Step 5 Tighten The Belt And Install The Sprocket Cover - Chamberlain HD620EV Manual

STEP 5 Tighten the belt and install the sprocket cover
ALWAYS keephand clear ofsprocketwhileoperating opener,
Securely attachsprocketcoverBEFOREoperating,
1, Spinthe innernutand lockwasherdownthe trolleythreaded shaft,awayfrom thetrolley
2, To tightenthe belt,turn outernut inthe directionshown untilthe lineon the springretainer
plate isvisible,Besurethe belt is nottwisted,andthe ribbedside facesthe rail,
3, Tightenthe innernutto securethe adjustment, T his setsthe springto optimumbelttension,
4, Positionthe sprocketcoveroverthe sprocket a sshown andfastentothe mountingplatewith
8x3/8"hex screwsprovided,
You have nowfinished assembling yourgaragedooropener. P lease readthefollowing warnings
beforeproceeding tothe installation section.
HARDWARE
HexScrew #8x3/8"
(Packed with the
sprocket c over)
Outer Nut Spring Retainer
Inner Nut
CORRECT
®
iNCORRECT
LockWasher
Line
Line
f t----- HexScrew#8x3/8"
- Sprocket Cover