Remove the used Rubber Belt (RB) from the machine.
Remove and inspect all Cylinders and Bearings, except for the Steam Cylinder. Inspect the face of the Cylinders, including the Stop Rolls, for any burrs, nicks, rough and/or rust spots, etc. Any suspect area should be repaired or replaced to prevent premature damage to the new RB.
If a Clip Expander is used, move it as far back from the RB machine as possible.
Be sure the floor at the entrance and exit end, as well as, under the RB machine is clean. Place cardboard, or some other suitable material to protect the RB, in front, under and behind the machine. NOTE: If a Clip Expander is used, it is a good idea to also cover the tracks.
Move the new RB, while still in the container, as close as possible to the RB machine.
Carefully remove the containers Top and Inspection Panel by removing the six top bolts and two inspection panel bolts. The RB is now accessible and can be lifted from the container by forklift or hoist.
NOTE: Be sure to cover the forks or any other part coming in contact with the RB before proceeding to pick up the RB. This will protect the inner surface of the RB from damage.
Carefully place the RB on the floor directly in front of the RB machine.
NOTE: Pay attention to the directional arrow on the belt’s edge indicating which direction the RB should turn once installed. (RUN THIS WAY →)
NOTE: Generally the Entrance end of the machine provides more free space than the exit end. If, however, this is not the case in your plant, you may elect to place the RB at the exit end instead.
Assuming the RB has been positioned at the entrance end, go to the back of the RB machine and, by means of a hoist and/or slings, pull the RB under the Steam Cylinder. The goal is to center the RB with the Steam Cylinder, side to side, as well as, front to back.
IMPORTANT: Wrap all cylinder journals with fabric to prevent damage to the RB. Apply Talcum powder (Talc) to the inside of the RB.
NOTE: Both of these steps help prevent damage during the placement of the cylinders through the RB.
Place the Idler Roll (bottom cylinder) through the RB and fasten.
Place the Tension Roll through the RB, but do not lift into position at this point.
Move the RB towards the front of the machine. Go to the front of the machine and place the inside Water Removal Roll into position and fasten.
Place the Compression Roll through the RB and lift (usually by hoist) into position and fasten.
Return to the exit end of the RB machine. Attach slings to the Tension Roll journals and lift into position and fasten.
NOTE: Be sure to fasten this cylinder in the bottom position. This will make the installation easier and insure minimum tension on the RB.
Place the outside Water Removal Roll into position and fasten.
VERY IMPORTANT: Install all Water lines. Make absolutely sure they are spraying water in the correct direction and that the spray both reaches and extends across the entire width of the RB.
NOTE: The Felt Dr. Blade, located near the Tension Roll, should be positioned so that a pool of water forms across the entire belt width. If needed, replace with a new Felt Dr. Blade.
Install the two Stop Rolls on either side of the RB. These rolls should be set perpendicular to the belt’s edge. They should also have a clearance of 25 mm from the belt’s edge on both sides of the machine and must be free turning at all times. Again, please check to insure that no burrs or nicks are present, as they will cut the belt’s edge.
NOTE: The stop Rolls should not extend beyond the width of the Steam Cylinder. If this happens, the edge of the Steam Cylinder could damage the RB.
If used, reinstall the Nip Guard. NOTE: This is a safety feature to help prevent a person’s hand from being caught in the nip area where the Compression Roll meets the Steam Cylinder.
- Check the entire machine and the surrounding area to confirm there is nothing inside the RB or on its surface that could cause damage during start up.
Clean the work area and then wash the RB with Soap and water (see note below). Once clean-up and washing is complete, you are ready to process fabric.
NOTE: Throughout the installation process it is advisable that Dunline Belt Wash (or another soap with a neutral pH and without chlorine, e.g., Borax) and water is the recommended cleaner. In addition, however, Xylene may be used to remove stubborn grease stains.
IMPORTANT NOTE: DUNLINE® Rubber Belts are ground before leaving the plant with a sophisticated grinder that uses the equivalent of 80x grinding cloth (U.S.A. standards). The result is typically a surface that does not require further buffing before use. The exception, however, may be very lightweight or delicate fabric styles. In this case, it may be beneficial to grind with 100x or 120x, use plenty of Talcum powder, and minimal pressure of the grinding roll against the RB for twenty minutes. This will produce a nicely polished surface suitable for processing delicate fabrics.
For advice on how to grind your rubber belt please click here.
Should you have any questions concerning these instructions or have difficulty installing the rubber belt, please contact us via beltinfo@dunline.com, Fax 843-374-3104 or PH 843-374-3102