Assessments - 3, GPA: 4
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2 Remove the new seal from its packaging. 3 Clean the spacer. 4 Slide the spacer (with slots toward the motor housing) over the motor shaft. 5 Lubricate the inside of the seal using Dow Corning 111 Lubricant and Sealant. (Note, Do not lubricate the static side (outer portion) of the seal. This could cause the seal to rotate in the bore and leak.) 6 Carefully slide the seal over the motor shaft and press it firmly until is fully seated against the spacer and the seal cannot be pushed any further. 7 Run your finger around the perimeter of the seal to insure it is flush against the back of the barrel. 8 Reinstall the blade assembly. Rotate the assembly while inserting it to insure that it is fully seated on the motor shaft. (Figure 30) 9 Lubricate the faceplate o-ring. 10 Re-install the faceplate and replace the four (4) mounting nuts. Hand tighten the nuts until the faceplate makes contact with the gasket, then use a wrench to tighten the nuts an additional 1/4 turn. Be careful not to overtighten the nuts or cracking of the faceplate may result. 11 Clean the drip tray and tube using warm water. 12 Perform the seal leak test in . Motor Shaft Spacer (Note Orientation) Figure 35. View of Motor Shaft with Spacer on Shaft © 2010-2012, IMI Cornelius Inc. - 54 -Publication Number: 621360041TBSER Viper Service Manual Seal Spacer Figure 36. Side View of Seal and Spacer on Motor Shaft MOTOR SEAL LEAK TEST After replacing the motor seal, it is advisable to test the seal under pressure before refilling the barrel with product. Perform the procedure in to verify that the seal is installed properly and not leaking. When the seal passes the leak test, perform the motor calibration routine on page 38. Table 47. Step Action 1 Turn the 3-way Product Supply valve behind the splash panel (see Figure 26) to the Off (horizontal) position. 2 From the Maintenance menu, press the FILL button for the barrel. This pressurizes the barrel with CO2. 3 Observe the water and syrup fill solenoids. 4 If there are NO seal leaks, these solenoids cycle off within a minute and remain off. 5 If the solenoids cycle off and remain off, the barrel seal is not leaking and the barrel is ready to be filled with product. 6 If the solenoids do not cycle off, or cycle off and on, the seal is leaking and the seal installation process described in and must be repeated. 7 If there are no leaks, turn the 3-way Product Supply valve to the BRIX position. BARREL MOTOR REPLACEMENT The barrel motor does not require any special alignment when being replaced. It mounts on four (4) bolts. These bolts are screwed into threaded bosses in the foam pack barrel assembly, as shown in . To replace a barrel motor, perform the procedure in . Publication Number: 621360041TBSER - 55 -© 2010-2012, IMI Cornelius Inc. Viper Service Manual Barrel Motor Mounting Bolts Foam Pack Figure 37. Side View of Motor Showing Two of the Four Mounting Bolts Table 48. Step Action 1 Perform the procedure in Steps 1 through 8 of . 2 Disconnect the motor from the circuit by unplugging the connector. 3 Remove the motor by removing the four (4) bolts holding the motor to the barrel assembly. 4 Install the replacement motor and connect the connector. 5 Replace the motor seal, scraper blade assembly onto the motor shaft in the barrel, as described in . 6 Reconnect power to the unit. 7 Refill the barrel with product. See “Filling a Barrel” on page 32. 8 When barrel fill is complete, perform a motor calibration. See “Calibrating a Motor” on page 38. MOTOR RUN CAPACITOR REPLACEMENT The motor run capacitors, shown in , are mounted at the rear of the unit between the barrel motors. To replace a run capacitor, perform the procedure in . Motor RunCapacitors Figure 38. View of Motor Run Capacitors © 2010-2012, IMI Cornelius Inc. - 56 -Publication Number: 621360041TBSER Viper Service Manual Table 49. Step Action 1 Disconnect power from the unit. 2 Remove the rear cover. 3 Disconnect the spade clips from the defective capacitor. 4 Remove the mounting screw from the base of the capacitor. 5 Replace the capacitor. 6 Reverse the procedure to install the new capacitor. 7 Reconnect power to the unit. 8 Refill the barrel with product. See “Filling a Barrel” on page 32. 9 When barrel fill is complete, perform a motor calibration. See “Calibrating a Motor” on page 38. WATER PUMP REPLACEMENT The water pump is located near the rear, center of the unit. It is mounted on a bracket facing the rear of the unit. To replace the pump, perform the procedure in . Water Pump Figure 39. Rear View of Water Pump Table 50. Step Action 1 Disconnect power from the unit. 2 Remove the rear cover and the side panels. 3 Disconnect the CO2 supply from the unit. 4 Remove and drain the water supply from the unit. 5 Disconnect the quick disconnect input and output water lines from the bottom of the pump. 6 Disconnect quick disconnect CO2 input from the bottom of the pump. 7 Remove the four (4) screws and locknuts holding the pump to the mounting ...