FEATURES
50% Power Adjustment: Closer power can be increased
by 50% over the minimum closing force for each closer size by rotating the 11/16"
high-shouldered nut on the end of the closer spring tube.
Closer Adjustment Decal: A decal is permanently
affixed to the inside of the closer cover. This decal fully details sweep and latch speed
adjustment, backcheck cushioning, backcheck positioning, and spring power adjustment.
Non-Handed: Pinion shaft extends vertically through
the closer body in both directions. This permits the closer to be positioned on either
right or left hand doors for most applications. Some options, as noted on page 7700-5,
will require that the hand of the closer be specified.
Aluminum Alloy Shelf: Series 7700 closer bodies are
constructed of a special aluminum alloy, carefully selected to accommodate individual
closer characteristics and operating conditions.
Rack & Pinion Operation: Provides a smooth
transmission of power for control of the door through its full opening and closing cycle.
Adjustable Sweep Speed: An independent regulating
valve, hex-key-operated, permits adjustment of the general closing speed.
Adjustable Latch Speed: An independent regulating
valve, hex-key-operated, permits adjustment of the door's speed for approximately the last
5° of the closing cycle.
Adjustable Backcheck Cushioning:
An independent regulating valve, hex-key-operated, provides an adjustable hydraulic
cushion to the door opening speed toward the end of the opening cycle. |
