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IF THE BOTTOM SECTION WAS SHIMMED TO LEVEL IT, THE VERTICAL TRACK ON THE 

SHIMMED SIDE MUST BE RAISED THE HEIGHT OF THE SHIM.

NOTE:

 Make sure the counterbalance lift cable is located between the track rollers and the 

door jamb.
Starting on the left hand side of the bottom section, remove the nail. Position the left hand 

vertical track assembly over the track rollers of the bottom section and install, as shown. Drill 

3/16” pilot holes into the door jamb for the lag screws.

LOOSELY FASTEN WALL ANGLES TO ONE OF THE FOLLOWING SCENARIOS LISTED 

BELOW:

Wood jambs, using 5/16” x 1-5/8” lag screws. Drill 3/16” pilot holes into the wood 

jamb for the lag screws.
Steel jambs, using 5/16” x 1” self drilling screws.
Pre-cast concrete, using 3/8” x 3” sleeve anchor (not supplied).

NOTE:

 Products being installed to pre-cast or block must use a 3/8” x 3” sleeve anchor 

to attach the wall angle to the building, as shown. Use the slots in the wall angle as a drill 

template and drill a 3/8” hole (3-1/2” deep) and secure to anchor.

WARNING 

DO NOT USE SLEEVE ANCHORS ON HOLLOW BLOCK.

FOR 2” TRACK:

 Tighten fasteners, securing the bottom jamb bracket in the vertical track 

assemblies / bottom slot in the wall angle to jamb, maintain 3/8” to 5/8” spacing, between 

the bottom section and vertical track.

FOR 3” TRACK:

 Tighten fasteners, securing the bottom jamb bracket in the vertical track 

assemblies / bottom slot in the wall angle to jamb, maintain 1/2” to 3/4” spacing, between 

the bottom section and vertical track.
Allow proper clearance as shown and use the values as illustrated in the Side Room Require-

ments (Minimum Distance Required), located in the pre-installation section of this manual.
Hang counterbalance lift cable over flag angle / angle mount. Repeat same process for other 

side.

Stacking Sections

 

15

 

NOTE:

 Refer to door section identification, located in the pre-installation section of this 

manual to determine what size sections you need to use as your lock (second) section, inter-

mediate (third) section, intermediate (fourth) section, intermediate (fifth) section, intermediate 

(sixth) section, intermediate (seventh) section, intermediate (eighth) section and top section. 

Measure your sections to make sure they are the correct height as indicated on the chart.

NOTE:

 Make sure graduated end and center hinges are flipped down, when stacking another 

section on top.
Place appropriate stem track rollers into graduated end hinges of remaining sections.

NOTE:

 Larger doors will use long stem track rollers with double graduated end hinges.

With assistance, lift second section and guide the track rollers into the vertical tracks. Lower 

section until it is seated against bottom section.

NOTE:

 Make sure graduated end and center hinges are flipped down, when stacking another 

section on top.
With assistance, lift second section and guide the track rollers into the vertical tracks. Lower 

section until it is seated against bottom section. Flip hinges up. Fasten center hinge(s) first; 

then end hinges last using 1/4” - 14 x 7/8” self-drilling screws. Repeat same process for 

other sections, except top section.

IMPORTANT: 

PUSH & HOLD THE HINGE LEAFS SECURELY AGAINST THE SECTIONS WHILE 

SECURING WITH 1/4” - 14 X 7/8” SELF-TAPPING SCREWS. THERE SHOULD BE NO GAP 

BETWEEN THE HINGE LEAFS AND THE SECTIONS.

NOTE:

 Install lock at this time (sold separately). See optional installation step, Side Lock.

Stacking Top Section

 

16

 

Place the top section in the opening. Install a nail to prevent the top section from falling back-

wards. Now, flip up the hinge leaves, hold tight against section, and fasten center hinges first 

and end hinges last (refer to step, Stacking Sections). Vertical track alignment is critical.

POSITION FLAG ANGLE OR ANGLE MOUNT FROM THE EDGE OF THE DOOR:
FOR 2” TRACK APPLICATIONS:

 1-11/16” (43 mm) to 1-3/4” (44 mm) for smooth, safe 

door operation.

FOR 3” TRACK APPLICATIONS:

 2-3/16” (56 mm) to 2-1/4” (57 mm) for smooth, safe door 

operation
Tighten the bottom lag screw. Flag angles / Angle mount must be parallel to the door sec-

tions. Repeat for other side.

FOR 2” TRACK APPLICATIONS:

 Door width plus 3-3/8” (86mm) to 3-1/2” (89 mm) for 

smooth, safe door operation.

FOR 3” TRACK APPLICATIONS:

 Door width plus 4-7/8” (124mm) to 5” (127 mm) for 

smooth, safe door operation.
Complete the vertical track installation by securing the fasteners to the jamb. Push the verti-

cal track against the track rollers so that the track rollers are touching the deepest part of the 

curved side of the track; tighten all the track bolts and nuts. Repeat for other side.

Attaching Drawbar Operator Bracket

 

17

 

NOTE:

 If you don’t have a drawbar operator bracket, then skip this step. Refer to Illustrations 

shown below, Package Contents or Breakdown of Parts, to determine which drawbar operator 

bracket you have.

NOTE:

 If you’re installing a drawbar operator, the drawbar operator bracket must be mounted 

and secured prior to installing top section.

IMPORTANT: 

WHEN CONNECTING A TROLLEY TYPE GARAGE DOOR OPENER TO THIS DOOR, 

A WAYNE DALTON OPERATOR / TROLLEY BRACKET MUST BE SECURELY ATTACHED TO 

THE TOP SECTION OF THE DOOR IF ONE HAS BEEN PROVIDED, ALONG WITH ANY STRUTS 

PROVIDED WITH THE DOOR (IF A WAYNE DALTON OPERATOR / TROLLEY BRACKET WAS NOT 

PROVIDED WITH YOUR DOOR, THAN USE THE ONE PROVIDED BY YOUR OPERATOR MANU-

FACTURER). THE INSTALLATION OF THE OPERATOR MUST BE ACCORDING TO MANUFAC-

TURER’S INSTRUCTIONS AND FORCE SETTINGS MUST BE ADJUSTED PROPERLY.

NOTE:

 For retro fit applications, the drawbar operator bracket must be aligned with an exist-

ing operator.

NOTE:

 Refer to illustrations to determine which drawbar operator bracket was supplied with 

your door.
Place the bottom half of drawbar operator bracket inside the top half of drawbar operator 

bracket and flush against the inside surface of the top section. Adjust both the top and bot-

tom halves out as far apart as possible on the section surface, as shown. Secure the bottom 

half drawbar operator bracket and the top half drawbar operator bracket together using (4) 

5/16” - 18 x 1/2” carriage bolts and (4) 5/16” - 18 flange hex nuts.

NOTE:

 Install the 5/16” - 18 x 1/2” carriage bolts and the 5/16” - 18 flange hex nuts as far 

apart as possible, prior to securing both top and bottom halves together.
Now, locate the center of the top section and align the center of the holes in the drawbar op-

erator bracket assembly with the top section center line. Align the drawbar operator bracket 

assembly vertically.
Slide the upper half of the drawbar operator bracket under the strut (if applicable), keeping 

the drawbar operator bracket aligned with the center line. Remove the strut’s screws, if nec-

essary and attach to the top section (through strut if necessary) using 1/4” - 20 x 7/8” self 

drilling screws. Attach the lower half of the drawbar operator bracket to the section surface 

using 1/4” - 20 x 7/8” self drilling screws.

NOTE:

 When attaching drawbar operator bracket to top section with strut, apply additional 

pressure to thread into the strut.

NOTE:

 Depending on your door width, it may be required that the rectangular drawbar 

operator bracket be mounted off center so the drawbar operator bracket mounts to the hinge 

points.
Now, locate the center of the top section and align the drawbar operator bracket assembly 

with the top section center line. Align the drawbar operator bracket assembly vertically and 

horizontally. Secure the drawbar operator bracket to the top section surface using 1/4” - 20 x 

7/8” self drilling screws, as shown. Next, if applicable and using 1/4” - 20 x 7/8” self drilling 

screws, secure the rectangular drawbar operator bracket to the Strut / C Channels, as shown.

Attaching Horizontal Tracks

 

18

 

NOTE:

 Depending on your door, you may have Fully Adjustable Flag Angles, Riveted Vertical 

Track Assemblies or you may have Angle Mount Vertical Track Assemblies. Refer to Package 

Contents / Breakdown of Parts, to determine which Flag Angles / Vertical Track Assemblies 

you have.

WARNING 

DO NOT RAISE DOOR UNTIL HORIZONTAL TRACKS ARE SECURED AT 

REAR, AS OUTLINED IN STEP, REAR BACK HANGS, OR DOOR COULD FALL 

FROM OVERHEAD POSITION CAUSING SEVERE OR FATAL INJURY.

IMPORTANT: 

PRIOR TO INSTALLING THE HORIZONTAL TRACKS, USE CABLES OR CHAINS TO 

TEMPORARILY SUSPEND THE REAR PORTION OF HORIZONTAL TRACKS.

WARNING 

DO NOT USE ROPES, SINCE EDGES OF HORIZONTAL TRACKS AND 

ANGLES ARE VERY SHARP.

IF YOU HAVE FLAG ANGLES:

 To install horizontal track, place the curved end over the top 

track roller of the top section. Align the bottom of the horizontal track with the top of the verti-

cal track. Tighten the horizontal track to the flag angle with (2) 1/4” - 20 x 9/16” track bolts 

and (2) 1/4” - 20 flange hex nuts.

IF YOU HAVE ANGLE MOUNT:

 To install horizontal track, place the curved end over the 

top track roller of the top section. Align the bottom of the horizontal track with the top of the 

vertical track. Tighten the horizontal track to the angle mount with (2) 1/4” - 20 x 9/16” track 

bolts and (2) 1/4” - 20 flange hex nuts.
Next level the horizontal track assembly and bolt the horizontal track angle to the first 

encountered slot in the flag angle / angle mount using (1) 3/8” - 16 x 3/4” truss head bolt 

6

Summary of Contents for ThermoMark 5255

Page 1: ...structions 7 Maintenance 14 Cleaning Your Garage Door 14 Painting Your Garage Door 14 Operation And Maintenance 14 Warranty 15 Wayne Dalton a division of Overhead Door Corporation Models ThermoMark 51...

Page 2: ...t information 18 For windloaded doors the wind performance is achieved via the entire door system and component substitution is not authorized without express permission by Wayne Dalton NOTE It is rec...

Page 3: ...eft Hand and Right Hand Torsion Springs As Required I9 Counterbalance Lift Cables J REAR BACK HANGS J1 Left and Right Hand Rear Back Hangs Assemblies J2 Left and Right Hand Rear Center Back Hang Assem...

Page 4: ...on the left hand side attach the left hand bottom corner bracket to the left corner of the bottom section mak ing sure it is seated to the edges of the end cap using 1 4 14 x 7 8 self drilling screws...

Page 5: ...p fixture base using 1 5 16 18 x 3 4 carriage bolt and 1 5 16 18 hex nut Starting on the left hand side align the lip of the top fixture base on top of the corner of the top section and even with the...

Page 6: ...ghten all the track bolts and nuts Repeat for other side Attaching Drawbar Operator Bracket 17 NOTE If you don t have a drawbar operator bracket then skip this step Refer to Illustrations shown below...

Page 7: ...anchors not supplied NOTE Products being installed to pre cast or block must use a 3 8 x 3 sleeve anchor to attach the end bearing brackets to the building as shown Use the slots in the end bearing b...

Page 8: ...IONS ARE NOT APPLICABLE FOR A SPAN GREATER THAN 84 Maximum Door Size 9 0 x 9 0 Maximum Door Weight 210 lb Cut perforated angle 1 5 8 x 2 3 8 x 11 GA to Dim Y Thru bolt top and bottom of angle to each...

Page 9: ...cone left hand side Right hand cable drum black Left hand cable drum red Center bearing Left wound black winding cone right hand side Left wound black winding cone right hand side Center bearing Cent...

Page 10: ...TAG S SUPPLIED MUST BE SECURELY ATTACHED TO THE STATIONARY SPRING CONE S IN PLAIN VIEW SHOULD A REPLACEMENT SPRING WARNING TAG BE REQUIRED CONTACT WAYNE DALTON FOR FREE REPLACEMENTS FOR SPRINGS UP TO...

Page 11: ...e middle of the two center bearing brackets loosen the 3 3 8 16 x 1 3 4 hex head screws and the 3 3 8 16 nylon hex lock nuts from the coupler assembly if applicable Rotate the left hand drum and torsi...

Page 12: ...ft tighten screws one full turn HIGH SPRING TENSION CAN CAUSE SERIOUS INJURY OR DEATH DO NOT adjust repair or remove springs or parts to which springs are connected such as steel brack ets cables wood...

Page 13: ...SE DOOR COULD FALL RESULTING IN SEVERE OR FATAL INJURY NOTE Doors heights over 8 0 or door widths over 11 0 require an additional set of rear center back hangs to be installed and located at the middl...

Page 14: ...use of detergents containing greater than 0 5 phosphate is not recommended for use in general cleaning of garage doors NOTE Be sure to clean behind weatherstrips on both sides and top of door CAUTION...

Page 15: ...art with the door in the fully closed position Lift the door to check its balance Adjust Extension spring s if door lifts by itself hard to pull down or if door is difficult to lift easy to pull down...

Page 16: ...to contact a customer service representative They will be happy to handle any questions that you may have Thank you for your purchase After installation is complete leave this Installation Instruction...

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