Wayne-Dalton 800 - Drop Stop Device Function

www.Wayne-Dalton.com
349981 REV2_05/17/2016
©
Copyright 2016 Wayne Dalton, a division of Overhead Door Corporation
45
DSD (Drop Stop Device) Function
WARNING
The Drop Stop Device (DSD) must be adjusted when making motor operator connections. Failure to adjust properly may result in serious injury
or death. The door installer must be present with the Drop Stop Device (DSD) Installation Manual in possession when the door is rst operated
electrically. Carefully perform all tests set forth below and make any adjustments..
Drop Stop Device (DSD) Function
The function of the Drop Stop Device (DSD) is to minimize the risk of the door closing without control of the motor. The correct spring tension of the pawl of
the Drop Stop Device (DSD) is critical to the functionality of the Drop Stop Device (DSD) and is adjustable. The spring tension must be adjusted tight enough
such that normal operation of the door (with or without a motor operator) will not engage the pawl into the stator ring, yet loose enough so that rapid
rotation will engage the pawl.
Component Identication
STANDOFF
STATOR RING
ROTOR HUB
NON DRIVE END
HEADPLATE
PAWL
STATOR RING
SET SCREWS
CATCH
TENSION SPRING
ADJUSTMENT CLIP
ROTOR HUB
PAWL
LATCH
ADJUSTABLE
CLIP
TENSION
SPRING
STANDOFF
NON DRIVE END
HEADPLATE
DSD (DROP STOP DEVICE) FRONT VIEW
Please note that components and component lo-
cations are shown here for REFERENCE ONLY. Your
unit installation and component locations may be
dierent.
STANDOFF
STATOR RING
ROTOR HUB
NON DRIVE END
HEADPLATE
PAWL
STATOR RING
SET SCREWS
CATCH
TENSION SPRING
ADJUSTMENT CLIP
ROTOR HUB
PAWL
LATCH
ADJUSTABLE
CLIP
TENSION
SPRING
STANDOFF
NON DRIVE END
HEADPLATE
DSD (DROP STOP DEVICE) FRONT VIEW
Non-Drive End
Headplate
Adjustable
Clips
Set Screw
Standoffs
Tension
Springs
Pawl
Latch
Stator
Ring
Rotor
hub
Pawl
Catch