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February 2014 |
D10 Single Tooth Master Link Improved Design
Summary
The master links in the D10 T/R/N track have
changed from a five tooth serrated design to a Single Tooth design.
Benefits
The new design uses one large single tooth along with a wider link cross-section to improve resistance to link cracking. The single tooth design uses standard (1 1/8 ? 7) coarse threads to reduce occurrences of thread stripping.
These features help to reduce or in some circumstances eliminate the need to replace master links at the bushing turn service interval. As a result, customer expenses will be reduced. The new Single Tooth Master Link also increases reliability to the overall system.
Illustration 3 ? ?Pin End? Single Tooth Master Link;
Illustration 4 ? Coarse vs Fine
Thread
Coarse Thread Shipping Plugs
The 369-5963 Track Master Link ? Pin End RH and 369-5964 Track Master Link ? Pin End LH each consist of a "pin end" or "threaded" half link and two coarse thread shipping plugs installed. The plug is intended to protect the threads and should stay in place until the track is assembled on the tractor.
1 1/8" Coarse Thread Bolts vs Former Fine Thread 1 1/8" bolts
The plug (see illustration 3) is also intended to be a visual indicator to use the new 1 1/8 ? 7 coarse thread bolts instead of the former fine thread 1-1/8 - 12 bolts (see illustration 4). The coarse thread bolts must be used with the Single Tooth Master Links. Failure to do so will cause thread stripping, link damage and possibly track separation.
Track Shoes Used With New Single Tooth Master Links
Illustration 5 ? Track
shoes used with new Single Tooth Master Links (link joints separated for
clarity)
(A) ?Current track shoe on
current track full link - no changes
(B) ? Master track shoe - different bolt hole diameter and pattern than former
master shoe
(C) ?Joint 2 shoe (full link adjacent to bushing end master link) - wider mud
notch and narrow center tab
(D) ?New Single Tooth Master Links with wider bushing end master link
Illustration 6
Mud notch and center tab dimensions
Regular Track Shoes Can Be Modified
The track shoes used with the new Single Tooth Master Links have also changed. The new Single Tooth Master Link shoe has a different bolt hole diameter and pattern than the former master shoe. Also, the shoe next to the bushing end master links has wider mud notches to prevent interference with the wider Single Tooth Master Links. This shoe is referred to as the "Joint 2 shoe". See Illustration 5. The joint 2 shoe can be ordered through the parts system, or a regular track shoe can be modified in the field. See illustration 6 and Table 1 for dimensions
Mud Notch and Center Tab Dimensions (Table 1)
|
Shoe Type |
Qty |
Dimension (E) |
Dimension (F)
|
|
Standard
Full Link (A) |
42 |
96mm (3.8 inch) |
100 mm (3.9 inch) |
|
Master (B) |
1 |
96mm (3.8 inch) |
100 mm (3.9 inch) |
|
Joint 2 (C) |
1 |
142 mm (5.6 inch) |
62 mm (2.4 inch) |
Illustration 7 ?
New Single Tooth Master Bolt installation location
(G) ? 372-3874 Bolt (1 1/8 ? 7) 164 mm (6.5 inch) long
(H) ? 372-3875 Bolt (1 1/8 ? 7) 134 mm (5.3 inch) long
Torque Turn Values Have Changed
"
To ensure proper master link life and bolted joint integrity, the specified torque plus turn procedure must be properly followed. Note that 5 Tooth and Single Tooth torque turn angle values are different as the bolts have different threads."The new coarse thread master bolts should be installed as shown in Illustration 8. Clean threads of dirt and debris using 1U-9707 Tap (1 1/8 ? 7). Apply anti-seize compound to bolt threads, body, washer face, and bolt contact areas on the shoe during assembly and thread bolts in by hand. Although the new bolts are coarse thread and require a different torque, they use the same 1U-8586 Socket (1 11/16 inch) as the fine thread D10 bolts. Pre-torque all bolts to 700 ? 70 N?m (516 ? 52 lb ft) in the pattern shown in Illustration 8. Then turn each bolt an additional 90? ? 5? using the same pattern.
Note:
This is a change from the five tooth serrated master links and bolts that used a torque of 870 ? 90 N?m (642 ? 66 lb ft) with a 120? ? 5? turn.
Illustration 8 ? bolt torque pattern
Undercarriage Reconditioning Bulletins for Single Tooth
Master Links
SEBF8620
Reusability Guidelines for Single Tooth Master Links
SEBF8621 Shop
Disassembly and Assembly of Single Tooth Master Links
SEBF8622 Field
Removal and Installation of Single Tooth Master Links
Additional Information
The new master links are not compatible with the
old master links in the same track. If one of the former five tooth design
master links has failed, then all four half-links must be replaced with the new
single tooth design.
See Table Below for Parts List Cross Reference
|
D10 Five Tooth vs. Single Tooth Master Link Part
Number Comparison Table |
|||||
|
Links and Link Assemblies |
|||||
|
Former Part Number |
New Part Number |
Description |
Standard PPR Full Links |
Deep Hardened Full Links |
Non PPR Full Links |
|
290-7311 |
369-5963 |
Track Master Link (PIN END, RH) |
X |
X |
|
|
290-7312 |
369-5964 |
Track Master Link (PIN END, LH) |
X |
X |
|
|
234-6943 |
361-6779 |
Track Master Link (BUSHING END, RH) |
X |
X |
X |
|
234-6944 |
361-6780 |
Track Master Link (BUSHING END, LH) |
X |
X |
X |
|
290-7313 |
398-8321 |
Track Master Link (PIN END, RH Non PPR) |
|
|
X |
|
290-7314 |
389-8322 |
Track Master Link (PIN END, LH Non PPR) |
|
|
X |
|
7T-0998 |
372-3874 |
Bolt (Long) |
X |
X |
X |
|
7T-0999 |
372-3875 |
Bolt (Short) |
X |
X |
X |
|
238-9851 |
380-5946 |
Track Link As (PPR) |
X |
|
|
|
320-3055 |
398-5234 |
Track Link As (DpHdn) |
|
X |
|
|
238-9852 |
398-5236 |
Track Link As
(Non PPR) |
|
|
X |
|
D10 Five Tooth vs. Single Tooth Master Link Part
Number Comparison Table |
||||||
|
Track Shoes (Master and New Joint 2) |
||||||
|
Former Part Number |
New Part Number |
Description |
Shoe Width |
Trap Hole Shoe |
Abrasion Resistant Material Shoe |
Round Hole Shoe |
|
|
339-9666 |
Track Shoe-Joint 2 (ES) |
610 mm (24inch) |
|
|
|
|
9W-1867 |
339-9667 |
Track Master Shoe (ES) |
610 mm (24inch) |
|
|
|
|
|
373-7410 |
Track Shoe-Joint 2 (ES) |
710 mm (28inch) |
|
|
|
|
9W-1870 |
373-7411 |
Track Master Shoe (ES) |
710 mm (28inch) |
|
|
|
|
|
*398-5281 |
Track Shoe-Joint 2 (ES) |
760 mm (29.9inch) no clip |
|
|
|
|
6Y-2536 |
*398-5282 |
Track Master Shoe (ES) |
760 mm (29.9inch) no clip |
|
|
|
|
|
398-5285 |
Track Shoe-Joint 2 (ES) |
786 mm (30.9inch) |
|
|
|
|
307-2005 |
398-5286 |
Track Master Shoe (Es) |
786 mm (30.9inch) |
|
|
|
|
|
398-5277 |
Track Shoe-Joint 2 (ES) |
610 mm (24inch) |
X |
|
|
|
234-6029 |
398-5278 |
Track Master Shoe (Es) |
610 mm (24inch) |
X |
|
|
|
|
398-5279 |
Track Shoe-Joint 2 (ES) |
710 mm (28inch) |
X |
|
|
|
234-6030 |
398-5280 |
Track Master Shoe (ES) |
710 mm (28inch) |
X |
|
|
|
|
398-5287 |
Track Shoe-Joint 2 (ES) |
786 mm (30.9inch) |
X |
|
|
|
307-2008 |
398-5288 |
Track Master Shoe (ES) |
786 mm (30.9inch) |
X |
|
|
|
|
433-6742 |
Track Shoe-Joint 2 (ES) |
610 mm (24inch) |
|
X |
|
|
239-2310 |
433-6743 |
Track Master Shoe (ES) |
610 mm (24inch) |
|
X |
|
|
|
398-8318 |
Track Shoe-Joint 2 (ES) |
710 mm (28inch) |
|
X |
|
|
209-4541 |
398-8319 |
Track Master Shoe (ES) |
710 mm (28inch) |
|
X |
|
|
|
433-6744 |
Track Shoe-Joint 2 (ES) |
760 mm (29.9inch) |
|
X |
|
|
243-4373 |
433-6745 |
Track Master Shoe (ES) |
760 mm (29.9inch) |
|
X |
|
|
|
398-5289 |
Track Shoe-Joint 2 (ES) |
786 mm (30.9inch) |
|
X |
|
|
307-2010 |
398-5290 |
Track Master Shoe (ES) |
786 mm (30.9inch) |
|
X |
|
|
|
373-7406 |
Track Shoe-Joint 2 (SES) |
610 mm (24inch) |
|
|
|
|
276-2416 |
373-7407 |
Track Master Shoe (SES) |
610 mm (24inch) |
|
|
|
|
|
373-7408 |
Track Shoe-Joint 2 (SES) |
710 mm (28inch) |
|
|
|
|
276-2418 |
373-7409 |
Track Master Shoe (SES) |
710 mm (28inch) |
|
|
|
|
|
398-5283 |
Track Shoe-Joint 2 (SES) |
760 mm (29.9inch) |
|
|
|
|
312-2808 |
398-5284 |
Track Master Shoe (SES) |
760 mm (29.9inch) |
|
|
|
|
|
398-5256 |
Track Shoe-Joint 2 (SES) |
610 mm (24inch) |
|
X |
|
|
228-7598 |
398-5257 |
Track Master Shoe (SES) |
610 mm (24inch) |
|
X |
|
|
|
433-6740 |
Track Shoe-Joint 2 (SES) |
710 mm (28inch) |
|
X |
|
|
226-0269 |
433-6741 |
Track Master Shoe (SES) |
710 mm (28inch) |
|
X |
|
|
|
398-8314 |
Track Shoe-Joint 2 (SES) |
610 mm (24inch) |
|
|
X |
|
384-3019 |
398-8315 |
Track Master Shoe (SES) |
610 mm (24inch) |
|
|
X |
|
|
398-8316 |
Track Shoe-Joint 2 (SES) |
710 mm (28inch) |
|
|
X |
|
384-3023 |
398-8317 |
Track Master Shoe (SES) |
710 mm (28inch) |
|
|
X |
*No new joint 2 or
Single Tooth Master shoes released for 760 mm (29.9 inch) without a clip. Must
use the new clipped version shoes.
|
D10 Five Tooth vs. Single Tooth Master Link Part
Number Comparison Table |
|||||||
|
Track Groups |
|||||||
|
Former Part Number |
New Part Number |
Description |
Shoe Width |
Trap Hole Shoe |
Abrasion Resistant Material Shoe |
Round Hole Shoe |
Deep Hardened Full Links |
|
373-5148 |
380-5938 |
Track Gp (ES) |
610 mm (24inch) |
|
|
|
|
|
373-5150 |
380-5940 |
Track Gp (SES) |
610 mm (24inch) |
|
|
|
|
|
373-5152 |
398-5262 |
Track Gp (ES) |
610 mm (24inch) |
|
|
|
X |
|
373-5156 |
398-5264 |
Track Gp (SES) |
610 mm (24inch) |
|
|
|
X |
|
373-5158 |
380-5942 |
Track Gp (ES) |
710 mm (28inch) |
|
|
|
|
|
373-5160 |
398-5268 |
Track Gp (ES) |
710 mm (28inch) |
|
|
|
X |
|
373-5162 |
398-5248 |
Track Gp (ES) |
710 mm (28inch) |
X |
|
|
|
|
373-5164 |
380-5944 |
Track Gp (SES) |
710 mm (28inch) |
|
|
|
|
|
373-5166 |
398-5270 |
Track Gp (SES) |
710 mm (28inch) |
|
|
|
X |
|
384-3020 |
398-5266 |
Track Gp (SES) |
610 mm (24inch) |
|
|
X |
X |
|
384-3024 |
398-5272 |
Track Gp (SES) |
710 mm (28inch) |
|
|
X |
X |
|
375-5892 |
398-5235 |
Track Gp (ES) |
710 mm (28inch) |
|
X |
|
X |
|
395-1056 |
398-5274 |
Track Gp (SES) |
610 mm (24inch) |
|
X |
|
X |
Contact Information:
Global Dealer Solutions Network
Parts Technical Support Team
Toll Free -
International: +1-309-266-4421
Electronic
Requests:
Send via Microsoft Customer Relationship Management (MSCRM)
For access and tutorial information: https://gdsn.cat.com/mscrm
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