Grindmaster MG23-2B Seal Maintenance Bell Shaped Seal, Spindle Bushing Seal, O-RingMaintenance

Figure OO

Maintenance (con’t)

Seal Maintenance

Bell Shaped Seal

•Replace every 1 to 6 months depending on conditions of use and level of maintenance and lubrication. This part should be lubricated during re-assembly after every cleaning.

Spindle Bushing Seal

•Replace every 6 to 12 months depending on conditions of use and level of maintenance. Replacement of spindle bushing should ONLY be done by a qualified service technician.

To Replace Spindle Bushing:

Tools required: Power screwdriver, Rubber mallet, Replacement Kit #90104, spindle bushing extraction tool #90544

Each PM kit # 90104 contains 2 bell shaped shaft seals, 2 spindle bushing seals, 4 dispense valve o-rings, 1 lami- nated care and cleaning card and one PM checklist.

1.Empty product bowl and disassemble as if for cleaning. Spindle bushing seals should be replaced every 6-12 months and bell-shaped shaft seals should be replaced once every 1-6

months depending on conditions of use and maintenance.

2.Slide the threaded metal cylinder on the drive shaft so that the flat surface meets the face of the evaporator cylinder.

3.Thread the two tapping screws (max length 1 1/8”) through the holes in the tool and into the spindle bushing seal. Use of a power screwdriver is suggested. (See Figure MM)

Figure MM

4.Screw the outer cylinder of the extracting tool on to the metal cylinder by rotating clockwise until it is fully connected.

5.Continue turning the outer cylinder clockwise until the spindle bushing seal is removed. If necessary, apply higher torque by inserting a screwdriver in the holes of the outer cylinder. (See Figure NN)

6.After extracting the old spindle bushing seal, position a new one in the evaporator cylinder. The gasket (black side) should be facing the inside of the evaporator.

Figure NN

7.Position the inserting pipe so that it’s smaller diameter touches the spindle bushing seal.

8.Push the spindle bushing seal in by tapping on the pipe with a rubber mallet. Be sure the spindle bushing seal is completely in place. (See Figure OO)

9.Reassemble bowl.

When replacing the spindle bushing be sure to check the condition of the driveshaft. If the

surface is not smooth and the driveshaft is not secure, then replace the driveshaft while replacing the spindle bush- ing. Replacement of a driveshaft should only be done by a qualified service technician using PM kit #90110.

Bowl Gasket (located at rear of bowl)

•Replace as necessary depending on the conditions of use and level of maintenance. This part should be lubricated during re-assembly after every cleaning.

O-Ring Maintenance

•O-rings should be replaced every 6 to 12 months or as necessary where wear is apparent.

G & MG Series Granita Machine Page 13