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There are rubber bushings with threaded metal
sleeves to mount the operator to the header.
Remove operator to view header mounting holes.
Note: Mounting bolts will hold operator even if
rubber bushings break
Mount header to edge of
hinge side tube for support
(Left hand header shown).
Drill and tap ¼-20 holes across
bottom of header, (top rail of frame)
and up the hinge side as shown.
Pre-drilled wire chase holes
provided across header back
INSTALLATION
Summary of Contents for D-4990
Page 1: ...Precision D 4990 Low Energy Door Operator Product Overview...
Page 6: ...DOOR FORCE GAUGE...
Page 7: ...DOOR FORCE GAUGE...
Page 26: ...PRIMARY APPLICATIONS...
Page 27: ...MINIMUM INSTALLATION REQUIREMENTS...
Page 34: ...CONTROLLER PLUG IN CONNECTORS D 4990 CONTROLLER...
Page 48: ...Adjustment Valves Adjustment Valves...
Page 49: ...SAMPLE ACTIVATION DEVICES...
Page 65: ......