Wayne-Dalton 451 - Manual (Page 10)

10
FIG N
ONE or TWO SPRINGS (2” or 2-5/8” ONLY)
LEFT HAND DRUM
RED
WINDING CONE
BLACK
RIGHT HAND DRUM
BLACK
WINDING CONE
RED
3” MINIMUM SPRING PAD WIDTH
(6” IF FOR TROLLEY OPERATOR)
CENTER SUPPORT BRACKET
TWO SPRINGS (3-3/4”) TUBULAR OR 1 PIECE SOLID SHAFT
LEFT HAND DRUM
RED
WINDING CONE
RED
WINDING CONE
BLACK
9” MINIMUM SPRING PAD WIDTH
NOTE: 6” SPRINGS UTILIZE SOLID SHAFTS
3-1/2” RIGHT HAND DRUM
BLACK
FIG M-3 FIG M-4
STEEL PRE-CAST
(2) 1/2” X 3”
SLEEVE ANCHOR
NOTE: MUST SECURE
SLEEVE ANCHORS TO
BUILDING FIRST , THEN
ATTACH BRACKETS TO
ANCHORS.
(3) 5/16” X 1” SELF-DRILLING
AND TAPPING SCREWS