SOS BRAKE & BRAKING SYSTEM QUESTIONS WITH CORRECT ANSWERS

SOS BRAKE & BRAKING SYSTEM
QUESTIONS WITH CORRECT ANSWERS
InJHaJHsingleJHanchorJHbendixJHdrumJHtypeJHrearJHbrakeJH-JHANS--
theJHsecondaryJHliningJHisJHlongerJHthanJHtheJHprimary

ComparedJHtoJHtheJHsecondaryJHshoeJHliningJHareasJHofJHdrumJHbrakes,JHtheJHprimaryJ
HshoeJHliningJHareaJHis:JH-JHANS--smallerJHandJHgoesJHtowardJHtheJHfrontJHofJHtheJHcar


DuringJHaJHbrakeJHoverhaul,JHyouJHnoticeJHthatJHtheJHbrakeJHfluidJHseemsJHtoJHbeJHver
yJHdirtyJHandJHdarkJHinJHcolor.JHWhatJHshouldJHyouJHdo?JH-JHANS--
flushJHtheJHsystemJHbeforeJHtheJHnewJHpartsJHareJHinstalled

InJHorderJHtoJHbleedJHtheJHsystemJHonJHaJHvehicleJHequippedJHwithJHpowerJHbrakes:JH-
JHANS--NoneJHofJHtheJHabove


WhichJHofJHtheJHfollowingJHcouldJHbeJHaJHsymptomJHofJHover-torquedJHlugJHnuts?JH-
JHANS--AJHbrakeJHpedalJHpulsationJHduringJHbraking.


WhichJHofJHtheJHfollowingJHdescribesJHtheJHproperJHsequenceJHtoJHbleedJHbrakeJHlinesJ
HonJHmostJHrearJHwheelJHdriveJHvehicles:JH-JHANS--RR,JHLR,JHRF,JHLF


InJHdiscJHbrakeJHcaliperJHassemblies,JHtheJH"squareJHcutJHseal"JHisJHusuallyJHlocated:JH
-JHANS--InJHtheJHcaliperJHpistonJHbore

WhenJHperformingJHaJHcaliperJHoverhaul,JHwhatJHwouldJHyouJHuseJHtoJHremoveJHtheJHp
istonsJHfromJHtheJHcalipers?JH-JHANS--CompressedJHair

SlidingJHcaliperJHdiscJHbrakeJHpadsJHareJHkeptJHinJHadjustmentJHbyJHtheJH-JHANS--
SquareJHcutJHpistonJHseal

AJHcrackedJHorJHtornJHvacuumJHdiaphragmJHinJHaJHpowerJHboosterJHwouldJHlikelyJHcau
se:JH-JHANS--HardJHpedalJHwithJHveryJHhighJHeffortJHrequired

WhenJHtheJHbrakesJHareJHappliedJHonJHaJHcarJHwithJHdisc-
drumJHbrakes,JHaJHvibrationJHorJHpulsatingJHmovementJHisJHfelt.JHWhatJHcanJHcauseJHt
hisJHproblem?JH-JHANS--AJHrotorJHthicknessJHvariation

WhileJHtestJHdrivingJHaJHcar,JHtheJHmechanicJHfindsJHthatJHtheJHrightJHfrontJHbrakeJH"gra
bs".JHTheJHmostJHlikelyJHcauseJHofJHthisJHproblemJHis:JH-JHANS--
BrakeJHfluidJHorJHgreaseJHonJHtheJHbrakeJHlinings.

, DuringJHaJHroadJHtest,JHyouJHfindJHthatJHwhenJHnormalJHbreakingJHpressureJHisJHapplie
dJHtheJHpedalJHslowlyJHgoesJHtoJHtheJHfloor.JHWhatJHisJHtheJHlikelyJHcauseJHofJHthisJHpr
oblem?JH-JHANS--AJHleakingJHmasterJHcylinderJHprimaryJHpistonJHseal.

AJHrattleJHisJHaJHsingleJHpistonJHdiscJHbrakeJHassemblyJHwhichJHgoesJHawayJHwhenJHth
eJHbrakesJHareJHappliedJHisJHmostJHlikelyJHaJHresultJHof:JH-JHANS--
LooseJHpadsJHinJHtheJHcaliper

WhichJHofJHtheJHfollowingJHwouldJHmostJHlikelyJHcauseJHdraggingJHbrakes?JH-JHANS--
AJHdefectiveJHvehicleJHloadJHsensor

WithJHtheJHcarJHstandingJHstill,JHyouJHcanJHhearJHaJHsqueakingJHnoiseJHwhenJHapplying
JHtheJHbrakeJHpedalJHslowly.JHWhatJHcouldJHcauseJHthisJHnoise?JH-JHANS--
DryJHbackingJHplateJHcontactJHsurfaces.

ThereJHisJHaJHscrapingJHsoundJHcomingJHfromJHoneJHrearJHbrake.JHTheJHsoundJHstopsJ
HwhenJHtheJHbrakesJHareJHapplied.JHWhatJHisJHtheJHlikelyJHcauseJHofJHtheJHproblem?JH-
JHANS--AJHbrokenJHshoeJHhold-downJHspringJHorJHpin


IfJHaJHdrumJHbrakeJHself-adjusterJHseizesJHup,JHtheJHlikelyJHresultJHwillJHbe:JH-JHANS--
AJHlowJHpedal

WhichJHofJHtheJHfollowingJHcanJHbeJHusedJHtoJHcheckJHforJHrotorJHthicknessJHvariation?
JH-JHANS--DialJHindicator


OnJHaJHvehicleJHwithJHaJHdisc/
drumJHbrakeJHsystem,JHtheJHrearJHwheelsJHlockJHupJHunderJHhardJHbraking.JHTheJHmos
tJHlikelyJHcauseJHis:JH-JHANS--AJHdefectiveJHproportioningJHvalve

AfterJHputtingJHaJHbearingJHraceJHinJHaJHhub,JHyouJHnoticeJHthatJHtheJHnewJHraceJHisJHl
ooseJHandJHcanJHspinJHinJHtheJHhub.JHWhatJHshouldJHyouJHdo?JH-JHANS--
ReplaceJHtheJHhub

WhenJHadjustingJHdisc-drumJHbrakes,JHyouJHshould:JH-JHANS--
AdjustJHtheJHrearJHbrakesJHafterJHreleasingJHtheJHparkingJHbrakes

WhatJHtypeJHofJHrotorJHsurfaceJHprovidesJHtheJHbestJHbrakingJHwithJHnewJHpads?JH-
JHANS--AJHsmooth,JHflatJHsurface


WhichJHofJHtheJHfollowingJHisJHaJHquickJHwayJHtoJHdetermineJHwhetherJHtheJHmasterJHc
ylinderJHisJHbad?JHThereJHareJHnoJHexternalJHleaksJHinJHtheJHsystem.JH-JHANS--
PumpJHupJHtheJHbrakeJHpedal,JHthenJHholdJHitJHfirm.JHIfJHtheJHpedalJHslowlyJHdropsJHtoJ
HtheJHfloor,JHtheJHmasterJHcylinderJHisJHbad.


YouJHareJHrebuildingJHaJHmasterJHcylinder.JHWhatJHshouldJHyouJHuseJHtoJHlubricateJHth
eJHinternalJHparts?JH-JHANS--BrakeJHfluid