Instructions for Operation of the Scotchlite Interstate Squeeze Roll Applicator

Transcription

1 3 Instructions for Operation of the Scotchlite Interstate Squeeze Roll Applicator Using Pressure-Sensitive Adhesive-Coated 3M Scotchlite Reflective Sheeting Information Folder 1.4 March 1996 Replaces IF 1.4 dated August 1992 Health and Safety Information Read all health hazard, precautionary, and first aid statements found in the Material Safety Data Sheet, and/or product label of chemicals prior to handling or use. Follow the Instructions 3M recommends only the standard practice outlined in this Information Folder. Procedures and materials which do not literally conform to these instructions are excluded. See Terms and Conditions of Sale. Important: Read this Information Folder completely before operation and follow the instructions for proper results. The Scotchlite interstate squeeze roll applicator is designed for continuous machine application of Scotchlite sheetings with pressure sensitive adhesive to flat panels including extruded panels and panels fabricated with extruded ribs. General applicator specifications, alignment and maintenance details are found in Information Folder 1.3. Information Folder 1.4 describes specific procedures for applying Scotchlite reflective sheeting, with the Interstate Applicator. Reference the product bulletin for the series of sheeting being applied to determine which applications require heat directed at the sheeting and which applications can be made at room temperature. The pressure sensitive adhesives provide an excellent bond to most clean, smooth, non-porous weather-resistant surfaces. Detailed information on the selection and preparation of application surfaces may be found in Information Folder 1.7. The Interstate applicator is equipped with a 3M Heater CAL-101 (See Figure 1, ). The applicator can be operated with the heater on or off and either directed at the sheeting or the substrates. Labor requirements will vary with the type of substrate and worker experience. Machine operation, loading of substrates, trimming and storage of finished panels are required tasks. For most cases one or two workers can set up the machine. An extra crew of one or two (for a minimum of three) may be assembled to provide uninterrupted application. Preparation CAUTION: Keep hands, clothing, hair, etc. clear of rubber rollers. Item 3 Item 4 Figure 1: Heater control arm

2 A. Operational Switches Operation of the drive motor may be interrupted by any one of six switches. Normal stop and start must be controlled by the heater arm (see Figure 1) when the heater is on. The switches should be positioned as follows: 1. The heater arm should rest against the stop pin in a horizontal position when the applicator is running (see Figure 3C) and should be in a near vertical position when the applicator is stopped (see Figure 3A). This is the primary control of the applicator. 2. The heater safety guard supports (see Figure 1) should be in their brackets to depress the microswitch, placing the switch in the ON position. 3. The chain access door must be closed so the door switch (see Figure 2, Item 3) is in the ON position. 4. The bottom roller release lever (see Figure 4, ) should be moved to the raised position, (Switch On - Figure 4, Item 3). 5. The directional switch (see Figure 6, Item 3) should be in its Forward position. 6. The foot switch (see Figure 5) must be in its On position. It Should Not Be Primary Control Of The Applicator When The Heater Is On. The foot switch may be placed out of the way after it is turned On. Figure 2: Drive Chain Item 3 A B C Heater Arm Microswitch Heater Microswitch: Open Closed Closed Interstate: Stopped Running Running Heater Position: Backward Warming Blanks Warming Sheeting Heater Switch Figure 4, Item 4: Off On On Figure 3: Relative positions of the heater arm and the heater. 2

3 Figure 4: Bottom roller release lever Item 3 Item 4 Narrow sheeting rolls will require lower wind-up tension than wide rolls. C. Top Roller Pressure The following procedure must be repeated after every change of substrate thickness. 1. Turn hand wheel (see Figure 9, ) to raise top roller. 2. Place sign panel between rollers. Lower top roller until roller rests firmly on panel and thrust bearing may be spun freely (see Figure 6, ). A 1/16 inch to 1/8 inch (0.16 cm to 0.32 cm) gap should exist between the thrust bearing and lock nuts. A larger gap (more pressure) may be necessary when the substrate is not flat. Item 9 Item 8 Figure 5: Foot switch Item 3 Item 5 (inside adjustment knob shaft) Item 7 Figure 7: Stock and liner mandrel 0 Item 6 (inside adjustment knob shaft) Item 4 Item 4 Item 3 Figure 6: Top roller lock nuts B. Initial Clutch Adjustment The clutch controls the liner wind-up tension. Prepare for operation by setting the clutch as follows: Firmly grasp the liner mandrel (see Figure 7, ) with one hand. The mandrel should rotate with slight resistance. If adjustment is necessary, loosen set screw (see Figure 8, Item 4) with Allen wrench. Adjust hexagonal nut to achieve slight resistance and retighten set screw. Set screw may have to be relocated to a different hole on the nut so it tightens against a flat area of the hub. Additional tightening is necessary if liner does not wind up. 3 Figure 8: Clutch adjustment Item 3

4 Figure 9: Hand wheel adjustment D. Loading 1. Remove empty stock mandrel (see Figure 10, ) and insert through core of sheeting stock roll. Sheeting should unwind in the direction shown in Figure 12. If liner leader has been provided to facilitate loading, do not remove this leader. 2. Wedge tapered collars into sheeting stock roll core with a wooden or plastic mallet. Aim collar set screws in the same direction. Do not strike sheeting or wedge collars so tightly as to damage sheeting. If sheeting becomes telescoped, carefully square roll ends. 3. Place mandrel and sheeting onto machine (see Figure 10). For convenience and safety, the roll should be lifted by two operators or by a hook-lift and a chain-hoist. 4. Center the sheeting stock roll within the machine frame and lock in place with the tapered collar set screws. Before the stock roll and liner roll are locked to their mandrels, the lateral adjustment screws (see Figure 7, Items 3 & 4) should be in the middle position of travel. 7. Set the brake (see Figure 7, Item 7) to prevent stock roll rotation. Pull liner leader squarely and evenly and tape to liner roll core. Do not allow more than 100 yards of liner to be rewound on a core. Threaded sheeting and liner under tension must appear flat with no diagonal wrinkles. 8. Start the units drive motor by rotating the heater arm to position shown in Figure 3B. Release the brake to allow the sheeting to reach the position shown in Figure 11. Tighten the brake to stop stock roll rotation. Stop the drive motor by returning the heater arm to position shown in Figure 3A. E. Edge Guide Placement Nominal sheeting widths allow for approximately an 1/8 inch (0.32 cm) sheeting overlap which is trimmed after application. Edge guides are positioned as follows for proper panel alignment: 1. Drape sheeting evenly over the top roller as in Figure 12. Center a square panel against sheeting. Position the edge guides close to the panel with an allowance for possible variation in panel width. Lock guides in place with hand knobs. Replace sheeting on liner. 2. Check edge guide alignment by passing panels through the machine. The brake must be set to prevent stock-roll rotation and the sheeting must not be allowed to contact panels. 3M Filament Tape #898 has been used and found satisfactory. Item 3 Figure 10: Stock and liner mandrels (from IF 21). Figure 11: Proper thread-up 5. Place an empty roll core on the liner mandrel in alignment with the stock roll. 6. The liner stripper roller (see Figure 10, Item 3) must be in its up position for High Intensity Grade sheeting applications. To raise the roller, depress both stripper roller levers (see Figure 1, ). Pass liner leader under stripper roller to liner core (see Figure 10, ). 4

5 For room temperature applications the speed can be adjusted as desired depending upon manpower and substrate. For applications requiring heat on the sheeting, the applicator speed must be adjusted to obtain the recommended temperature. This will vary with the type of substrate, the temperature of the substrate and the sheeting used. To determine the correct speed and temperature for these applications, place a RAA-28 Telatemp temperature recorder strip firmly onto the sheeting stock roll as it begins to unwind. (See Figure 14). Figure 12: Proper thread-up Hold panels against one edge guide as they are fed into the nip. If panels do not travel in a straight line, or panels put pressure against guides, reposition edge guide ends that are farthest from rollers. This will keep panels centered under sheeting. Figure 14: Check the telatemp after it exits the nip rolls to determine the sheeting temperature reached. (See Figure 15). Figure 15: Reduce speed to increase temperature. Increase speed to reduce temperature. Figure 13: Leveling knob and speed crank F. Application Speed Temperature Check The applicator speed can be varied from 5.5 to 20 feet per minute by starting the motor and adjusting the variable speed dial (see Figure 13, ). Clockwise rotation increases speed. Note: The drive motor must be in operation when changes in speed are made. Numbers on the dial do not correspond to application speeds. 5

6 G. Bottom Roller Protection To prevent sheeting adhesion to the bottom roller, liner or slipsheet may be used as a conveyor (see page 7) or for bottom roller protection. Alternatively, paper liner from Engineer Grade Sheeting or SCW-82 slipsheet may be wrapped around the roller, glossy side out. Wrap in the opposite direction from normal bottom roller rotation. Tape in place with Scotch Tape #853 or #8401. The material should form a smooth, wrinkle-free cover. Reversal of roller direction may wrinkle or tear protective sheet from roller. Do Not Use Silicone Spray Or Release Agents To Protect Roller. The Interstate Squeeze Roller is now ready for application of Scotchlite reflective sheeting. Application Requiring Heat Directed at the Sheeting Reference the product bulletin for the series of sheeting being applied to determine which applications require heat directed at the sheeting and which can be at room temperature. WARNING: Keep hands, clothing, hair, etc., clear of rollers. The heater does not have to be Hot to cause injury. Under no circumstances should the heater element be touched, even when cold, unless the electric power is disconnected. Moisture can cause the heater elements to carry an electrical charge up to 220V. Applications must be made with a minimum of interruptions. Have appropriate manpower, and substrate quantities available for continuous application. A. Start Application 1. The rubber rollers must be prewarmed as described below to provide proper temperature conditions for application. The roller must also be rewarmed any time application is halted for more than 3 minutes. a. Reattach loose sheeting to the liner and tighten brake to prevent stock roll rotation (see Figure 15). This will protect sheeting from heater during warmup. b. Direct the heater away from the rollers (see Figure 3A). Turn the heater on at the machine (see Figure 4, Item 4). CAUTION: Do not use the heater if solvents or solvent vapors are present. Figure 16: Sheeting must be applied under minimum tension. c. All operational switches should be in the On position so that the drive motor will be started when the heater is turned towards the rollers (see Figure 3C). d. When heater elements are cherry red, turn heater toward rollers (heater arm as in Figure 3B). Preheat rotating rollers for 3-5 minutes or until rollers are hot to the back of your hand. CAUTION: Never allow the hot heater to be aimed at stationary rollers. If top roller pressure has been set for a thick substrate such that the rollers do not touch, the top roller will not rotate. In this case, lower the top roller with the handwheel (see Figure 6, ). Count the turns that are required for the rollers to touch. After the warm-up, return the top roller to its application position. Do Not Leave Applicator Unattended During The Warm-Up Period. 2. Use of a starter panel is recommended. The panel should be a minimum of 12 inches (30.5 cm) in length by the sheeting width. a. At the end of the warm-up period, direct the heater away from the rotating rollers (see Figure 3A) and return the top roller to its application position. b. With the motor drive On, reduce brake tension and allow sheeting to travel to the position shown in Figure 11. Set the brake to prevent further stock roll rotation and stop the motor drive. c. Fold sheeting down in front of the nip as shown in Figure 12. The sheeting should be stripped evenly from the liner and should lie flat against the top roller. d. Loosen the brake until the sheeting visibly loses tension at the area noted in Figure 12,. Insert the starter panel into the nip. 6

7 3. With a starter panel in the nip, turn the heater arm to its operating position. Tighten the brake slightly for the starter panel only, so that the sheeting flattens against the top roller. As soon as the sheeting is flat against the top roller, brake tension must be reduced. Adjust proper tension by reducing brake to create a small loop (Figure 17A) and tighten slightly until loop disappears. A small loop may occasionally reappear and then disappear. This is normal. Occasionally repeat proper tension setting procedure as the stock roll decreases to maintain proper tension. Figure 17B and 17C illustrate the appearance of the loop with high and low brake tension. Do not allow any sheeting to be applied at high tension. A large loop, shown in Figure 17B may cause sheeting to fold into hard wrinkles. 4. Consecutive panels should be fed approximately 1/4 inch apart. Avoid large gaps between panels or sheeting may stick to the bottom roller. For proper color matching of multipanel signs, see page Trim panel edges closely with a sharp utility knife. Trim cuts should be made down at a 45 angle to the edge of the panels as shown in Figure 18. Use care in trimming to avoid chipping edges. After trimming, always place panels on edge, face to face, and back to back. When ready to package or store the mounted signs, consult Information Folder 1.11 for packaging and storage recommendations. Figure 17A Sheeting Top Rubber Roller Bottom Rubber Roller Figure 17B Liner Too Loose Heater Accessory Sign Blank Too Tight Proper Tension Figure 17C Figure 17: Sheeting must be applied under proper tension. 7

8 Figure 18: Trim panel edges Room Temperature Applications Reference the product bulletin for the series of sheeting being applied to determine which applications require heat directed at the sheeting and which can be made at room temperature. Room temperature applications can be defined as lamination without heat directed at the sheeting. If the substrate temperature is 65 F or above, apply without using the cal-rod heater. If the substrate temperature is below 65 F, turn on the cal-rod heater and aim it at the substrate. (See Figure 3B). Adjust speed to obtain at least 65 F on the substrate. Do not aim the heater at the sheeting as in Figure 3C. WARNING: Keep hands, clothing, hair, etc., clear of rollers. The heater does not have to be Hot to cause injury. Under no circumstances shall the heater element be touched, even when cold, unless the electric power is disconnected. Moisture can cause the heater element to carry an electrical charge up to 220V. A. Start Application Use of a starter panel is recommended. The panel should be a minimum of 12 inches (30.5 cm) in length by the sheeting width. 1. Direct the heater away from the rollers as shown in Figure 3A. NOTE: The heater is not used to warm the rubber rollers or the sheeting. 2. Prepare for one of two conditions of application. All operational switches should be in the ON position so that the drive motor will be started when the heater arm is moved. (If the shop temperature is higher than 65 F (18 C) it is suggested that the sign blanks be used after they have been conditioned to the room temperature.) Room Temperature Blanks. a. Turn heater arm to position shown in Figure 3A. b. Fold sheeting down in front of the nip as shown in Figure 12. The sheeting should be stripped evenly from the liner and should lay flat against the top roller. c. Loosen the brake until the sheeting visibly loses tension at the area noted in Figure 12,. Insert the starter panel into the nip. d. Turn heater arm to position shown in Figure 3B, starting machine. (If the shop temperature is lower than 65 F (18 C) it is suggested that the sign blanks be warmed by running them under the heater (see Figure 3B) during application.) Pre-Heated Blanks a. Turn heater arm to position shown in Figure 3A. b. Turn ON the heater at the machine (see Figure 5, Item 4). Do Not use heater if solvents or solvent vapors are present. c. Fold sheeting down in front of the nip as shown in Figure 12. The sheeting should be stripped evenly from the liner and should lay flat against the top roller. d. Loosen the brake until the sheeting visibly loses tension at the area noted in Figure 12,. Insert the starter panel into the nip. e. When the heater element is cherry red, turn heater or arm to position shown in Figure 3B, starting machine. 3. Tighten the brake slightly for the starter panel only, so that the sheeting flattens against the top roller. As soon as the sheeting is flat against the top roller, brake tension must be reduced. Adjust proper tension by reducing brake to create a small loop (Figure 17A) and tighten slightly until loop disappears. A small loop may occasionally reappear and then disappear. This is normal. Occasionally repeat proper tension setting procedure as the stock roll decreases to maintain proper tension. 8

9 4. Figures 17B and 17C illustrate the appearance of the loop with high and low brake tension. Do not allow any sheeting to be applied with high tension. A large loop shown in Figure 17C may cause sheeting to fold in to hard wrinkles. 5. Consecutive panels should be fed approximately 1/4 inch apart. Avoid large gaps between panels or sheeting may stick to the bottom roller. For proper color matching of multipanel signs, see below. 6. Trim panel edges closely with a sharp utility knife. Trim cuts should be made down at a 45 angle to the edge of the panel. Use care in trimming to avoid chipping edges. After trimming, always place panels on edge, face to face and back to back. When ready to package or store the mounted signs, consult Information Folder 1.11 for packaging and storage recommendations. B. Color and Brightness Matching Whenever two or more pieces of Scotchlite sheeting are used together on a single sign or as a set, they must be matched to assure uniform daytime color and nighttime reflective appearance. Sheeting should also be matched for color and brightness when spliced. Vertical joints of sign panels and sheeting splices are preferred over horizontal. When sheeting splices must be horizontal, overlap top sheet over bottom sheet 1/4 inch. 1. To check matching, use a 100 watt bulb in a 7 matt reflector held at eye level and view the whole sign from a distance of at least 50 feet (15.2 m) by retro-reflected light. If nonuniformities in reflective appearance are visible, the sign is not properly matched. 2. Color and brightness matching can be accomplished with proper material selection, application care, panel identification, assembly and final inspection of the complete sign. a. Material Selection. Rolls of prematched Scotchlite reflective sheeting should be ordered. Pre-matched rolls are carefully selected, matched and marked with a matching symbol (U, V, W, X, Y, Z) and date. The symbol and date are stamped on the carton label and within the core. Example: July 28, 1995 Y. Use only sheeting from rolls having the same date and matching symbol on one sign. If a sign is to be made using a combination of 6- inch and 12-inch extrusions, or 30-inch and 48- inch panels, sheeting from two different width rolls may be used on one sign if both rolls have the same date and symbol. A different symbol or date should not be used in combination unless the whole sign is assembled and inspected visually by day and reflected light and found to be uniformly matched Figure 19: Notice that the matching edges are always swung to meet each other. Panels 1 and 2 are a matched set. Panels 1, 2, and 3 are matched, etc. Match as many panels from a roll as are required for the sign. b. Application Care. Reflective sheeting applied to panels from a roll should be matched as shown in Figure 19. c. Panel Identification. Panels for any one sign (see Figure 19) should be assembled and applied in consecutive order. Panels should be marked on the reverse side, as they are taken off the applicator. Then they can be reassembled in the same order with correct edges adjacent. d. Final Inspection. Assemble the complete set of panels required for one sign in order and inspect for uniform appearance by day and with light. If panel assembly has uniform appearance, final fabrication can proceed. C. Lateral Adjustment of Liner and Stock Rolls To maintain proper sheeting overlap on panels, stock roll position may be slowly adjusted during application by the lateral adjustment screws (see Figure 20, Items 1 and 2). If the adjustment is not performed slowly, hard wrinkles in the sheeting may be formed on the panels

10 Figure 20: Hand wheel adjustments Shut Down A. If applications are to be halted before the end of a sheeting roll, stop the applicator on a short scrap panel. B. Never Cut Sheeting Against The Top Roller. Loosen brake to form a loop and cut the sheeting as shown in Figure 21. C. If a roll is to be removed from the machine, rewind the sheeting onto the stock roll with extra liner. The extra liner will later serve as a starting leader. D. Do Not Allow Sheeting Or Liner To Touch Heater While It Is Hot. E. When application is finished, turn the heater off at the machine. F. Lower the bottom roller to prevent contact between the rollers which could cause flat spots. The liner stripper roller should remain in UP position. Extrusions - Extru-Sheet A. General 1. Standard aluminum extruded panels used for traffic control signs are manufactured in various widths with ribs on the back. Grooves are provided on the sides of sign panel extrusions to accommodate overlap sheeting that is rolled over the edges by the Edge Roller Assembly, RAA-3 (see Figure 22). 2. Extru-Sheet panels are manufactured in various widths by spot welding ribs to flat aluminum panels. Following application, the reflective sheeting is trimmed at the edges in the same manner as flat sheets. The following recommendations are important for good applications of Scotchlite reflective sheeting to the aluminum extrusion commonly used for highway signs. 1. Extrusion specifications should include an inset inches by inches on the side and have a radius of.040 inches on the corner. The old dimensions were x with a R. Very Important. 2. Use sheeting 12 3/4 inches wide. 3. Use commercial heat guns 1 prior to the edge roll assembly (see Figure 25). Direct the hot air at the sheeting edges just prior to the edge rollers. Teletemps (RAA-28) applied to the outside edges should reach 120 F to soften the top film and insure adequate adhesion. 4. Condition aluminum and sheeting to shop temperature (at least 65 F) for 24 hours prior to application. 5. The extrusion should be relatively flat between ribs and the ribs should be perpendicular to the face of the extrusion. Sheeting Overlap Reflective Sheeting Groves For Overlap Not to Scale Reflective Sheeting Figure 21: Stop application on scrap panel. Spot Weld 10 Figure 22: Typical Extru-Sheet cross-section

11 B. Collar Roller Assembly 1. The Collar Roller Accessory, RAA-2, is used as a bottom roller when reflective sheeting is applied to extruded panels or Extru-Sheets. The Collar Roller consists of a steel shaft with movable aluminum collars that support the underside of extrusions or Extru-Sheets. These collars must be positioned so that the panels are run in the center of the machine. The two-inch wide collars are used to support the flat panel areas of extrusions and Ex-Sheets. The oneinch collars are smaller in diameter and are used to support the welded Extru-Sheet ribs. Both types have locking screws to secure them to the roller shaft. NOTE: Do not use the standard rubber bottom roller for application to extruded or Extru-Sheet panels. 2. Collars not used under panels should be positioned to support the end of the top roller. 3. Tighten collars so that the gaps between collar halves are equal and the screws are in a straight line along the shaft. C. Edge Roller Assembly 1. The edge roller accessory is secured to the center of the Interstate exit table as shown in Figure To adjust the edge roller assembly, pass an extruded panel through the machine, on over the edge roller table. Adjust the roller assemblies to the extruded panel as necessary to support the panel and firmly roll sheeting over panel edges. Commercial heat guns 1 mounted as in Figure 25 are recommended to assist sheeting application at the edges. The guns should be aimed to eliminate folding resistance at the first edge roller and provide heat along the line of edge rollers. Avoid extreme temperatures which might damage the sheeting. 3. Follow standard application procedures. SHUT OFF the heat guns any time applications are stopped. 4. Panel edges must be clean. If overlap edges will not adhere, inspect the panel groove for contamination. See Information Folder 1.7 for panel preparation. Slipsheet Conveyor A.When a large number of small or irregularly shaped blanks are to be run, use the slipsheet paper conveyor to prevent the adhesive between blanks from adhering to the bottom roller during application. Figure 25: Edge roller assembly Extrusion A" 2" 2" 2" 2" Extru-Sheet B" A" 1" 2" 1" 2" 1" Figure 24: How the collars may be positioned to support an extrusion and/or Extru-Sheet panels 1 Available in commercial supply catalogs such as Grainger Supply. Typical is Master Appliance Model 42714, 115V, 12 amps, 500 F maximum temperature, pistol type. 11

12 Nip Rolls Strip Roll Sheeting Rolls Conveyor Table (1) (2) (3) Slipsheet Roll Conveyor Table Figure 27 Figure 26: Loading table To load the slipsheet roll, thread the paper from the bottom mandrel up and over the conveyor table, through the space between the rubber nip rollers (see Figure 26). Paper from the bottom mandrel must unwind under tension to operate properly. B. Figure 27 shows possible ways of threading 1. Long conveyor 2. Short conveyor 3. Roller protection only C. Figure 27 shows a typical nesting arrangement that may be used to feed irregular sign blanks. 1. To load the slipsheet roll, thread the paper from the bottom mandrel up and over the conveyor table, through the space between the rubber nip rollers (see Figure 27). 2. The paper from the bottom mandrel must unwind under tension to operate properly. Figure 28 Trouble Shooting Condition Probable Cause/Corrective Steps A. Machine will not turn on. 1. Power plug disconnected on one or more operational switches in off position. See page 2 for switch locations. B. Panels will not remain aligned as they pass 1. Edge guides not properly aligned; see page 3. through the machine. 2. Panel not centered in the applicator. 3. Stock roll not entered on mandrel. NOTE: To minimize tracking where close 4. Rubber rollers not in alignment. tolerances are required (approximately 1/4 inch 5. Top rollers preload springs not uniformly adjusted. in an 8 foot panel) use edge guides on both 6. Top of the bottom roller lower than top of loadsides of panels. ing table rollers; see (1.3) for alignment details. 7. Incorrect top roller pressure; see page Stock mandrel misaligned with liner mandrel. Minor lateral adjustments may be made with lateral adjustment knobs (see Figure 8). 9. Warped or bowed rubber rollers. Replace roller(s) or have roller(s) professionally resurfaced. 10. Panels not square. Check panels with carpenter square. 12

13 Trouble Shooting (continued) Conditon Probable Cause/Corrective Steps C. Sheeting tracks off panels or wrinkles 1. Telescoped stock roll. Remove stock roll. during application. Stand on end and rewind sheeting into alignment. 2. Stock roll and liner roll misaligned. Minor lateral adjustments may be made with the Lateral Adjustment Knobs (see Figure 8). Excessive lateral adjustments in either direction will cause mandrels to bind. For major adjustments, cut liner and re-attach to liner roll in proper position. 3. Tapered collar set screws loose. 4. Improper liner stripper roller position. Roller must be Up on both sides for application of High Intensity Grade sheeting. 5. Stock or liner mandrel shift laterally. Check set screws in Lateral Adjustment Knobs and tighten if necessary. D. Sheeting cracks after application of 1. Reduce brake and clutch tensions. Apply screen process colors. sheeting as on page Increase air flow through drying racks. 3. Use recommendation ink series. Maintenance Periodically check applicator condition and alignment, particularly if the machine has been used extensively. Check rubber rollers for wear with a straight edge. If low spots or worn areas are observed, replace the rollers or have them professionally resurfaced. Check the bearings on all rollers and replace where necessary. A. Lubrication 1. Refer to Information Folder 1.3 for detailed lube instructions. 2. Periodically grease motor drive and roller bearings. Do Not use silicone based lubricants. 3. Maintain proper gear box oil level per motor drive instruction plate. 4. All moving parts, including threaded adjustment rods, should be lubricated at points of contact with light grade machine oil. B. Bottom Roller Cleaning 1. To remove adhered sheeting scraps, use the heater to soften the material. Carefully remove sheeting with a slightly sharpened spatula. Use extreme care to avoid damage to the rubber. 2. Use 3M Citrus Base Industrial Cleaner. Do Not Use The Heater While Working With Solvents. C. Periodically check heater aim per Information Folder 1.3, Section IV-C 13

14 Literature Available from 3M Scotchlite Interstate Squeeze Roll Applicator - Specifications, Installation Alignment, Maintenance IF 1.3 Color Application Instructions IF 1.8 Cutting, Matching, Premasking, Prespacing IF 1.10 Storage, Maintenance, Removal. IF 1.11 Scotchlite Process Colors & Clears - Series 880 & 840 PB 880/884 Scotchlite Process Colors - Series 700 PB 700 Scotchlite Reflective Sheeting Series 2200, 3200, PB 2200, 3200, 5200 Scotchlite Reflective Sheeting Series 2870, 3870, 5800, 9800 PB 2870, 3870, 5800, 9800 Scotchlite Reflective Sheeting Diamond Grade LDP/Diamond Grade VIP PB 3970, PB

15 3M assumes no responsibility for any injury, loss of damage arising out of the use of product that is not of our manufacture. Where reference is made in the literature to a commercially available product, made by another manufacturer, it shall be the user s responsibility to ascertain and follow the precautionary measures for its use outlined by the manufacturer. Important Notice. All statements, technical information and recommendations contained herein are based on tests we believe to be reliable, but the accuracy or completeness thereof is not guaranteed, and the following is made in lieu of all warranties, express or implied: Seller s and manufacturer s only obligation shall be to replace such quantity of the product proved to be defective. Neither seller nor manufacturer shall be liable for any injury, loss of damage, direct or consequential, arising out of the use of or the inability to use the product. Before using, user shall determine the suitability of the product for its intended use, and user assumes the risk and liability whatsoever in connection therewith. Statements or recommendations not contained herein shall have no force or effect unless in an agreement signed by officers of seller and manufacturer. 3 Traffic Control Materials Division 3M Center, Building 225-5S-08 3M Canada Inc. 3M Mexico, S.A. de C.V. P.O. Box P.O. Box 5757 Apartado Postal Printed on recycled paper St. Paul, MN London, Ontario N6A 4T1 Mexico, D.F