Yogurtmatic 920
Contents
1. Check that the elevator will move up and down without any resistance Check visually the aluminum base to make sure there are no cracks Check the stainless steel lever on each side and make sure there are no loose bolts screws or nuts Resfab Start Up Page 6 Check if the arm is screwed tightly and does not move inside T 19 a 4 V Put back the lower shield the top shield the mobile guard and the tray _ Plug blender into the outlet and turn unit on Resfab Start Up Page 7 A a A M e ar MC JV LA 1 ar Bypass the safety switch and lower the arm to check if the auger turns without unusual noise and without vibration 2 With the rinse cylinder on the cone lower the arm and press the rinse button Make sure there are no leaks on the water valve Check that the rise double water jet works properly 22 IMIK Put the in the elevator and lower the arm to make sure the auger does not scratch the inside of the cone Resfab Start Page 8 Reassemble the unit and check for sharp edges and thatthe parts are free of damage Write the date serial numbers and your initials on the small start up sticker provided with the form and stick it on the inside end of the top panel When you have a service call this sticker will help you to know if t2. the bolt of VI the flapper You should tighten with approximately 45 5 pound of torque 5 7 5 Replace cabinet top and front panel 6 Plug unit back into outlet Service is complete and blender is ready for operation 6 Auger does not disengage 1 If the auger does not stop turning that means the micro switch Part 241 is defective and needs to be replaced A Resfab Trouble Shooting Page 15 Remove the front panel top and cabinet Make sure the power switch is OFF First with a screwdriver you will unscrew the 2 wires on the micro switch and remove them from the micro switch Then use 9 16 wrench to remove the flat nut at the back of the micro switch Remove the defective micro switch Take the new micro switch and screw it back in place and screw the electric wire back into the switch i J n Replace cabinet top and front panel _ 6 Plug unit back into outlet Service is complete and blender is ready for operation 7 Grinding Noise from Aluminum Housing 1 grinding noise is coming from the aluminum housing over the auger the bearing 15 worn and the housing assembly glides need to be replaced Before performing any cleaning or service always turn the machine off and unplug the unit from the wall outlet 3 Remove the front top cabinet cover front plate and the belt guard Remove the auger Part 1
3. up is done Fill out the top of the check lists completing all information about the store DO NOT forget to write the serial numbers of the blenders you are installing on the check lists START UP Make sure the entire protective plastic shield is removed from entire blender body Make sure the 4 legs are screwed tightly onto the blender base and use a level to level the blender Resfab Start Up Page 3 Make sure blender is turned off and unplugged from the outlet Remove the tray E ou the mobile guard Remove the front panel pins and mobile guards the top and lower shield the top cover and unscrew the cabinet and remove Screw turning counter clockwise the extrusion matrix onto the cone to make sure that it screws freely Resfab Start Up Page 4 Remove the auger transmission bushing and master spring from the blender Check that the transmission bushing slides freely but without being too loose onto the master shaft Put the transmission bushing pin in place and make sure it fits tight but easy to install Check that the auger slides freely but without being too loose onto the transmission bushing Put the auger pin in place and make sure it fits tightly but easy to insert Check the knife adjustment The bottom of the knife blade should be at 532 from the bottom of the cone edge Resfab Start Up Page 5 Check that the belt is well adjusted and not too tight
4. 11 transmission bushing Part 107 and the waster spring Part 105 Remove the belt Part 229 to free the pulley Loosen the setscrew of the pulley and remove the pulley Part 102 6 7 ____ __ Loosen the 2 setscrews on the bearing Part 104 gt BR iat and finally by using a 5 16 allen key unscrew the 2 Bearing 4 bolts on each side of the flange bearing Part 104 until the housing is free You may need rubber Set Screw hammer to hit the top of the master shaft if the gt housing is stuck on the top plate M Remove the housing remove the 2 orings on the flat side of the housing I Place the two o rings on the new housing Housing A A M Assembly E ASK 2 RRNA a ENTER X Tali L f 1 Ve 10 Slide the new housing shaft in the top plate hole then with the allen key screw back the 2 bolts Resfab Trouble Shooting Page 16 Before tightening the bolts align the shaft with the auger and transmission bushing in the cone Screw the bolts very tightly and screw the 2 setscrews 12 Put the pulley back into place and tighten the pulley setscrews 13 Put the belt back on 14 Replace cabinet top and front panel 5 Plug unit back into outlet 6 Service is complete and blender is ready for operation 46 Rinse water valve is leaking 1 If the ri
5. 21 332 Part No R4 14 261 R4 14 262 R4 14 262G R4 14 263 R4 14 264 R4 14 301 R4 14 302 R4 14 303 R4 14 304 R4 14 305 R4 14 306 R4 14 307 R4 14 308 R4 14 309 R4 14 310 R4 14 311 R4 14 312 R4 14 319 R4 14 320 R4 14 321 R4 14 332 Description Assembled bearing housing Matrix nut Matrix with slide Ass y Knob Nylon fitting Front plug Front screw Push button Return spring Cylindrical nut Valve husing Small O ring Great O ring Valve piston Stop washer Rear screw Nylon fitting Relay model 920 only O ring for Sliding Matrix Red blocking screw for Sliding Matrix safety switch Bawa aaa anor 2 Resfab Trouble Shooting Page 28
6. 48 247 248 249 250 251 252 253 254 255 256 257 258 259 260 R4 14 218 R4 14 219 R4 14 220 R4 14 221 R4 14 222 R4 14 225 R4 14 226 R4 14 227 R4 14 228 R4 14 229 R4 14 230 R4 14 231 R4 14 232 R4 14 232S R4 14 233 R4 14 234 R4 14 235 R4 14 236 R4 14 237 R4 14 238 R4 14 239 R4 14 240 R4 14 241 R4 14 243 R4 14 244 R4 14 245 R4 14 246 R4 14 247 R4 14 248 R4 14 249 R4 14 250 R4 14 251 R4 14 252 R4 14 253 R4 14 254 R4 14 255 R4 14 256 R4 14 257 R4 14 258 R4 14 259 R4 14 260 Description Top shield Lower shield Belt guard Rinse cylinder Cone Mobile guard pin Mobile guard Mobile guard guide Adjustment screw Belt Top front plate Driver pulley Tray Deep collar Tray Sliding matrix Main pivot Secondary pivot Electric water valve Motor 110 220 v 50 60 Hz Power cord Turnbuckle Top plate Main column Micro swtich Linear bearing teflon R4 14 203A Vertical lever support Driver pulley key Major lever Angular brace Vertical lever Horizontal brace Sliding lever Micro switch support Bulkhead connector Fitting and nut Switch wire Stiffening angle Nylon tube Nylon elbow Adjustable leg Nylon T Assembled valve a iP N Se B Oa st Resfab Trouble Shooting Page 27 261 262 263 264 301 302 303 304 305 306 307 308 309 310 311 312 319 320 3
7. 5 coming out like whipped cream it s because the product is too soft or too hard 2 If the product comes out like a round tube it s because the product is too hard The optimal product temperature is minus 5 F or minus 17 Thatis the product temperature not the freezer ambient temperature Check regularly and with a sanitized probe Check the internal temperature of the product in the freezer Resfab Trouble Shooting Page 18 27 x M N Oe o LAR Page 19 Resfab Trouble Shooting Resfab Trouble Shooting Page 20 Resfab Trouble Shooting Page 21 22 Resfab Trouble Shooting Page 23 Resfab Trouble Shooting ELECTRIC DIAGRAM 120 V 50 60 Hz __ __ SWITCH BLACK WHITE 5 MICRO SWITCH N MAIN SWITCH GREEN MOTOR WHITE 120 V 90 60 Hz BLACK JUNCTION BOX Page 24 Resfab Trouble Shooting ELECTRIC DIAGRAM 220 V 50 60 Hz SAFETY SWITCH BLACK WHITE 5 E PLUG _ GREEN WHITE BLACK 50 60 Hz ee BLACK S MAIN A SW
8. ITCH BLACK OOO JUNCTION BOX Resfab Trouble Shooting Page 25 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 R4 14 101 R4 14 102 R4 14 103 R4 14 104 R4 14 105 R4 14 106 R4 14 107 R4 14 108 R4 14 109 R4 14 110 R4 14 111 R4 14 112 R4 14 113 R4 14 114 R4 14 115 R4 14 116 R4 14 117 R4 14 118 R4 14 119 R4 41 120 R4 14 201 R4 14 202 R4 14 203A R4 14 204 R4 14 205 R4 14 206 R4 14 207 R4 14 208 R4 14 209 R4 14 210E 4 14 211 R4 14 212 R4 14 213 R4 14 214 R4 14 215 R4 14 216 R4 14 217 PART LIST Description Driven pulley key Driven pulley Master shaft Flange pillow block Master spring Bushing pin Transmission bushing Knife holder stem Knife spring Auger pin Auger Knife Dismounting tool Bearing housing Ball bearing Great snap ring Small snap ring O ring Spacer bushing Rubber seal Base Elevator Vertical guides for R4 14 243 Main power switch Power switch plate Junction box Spring pins Opposite major lever Hub pressure screw Lever ergonomic Lever pressure screw Lever holder Casing Cover Front panel Acrylic plate Electric rinse button Resfab Trouble Shooting Page 26 218 219 220 221 222 225 226 227 228 229 230 231 232 232 233 234 235 236 237 238 239 240 241 243 244 245 2
9. SSD Start Up amp Troubleshooting Manual Resfab Equipment Inc 725 Rossiter St Jean Sur Richelieu 1 450 359 0800 Website resfab com Hesab Yogurt Blender Service Manual Page SECTION 1 ee ee 3 thru 11 SECTION 2 TROUBLE SHOOTING 1 12 2 Elevator Height Adjustment 12 13 3 Drive es 13 14 Au 14 15 Auger N t Engaging 15 6 Auger Does NotDisengage 15 16 7 Grinding Noise From Aluminum Housing 4 0 sss sess snes 16 17 8 Rinse Water Valve is Leaking u 17 18 EB EDE E Lk RES SSD 18 SECTION 3 DRAWINGS amp PARTS LIST a am 19 Thru 23 Electric Diagrami 120V 50 6012 24 El ctric Diagrami 220 V 50 60 25 ne _ _____ 26 thru 28 Resfab Yogurt Blender Service Manual START UP amp REPAIR You should schedule the start up with the information provided by Resfab which includes your contact person location and phone number before going to the site Before starting the installation of the blender make sure you have one Resfab check list form for each machine and that the Contact Person is there to sign the check list after the start
10. ace the large spring onto the main drive shaft and reinstall the transmission bushing placing 10 the bushing pin in the bottom hole Slide the auger onto the transmission bushing and insert auger pin into opening to lock auger in place Reinstall the pulley and put the belt back on Plug unit back into outlet 14 Alignment is complete and blender is ready for operation CD OT 2 44 Auger Vibrating 1 If blender begins to make a noise or the auger is shaking the belt is too tight and needs to be adjusted Before performing any cleaning or service always turn the machine off and unplug the unit from the wall outlet The belt is adjusted by adjusting the 4 bolts from the motor to the main channel Resfab Trouble Shooting Page 14 4 V li b M Use a 72 wrench to untighten the lower bolts from the 1 motor to the main channel If you need to loosen the A AW belt more tighten the upper bolts slightly Plug unit back into outlet 6 Alignment is complete and blender is ready for operation 45 Auger not engaging 1 If the machine does not start when lowering the arm The back flapper Part 250 is to loose and cannot activate the micro switch 12 2 Remove the front panel top and cabinet Make sure the power switch is Using your finger move the back flapper and check if it Mm is loose NE Ol If it is loose use 9 16 wrench and tighten
11. e drive shaft maybe out of alignment 3 Drive Shaft Alignment Before performing any cleaning or service always turn the machine off and unplug the unit 1 from the wall outlet a Begin by removing the auger Part 111 With one hand supporting the auger remove the auger pin Part 110 A Utilizing the auger pin push the bushing pin Part 106 out of the transmission bushing Part 107 slide the transmission bushing off of the master shaft Part 103 along with the master 3 spring Part 105 Place auger and transmission bushing in the center of the cone Resfab Trouble Shooting Page 13 With the auger and transmission bushing in the pull the arm down slowly and check to see if the main drive shaft slides into the auger If the shaft does not Slide into the auger it is out of alignment NOTE WHICH SIDE OF THE AUGER THE SHAFT IS a TOUCHING First remove the belt Part 229 then remove the pulley Part 102 Loosen both the bearing bolts just enough to allow adjustment kd gt i z x gt m 3 f Looking into cone check the alignment of the shaft and adjust by tapping the shaft gently Slowly lower the arm down to recheck the alignment Shaft should slide smoothly into the auger throughout the entire arm stroke When alignment is complete retighten the baring bolts After tightening the bolts make one final alignment check by lowering the arm slowly Pl
12. he blender is still under warranty Place your company service sticker with name and number on the side of the blender casing Resfab Start Up Page 9 26 Note the check list any adjustments or repairs you have made on the blender during the start up Resfab YOGURT BLENDER startup sheet Store address Manager s name Phone 21 Have the check list signed by the Contact lt Person atthe store 28 in Sign the check list 23 Leave the store copy with the Contact Person and bring the other two copies to vour office Resfab Start Up Page 10 Fax or e mail the factory copy to the factory and mail the original keeping the copy for vour records FAX 352 728 1904 EMAIL lindabarwick resfab com Mail the invoice for the Start Up along with the original Post Verification Inspection Start Up form to Resfab Equipment 8645 Treasure Island Road Leesburg FL 34788 Resfab Start Up Page 11 TROUBLE SHOOTING 41 Elevator Alignment If there is resistance when operating the arm the aluminum elevator may be out of 1 alignment on the shafts Before performing any cleaning or service always turn the machine off and unplug the unit 2 from the wall outlet Remove the front cover 77 This is easily corrected by readjusting the turnbuckle at the front left side of the blender Part 238 Remove the mobile guard Loosen the top nut over the alum
13. inum shaft Readjust turnbuckle by turning it left or right until aluminum elevator slides smoothly up and down the shafts 7 Retighten turnbuckle nuts P Check alignment by raising and lowering the arm Elevator should slide smoothly up and down the shafts 9 Reinstall mobile guards and front cover Plug unit back into outlet Alignment is complete and blender is ready for operation 2 Elevator Height Adjustment If the blender begins to make a noise or if the cone begins to develop grooves or if the 4 knife begins to wear or the product is stuck in the matrix The elevator stop pins need to be adjusted Before performing any cleaning or service always turn the machine off and unplug the unit 2 the wall outlet Remove the front cover Two stop pins are located on each side of the top front near the mobile guards Part 14228 Adjustment Screw 4 Pull arm down to cone and check the clearance between the cone and the bottom of the Resfab Trouble Shooting Page 12 Adjust both side pins until there is 5 32 clearance between the bottom of the cone rim and the bottom of the knife Bottom of the bnie blade ETE P Di of the following different repairs have to be done with the front panel mobile guard top panel and casing removed to be able to work on the part that needs to be repaired If the blender begins to make noise and the cone becomes grooved th
14. nse water valve is leaking 2 Before performing any cleaning or service always turn the machine off and unplug the unit from the wall outlet Remove the plastic hose from the back nylon fitting Part 312 You may need a screwdriver to unscrew the collar or a cutter if the factory secured the tube and the fitting with an oeteker clamp Using an 11 16 wrench remove the nylon fitting Part 312 With a screw or a knife remove the silver cap on the valve button Part 301 Use two screw drivers one in the front screw and one in the back inside screw of the valve and unscrew until the valve piston Part 309 can be removed pr A N 94 pet 20 p 4 4 d gt 37 a X Resfab Trouble Shooting Page 17 igoRing Be RUE gt TAR Slide the spring on the valve piston and re insert the valve piston in the valve body Using the two screw drivers to screw the piston in place Screw back the nylon fitting Re connect the plastic tubing Re install the silver cap in the valve button Plug unit back into outlet Service is complete and blender is ready for operation at Change 4 o rings on the valve piston The big ar ge o ring needs to be slightly tight between the washer and the end of the piston 9 End Product Issues 1 Ifthe
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