Assembly Instructions

Page 6
STEP 1 - INSTALL VERTICAL TUBE AND DAMPER
Using the damper, damper rod and 1-e-clip, install the eyelet end of the
damper to the damper rod using 1-e-clip. The damper comes with a
preinstalled clip on the clevis end side. Remove clip, slide clevis end over the
drive tube cam, and reinstall clip.
Using 2-5/16x2” screws, 2-1” spacers, 1-5/16” nylon lock nut, 1-5/16”
washer, and 1-damper rod, install the vertical ladder stop to each drop down
unit. The inner mounting point will use the 5/16” washer and nut, While the
outer mounting point will use the damper rod for the 5/16x2” screw.
It is recommended to use thread locking compound on the 5/16x2” screw
that threads into the damper rod. Torque both the 5/16” nut and damper
rod to 17 ft-lbs.
Repeat with the other drop down unit.
B
A
APPLY THREADLOCKING COMPOUND TO
END OF OUTER 5/16X2" SCREW
STEP 1- INSTALL VERTICAL TUBE AND DAMPER
Torque to 17 ft-lbs
USING 2-5/16X2" SCREWS, 2-1" SPACERS, 1-5/16" NYLON LOCK NUT, 1-5/16" WASHER, AND 1- DAMPER ROD, INSTALL THE
VERTICAL TUBE TO EACH DROP DOWN UNIT. THE INNER MOUNTING POINT WILL USE THE 5/16" WASHER AND NUT,
WHILE THE OUTER MOUNTING POINT WILL USE THE DAMPER ROD FOR THE 5/16X2" SCREW. IT IS RECOMMENDED TO USE
THREADLOCKING COMPOUND ON THE 5/16X2" SCREW THAT THREADS INTO THE DAMPER ROD. TORQUE BOTH THE 5/16" NUT
AND DAMPER ROD TO 17 FT-LBS
INSTALL THE EYELET END OF THE DAMPER TO THE DAMPER ROD USING 1X E-CLIP. THE DAMPER COMES WITH A PREINSTALLED
CLIP ON THE CLEVIS END SIDE. REMOVE CLIP, SLIDE CLEVIS END OVER THE DRIVE TUBE CAM, AND REINSTALL CLIP.
Torque to 17 ft-lbs
KNAACK L.L.C.
CONFIDENTIAL, PRINTED
COPIES ARE NOT TO BE
REMOVED FROM SITE
WITHOUT WRITTEN CONSENT.
THIRD ANGLE PROTECION
FORMAT
SW
PAGE NUMBER
SCALE:
DATE:
DRAWN BY:
PART NAME:
MATERIAL:
TOLERANCES=
(EXCEPT AS NOTED)
ANGULAR
±1°
LINEAR
±.031
=CONTROL DIMENSION
1:24
2291-3-01 INSTALL 1
PAGE OF
194
PART NUMBER: REV.
REV.
PART NUMBER:
VERTICAL LADDER
STOP
5/16 x 2” SCREWS
1” SPACER
DAMPER
ROD
DAMPER
E-CLIP
5/16 LOCK NUT5/16 WASHER
B
A
APPLY THREADLOCKING COMPOUND TO
END OF OUTER 5/16X2" SCREW
STEP 1- INSTALL VERTICAL TUBE AND DAMPER
Torque to 17 ft-lbs
USING 2-5/16X2" SCREWS, 2-1" SPACERS, 1-5/16" NYLON LOCK NUT, 1-5/16" WASHER, AND 1- DAMPER ROD, INSTALL THE
VERTICAL TUBE TO EACH DROP DOWN UNIT. THE INNER MOUNTING POINT WILL USE THE 5/16" WASHER AND NUT,
WHILE THE OUTER MOUNTING POINT WILL USE THE DAMPER ROD FOR THE 5/16X2" SCREW. IT IS RECOMMENDED TO USE
THREADLOCKING COMPOUND ON THE 5/16X2" SCREW THAT THREADS INTO THE DAMPER ROD. TORQUE BOTH THE 5/16" NUT
AND DAMPER ROD TO 17 FT-LBS
INSTALL THE EYELET END OF THE DAMPER TO THE DAMPER ROD USING 1X E-CLIP. THE DAMPER COMES WITH A PREINSTALLED
CLIP ON THE CLEVIS END SIDE. REMOVE CLIP, SLIDE CLEVIS END OVER THE DRIVE TUBE CAM, AND REINSTALL CLIP.
Torque to 17 ft-lbs
KNAACK L.L.C.
CONFIDENTIAL, PRINTED
COPIES ARE NOT TO BE
REMOVED FROM SITE
WITHOUT WRITTEN CONSENT.
THIRD ANGLE PROTECION
FORMAT
SW
PAGE NUMBER
SCALE:
DATE:
DRAWN BY:
PART NAME:
MATERIAL:
TOLERANCES=
(EXCEPT AS NOTED)
ANGULAR
±1°
LINEAR
±.031
=CONTROL DIMENSION
1:24
2291-3-01 INSTALL 1
PAGE OF
194
PART NUMBER: REV.
REV.
PART NUMBER:
CLIP
DRIVE TUBE CAM
DAMPER
CLEVIS END