sil_16-1k2k-09en, rev b

Revisions to this document are notedby a stripe in the lefthand margin

SIL 161k2k09, Rev. BJanuary, 2010Product Code(s): of 16

SUBJECT: Early release, beginning in July 2009, of some components included in the planned 2010 Upratehardware change

MODELS AFFECTED: 1000 and 2000 Product Families Transmissions

Introduction:Hardware modifications are planned to take place for the 2010 Uprate Start of Production (SOP) 1000 and2000 Product Families Transmissions equipped with Allison 4th Generation Controls. In order to streamline themanufacturing changeover process, Allison Transmission is implementing early parts that are interchangeablebackwards prior to the officially scheduled start of the production date. These changes have been implementedin the shafts, filters, rotating clutch assembly, valve body and the main casetoconverter housing separatorplate. The details of these early release parts and their specific interchangeability issues will be described in thepages that follow.

The electronic parts catalog available on the Allison extranet will reflect the changes in the appropriate groups.Continue to use Allison unit history and the electronic Bill of Materials (BOM) that describes the content of a given1000 and 2000 Product Families transmission for specific parts ordering information.

Interchangeability:All of the early release parts described in this SIL are interchangeable backwards under certain circumstances.Some parts will be limited to the start of production 04i hardware modifications S/N breakpoint (see SIL131K2K04) and some back to the initial SOP.

DK / SL5838EN 39645

Copyright 2009 Allison Transmission, Inc. All Rights Reserved.


2010 ShaftsTable 1. 2010 Shafts

Part Name Pre 2010 UprateP/N

2010 Uprate P/N(early release)

Description of Change

2WD Output ShaftAssembly

29536845 29546744 Lube orifice size change

Turbine Shaft Assembly 29539506 29548947 Lube orifice size change

Main Shaft 29536984 29546284 Lube orifice size change

Ground Sleeve andBearing

29531309 29546302 Lube orifice size change

Interchangeability:

CAUTION: 2010 Uprate shaft parts must be used as a set. Replacing individual shafts with 2010 Uprateshaft parts to service Pre 2010 Uprate transmissions, so that a mix of Pre 2010 Uprate and 2010 Uprateshafts are operating together, may cause transmission damage.

If replacement of any of the Pre 2010 Uprate shafts is required, you will need to order all of the shafts listed inTable 1. 2010 Uprate shafts must be operated in sets to achieve reduced spin losses and maintain balancedlube pressure regulation.

Parts Modifications:The lube orifice size has been reduced in diameter in the shafts and cannot be interchanged with the individualcomponent of the set of shafts (beginning with S/N 6310948989). Refer to Figure 1, Figure 2, Figure 3 and Figure 4

Service Parts Information:All Pre 2010 Uprate shafts listed in Table 1 will be completely cancelled from production and maintained for service.The Pre 2010 Uprate shafts will be available for purchase from the Allison Parts Distribution Center (PDC).



Figure 1. 2WD Output Shaft Assembly



Figure 2. Turbine Shaft Assembly



Figure 3. Main Shaft



Figure 4. Ground Sleeve and Bushing



Main Suction Filter (37 Group)Table 2. Main Suction Filter (37 Group)




Suction Filter – ShallowPan

29537965 29542833 Change to accommodate redesign of controls

Suction Filter – StandardPan

29537966 29542824 Change to accommodate redesign of controls

Interchangeability:The 2010 Uprate suction filters listed in Table 2 are completely interchangeable backwards.

Parts Modifications:The 2010 Uprate suction filters have been redesigned to accommodate the 2010 Uprate valve body configuration.Please refer to Figure 5 and Figure 6.

Service Parts Information:The Pre 2010 Uprate suction filters have been completely cancelled. This is a use stock change and once thestock is depleted, only the 2010 Uprate filters will be available for purchase from the Allison PDC.



Figure 5. Suction Filter – Shallow Pan



Figure 6. Suction Filter – Standard Pan



Rotating Clutch—With and Without PTO (14 GROUP)Table 3. Rotating Clutch—With and Without PTO




Housing and PTO GearAssembly

29542802 29547424 Change to accommodate increased horsepower andtorque ratings (reduced size lube orifice)

Housing and Tone WheelAssembly


Housing Assembly andBushing


C2 Hub 29536962 29546705 Change to accommodate increased horsepower andtorque ratings (vent holes added)

Interchangeability:All early release 2010 Uprate parts are interchangeable backwards. The housing is backwards compatible to theS/N breakpoints of the MY06 hardware design change (see SIL 131K2K05).

Parts Modifications:Changes have taken place in the physical appearance of the parts found in Table 3. Please refer to Figure 7 andFigure 8.

Service Parts Information:The Pre 2010 Uprate parts have been completely cancelled. This is a use stock change and once stock is depleted,only the 2010 Uprate parts will be available for purchase from the Allison PDC .



Figure 7. Rotating Clutch Housing Assembly and Bushing



Figure 8. C2 Hub



Oil Pump Group (10 Group)Table 4. Oil Pump Group (10 Group)




Front Support Assembly 29547605 29549723 2010 Uprate front support casting is included in thisassembly

Separator Plate 29541148 29546315 2010 Uprate plate design

Interchangeability:The 2010 Uprate front support assembly listed in Table 4 is not interchangeable backwards.

The 2010 Uprate separator plate (P/N 29546315) and the Pre 2010 Uprate separator plate (P/N 2954118) arethe same, with the exception of one hole location and the size of the slot above the hole. The plate remainsinterchangeable back to the 04i Front Support SOP (SIL 13–1K2K04).

Parts Modifications:The early release 2010 Uprate front support assembly (P/N 29549723) listed in Table 4 uses the same front supportcasting (P/N 29542795) as the Pre 2010 Uprate front support assembly (P/N 29547605), and the 2010 Uprate(early release) ground sleeve and bearing (P/N 29546302). The 2010 Uprate (early release) ground sleeve andbushing (reduced lube orifice) creates the need to change the assembly P/N (beginning with S/N 6310948989).Please refer to Figure 9 and Figure 10 .

Service Parts Information:The Pre 2010 Uprate front support assembly is completely cancelled from production and maintained for service.The 2010 Uprate and the Pre 2010 Uprate front support assembly will be available for purchase from the AllisonPDC.



Figure 9. Front Support Assembly



Figure 10. Separator Plate



Controls Group (16 Group)Table 5. Controls Group (16 Group)


2010 Uprate P/N Description of Change

TCC Solenoid Retainer 29542973 29545990 Added hole to retainer

Interchangeability:The 2010 Uprate TCC solenoid retainer listed in Table 5 is interchangeable backwards to the S/N breakpoints ofthe 4th Generation controls hardware design change (see SIL 141K2K05).

Parts Modifications:The 2010 Uprate TCC solenoid retainer has been modified to accommodate the 2010 Uprate hardware designchange. A hole was added to accommodate the additional 2010 Uprate accumulator. Please refer to Figure 11.

Service Parts Information:The Pre 2010 Uprate TCC solenoid retainer is completely cancelled. This is a use stock change and once stock isdepleted, only the 2010 Uprate TCC solenoid retainer will be available for purchase from the Allison PDC.

Figure 11. TCC Solenoid Retainer


sil_16-1k2k-09en, rev b

Documents

shaft parts

early parts

shafts table

parts modications

individual shafts

set of shafts

early release parts

allison transmission