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1.  Mark centerline location

 

of door opening width

 on dock floor.  Take ½ of the truck shelter or wiper seal 

head frame width and mark this distance on either side of door centerline. 

 

NOTE:

  This will determine position of outside edges of foam side members. 

 

Serco S-420 Rigid Dock Shelters with the integrated S-900DD® Rain Seal System are custom built for each 
application.  Installation procedures are the same for all S-420/ S-900DD Dock Shelters regardless of size.  
Installation requires two people and a forklift truck or similar device to lift and position the shelter components. 
Lifting equipment to be determined by installer. 

 
 
 
 

Improper installation of anchoring devices or installation into aged or unsound concrete or other faulty or 
inadequate building wall construction could result in serious injury or death, as well as premature product 
wear, product failure or property damage. 

 

Inadequate lifting equipment or unsafe lifting practices can cause a load to fall, tip or swing unexpectedly.  
Make sure lifting devices are in good condition and have a rated capacity of at least 500 lbs. at the lifting angle  
being used.  Never allow anyone to stand on or near the dock shelter component when it is lifted or placed.  
Failure to follow this warning could result in serious personal injury or death to bystanders if component 
unexpectedly falls, tips or swings.  If you have any questions contact your supervisor or your local Serco 
distributor for assistance.  

 

Assembly of components should be performed in such a way so as to maintain cleanliness of equipment before 
final installation. Lifting equipment to be determined by installer (man lift and forklift or boom lift typical
). Wear 
safety glasses, gloves, hard hats, safety shoes and all necessary protective clothing.
 

                            

 

WARNING

   

MANDATORY INSTALLATION NOTE: 

 

To insure proper functioning of the S-900DD DryDock rain seal system, this rigid frame dock shelter must 
be applied so that top of shelter is in a range of from 14’-10” to 15’-2 off grade.  Installation of the top of 
the shelter at less than 14’-10” off grade may result in damage to the DryDock.  Installation of the top of 
the shelter at greater than 15’-2” of grade will reduce or eliminate the DryDock’s rain sealing 
effectiveness.  Correctness of product sizing for various applications must be established at the time of 
equipment order. 

 

SERCO S-420 RIGID FRAME DOCK SHELTER W/ INTEGRATED 

S-900DD DRYDOCK RAIN SEAL SYSTEM 

 

2.  Mount steel supports

.  Outside edge of steel support protector should be placed at mark on dock wall.  

Top flat surface of steel support should be mounted level with dock floor or at the top of raised dock 
bumpers.  Use supports as either right or left.  

 

3.  Mount side frames to wall

.  Side frame is positioned on top of flat portion of steel support protector.  

The outside edge of the side frame should be flush with outside edge of steel support protectors.  Be sure 
frames are plumb from top to bottom.  Three (3) anchors are recommended for each side frame. Unscrew 
and remove cross banding on side frames. 

 

Summary of Contents for S-420

Page 1: ...O 4F 420 DD INT 9 16 PART NUMBER T31645 Do not install this product unless you read and understand the Warnings and Installation Instructions contained in this manual Failure to do so could result in...

Page 2: ...or your local Serco distributor for assistance Assembly of components should be performed in such a way so as to maintain cleanliness of equipment before final installation Lifting equipment to be de...

Page 3: ...rovided through pre punched hole in top of steel support If pre punched holes don t align due to dock offset drill hole in side frame as required 5 Assemble side curtains to side frames Position side...

Page 4: ...ition mounting angles as shown with long leg of angle against ends of head frame Fasten 10 16 x TEK screws through holes in long leg of head frame bracket into side of head frame These screws will be...

Page 5: ...ce line NOTE Clamp a temporary 1 to 2 spacer by others between back of foam wiper and front of top plate This provides the foam wiper with a forward bias after attachment Screw through galvanized stee...

Page 6: ...een fiberglass and steel frame and re install TEK screws Fasten side cover to ends of head frame through head curtain mounting angle holes in two locations on back edge and two locations on front edge...

Page 7: ...the outside edges Caulk between truck shelter and wiper seal head frames and across front of wiper seal head frame behind stop plate A silicone caulk supplied by others is recommended IMPORTANT INSTA...

Page 8: ...roduct AND IS IN LIEU OF ALL OTHER GUARANTEES AND WARRANTIES EXPRESS OR IMPLIED This warranty does not cover any failure caused by improper installation or application abuse or negligence Parts requir...

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