Brakepipelineisarrangedasfol鄄
lows:compressedairproducedby
aircompressor1comesintothe
mainairreservoir3 (namelywetair
reservoir);andthentheairisseparat鄄
edintotwoandcomeintothefront
chamber9oftheauxiliaryairreser鄄
voirandtherearchamber4ofthe
mainairreservoir,thefrontchamber
9oftheauxiliaryairreservoirandthe
rear chamber 4 of the main air
reservoir.Compressedairinthefront
chamber9oftheauxiliaryairreser鄄
voirandtherearchamber4ofthe
mainairreservoircomeintoupper
andlowerchambersofbrakevalve
8,andthentheairistransported
separatelytorearbrakechamber12
andfrontbrakechamber2.Check
valves10installedonendsoftheair
inletpipesofthefrontchamber9of
theauxiliaryairreservoirandtherear
chamber4ofthemainairreservoirin
casethatcompressedairintheair
reservoirflowsbackwards.Thereare
interfacesforairpressuregauge7
and pressure-adjusting valve 6.
Whenairpressurereaches0.74-
0.84Mpa,compressedairpropsup
valve of the pressure-adjusting
valve,andcomesintouppercoverof
theaircompressortomakeairinlet
valveopenandtheaircompressor
idles.Whenbrakevalve8isde鄄
pressed,frontandrearbrakecham鄄
ber2and12operateatthesame
time,whichmakesfrontandrear
brakesoperate.Whenthebrakeped鄄
alisreleased,compressedairin
frontandrearbrakechambersgoin鄄
totheatmospherebyfrontandrear
air-deflatingvalves11and13.
52
OWNER爷SMANUALfor
HFC1061,HFC1063,HFC1083
seriestrucks
1.returnspringlocatingpin
2.rollershaft-brakeshoe
3.roller-brakeshoe
4.grippingring-brakeshoeroller
shaft
5/18.frontbrakeshoewithlineras鄄
sembly
6/19.frontbrakefrictionplate
7.brakecam
8.frontbrakebaseboardwithliner
assembly
9.frontbrakedustcap
10.hexbolt
11.frontbrakeairchambersupport
framewithlinerassembly
12.frontleftbrakeairchamberas鄄
sembly
13.hexbolt
14.frontbrakeadjustingarmas鄄
sembly
15.shoeshaftfixedbolt
16.frontbrakeshoe-shoeshaft;
17. front and rear brake shoe
shaft-liner;18.returnspring
Brakeassembly
Thefunctionofbrakeistoutilize
powerproducedbyfrictionbetween
brakedrumandbrakeshoesliceto
absorbkineticenergyofvehicleto
decelerateorstopthevehicle.Front
andrearbrakesofthisbrakesystem
adoptimbalancedstructureandare
mainlycomposedofbrakechamber,
brakearmandbrake
53