CREASING/FOLDINGPage30
SECTIONH
ChangingSensors
LeadEdgeSensor
TheLeadedgesensorassemblyispositionedjustaftertheinputrollersandishousedina
blackdelrinmachinedblock.Tochecktheoperationofthissensor,insertapieceofpaper
betweentherollersandfeedbyhanduntilthesensoriscovered,atwhichpointtheRed
LED3willilluminateonthemaincontrolPCB.
Replacement.
1.Openthelaysideandoperatorsidedoors.
2.Removethetopinfeedroller.
3.Unscrewthetwocapheadallenscrewsandliftthesensorhousingout.
4Replacethesensorwithanewunitandretightenthescrews.
Reassemblyisthereverseprocedure.
Thecrunchsensorisabeamprojectedacrossthemachinejustinfrontofthebladeand
abovethepaperpath,whenthebeamisbrokenthemachinewillstop.
Thereceiverishousedinthesideplateofthemachineandisontheoperatorside,while
thetransmitterishousedsimilarlybutontheoppositeside.
1.UnplugfrommaincontrolPCB&removegreenplug-feedcablethroughapertures.
.
CrunchSensorAssembly:-
(Seepage65)
(Seepage65)