Engine Brake Application Guide T425A

1 Box 27822 Houston, Texas 77227 Engine BrakeApplicationGuideTecBrake Engine Brake Models:T425AT430 AFor cummins Engines Models:NH/NT Engines855 Series SC & BCNTC/88 NTEngine BrakesModel T425 AThree additional lash-adjusting screws are available for lesscommon Big Cam and Small Cam Engine configurationswhich use the Model T425A kit. These screws are notincluded in the kit and must be ordered separately. The CPL srequiring these optional screws are indicated with an (*) nextto the lash adjusting screw number in the Adjusting Screw Listing:SCREWBRAKECOLORRECESSINPART " " " " " " "YES# Indicates screws are installed in Brake housing at the factoryAdjusting Screw Recess DepthENGINE Brake Application GUIDEFor cummins NH/NT EnginesThis Guide outlines the procedure to use inselecting the correct model TecBrake Engine brakeand lash adjusting screws for cummins 855 BigCam/Small Cam, and NTC/88NT series in this Guide are the CPL numbers of thoseengines, which TecBrake has approved for use withtheir Engine Identification:Obtain the Engine s CPL number.

2 This number canbe used to identify the Engine model and is requiredto determine the correct lash adjusting screw forthe the Engine is a Small or Big Cam 855 series it isalso necessary to determine whether the Engine hasa single or twin entry type turbocharger. Some ofthese engines have been upgraded by the installationof a pulse manifold and twin entry turbo. To determinewhich type turbo is on the Engine , measure theturbine housing. Refer to the turbo identification drawing in this Guide . It is not necessary to determinethe turbocharger type when installing brakes on theNTC/88NT series Brake Kit Listing:BrakeKitModelPart Kit, CompleteT430 ATB960008 Brake Kit, CompleteLash Adjusting Screw Selection:It is important that the proper lash adjusting screwsbe selected and installed.

3 Use of the wrong screwsor an incorrect lash adjustment may cause improperbrake operation and Engine Adjusting Screws Included in Kit:All kits come with the most commonly used lashadjusting screws already installed in the brakehousings. A set of the second most commonly usedlash adjusting screw is also included in the T425 Aand T430 Adjusting Screws:Model T430 AAll necessary adjusting screws are included on BrakeKit to cover all listed IdentificationMeasure turbine housing at distance of 5 from dimension A is less than , the turbo has a single entry dimension A is more than , the turbo has a twin Brake Application Guide for cummins NH/NT Engines ADJUSTING SCREW ADJUSTING MODEL MODELTURBOTURBO 1 NTC335T425 ATB924918 *TB924919 *294 NTCC350 BCIT425 ATB924917TB924916 21 NTC350T425 ATB924918 *TB924919 *298 NTC350 BCIT425 ATB924917TB924916 22 NTA370T425 ATB924918 *TB924919 *306 NTCC290 BCIT425 ATB924917TB924916 23 NTA420T425 ATB924918 *TB924919 *307 NTC350 BCIT425 ATB924917TB924916 26NH230T425 ATB924918 *TB924919 *308 NTCC350 BCIT425 ATB924917TB924916 69 NTC335T425 ATB924918 *TB924919 *309 NTC350 BCIT425 ATB924917TB924916 77 NHTC270T425 ATB924918 *TB924919 *310 NTCC400 BCIT425 ATB924917TB924916101 NTC290T425 ATB924918 *TB924919 *314 NTC350 YSCT425 ATB924918 *TB924919 *113 NTC270T425 ATB924918 *TB924919 *315 NTC350

4 BCIT425 ATB924917TB924916115 NTC927T425 ATB924918 *TB924919 *320 NTE290 BCIT425 ATB924917TB924916117 NHCT270T425 ATB924918 *TB924919 *322 NTC290 BCIT425 ATB924916TJ009916 *132 NTC335T425 ATB924918 *TB924919 *323 NTC250 BCIT425 ATB924916TJ009916 *135 NTA400T425 ATB924918 *TB924919 *324 NTC400 BCIT425 ATB924917TB924916147 NTC350T425 ATB924918 *TB924919 *327 NTC350 BCIT425 ATB924917TB924916154 NTC350T425 ATB924918 *TB924919 *328 NTC350 BCIT425 ATB924917TB924916160 NTC350T425 ATB924918 *TB924919 *329 NTC350 BCIT425 ATB924917TB924916170N855-190T425 ATB924918 *TB924919 *332 NTCC290 BCIT425 ATB924917TB924916175PT290T425 ATB924918 *TB924919 *338 NTC290 BCIIT425 ATB924917TB924916176 NTC250T425 ATB924918 *TB924919 *339 NTC350 BCIT425 ATB924917TB924916178 NTC230T425 ATB924918 *TB924919 *344 NTC290 BCIT425 ATB924917TB924916181PT290T425 ATB924918 *TB924919 *345 NTC350 BCIT425 ATB924917TB924916182 NTC335T425 ATB924918 *TB924919 *347 NTE350 BCIIT425 ATB924916TB924916187 NTC290T425 ATB924918 *TB924919 *348 NTE370 BCIIT425 ATB924916TB924916188 NTC230T425 ATB924918 *TB924919 *349 NTC400 BCIIT425 ATB924917TB924916189 NTC250T425 ATB924918 *TB924919 *353 NTC290 BCIT425 ATB924916TJ009916 *190 NTCC335T425 ATB924918 *TB924919 *354 NTC250 BCIT425 ATB924916TJ009916 *194 NTC290 BCIT425 ATB924916TJ009916 *369 NTC350 BCIT425 ATB924917TB924916196 NTC350T425 ATB924918 *TB924919 *372 NTC230 SCT425 ATB924918 *TB924919 *197 NTC335T425 ATB924918 *TB924919 *373 NTC250 BCIT425 ATB924917TB924916198 NTC335T425 ATB924918 *TB924919 *374 NTC290 BCIT425 ATB924917TB924916199

5 NTC290 BCIT425 ATB924918 *TB924916375 NTC350 BCIT425 ATB924917TB924916204 NTCC350T425 ATB924918 *TB924919 *376 NTC400 BCIT425 ATB924917TB924916205 NTA400T425 ATB924918 *TB924919 *377 NTE290 BCIIT425 ATB924916TB924916207PT270T425 ATB924918 *TB924919 *384 NTC350 SCT425 ATB924918 *TB924919 *215 NTCE290T425 ATB924918 *TB924919 *391 NTE370 BCIIT425 ATB924916TB924916217 NTC290T425 ATB924918 *TB924919 *392 NTE350 BCIIT425 ATB924916TB924916220 NTC230T425 ATB924918 *TB924919 *393 NTC400 BCIT425 ATB924918 *TB924916221 NTC250 SCT425 ATB924918 *TB924919 *402 NTC290 BCIIT425 ATB924917TB924916222 NTC250 BCIT425 ATB924916TJ009916 *407 NTC230 SCT425 ATB924918 *TB924919 *227 NTC290T425 ATB924918 *TB924919 *408 NTCC230 SCT425 ATB924918 *TB924919 *230 NTCE240T425 ATB924918 *TB924919 *414 NTC300 BCIIT425 ATB924917TB924916233 NTC290 BCIT425 ATB924916TJ009916 *433 NTC300 BCIIT425 ATB924916TB924916248 NTC350 SCT425 ATB924918 * TB924919 *437NT240 SCT425 ATB924918 *TB924919 *249 NTCC290 BCIT425 ATB924917TB924916449 NTC400 BCIIT425 ATB924918 *TB924916250 NTCC350 BCIT425 ATB924917TB924916450 NTC350 BCIIT425 ATB924917TB924916254 NTC350 BCIT425 ATB924917TB924916457 NTC400 BCIIMVTT425 ATB924918 *TB924916266 NTC350 BCIT425 ATB924917TB924916471 NTC300 BCIIT425 ATB924916TB924916267 NTC400 BCIT425 ATB924917TB924916473 NTC290 BCIIT425 ATB924917TB924916270 NTCC270 SCT425 ATB924918 *TB924919 *481 NTC400 BCIIT425 ATB924917TB924916277 NTCC270 BCIT425 ATB924917TB924916482 NTC350 BCIIT425 ATB924917TB924916278 NTC350 SCT425 ATB924918 *TB924916483 NTC350 BCIIT425

6 ATB924917TB924916280 NTC335 SCT425 ATB924918 *TB924916485 NTC300 BCIIT425 ATB924917TB924916281 NTCC400 BCIT425 ATB924917TB924916488 NTC230 SCT425 ATB924918 *TB924919 ** Indicates screws are not included in Brake kit. Order separetely. Six required per Inc. Box 27822 Houston, Texas 77227 1999 TecBrake Bulletin No. TB990137B 03/08/99 cummins and Celect are registered trademarks of cummins Engine Co. Brake Application Guide for cummins NH/NT Engines ADJUSTING MODELMODELTURBOTURBO491PT270 BCIIT425 ATB924917TB924916492 NTC270 BCIIT425 ATB924917TB924916497 NTC240 BCIIIT425 ATB924917TB924916498PT240 BCIIIT425 ATB924917TB924916506 FLEET270 BCIIT425 ATB924917TB924916509 NTC350 BCIIT425 ATB924917TB924916510 NTC400 BCIIT425 ATB924917TB924916516 NTC350 BCIIT425 ATB924917TB924916529 NTC300 BCIIT425 ATB924917TB924916530 NTC350 BCIIIT425 ATB924917TB924916531 NTC400 BCIIIT425 ATB924918 *TB924916536 NTC300 BCIIT425 ATB924917TB924916543 NTC350 BCIIT425 ATB924917TB924916547PT270 SCT425 ATB924918 * TB924919 *572 NTC350 SCT425 ATB924918 * TB924919 *578 NTE290 BCIIIT425 ATB924916TB924916579PT270 BCIIIT425 ATB924916TJ009916 *581 NTC350 BCIIIT425 ATB924917TB924916585

7 NTC300 BCIIIT425 ATB924916TB924916586 NTC475 BCIIIT425 ANATB924916588 NTC400 BCIIIT425 ATB924918 *TB924916606 FLEET300 BCIIIT425 ATB924917TB924916611 NTC350 BCIIIT425 ATB924917TB924916612 NTC270 BCIIIT425 ATB924917TB924916625 NTC400 BCIIIT425 ANATB924916632 NTC350 BCIIIT425 ANATB924916633 NTC300 BCIIIT425 ATB924916TJ009916634 FLEET300 BCIIIT425 ANATB924916636 NTC300 SCT425 ATB924918 * TB924919 *637 NTC350 BCIIT425 ATB924917TB924916642 NTC400 BCIVT425 ATB924917TB924916647 NTC320T425 ANATB924916650 BCIII310/325/335T425 ATB924917TB924916651 NTE400T425 ANATB924916659 NTE-350-2T425 ANATB924916669 NTC350T425 ATB924917TB924916673 FLEET300 BCIVT425 ATB924917TB924916674 NTC300 BCIVT425 ATB924917TB924916675 NTC350 BCIVT425 ANATB924917676 NTC400 BCIVT425 ATB924917TB924916695 NTC400 SCT425 ATB924918 * TB924919 *718 FLEET300 BCIVT425 ATB924917TB924916743 NTC3000 BCIIIT425 ANATB924916744 NTC350 BCIIIT425 ANATB924916745 NTC400 BCIIIT425 ANATB924916749 NTC315 BCIVT425 ANATB924917769 NTC350 BCIIIT425 ANATB924916796 NTC315 NBCIVT425 ANATB924917797 NTC350 NBCIVT425 ANATB924917811 NTC300 BCIVT425 ATB924917TB924916812 NTC315 BCIVT425 ANATB924917813 NTC350 BCIVT425 ANATB924917814 NTC400 BCIVT425 ATB924917TB924916* Indicates screws are not included in Brake kit.

8 Order separetely. Six required per kit. ADJUSTING MODELMODELTURBOTURBO827 NTC400 88 NTT430 ANATB924921832 NTC300 NBCIVT425 ATB924917TB924916838 NTC315 88 NTT430 ANATB924922840 NTC350 88 NTT430 ANATB924922891 NTC400 BCIIIT425 ANATB924916905 NTC300/320 BCIVT425 ANATB924917907 NTC300 BCIVT425 ANATB924916910 NTC444 88 NTT430 ANATB924921974 NTC400/365 BCIVT425 ANATB9249161185 NTC400 88 NTT430 ANATB9249211187 FLEET 285 88 NTT430 ANATB9249221188 NTC350 88NT STCT430 ANATB9249211210 NTC444 88NT STCT430 ANATB9249211211 NTC400 88NT STCT430 ANATB9249211256 NTC444 88 NTT430 ANATB9249211280 NTC444 88 NTT430 ANATB9249211285 NTC444 88 NTT430 ANATB9249211286 NTC444 88 NTT430 ANATB9249211324N14-460E(CELECT)T140 ANATB9349161352 FLEET 300 88 NTT430 ANATB924922 Set Slave Piston Lash at ( )

9 ForTecBrake Models T425A and t430a