30SPECIFICATIONS
Bearingcaps1to6areattachedwithoneboltontheenginerightsideandtwobolts
ontheengineleftside,whilebearingcap7isattachedwithonlyoneboltperside.
Tightentheboltsinthefollowingstepsasillustrated:
Note:Tightentheboltsinnumericalorderfrombearingcap1to7or7to1,except
instep2.
Step1:Withcamshaftandbearingcapsinplace,tightenthe
markedboltsofbearingcaps1to7..........................................25±3Nm(19±2ft-lb)
Step2:Withrockershaftinplace,tightenthe
markedbolts(instages)intheorder4,3,5,2,6,1,7..............60±5Nm(44±4ft-lb)
Note:Theboltsmustbetightenedinstagestoensurethattherockerarmshaftis
seatedwithoutbending.
Step3:Angletightenmarkedboltsofbearingcaps1to7......................90±5degrees
Step4:Tightenthemarkedboltsofbearingcaps1to6..........25±3Nm(19±2ft-lb)
Step5:Angletightentheboltsofbearingcaps1to6...........................120±5degrees
Step6:Loosenthemarkedboltsofbearingcaps1to6.
Step7:Tightenthemarkedboltsofbearingcaps1to6..........25±3Nm(19±2ft-lb)
Step8:Angletightentheboltsofbearingcaps1to6andtheboltofbearingcap
7.............................................................................................................120±5degrees
Note:Whenonlytherockerarmhasbeenloosened,step1andstep3arenotrequired.
V olvoEngineBrakecontrolvalve............................................24±4Nm(18±3ft-lb)
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