JAC HFC1061 - Page 24

1.frame
2.rearleafspring
3.rearcenterbolt
4.rearabsorber
5.secondaryspringbracket
6.rearshackleclamp
Usingandmaintenanceofleafspring
1.Whenvehiclerunsfor200kmand
500km during the beginning of
break-inperiod,checkandtighten
U-typeboltonleafspringwithspec鄄
ifiedtorqueunderloadbearingstate.
2.Afterbreak-inperiod,tightenU-
typeboltonleafspringwithspeci鄄
fied torque when vehicle is fully
loaded.Doitalsowhenleafspringis
replacedorresetforrunningevery
2000-3000km.
3.TightenU-typeboltonleaf
springwithspecifiedtorquewhenve鄄
hicleisfullyloadedforrunningfor
2000km-3000km.
4.Checkandtightenexposedbolts
andnutsofthesuspension (withve鄄
hiclefullyloaded)whendoingclass-
one maintenance. Check rubber
partsofthesuspension,iftherubber
partsareworngreatly,replacethem
instantly.
5.Whendoingclass-twomainte鄄
nance,carryoutclass-oneitems
anddismantletheleafspringaswell
aslubricatingit,checkthetransverse
stabilizerrodatthesametime.
6.Whendoingclass-threemainte鄄
nance,carryoutclass-twoitemsand
dismantlealltherubberpartsand
42
Thenextfigureshowsrearsuspensionassembly.
OWNER爷SMANUALfor
HFC1061,HFC1063,HFC1083
seriestrucks
replacenewones.
7.Whenreplacingleafspringand
dismantling or assembling center
bolt,payattentiontotheassembling
directionoffrontandrearsteelplate.
WhentighteningleafspringU-type
boltandnut,screwitusingwell-dis鄄
tributedforceatfirst,thenscrewfront
U-typenutaccordingtospecified
forcemomentandscrewrearones.
Using and inspectionof shockab鄄
sorber:
1.Checktheabsorberfortempera鄄
tureafterrunningacertainlengthon
badroadsurface(usuallymorethan
10km)Thereisnoresistanceifthe
temperatureislow(lowerthanair
temperature)andshockabsorption
doesn'tfunction.Ifoneabsorberhas
muchlowertemperature than the
symmetricalone,thelowerone'sre鄄
sistanceismuchmoresmaller.Low鄄
erresistanceresultfromlackinginoil
orfromdamageofsomeimportant
parts,andtheabsorberthatlackin
resistanceshouldberemovedtoin鄄
spect.
2.Checktheshockabsorberforoil
leakifcontinuousabnormalvibration
isdetectedinrunning.Oilleakshould
bedealtwithintime,sothatthe
shockabsorbercanworknormally.
3.Checkabsorberwhenmaintaining
vehicle.Tocheckabsorber,stickup
itandholditslowerendbyvise,
thenpullandpressitforseveral
times. Normally the resistance is
biggerwhenpulled,otherwisethe
absorberisdamagedorlackinoil.
Repairandreplacepartsandadd
absorberoilintimetoavoidserious
damage.
4.Ifit'snecessarytoreplaceab鄄
sorberrod,replaceoilsealingatthe
sametime.Ifnecessary,don'tdis鄄
mantlevalvepartscasually.
5.Whendoingclass-threemainte鄄
nance,dismantleandcleantheab鄄
sorber,replacetheabsorberoil.Don't
forgetcleaningwhenaddingoil.
43