Merik 501M El Manual Del Propietario página 8

ASSEMBLY STEP 2
Install Trolley
AS A TEMPORARY
SCREWDRIVER INTO HOLE IN FRONT END OF
T-RAIL.
Attach trolley threaded shaft to trolley with lock
washer and nuts as shown.
Temporary Stop
Screwdriver
ASSEMBLY STEP 3
Fasten T-Rail to Opener and
Attach Chain Spreader
PROCEDURE: Place the opener on packing
material to protect the cover. For convenience,
place a support under the chain pulley bracket.
Remove the (2) 5/16"-18x1/2" washered screws
mounted in the top of the opener. Align holes in
back end of T-rail with holes in opener. Fasten the
rail with the (2) washered screws previously
removed and tighten securely.
CAUTION: USE ONLY THESE SCREWS! Use of
any other screws will cause serious damage to
door opener.
Attach chain spreader with #8x1" hex screws and
washers as shown
Insert a 5/16"-18x7/8" hex screw into trolley stop
hole in T-rail as shown. Tighten securely with a
5/16" lock washer and nut.
STOP, INSERT A
Trolley
Inner Nut
5/16"
Lock Washer
5/16"
Outer Nut
5/16"
Slide trolley assembly along rail to screwdriver stop.
NOTE: If trolley hits against nut on T-rail, bolts
and nuts were attached from the wrong side and
must be repositioned. Review Step 1.
USE ONLY THOSE SCREWS MOUNTED
IN TOP OF OPENER. FAILURE TO DO SO
WILL CAUSE SERIOUS DAMAGE TO
OPENER.
Washers
Washered Screws
5/16"-18x1/2"
Hex Screw
5/16"-18x7/8"
Trolley
Stop Hole
T-rail
(Back Section)
Lock Washer
5/16"
Nut
5/16"-18
8
Trolley
Threaded
Trolley
Shaft
#8x1" Hex Screws
Chain Spreader
USE ONLY THIS
TYPE AND SIZE
SCREW