Chamberlain MR850, MR650 manual Testing TH E D OOR, INS TA LLI NG TH E Stop C OLL AR

4	TESTING		TH E D OOR
Complete		the following testto ensureyourdo or iswell
ba	lanced,	and	not stickingor bindi ng:

•Disablealllocksand remove any ropesconnectedtothe g arage door.

•Lifthedoortoabouth alfway and thenrelease itThe. doorshould remainspringbalanced.

•Ra iseand lowerthe doortodetermine ifthere areany stickingorbinding points.

•Ifyourdoordoes notho ldinplace orthe doorbindsor sticks,calla qualified doortechnician before installingthe opener.

5 INS TA LLI NG TH E STOP C OLL AR

•Installthestopcollaronthe oppositend tow here

the openeris to be installed. Non opener side Opener side

•Fitthestopcolarha rdag ainstth e bossofthedoor drum.Ensure the U -boltho lding the doorshaftto thedoor bracketis tightly secured.

SAFETY CHECK! Is the stop collar installed?

YES: proceed to the next

step

NO: install the stop collar

before proceeding

6 INSTA LL ING THE W EIGH T B A R (PROVIDED)

•Place the we ightinthecentreofthedoor(as show n).

•Use a pencilto markthe two h olepositions.

•Ifthedoorcurtaindoes notha ve a handle youwillneed todrilltwo 5.5 mmh olesthrough thetwomarked positions, then place thewe igh tbarontheinsideofthe door.

•Use thebolts,wash ersand nuts(provided)to fasten thew eigh tbarinplace.

NOTE:	If the door has a liftinghandle,				remove	the
han dle,	nuts &	b olts. Place	weight bar over			the
ha ndle	holes,	insert extend ed		bolts	through the
weightbar & fas ten han dle ba			ck	inplace.

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