Usage:
March 7, 1999
(Revised February 2003)
U-62
A-50
AU-36
S-34
O-55
| After failure only |
PRODUCT SUPPORT PROGRAM FOR REPEAT TRACK JOINT FAILURES (LEAKS) ON D11N AND D11R TRACTORS |
|
| 4169, 4175 |
PS5554
|
|
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.
NOTE: This Revised Service Letter replaces the March 7, 1999 (Revised March 2002) Service Letter. A change was made to the Termination Date, Limits Of Participation, Repair Option Selection Criteria, and Action Required.
TERMINATION DATE
December 31, 2005PROBLEM
The tracks on certain D11N and D11R Tractors may develop dry joints before an acceptable service life has been achieved. Caterpillar will participate to assure acceptable track joint performance as long as certain guidelines and criteria are met. This program is intended to address dealer and user concerns for failures on machines operating in normal applications, equipped with proper track shoes, and not being abused.AFFECTED PRODUCT
| Model |
|
| D11N | 74Z1-Up |
| D11N | 4HK1-Up |
| D11R | 8ZR1-Up |
| D11R | 9TR1-Up |
| D11R | 9XR1-Up |
| D11R | 7PZ1-Up |
| D11R | AAF1-Up |
PARTICIPATION EXCLUSIONS
- No participation will be considered by Caterpillar unless, at the first repair, a permanent serial number uniquely identifying the track is stamped or welded on the second full right-hand link from the pin end of the master link. Dealer may use any numbering system up to eight characters to identify the track. For example, KEMCL100 or KC1. See the Illustration. If possible, dealer should use the factory serial number stamped on the second full righthand link from the pin end of the master link. Caterpillar prefers this number since it identifies the production date of the track. The serial number must be included in the comments section of each claim.
- No participation will be considered by Caterpillar unless a copy of the attached form is completely filled out including both the track serial number and track hours. The form must be retained by the dealer for future use by the dealer or Caterpillar. These forms will be requested by Caterpillar from time to time.
LIMITS OF PARTICIPATION
- 6,000 hours of operation or 3 years, whichever comes first.
- 100% link and/or bushing wear.
- 100% labor and parts participation through the first complete track disassembly (excluding bushing turn*).
- 50% labor and parts participation after the first complete track disassembly (including bushing turn*).
- Link assembly participation if link assembly has been previously completely disassembled two or more times.
* A bushing turn will be considered a complete track disassembly. At bushing turn, no participation for labor, track seals, rubber stoppers, retaining rings (PPR), or plastic plugs will be considered. They are normal customer expenses at bushing turn. All track seals require replacement when the track is completely disassembled.
REPAIR OPTION SELECTION CRITERIA
Dealers must select 1 of 3 repair options according to the following criteria:Option 2 - Track has developed 3 or more dry joints for the first time on a new link assembly, or one dry joint has been detected after the track has previously been repaired under Option 1 with a claim submitted.
Option 3 - Track
has developed one or more dry joints after 2 complete disassemblies have
occurred.
Option 1
PARTS NEEDED
|
|
|
|
| * | 7G-4332 | Stopper-Rubber |
| * | 9W-9626 | Ring Assembly
or 9W9624 Ring Group-Facing & 9W9625 Ring-Thrust |
| * | 6Y-0473 | Plug |
| * | 6Y-1082 | Retaining Ring Group |
| * | 126-5343 | Pin-Track |
| * | 161-7546 | Seal Assembly
or 161-7548 Seal Set |
| * | 202-0908 | Bushing-Track |
| * Use If/As Required. | ||
SERVICE CLAIM ALLOWANCES
List on the claim only those new parts needed to make repair authorized in this service letter. The track serial number as previously described in the Participation Exclusions Section of this service letter must be included in the comments section on each claim submitted. Dealer must retain a completed copy of the attached inspection form for each claim. No participation in this Program will be possible without this inspection data which must be completely filled out. Indicate link and bushing wear in on-line claim story. Forms will be requested by Caterpillar from time to time for analysis and auditing purposes. Also, dealer can only claim on one option.|
Option Number |
|
|
|
|||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
See Service Claim Allowances for Option 3 Below. | |||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
Service Claim Allowances for Option 3
For replacing an entire link assembly, Caterpillar's participation will be determined by the greater of percent wear life used or percent of link hours where 6,000 hours equals 100%. Our computation for this is:
Caterpillar's Participation = D/N Price - Customer Participation
Where:
Customer Participation = Customer List Price X The Greater of Percent Wear or Percent Hours to 6,000 Hours
DRY JOINT DETECTION
The only positive means of determining whether a dry track joint has developed is when pitch extension occurs. Hot, squeaking, and/or kinking joints are only indicators of potential dry joints. The decision to remove the track from the machine should be based on pitch extension only. Allow the pitch to extend 6 mm (.25") before track removal.PARTS DISPOSITION
Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.Attach. (1-Track Inspection Form)
A) DEALER CODE _______________ H) EMPLOYEE
ID ________________
B) DATE (MMDDYY) _____________ I) PART NO.
RESPONSIBLE _______
C) CUSTOMER __________________ J) QUANTITY
___________________
D) MODEL _____________________ K) DESCRIPTION
CODE ___________
E) SERIAL NO. ________________ K) GROUP NO.
__________________
F) MACH HOURS ________________ L) INOPERABLE
CODE ____________
G) WORK ORDER NO. ____________
TRACK NO. ____________ TRACK HOURS ____________
PPR ____________ LINK PART NO. ____________
SHOP OR FIELD REPAIR? ____________
BRAND OTHER THAN CAT ____________
TURNED ? YES / NO
MEASUREMENTS
DIMENSION % WORN
LINK _____________|______ SHOE WIDTH _____________________
BUSHING __________|______
SCALE ____________|______ REGROUSERED? YES
/ NO
SHOE _____________|______
NUMBER OF:
(BEFORE DISASSEMBLY) (AFTER DISASSEMBLY)
DRY JOINTS _______________ BORE DAMAGED LINKS
___________
LOW JOINTS _______________ PINS GALLED __________________
CRACKED LINKS ____________ BROKEN PINS __________________
CRACKED SHOES ____________ CRACKED BUSHINGS
_____________
BUSHINGS WALKING _________ GROVED BUSHINGS
______________
DAMAGED SPLIT LINKS? YES / NO
PART NUMBER OF SEAL REMOVED _____________
REPAIR OPTIONS A. FLOOR REPAIR C. REGROUSER
B. TURN PINS & BUSHINGS D. SCRAP-NO WARRANTY
REASON TRACK WAS REMOVED ______________________________________
COMMENTS: _____________________________________________________
_______________________________________________________________
_______________________________________________________________
_______________________________________________________________
_______________________________________________________________
_______________________________________________________________