Super SJC - SJC Inspection Standards: Components

19
Item Inspectionmethod Limitofuse Remedy
lengthofwear
brokentooth
crack
Whenanybrokentoothisfound.
Whenfoundvisually.
Whenthedegreeofwearexceeds0.5mm..
Circular
Cam
Spring
Replace
Replace
Replace
VisuallycheckifCamreturns 
automaticallytoanoriginal
positionwhenmovedby
hands.
Visuallycheckclearanceof
springcoils.
WhenCamdoesnotreturntoitsoriginal
position
duetothelossofadequaterepulsivepower 
fromdeformation.
Whenthespringbecomes5%shorterthan
itsoriginallengthorwhentheclearance
betweenthecoilsbecomessmall.
Visuallycheckandmeasure
thedegreeofwear.
Visuallycheckorusecolor
dyestofindcracksatthe
bottomcamteeth.
Visuallycheckforbroken
camteeth.
Cam
Holder
Measureeachsectionfor
wear.
WhenthespaceamongBody,CamHolder
andCambecomeslarge,andexceeds
0.5mm.
Retaining
Ring
Measuredeformation.
φD
morethan0.3mm
（mm）
22.0 22.0 29.7 30.5
D
2 310.5
Whenthediameterofanyonepartof
circumferenceofanyholeexceedsthe
respectivesizeinthetablebelow.
Whendeformationexceeds0.3mm.
Ratedcapacity 
(ton)