background image

(3) 3/8” - 16 x 1-1/2” 

hex head screws

(3) 3/8” - 16 

Hex nuts

(3) 3/8” 

Washers

(3) 3/8” 

Washers

(3) 3/8” Lock 

washers 

Coupler halves

Set screws

Set screws

Coupler halves

Coupler 

assembly

(3) 3/8” - 16 x 1-3/4” 

hex head screws and 

(3) 3/8” - 16 Hex nuts

Stationary 

spring cone

Torsion 

spring

(2) 3/8”-16 x 1-1/2” 

Hex head bolts and 

(2) 3/8”-16 Hex nuts

Torsion 

spring

Center bracket

Center 

bracket

Attaching Counterbalance Lift Cables

 

20

 

NOTE:

 Always assemble the left hand cable and cable drum first to help maintain equal cable 

tension on both sides of the door.
Starting on the left hand slide the red cable drum onto the torsion shaft / torsion keyed 

shaft(s). Hook the counterbalance lift cable into the left hand cable drum and thread the 

counterbalance lift cable up and around the front side of the cable drum. Slide the left hand 

cable drum up against the left hand end bearing bracket.

NOTE:

 If you have torsion keyed shaft(s), insert (1) key into the slot of both the cable drum 

and the slot in the torsion keyed shaft, as shown.
Counterbalance lift cable should terminate at the 3 o’clock position. Tighten the set screws in 

the drum to 14-15 ft-lbs of torque (once set screws contact the torsion shaft, tighten screws 

an additional 1/2 turn for solid shaft and one full turn for tubular shaft). Rotate the left hand 

drum and torsion shaft until counterbalance lift cable is taut. Attach locking pliers to the 

torsion shaft and brace locking pliers up against jamb to keep counterbalance lift cable taut. 

Repeat for right hand side using the right hand side the black cable drum.

IMPORTANT: 

VERIFY THAT THERE ARE NO OBSTRUCTIONS IN THE TRAVEL PATH OF THE 

DOOR SECTIONS OR COUNTERBALANCE LIFT CABLES.

IMPORTANT: 

INSPECT EACH COUNTERBALANCE LIFT CABLE MAKING SURE IT IS SEATED 

PROPERLY ONTO THE CABLE DRUM AND THAT BOTH COUNTERBALANCE LIFT CABLES HAVE 

EQUAL TENSION.

CHECK COUNTERBALANCE LIFT CABLES FOR EQUAL TENSION:

1. Attach locking pliers to track above top roller.
2. Grasp cable at approximate mid-door height location.
3. Draw cable toward you about 1/2” to 1” and release, noting the response of the cable.
4. Repeat above steps for other cable.
5. Adjust cable tension as needed until right and left cables both respond the same. 

Once the counterbalance cables are set and if applicable tighten the coupler assembly 

together by tightening the (3) 3/8” - 16 nylon hex lock nuts to secure the coupler halves 

together.

Torsion 

shaft

Left hand end 

bearing bracket

Counterbalance 

lift cable hooked 

in cable drum

Red cable drum 

(left hand side)

Locking 

pliers

Tighten set 

screws to 

14-15 ft. lbs. 

of torque

Torsion 

shaft

Jamb

Counterbalance 

lift cable

Torsion 

shaft

Counterbalance 

lift cable taut

NOTE:

 Repeat the same process for the 

right hand side using the right hand side 

the black cable drum.

Left hand end 

bearing bracket

Torsion 

keyed 

shaft

Torsion spring

Key

Red cable drum

(left hand side)

Set collar (if applicable)

Counterbalance lift cable

Tighten set screws to 

14-15 ft. lbs. of torque

Set Collars

 

21

 

NOTE:

 If your door did not come with set collars, then skip this step.

Slide each of the set collars up against the inside surface of the end bearing brackets, with 

the set screw facing directly away from the header. Tighten the set screw in each of the set 

collars to the torsion shaft to 14-15 ft. lbs. of torque (once set screw contacts the shaft, 

tighten set screw one full turn).

IMPORTANT: 

PRIOR TO TIGHTENING THE SET SCREWS IN THE SET COLLARS, AVOID PLAC-

ING THE SET SCREWS IN THE KEYWAYS OF TORSION KEYED SHAFT(S).

Set 

collar

End bearing 

bracket

Torsion 

keyed shaft

End 

bearing 

bracket

Set collar

Set 

screw

Counterbalance 

lift cable

Right 

hand 

cable 

drum

Chalking Torsion Spring(s)

 

22

 

NOTE:

 If your springs have stenciling, then skip this step.

Draw a chalk line horizontally along the center of the torsion spring coil(s). As the torsion 

spring is wound, the chalk line will create a spiral. This spiral can be used to count and 

determine the number of turns that are applied on the torsion spring.

Draw horizontal chalk line prior to 

winding

Spirals created after winding

Torsion spring 

coils

Securing Door for Spring Winding

 

23

 

With the door in the fully closed position, place locking pliers onto both vertical tracks just 

above the third track roller. This is to prevent the garage door from rising while winding 

springs.

NOTE:

 Check the following before attempting to wind torsion spring(s):

a. Counterbalance lift cables are secured at bottom corner brackets.
b. Counterbalance lift cables are routed unobstructed to cable drums.

11

Содержание 8700

Страница 1: ...alton a division of Overhead Door Corporation Model 8700 T O R S I O N QUICK START GUIDE RESIDENTIAL AND LIGHT COMMERCIAL FRONT MOUNT LOW HEADROOM OUTSIDE HOOKUP DEFINITION OF LIGHT COMMERCIAL 1 Door...

Страница 2: ...It is recommended that 5 16 lag screws are pilot drilled using a 3 16 drill bit prior to fastening CAUTION IF ANY PART OF THE DOOR IS TO BE INSTALLED ONTO PRESERVATIVE TREATED WOOD PTFE COATED OR STAI...

Страница 3: ...weatherstrip with equally spaced nails Repeat for other side This will keep the bottom sec tion from falling out of the opening during installation Equally space nails approximately 12 to 18 apart 3...

Страница 4: ...earing Brackets As Required J4 Left Hand and Right Hand Cable Drums J5 Center Bracket As Required J6 Center Bracket Bushing As Required J7 Center Bearing Bracket As Required J8 Torsion Shaft Torsion K...

Страница 5: ...you don t have track roller carriers then skip this step Refer to Package Contents Breakdown Of Parts to determine if you have track roller carriers Starting on left hand side of the bottom section a...

Страница 6: ...n Enlarge the holes from outside the door to 1 2 diameter through the section Assemble the outside and inside lift handles to the section using 2 1 4 20 x 2 1 2 carriage bolts and 2 1 4 20 hex nuts an...

Страница 7: ...lace the bottom half inside the top half and flush against the inside surface of the top section Adjust both the top and bottom halves out as far apart as possible on the section surface Secure the dr...

Страница 8: ...ther side 3 8 16 Hex nut 3 8 16 x 3 4 Truss head bolt Upper slot 5 16 x 1 5 8 Lag screws Left end bearing bracket Horizontal track NOTE Repeat the same process for the right hand side Attaching Center...

Страница 9: ...he door lay the torsion shaft on the floor Lay the torsion spring with the red winding cone at the right end of the torsion shaft Lay the torsion spring with the black winding cone at the left end of...

Страница 10: ...er bracket Repeat the same process for the right hand torsion spring assembly Position both torsion keyed shafts so that equal amounts of the shafts extend from each end bearing brackets Torsion keyed...

Страница 11: ...til right and left cables both respond the same Once the counterbalance cables are set and if applicable tighten the coupler assembly together by tightening the 3 3 8 16 nylon hex lock nuts to secure...

Страница 12: ...door systems technician using proper tools and instructions DO NOT remove cover or paint over this tag Prod uct user should inspect this tag periodically for legibility and should order a replacement...

Страница 13: ...ack above third track roller Place locking pliers on torsion shaft as shown in D5 Insert a winding rod into the winding cone Push downward on the winding rod slightly while carefully loosening the set...

Страница 14: ...e top as less streaking will result Immediately following all washing operations thoroughly rinse the surface area with fresh water from a garden hose This cleaning and maintenance information is sugg...

Страница 15: ...oor is operated manually The adjacent bottom corner bracket and all cable retention features including milford pins cotter pins clevis pins are under HIGH SPRING TENSION Adjustments and repairs must o...

Страница 16: ...d object or exposure to toxic or abrasive environments including toxic chemicals or fumes and any fading or color change which may not be uniform due to unequal exposure of the curtains to sunlight or...

Страница 17: ......

Страница 18: ...rvice representative They will be happy to handle any questions that you may have Thank you for your purchase PLEASE DO NOT RETURN THIS PRODUCT TO THE STORE After installation is complete leave this I...

Отзывы: