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Resumen del manual
Acorn Nuts Weld Screws Figure 9. Replacing Spring Tensioner Assy. 4. Make sure the spacers are placed inside the tensioner arm. The spacers are smaller than the holes to allow the tensioner to pivot freely. Replacing Conveyor Motor and Fan Blade NOTE: A small amount of Loctite (Blue & Red) is required for proper gear motor installation. 1. Remove control cover. 2. Disconnect the motor wires and remove the drive motor and drive motor bracket (Figure 10). Discard the 8-32 x 5/16” mounting bracket screws. 3. Remove the motor sprocket using a hex wrench. 4. Remove the drive motor bracket from the gear motor. Save the four 10-32 x 3/8” pan head screws (P/N 310P154). 5. Place one drop of Loctite (Blue) into each threaded hole in the gear reducer casting. Attach the drive motor bracket to the gear reducer using the original four 10-32 x 3/8” screws (310P154) removed in step 3. 6. Attach the motor sprocket to the gear reducer as shown in Figure 10. NOTE: Be sure sprocket setscrew is positioned on the flat of the gear reducer shaft. Maintain the 3/16” dimension as shown in Figure 11. Apply Loctite (Blue) to threads of setscrew and tighten securely. 7. Using the four new 8-32 x 5/16” stainless steel SEMS truss head screws (P/N 308P151), attach the drive motor bracket to the mounting bracket. DO NOT tighten screws at this time. 8. Place the drive chain on the sprocket and push down on motor. Allow 1/4” (0.6 mm) play at middle of drive chain, then tighten mounting screws while holding motor. Check drive chain play after tightening screws. 9. Re-connect motor wires, one at a time. 10. Re-install control cover. POWERTEMPDOWNTEMPUPTEMPSCALE .C .F MAINTENANCE (continued) Motor Sprocket Mounting Bracket Drive Motor Bracket Mounting Bracket Screw(308P151) Motor Mounting Screw (310P154) Fan Blade Drive Motor/Gear Reducer - Place 1 drop of Loctite (Blue) into each threaded mounting hole of reducer before installing. Figure 10. Replacing Drive Motor and Fan Blade Apply Loctite (BLUE) on setscrew of sprocket and all other mounting screws. 3/16” (4.75 mm) Apply only 1 drop of Loctite (RED) to front of fan assy. after assembly. Outer edge of fan blade hub to be flush with end of motor shaft. Figure 11. Replacing Drive Motor and Fan Blade TROUBLESHOOTING WARNING To avoid possible personal injury and/or damage to the unit, inspection, test and repair of electrical equipment should be performed by qualified service personnel. The unit should be unplugged when servicing, except when electrical tests are required. Use extreme care during electrical circuit tests. Live circuits will be exposed. Problem Possible Cause Corrective Action No heat and conveyor belts do not move. Toaster is installed incorrectly. Perform installation and operating procedures (pages 7-9). Not enough voltage, defective power cord, defective rocker switch. Check receptacle for correct voltage. See Specifications (page 5). With unit plugged in and rocker switch on, check for correct voltage into rocker switch. If low or zero voltage, replace power cord. If voltage is correct, check for correct voltage out of rocker switch. If low or no voltage, replace rocker switch. Hi-limit switch tripped open. Reset hi-limit switch (Fig. 5, page 9). Wiring problem. Check all electrical connections for burns, discoloration or arcing. Replace all connections or components with damaged terminals. Replace all damaged wiring with the same (or higher) rated wire. No heat and conveyor belts move. Wiring problem. Check all electrical connections for burns, discoloration or arcing. Replace all connections or components with damaged terminals. Replace all damaged wiring with the same (or higher) rated wire. Inoperative platen. To check platen: Use an Ohm meter to test resistance of the platen heater (disconnect 1 wire to isolate heater). Correct cold resistance for heating element of platen are as follows: 120 Volts, 1750 Watts - 7.8 Ohms208 Volts, 2550 Watts - 16.2 Ohms230 Volts, 1900 Watts - 26.5 Ohms VCT-20 only. The auxiliary heaters are 144.2 Ohms at 208V/300 Watts. TROUBLESHOOTING (continued) Problem Possible Cause Corrective Action Platen is hot and conveyor belts do not move. Toaster is installed incorrectly. Perform installation and operating procedures (pages 7-8). Wiring problems. Check all electrical connections for burns, discoloration or arcing. Replace all connections or components with damaged terminals. Replace all damaged wiring with the same (or higher) rated wire. Drive motor inoperable or incorrect conveyor drive motor. To check drive motor: 1. Measure resistance of motor coil. Replace motor if coil measures either open circuit or zero resistance. 2. Mark the drive motor sprocket and count the turns per minute. Correct drive motor speed is nine (9) turns per minute for VCT- 20; three (3) turns per minute for VCT-25; one (1) turn per minute for VCT-50. Broken drive chain or loose sprocket. Check drive chain for kinks, broken or bent links or other damage. Check motor...
Otros modelos de este manual:Tostadores - VCT-20 (1.6 mb)
Tostadores - VCT-25 (1.6 mb)