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

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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

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Contents Crathco Visual Granita Machine Introduction and Warnings Instructions For Machine Transport InstallationFigure F Connection To Main Power SupplyOperating Panel Preparing ProductOperating Panel -Electronic Touchpad Programming G Series Electronic Touchpad ModelsModel G23-2B Electronic Touchpad Setting Defrost Timer Night SettingOperate in Manual Mode without Defrost Timer Activated Operate in Automatic Mode with Defrost Timer ActivatedDefrost Timer Operating Instructions Stand-by mode settingTo obtain a slush To obtain cold night/defrost drinksConsistency Adjustment AdjustmentsDispensing Product Daily Cleaning Cleaning and Sanitizing ProceduresRectly positioned Cleaning and Sanitizing Procedures con’tRemoving and cleaning the filter Weekly MaintenanceCleaning the Condenser Monthly Maintenance con’tReplacing the Lightbulbs As Needed Lid LightsRing Maintenance Seal Maintenance Bell Shaped SealSpindle Bushing Seal To Replace Spindle BushingChecklist for Kit Serial # 11259 and above Crathco Granita Preventive Maintenance PMCrathco Granita Preventive Maintenance PMIf unit has been converted to unhardened Stainless shaft system, then use kit #90566Security Kit Installation Accessories not includedAutofills Problem Possible Cause Solution Troubleshooting GuideDispensing valve Troubleshooting Guide cont’dFor units up to serial number Exploded View MG23-2B 115/60Exploded View G23-2B 115/60 Serial number 8195 and higher Exploded View MG23-2B 115/60 Exploded View G235-2B 220/50 Exploded View MG235-2B 220/50 Exploded View G236-2B 220/60 Exploded View MG236-2B 220/60 Part Description Crathco Granita G & MG Series Parts ListGear Motor Exploded View Refrigeration Diagram Model G Series 115V/220V Refrigeration Diagram Model MG Series Electrical Diagram Model MG Series Electrical Diagram Model MG Series Electrical Diagram Model G Series 115V/220V Page

G23-2B, G235-2B, G236-2B, MG235-2B, MG23-2B specifications

The Grindmaster lineup, which includes models MG236-2B, MG23-2B, G236-2B, G23-2B, and MG235-2B, represents a significant advancement in commercial coffee grinding technology. These machines are designed for high-performance grinding capabilities in coffee shops, cafes, and other businesses that require consistent and efficient results.

One of the defining features of the Grindmaster MG236-2B and its counterparts is their superior grinding consistency. Each model is engineered to produce uniform particle sizes, which is essential for optimal extraction during brewing. This consistency not only enhances flavor but also ensures that customers receive a high-quality coffee experience every time.

These machines are equipped with advanced grinding technology, including high-quality burr grinders that effectively reduce heat generation during operation. This is critical as excessive heat can negatively impact the flavor and aroma of the coffee beans. The functionality focused on maintaining the integrity of the coffee's essential oils, allowing baristas to extract the best flavors from their beans.

Durability is another hallmark of the Grindmaster MG series. Made from robust materials and designed for heavy-duty use, these grinders can withstand the rigors of a busy commercial environment. The models are also easy to clean and maintain, featuring accessible components that simplify routine servicing.

User-friendliness is considered in their design. Each model comes with intuitive controls that allow baristas to adjust grind settings easily. This flexibility helps in catering to various brewing methods, from fine grinds for espresso to coarser settings for French press or pour-over brewing.

Moreover, the Grindmaster MG236-2B and similar models are designed to minimize noise during operation, which is a crucial feature for maintaining a pleasant atmosphere in customer-facing environments.

In addition to these personal features, the Grindmaster lineup also emphasizes energy efficiency. The machines are designed to consume minimal power without compromising performance, making them a cost-effective choice for businesses aiming at sustainability.

Overall, the Grindmaster MG236-2B, MG23-2B, G236-2B, G23-2B, and MG235-2B models represent cutting-edge technology in coffee grinding. Their combination of consistency, durability, user-friendliness, and energy efficiency makes them ideal for any coffee-centric business looking to elevate their brewing game and provide an exceptional coffee experience for their customers.
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