Cornelius JetSpray JS7 Technical Information download pdf (Page 17)

Jet Spray (Cold) Training Manual

2. NOISE IN PUMP ASSEMBLY

2.1 Impella Spacing

Correct installation and maintenance of the impella is very important to efficient

operation and the appearance of the product in the bowl.

2.2 Breaking Magnetic Lock

The operation of the spray drive motor and impella is simple. The two magnets,

one on the spray drive motor and one on the impella assembly, “lock” these com-

ponents together. When that lock is broken it creates noise and/or an improper

pumping action. The alignment of the two components is to correct and efficient

operation.

Problems that cause that loss of magnet alignment include:

• Improper product mix

• Worn bearing on the impella unit

• Worn impella pin or shaft

• Bowl assembly not correctly seated on the chassis

• Impella installed upside down

• Pumps not being run, allowing solids to settle in the bottom of the bowl.

Both the pump refrigeration switches should be on whenever product is in the

bowl.

3. PINCH TUBE INSTALLATION

1. Remove pinch tubes from the plastic bag and wash with warm and mild deter-

gent or soap.

2. Visually check for cuts or holes in the pinch tube assembly.

3. Wet bowl spout surface and sealing rings on the pinch tube.

4. With one hand, push back dispense lever until it touches the front panel. With

the other hand, pick up pinch tube and carefully insert tube into bowl spout

opening, and into lower handle support spout. Make sure end of tube does not

get caught on edge above handle support spout opening.

5. Push pinch tube into bowl spout opening with thumb. When end of tube passes

beyond bottom of dispense lever support spout opening, pull end of tube for

final seating of pinch tube top into bowl spout seat. Make sure the tube is free

of wrinkles. Tube should extend ¼" below support spout.

6. Install other pinch tubes on the unit if needed.

TROUBLE SHOOTING

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Cornelius JetSpray JS7 Technical Information Page 17