PRODUCT SUPPORT PROGRAM FOR REPLACING THE PRIORITY POPPET VALVE ON CERTAIN 307E MINI HYDRAULIC EXCAVATORS Caterpillar

PRODUCT SUPPORT PROGRAM FOR REPLACING THE PRIORITY POPPET VALVE ON CERTAIN 307E MINI HYDRAULIC EXCAVATORS

Usage:

TEBE0816-00

Show/hide table

05Mar2014

D-114

Show/hide table

*Before/After*	PRODUCT SUPPORT PROGRAM FOR REPLACING THE PRIORITY POPPET VALVE ON CERTAIN 307E MINI HYDRAULIC EXCAVATORS
506P 5051		PS44206

Show/hide table

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 "PS44206" 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.

Show/hide table

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.

Show/hide table

TERMINATION DATE

31Mar2015

PROBLEM

Show/hide table

The existing priority poppet valve can be unfavorably wornout on certain 307E Mini Hydraulic Excavators. If the existing priority poppet valve fails, it can cause slower implement movement on the machine.

AFFECTED PRODUCT

Show/hide table

Model	Identification Number
307E	H1Y00100-00157, 159-540, 542-560, 562-575, 577-636, 639-640, 643-645, 647-654, 656-675, 678-694, 713-717, 720-723, 726-729, 732-734

PARTS NEEDED

Show/hide table

Qty	Part Number	Description
2	2M9780	SEAL-O-RING (IF REQUIRED)
2	4491649	VALVE-CHECK
1	BULK_OIL	HYDRO-ADVANCED OIL 10 (1 LITRE)
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 10% 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

Show/hide table

Replace two priority poppets with two new 449-1649 Check Valves.

Note: It is required that the two replaced priority poppet be returned to Wujiang facility in order for the Before/After Service Letter to be claimed.

Clearly label the two returned priority poppets with the machine serial number, SMU, and the replacement date.

The land transportation claims to send back the two priority poppets will be reimbursed. All claims must be submitted with the proper transportation invoices.

Refer below to the required population for the two replaced priority poppets that must be returned to Wujiang facility and the shipping details:

A) H1Y00100
B) H1Y00102- H1Y00104
C) H1Y00106- H1Y00115
D) H1Y00117- H1Y00123
E) H1Y00125- H1Y00129
F) H1Y00131- H1Y00155
G) H1Y00157

Attention to: Dong Changming (Tony)
Caterpillar (Wujiang) Ltd
Quality Department
Address: No.668, Xinzi Road, Wujiang Economic & Technological Development Zone, Jiangsu Province, China, Post Code 215200

Show/hide table

SERVICE CLAIM ALLOWANCES

Show/hide table

Product smu/age whichever comes first	Caterpillar		Dealer Suggested		Customer Suggested
Product smu/age whichever comes first	Parts %	Labor Hrs%	Parts %	Labor Hrs%	Parts %	Labor Hrs%
0-3000 hrs, 0-12 mo	100.0%	100.0%	0.0%	0.0%	0.0%	0.0%

Show/hide table

NOTE: This is a 1.0-hour job

Show/hide table

PARTS DISPOSITION

Show/hide table

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

Rework Procedure

Show/hide table

1. Park machine on level ground with the implements lowered.

Refer RENR9744, Disassembly and Assembly, for System Pressure Release.

2. Turn off the engine and battery isolator switch.

Refer to Image1.1.1.

Image1.1.1

3. Unbolt using a 16mm box socket or wrench and remove hydraulic tank top cover and the cap.

4. Attach a 311-1362 Vacuum Cap onto the hydraulic tank opening.

5. Attach an air supply hose onto the assembly.

6. Apply 276 to 414 kPa (40 to 60 psi).

This will pull a vacuum on the hydraulic system.

Refer to Image1.2.1.

Image1.2.1

7. Loosen top spacer block A and bottom spacer block B priority valve plug using a
1 inch box socket, as shown.

Note: Loosen and remove any hose that is obstructing the plug removal.

Refer to Image1.3.1.

Image1.3.1

8. Remove the spring and poppet C from the spacer block using a magnetic rod, if required.

9. Replace with new poppet C and reassemble the spring and the plug.

10. Ensure the plug O-ring seal is in good condition. Replace if necessary.

11. Retighten the plug to a specified torque of 81 +/- 8 N.m.

12. Repeat the above for bottom spacer block B.

Refer to Image1.4.1.