PRODUCT SUPPORT PROGRAM FOR MODIFICATIONS IN THE SWING PILOT CIRCUIT IN ORDER TO PREVENT SWING VIBRATION ON CERTAIN 345D EXCAVATORS Caterpillar


PRODUCT SUPPORT PROGRAM FOR MODIFICATIONS IN THE SWING PILOT CIRCUIT IN ORDER TO PREVENT SWING VIBRATION ON CERTAIN 345D EXCAVATORS

Usage:

REBE5849-00

17Mar2010


U-85
A-68
D-77
O-80

 
Before/After
  
  

PRODUCT SUPPORT PROGRAM FOR MODIFICATIONS IN THE SWING PILOT CIRCUIT IN ORDER TO PREVENT SWING VIBRATION ON CERTAIN 345D EXCAVATORS

5057 5059
PS43053
NOTE:

This Program must be administered either before or after failure. In either case the decision whether to apply the Program is made by the dealer. When reporting the repair, use "PS43053" as the Part Number and "7755" as the Group Number. If administered before failure, use "56" as the Warranty Claim Description Code and "T" as the SIMS Description code. If administered after failure, use "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.


TERMINATION DATE

31Mar2012

PROBLEM

The operator may experience joystick vibration during the operation of the swing function on certain 345D Excavators.

AFFECTED PRODUCT

Model Identification Number
345D L EEH00001, 221-624

MLK00161-00178

RAJ00231-00335

YEE00241-00493

PARTS NEEDED

Qty

Part Number Description
3 3J1907 SEAL-O-RING
1 6V8397 SEAL-O-RING-ORFS
1 1232430 VALVE GP-SHTL -B
1 2489469 HOSE AS
1 2597733 CONNECTOR
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 7% 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 in order to install an orificed connector, new shuttle valve and hose assembly.

SERVICE CLAIM ALLOWANCES

Product smu/age whichever comes first
Caterpillar
Dealer Suggested
Customer Suggested
Parts %
Labor Hrs%
Parts %
Labor Hrs%
Parts %
Labor Hrs%
0-3000 hrs,
0-24 mo 
100.0%
100.0%
0.0%
0.0%
0.0%
0.0%
3001-6000 hrs,
25-48 mo 
33.0%
50.0%
0.0%
0.0%
50.0%
50.0%
 NOTE: This is a 2.0-hour job



PARTS DISPOSITION

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


Rework Procedure


 
1. Install a 3J-1907 and 6V-8397 Seal into the 259-7733 Connector.
Image1.1.1
 
2. Install the orificed connector into the shuttle valve assembly as shown in Image 1.2.1.
Image1.2.1
 
3. Place the machine in the service position and release the hydraulic oil pressure in the system. Refer to the machines Disassembly and Assembly manual, "System Pressure ? Release".

4. Attach vacuum cap onto the hydraulic tank. Attach an air supply hose onto the assembly. Apply 276 to 414 kPa (40 to 60 psi). This procedure will pull a vacuum on the hydraulic system

5. Remove the guard that is underneath the main control valve.
Image1.3.1
 
6. Remove the shuttle valve from the machine and replace with the new shuttle valve group.
Image1.4.1
 
7. Install the new 248-9469 Hose Assembly. The 248-9469 Hose Assembly runs from the shuttle valve outlet to the "B2" port of the pressure reducing valve.
Image1.5.1
Image1.5.2
 
8. Remove the brown hose identification band from the old hose assembly, and attach the band onto the 248-9469.

9. Clean up the affected area, and install the bottom guard.

10. Remove the vacuum cap from the hydraulic tank and reinstall the hydraulic oil tank cap.

11. Bleed out the air from the swing pilot circuit.

12. Test the machine for leaks and correct operation.
 
 

Caterpillar Information System:

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