Assessments - 5, GPA: 4.4
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Pinch the “O” Ring upward with a dry towel between your index finger and thumb. When a loop is formed in the “O” Ring, roll it out of the groove with your other thumb. Always remove the “O” Ring farthest from the end of the plunger first. (See figure M). 2. Take all components to the cleaning area. 3. Carefully inspect the “O” Rings and replace if necessary. Cleaning Carburetor, Dispensing Valve and Plunger Assembly 1. Prepare 1 gallon solution of hot tap water and a good grade of dishwasing detergent. 2. Thoroughly wash valve plunger, spring, carburetor assembly and all “O” Rings in detergent solution. 3. Using medium sized brush (supplied with freezer) clean the Figure N Clean Valve Body bottom of the valve body and the inside of the plunger bore with detergent solution taking care to remove all remaining lubricant (figure N). Sanitizing Carburetor and Valve Components 1. Re-assemble carburetor assembly installing the two “O” Rings at the bottom of the carb tube. 2. Place the carburetor assembly in the bottom of the hopper. 3. Replace “O” Rings on valve plunger and lay plunger assembly on a clean piece of paper towel. 4. Prepare a minimum of 4 gallons (15 liters) of sanitizing solution (Stera Sheen Green Label or equivalent) following the manufacturer’s instructions. Note: Add 4 ounces of Stera Sheen to 4 gallons (15 liters) of 120° Fahrenheit (50° Centigrade) water to achieve a concentration of 100 parts per million. Figure O Sanitize Valve Body 5. Dip the medium sized brush (supplied) into the sanitizing solution and sanitize the inside bore of the dispensing valve (figure O). 6. Place a small amount of sanitary lubricant onto a piece of clean paper toweling (figure P). 7. Use a clean piece of paper toweling to pick up the small end of the valve plunger assembly. Apply the lubricant on the other piece of paper toweling to the “O” Rings on the valve plunger assembly (figure P). Figure M Ring Removal Figure P Lubricate Plunger Crathco® 5311 & 5511 Manual Page 12 Sanitizing Carburetor and Valve Components (cont.) 8. Slide the valve plunger spring over the small end of the valve plunger and, using another clean piece of paper toweling, pick up the valve plunger at the outlet end and insert plunger and spring into the valve body (figure Q). 9. Push up on the valve plunger and insert the stainless steel handle (figure R). Figure Q Installing Plunger and Spring 10. Insert the dispensing valve handle retaining pin (figure S) Sanitizing and Refilling 1. Pour sanitizing solution into the mix storage hopper and allow the solution to fill freezing cylinder. Use a large brush (supplied) to sanitize all hopper surfaces (figure T). 2. Turn panel switch to “CLEAN” and allow freezer to run for 20 minutes. 3. Open dispensing valve and drain solution. Allow the auger to push remaining sanitizer out of the freezing cylinder. 4. Place a small amount of sanitary lubricant onto another piece of clean paper toweling (figure U). 5. Use a clean piece of paper toweling to pick up the large end of the carburetor from the bottom of the hopper taking care not to touch the sanitized carburetor with your bare hands. 6. Apply the lubricant on the other piece of paper toweling to the two “O” Rings on the bottom of the carburetor assembly (figure U). 7. Place the lubricated carburetor assembly on a clean piece of paper toweling. 8. Use either fresh product or mix new product according to manufacturer’s instructions. 9. Fill mix storage hopper with product. 10. Open dispensing valve. Pour product into the hopper and allow this product to chase out any remaining sanitizer. Figure U Lubricate Carb Tube Figure R Insert Valve Handle Figure S Insert Retaining Pin Figure T Sanitize Hopper Crathco® 5311 & 5511 Manual Page 13 Sanitizing and Refilling (cont.) 11. Watch the product flowing out of the dispensing valve and close the Valve when the sanitizer remaining in the cylinder has been purged by the new mix. 12. Use a clean piece of paper toweling to insert the sanitized carburetor assembly into the inlet hole in the hopper (figure V). 13. Fill mix storage hopper with fresh product. 14. Turn front panel switch to “ON”. Allow approximately 20 to 30 minutes for the freezer to reach proper consistency. Figure V Carb Tube Cleaning Following Complete Disassembly of Unit 1. Remove knobs and carefully remove the front dispensing valve assembly. 2. Disassemble the dispensing valve assembly by removing the retaining pin, pushing up on the plunger assembly and pulling out the handle. This will allow the plunger assembly, complete with O-Rings, to be removed as a unit. Remove the spring. Remove the O-Rings from the plunger assembly and back of the dispensing valve body. (See Figure W.) Note: The best way to remove an O-Ring is to first wipe off all of the lubricant using a clean paper towel. Pinch the O-Ring upward with a dry towel between your index finger and thumb. When a loop is formed in the O-Ring, roll it out of the groove with your other thumb. Al...
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