Product Owner:


The 345-0785 Solenoid Relief Valve Group on the "A" side of the 334-7446 Combination Valve Group needs to be replaced on the products listed below. The existing solenoid relief valve can result in incorrect pressure and flow characteristics for work tools that operate with one-way flow. You will not be charged for the service performed.

Contact your local Caterpillar dealer immediately to schedule this service. The dealer will advise you of the time required to complete this service.

Please refer the dealer to their Service Letter dated 10Jun2010 when scheduling this service.

We regret the inconvenience this may cause you, but urge you to have this service performed as soon as possible to prevent unscheduled downtime.



Caterpillar Inc.

Identification #(s)



Attached to 10Jun2010 Service Letter


Rework Procedure


 
1. Place the machine on level ground and lower the implement / bucket to the ground.

2. Relieve the hydraulic system pressure. Refer to Testing and Adjusting Manual, RENR9465, "Hydraulic System Pressure - Release".

3. Connect a vacuum pump to the hydraulic tank to minimize loss of any hydraulic fluid.
 
4. Disconnect the 252-6671 Wiring Harness from the 345-0785 Solenoid Relief Valve Group and set to the side (it will be connected to the new electronic pressure relief valve in a later step). Refer to Images 1.2.1 and 1.2.2.

5. Plug the connector on the solenoid relief valve group with the two 8T-8737 Plug Seals and the 155-2270 Plug Assembly Connector.
Image1.2.1
Image1.2.2
 
6. Remove the two 8T-2396 Bolts and the 273-0847 Actuator. Set to the side. Take care during removal that the 3E-6788 and 9X-4626 Seal O-rings are not damaged. Refer to Images 1.3.1 and 1.3.2.
Image1.3.1
Image1.3.2
 
7. Mark the spool before removal (for proper orientation for re-assembly). Pull the spool from the bottom of the multi combined valve (MCV) and plug the port with a plastic cap.
Image1.4.1
 
8. Remove the 216-9510 Relief Valve Group and replace it with the 291-4623 Electronic Pressure Relief Valve (EPRV). Tighten the 291-4623 EPRV to a torque of 100 Nm + 10 Nm.
Image1.5.1
 
9. Connect the wiring harness that was removed in Step 4 to the newly installed 291-4623 EPRV.

10. Install the spool short side up in the MCV (long side at the bottom "A side" of the MCV). Refer to Image 1.6.1.
Image1.6.1
 
11. Install the 3E-6788 Seal, 9X-4626 Seal, and 273-0847 Actuator. Tighten the two 8T-2396 Bolts to a torque of 10.4 Nm + 1 Nm.

12. Remove the vacuum pump from the hydraulic tank and put the cap back on.

13. Start the machine and bring it to operating temperature. Refer to the machines Operation and Maintenance Manual.

14. Perform the One-Way Flow test in Testing and Adjusting Manual, RENR9465, "Hydraulic System - Setup - Control Valve (Combined Function)".

15. After testing, inspect the MCV for leaks.
 
 

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