TC820/TC820LTY Auto Door Option

Before starting the Auto Door installation you need to verify the door is aligned and moving as smooth as possible. Start by checking the force required to open the door (break away torque) and move to the full open position (rolling torque). Check the force from full open to full close as well.

To measure the force to open and close the door we use a Fish Scale attached to the door.

The break away force to open the door (force to open the door out of the lock) should be 10-15 lbs, and the rolling torque (force from outside the door lock to full open) should be 3-10 lbs of force.

The break away force to close the door (force from full open) should be 10 to 15 lbs of force and the force to full close into the door lock should be 3 -10 lbs of force.

If the force to move the door is greater than the above values you need to realign the door to reduce the force required.

Start by loosening the door wipers on the front of the door and the window. Loosen the wiper mounting screws and move the wipers away from the door to where they make a very light to no contact with the door.

Next remove the brush and loosen the wipers on the part catcher, and then loosen the wiper along the bottom of the door and move it away from the door.

Then loosen the wipers along the top of the door.

Finally remove this lower door seal and cut the sheet metal retainer plate and seal 0.0750" from the center of the slot as shown in photo 3. This will help prevent the seal from causing excessive drag when the door is being opened and closed.

Now with all of the wipers making little to no contact with the door, the door should move freely.

To check the door alignment, verify there is a gap between the bottom of the door and the lower sheet metal and that the gap is even across the bottom of the door. The steel track that the door rides on can be raised or lowered to adjust the height of the door off of the lower sheet metal.

Next check the top of the door to the top sheet metal for a gap that is even across the door.

To adjust, open the door all the way and remove the black rubber plugs on the top sheet metal to access the screws for adjusting the upper door rollers. Loosen the rollers and adjust the door in or out to get an even gap and then tighten the rollers.

To start installing the Auto Door you need to drill the holes to mount the brackets for the Motor, the Yoke and the cable routing.

To drill the cable routing holes install the jig SWI-TOOL-085 as shown in image 1. Drill the holes for the Home Switch and Motor cables into the electrical cabinet and cable tie holders. Photo 2 Detail F shows the center hole (28mm) into the cabinet for the cables. The 2 outer holes are the M5 threaded holes for the cable tie holders.

To install the Home Switch Actuator and Belt Clamp Bracket, install SWI-TOOL-083 onto the door and drill the 3 holes through both the upper and lower sheet metal of the door. Then from the bottom side of the door open the holes in the bottom sheet metal to .500".

To install the Yoke and Motor you need to drill the holes to mount the brackets for the Motor and the Yoke.

To drill the holes for the Yoke and Motor Mounting Brackets remove the top cable covers and circled button head screws as shown in photo 1.

Then install jig SW-TOOL-084 and drill the holes for the model machine you are working on. The 4 drill bushings not marked are used on both the TC820 and TC820LTY.

Once all of the holes have been drilled install the Plate-Auto Door-Left (36221) to the top machine sheet metal. Use 2 of the 3 nut plates to attach the plate to the top of the cabinet. See Image 1

Next install the Plate-Auto Door-Right (63222) to the top machine sheet metal. Use the 3rd nut plate to attach motor mounting plate to the top of the cabinet. See Image 1

After both sub plates are installed Install the Yoke-Idler Pulley-Assembly-TC820 (36147-1) to the left auto door plate. See Image 1

Attach the Motor to the Motor Mounting Bracket and then attach the bracket and motor to the right auto door plate as shown in Image 2.

Finally install the Bracket-Belt-Clamp (36218) and Spacer-Bracket-Belt-Clamp (36219) to the door as shown in Image 2.