~All!!!!! TheEngineering Society~ ForAdvancing Mobility~ LandSeaAirandSpace® 400COMMONWEALTH DRIVEWARRENDALE, PA15096 hni "rlr 880813 TheDresser140M/210M Off-Highway Trucks JamesF.Kunz DresserIndustries, Inc. Earthmoving IndustryConference Peoria.Illinois April12-14.19BBDownloaded from SAE International by Imperial College London, Sunday, September 23, 2018Theappearance ofthecodeatthebottomofthefirstpageofthispaperindicates SAE'sconsentthatcopiesofthepapermaybemadeforpersona! orintern~luse,or forthepersonal orinternaluseofspecificclients,Thisconsent isgivenon!hecon~ dition,however, thatthecopierpaythestatedperarticlecopyfeethrough the Copyright Clearance Center,lnc.,Operations Center,P,O.Box765,Schenectady, N,Y,12301,forcopying beyondthatpermitted bySections 107or108oftheU.S. Copyright Law.Thisconsent doesnotextendtootherkindsofcopying suchas copying forgeneral distribution, foradver!ising orpromotional purposes, for creating newcollective works,orforresale. Paperspublished priorto1978mayalsobecopiedataperpaperfeeof$2.50 undertheabovestatedconditions. SAEroutinely stocksprintedpapersforaperiodofthreeyearsfollowing dateof pUblication. DirectyourorderstoSAEOrderDepartment. Toobtainquantity reprintrates,permission 10reprintatechnical paperorper­ mission tousecopyrighled SAEpublications inotherworks,contact IheSAE Publications Division. AllSAEp.Jpe'~JfC Jtll1'JCfNI ~n(j,nde,ed ttl meSAEGloMI/,fob.i,ly Dalaba~e SAEGLOBAL "'OBllITY DATABASE Nopartofthispublication maybereproduced inanyform,in anelectronic retrieval systemorotherwise, without theprior writtenpermission ofthepublisher. ISSN0148·7191 Copyright ©1988SocietyofAutomotive Engineers,lnc. Positions andopinions advanced Inthispaperarethoseof theauthor(s) andnotnecessarily thoseofSAE.Theauthor Issolelyresponsible forthecontentofthepaper.Aprocess Isavailable bywhichdiscussions willbeprintedwiththe paperIfItIspublished InSAETransactions. Forpermission topublishthispaperInfullorInpart,contacttheSAE Publications Division.Persons wishingtosubmitpaperstobeconsidered for presentation orpublication throughSAEshouldsendthe manuscript ora300wordabstractofaproposed manus­ criptto:Secretary, Engineering ActivityBoard,SAE. PrintedinU.S.A.Downloaded from SAE International by Imperial College London, Sunday, September 23, 2018880813 'TheDresser140M/210M Off-Highway 'Trucks JamesF.Kunz DresserIndustries, Inc. ABSTRACT Dresser hasintroduced twoneWtoff­ highway, mechanical drive trucks designed tooperate inthe35to60ton, reardump, classes. These trucks, designated 140Mand210M,replace three previous models whilecovering thesame payload range. Bothdesigns incorporate newelectronic transmission controls and newhydraulics eliminate theneedforan airsystem. Thispaperdescribes the engineering features andsimultaneous 27 monthdevelopment ofbothvehicles.InNovember, 1984,Haulpak Division ofDresser Industries (then WABCO) began development ofapair ofsmall, mechanical drive, off-highway haul trucks. Theobjectiveofthisprogram wastoup-date andsimplify theproduct offering inthe32to54t(35to60 ton)payload classes. Thenewdesign models, designated 140Mand210M, were nominally ratedat32and50t(35and 55ton),respect ively. Functionally, theyreplace threeexisting vehicles, of 32,46,and54t(35,50,and60ton) ratings, whose original design dated backto1957. Both the140M and 210M were developed simultaneously andoffer many newengineering features. Amongthese arEacompletely newplanetary final drive, main frame, body, andcab. Suspensions, hoists, steering, and powertrain components wereredesigned to offer improved performance. A completely newhydraulic system, brake system, andelectronic transmission control system wereincorporated for reliable and efficient machine operation. Theairsystem was eliminated. Thispaper willdescribe eachof these newsystems andcomponents, review thetestprogram, andexplain the vehicle's development. PRODUCT COMPONENTS Explanations and functional specifications for each vehicle component aredeveloped i