Track Assembly; Powerhead Attachment; Trolley Carriage/ Chain Attachment; Operator Preparation - Chamberlain H Owner's Manual

CAUTION CAUTION
TO AVOID DAMAGE TO DOOR AND OPERATOR,
MAKE ALL DOOR LOCKS INOPERATIVE. SECURE
LOCK(S) IN "OPEN" POSITION.
IF THE DOOR LOCK NEEDS TO REMAIN FUNCTION-
AL, INSTALL AN INTERLOCK SWITCH.
DO NOT CONNECT ELECTRIC POWER UNTIL
INSTRUCTED TO DO SO.
It is imperative that the wall or mounting surface pro-
vide adequate support for the operator.
This surface must:
a) Be rigid to prevent play between operator and
door shaft.
b) Provide a level base.
c) Permit the operator to be fastened securely and
with the drive shaft parallel to the door shaft.
The safety and wear of the operator will be adversely
affected if any of the above requirements are not met.
WARNING
ALL DOORS INTENDED TO BE MOTOR OPERATED
SHOULD BE MANUFACTURED WITH SOLID DOOR
SHAFTS.
CAUTION
Both J and H series operators have dual output
shafts and may be mounted on either the right (stan-
dard) or left side of door, and in either a vertical
(standard) or horizontal mounting position. If you
need to move the drive sprocket, loosen BOTH set
screws, remove the sprocket and key, and place on
the opposite side of the drive shaft. Be sure to tight-
en BOTH set screws securely
Hand Chain Handing
For models H and HJ with manual hoist hand chain
systems, the handing of the operator must be deter-
mined at the time of order. The handing is indicat-
ed by last letter of the model name (R or L). The
hand chain wheel can not be switched on site.
If your installation causes the hand chain to hang in
the door opening, hook the chain off to the side
near the top of the door jamb.
IMPORTANT SAFETY NOTES
SITE PREPARATIONS

OPERATOR PREPARATION

Output
Shaft
4
WARNING WARNING
KEEP DOOR BALANCED. STICKING OR BINDING
DOORS MUST BE REPAIRED. DOORS, DOOR
SPRINGS, CABLES, PULLEYS, BRACKETS AND
THEIR HARDWARE MAY BE UNDER EXTREME TEN-
SION AND CAN CAUSE SERIOUS PERSONAL
INJURY. CALL A PROFESSIONAL DOOR SERVICE-
MAN TO MOVE OR ADJUST DOOR SPRINGS OR
HARDWARE.
CAUTION
For metal buildings, fasten 2" x 2" x 3/16" (or larger)
angle iron frames to the building purlins. Retain
1/2" between frames. See Figure 1.
WARNING
5-1/2"
2-1/4"
WARNING
Shaft Support Bracket
with Bearing (Not Supplied)
Door Sprocket
FIGURE 1
(2) Set
Screws
Key
Drive
Sprocket
W
5-