Chamberlain K74-16420 Installation Instructions Manual

LGO Limit Switch Assy
LGO LIMIT SWITCH ASSY
APPLICATION REQUIREMENTS:
Replacement of Limit Switch and/or its components for a Model LGO Operator.
INSTALLATION INSTRUCTIONS
NOTE: Refer to the Ownerʼs Manual supplied with the operator for all mounting and wiring instructions.
REMOVE EXISTING LIMIT SWITCH ASSEMBLY:
Disconnect the wire connections to the limit switches. Remove the six screws from the nut plates. Remove the limit switches, internal grip washers and standoffs from the elec­trical box and discard.
Remove the two 1” screws from the locknuts. Remove the depress plate and depress plate springs and discard.
INSTALLING NEW LIMIT ASSEMBLY:
To install the new limit assembly, follow the steps outlined above in the reverse order. Reconnect the wires to the new limit switches.
DISCONNECT POWER AT THE FUSE BOX BEFORE PROCEEDING. IF NECESSARY REMOVE THE OPER­ATOR FROM ITS MOUNTED POSITION.
OPERATOR MUST BE PROPERLY GROUNDED AND CONNECTED IN ACCORDANCE WITH LOCAL ELEC­TRICAL CODES. NOTE: THE OPERATOR SHOULD BE ON A SEPARATE FUSED LINE OF ADEQUATE CAPACITY.
ALL ELECTRICAL CONNECTIONS MUST BE MADE BY A QUALIFIED INDIVIDUAL.
repLACeMenT KIT
Replacement Kit
K74-16420
K74-16420
WARNING
WIRE CONNECTIONS
Refer to the illustration below and for complete wiring dia ­gram see reverse side.
OPEN
LIMIT
C
(YE) NC NO
(GY)
(YE)(GY)
(BR)
(BR)
NC NO
CLOSE
LIMIT
C
NOTE: Other components not
shown in box for easier viewing.
For more information, please visit www.devancocanada.com or call toll free at 855-931-3334
HOW TO ORDER
REPAIR PARTS
DEVANCO CANADA
19192 HAY ROAD, UNIT Q
SUMMERSTOWN, ON K0C 2E0
TOLL FREE: 855-931-3334
www.devancocanada.com
WHEN ORDERING REPAIR PARTS
PLEASE SUPPLY THE
FOLLOWING INFORMATION:
3 PART NUMBER 3 DESCRIPTION 3 MODEL NUMBER
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