Usage:
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July 2003 |
NEW LINK ASSEMBLY AND TOUGH STEEL SEGMENTS FOR D5G/C TTT, 939C TTL
New link assemblies with a track bushing with increased stepped bushing outer diameter (60.7 mm) and tough steel segments are now available in the parts system. These link assemblies can be used on current D5G/D5C/939C machines in the field. The new link assemblies must be used with the new tough steel segments. See part number information and serviceability sections.
Features and Benefits
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Features |
Benefits |
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? Larger Stepped Bushing (60.7 mm) |
? Approximately 30% More Bushing Wear Life ? Improved Wear Balance with Track Link |
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? Tough Steel Segment |
? Improved Wear Resistant Material |
Part Numbers
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Name |
Former Part Number |
New Part Number |
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Link Assembly (37 Section) |
6I9527 * |
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Link Assembly (39 Section) |
6Y5407 * |
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Bushing |
9G8588 ** |
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Sprocket Segment (4 tooth) (Tough Steel) |
-- |
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Sprocket Segment (5 tooth) (Tough Steel) |
-- |
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Sprocket Segment (4 tooth) |
114-9278 * |
-- |
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Sprocket Segment (5 tooth) |
6I9526 * |
-- |
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Sprocket Segment (4 tooth) |
-- |
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Sprocket Segment (5 tooth) |
-- |
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Bushing and Seal Group (39 Sections) |
*** |
* Still available for use in Japan.
** Continued to be serviced for replacement bushing for the former link assemblies.
*** Available 4th Qtr 2003.
Adaptability
The new link assemblies and tough steel segments are now available in the parts department for the current and non-current machines.
? Former link assemblies will be service replaced by a new link assembly and (2) 4 tooth and (3) 5 tooth tough steel segments.
? Former bushing (56.6 mm diameter) part number 9G-8588 will continued to be offered for repairing or replacing individual bushings in the former link assemblies. If entire sets of bushings are required, a new bushing and seal group will be available with the larger stepped bushings (4th quarter 2003).
? Former segment will be service replaced by the new tough steel segment. To obtain maximum life improvement former and new segments should not be mixed.
? Former segments must not be used with the new larger stepped bushing. This could accelerate bushing wear or cause track ?popping? or ?jumping?.
? New tough steel segments also replace segments used for the Rotating Bushing Track option.
? New segment can be used with former link assemblies and bushing (such as after bushing turn) without detrimental effect on bushing life.
? New segments are positively identified (similar to other tough steel segment) by the new part number, and by a ?scallop? under each tooth. This is visible when observing sprocket segments mounted on the machine - see below.
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Custom Track Service (CTS)
When performing CTS refer to the 15th Edition of the CTS Handbook (Media Number PEKP9400-03), see the following:
? Track Links see D5G/C section and table for 6Y9261/62 links
? External Bushing Wear see Attachment I
? All other components use tables in D5G/C section
TCRobertson
Undercarriage Marketing Division
Parts and Service Marketing
CV4111 ? (309) 675-7879
E mail: Robertson_Thomas_C@CAT.com
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