Chamberlain B751C - Installation: Rail and Opener Positioning; STEP 3 Attach Rail to Header Bracket; STEP 4 Position Garage Door Opener


+PUVCNNCVKQP
56'2  #VVCEJ VJG TCKN VQ VJG JGCFGT DTCEMGV
 2QUKVKQP VJG QRGPGT QP VJG ICTCIG HNQQT DGNQY VJG JGCFGT DTCEMGV7UG RCEMKPI OCVGTKCN CU C
RTQVGEVKXG DCUG
016' +H VJG FQQT URTKPI KU KP VJG YC[[QW YKNN PGGF JGNR *CXG UQOGQPG JQNF VJG QRGPGT
UGEWTGN[ QP C VGORQTCT[ UWRRQTVVQ CNNQY VJG TCKN VQ ENGCT VJG URTKPI
 2QUKVKQP VJG TCKN DTCEMGV CICKPUV VJG JGCFGT DTCEMGV
 #NKIP VJG DTCEMGVJQNGUCPF LQKP YKVJ C ENGXKURKP CU UJQYP
 +PUGTV C TKPI HCUVGPGT VQ UGEWTG
HARDWARE
Clevis Pin
5/16"x1-1/2"
Ring Fastener
Clevis Pin
Ring Fastener
56'2  2QUKVKQP VJG ICTCIG FQQT QRGPGT
6Q RTGXGPVFCOCIG VQ ICTCIG FQQT TGUV ICTCIG FQQT QRGPGT TCKN QP Z RNCEGF QP VQR UGEVKQP QH
FQQT
 4GOQXG VJG RCEMKPI OCVGTKCN CPF NKHV VJG ICTCIG FQQT QRGPGT QPVQ C NCFFGT
 (WNN[QRGP VJG FQQT CPF RNCEG C Z NCKF HNCV WPFGT VJG TCKN(QT QPGRKGEG FQQTU YKVJQWV
VTCEMU NC[ VJG Z QP KVU UKFG
016' # Z KU KFGCN HQT UGVVKPI VJG FKUVCPEG DGVYGGP VJG TCKN CPF VJG FQQT +H VJG NCFFGT KU PQV VCNN
GPQWIJ [QW YKNN PGGF JGNR CV VJKU RQKPV +H VJG FQQT JKVU VJG VTQNNG[ YJGP KV KU TCKUGF RWNN VJG VTQNNG[
TGNGCUG CTO FQYP VQ FKUEQPPGEVVJG KPPGT CPF QWVGT VTQNNG[ 5NKFG VJG QWVGT VTQNNG[ VQYCTF VJG ICTCIG
FQQT QRGPGT 6JG VTQNNG[ ECP TGOCKP FKUEQPPGEVGF WPVKN KPUVTWEVGF
Connected Disconnected
One-piece door
without tracks
2x4 2x4
All other
door types