Grindmaster G & MG Series instruction manual Crathco Granita Preventive, Maintenance PM, Instead

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Crathco Granita Preventive

Model # ___________________________

Maintenance (PM)

Serial # ____________________________

Date: ______________________________

Checklist for Kit 90104 -

PM by _____________________________

Serial # 11258 and below*

Of Company ________________________

(If unit has been converted to unhardened

Store Name/# ______________________

stainless shaft system, then use kit #90566

Address ___________________________

instead. )

__________________________________

 

 

Store Mgr Name ____________________

 

Signature __________________________

A preventive maintenance visit should be performed every 3

months. Failure to complete PM’s every 3 months is considered abuse of the machine, and therefore voids the war- ranty. Proof of PM must be documented with Grindmaster Corporation to maintain warranty coverage. To document your PM, complete this form with signatures, place used/worn parts that were replaced during the PM inside enve- lope, and mail to Grindmaster Corporation. Parts returned should include 2 spindle bushing evaporator seals, 2 rub- ber bell shaped shaft seals, valve o-rings and shafts (if applicable).

The following procedures should be performed during a Preventative Maintenance visit, using PM kit # 90104:

Document model and serial number of equipment and record above.

Check product temperature and consistency for proper setting - adjust if necessary.

Insure product is being mixed properly and is within specification (check and document brix - most products should be around 13% - refer to product manufacturer’s recommendations for exact recommended brix). Record Brix reading here: Left Bowl _____ Right Bowl _____

Check for leaks at gaskets, o-rings, front shaft seal, etc. Empty product from bowls.

Disassemble unit completely.

Clean and sanitize all disassembled parts. Clean and sanitize top tray and freezing barrel.

Clean out condensation tube with sanitizer and long brush. Check condition of all panels, bowls, lids - replace if necessary.

Check mixing rods and augers for wear, check mixing rod bearing for wear - replace if necessary. Check for bowl knobs (two per bowl to lock down bowl in front) - replace if necessary.

Check operation of lights in lid and rear of unit (if equipped) - replace light bulbs if necessary.

Clean re-usable air filter if so equipped (standard on G & MG models, optional on ID models). Check condition of filter and replace if necessary.

Clean condenser.

Check condition of bowl gasket and replace if necessary. Replace all o-rings on dispense valves and lubricate.

Check drive shaft. If surface is not smooth or the drive shaft is not secure (excessive movement in and out) use PM kit #90110, or 90110B in place of 90104 above.

Replace spindle bushing seal in front of evaporator using extraction tool.

Replace bell shaped rubber shaft seal on front of freezing barrel (generously lubricate inside seal)

Lubricate parts where appropriate (dispense valve o-rings, inside of shaft seal, inner rim of bowl where it meets with the bowl seal)

Re-assemble unit and refill with product

Verify and document defrost timer setting and operation and time of day setting and adjust if necessary. Check thermostat setting on ID and MG models. Thermostat setting should be between 1-1/2 and 2. Verify compressor operation and freezer controller operation.

Verify ventilation is adequate (8” on both sides and back). Check electrical connections and wiring.

Check fan operation (1 condenser fan and 2 gear motor fans) and clean fan or blades if necessary. Review proper periodic care and cleaning instructions (disassembly, cleaning, sanitizing, lubrication and

re-assembly) with store personnel. Review proper product mixing and handling instructions with store personnel. Demonstrate and train store personnel to follow proper procedures (stress importance of store level

maintenance such as lubrication and filter cleaning).

Make sure store personnel have appropriate supplies (lubricant and sanitizer) to care for machine.

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 SupplyProgramming G Series Electronic Touchpad Models Preparing ProductOperating Panel Operating Panel -Electronic TouchpadModel G23-2B Electronic Touchpad Setting Defrost Timer Night SettingOperate in Manual Mode without Defrost Timer Activated Operate in Automatic Mode with Defrost Timer ActivatedTo obtain cold night/defrost drinks Stand-by mode settingDefrost Timer Operating Instructions To obtain a slushAdjustments Consistency AdjustmentDispensing Product Daily Cleaning Cleaning and Sanitizing ProceduresRectly positioned Cleaning and Sanitizing Procedures con’tRemoving and cleaning the filter Weekly MaintenanceLid Lights Maintenance con’tCleaning the Condenser Monthly Replacing the Lightbulbs As NeededTo Replace Spindle Bushing Seal Maintenance Bell Shaped SealRing Maintenance Spindle Bushing SealChecklist for Kit Serial # 11259 and above Crathco Granita Preventive Maintenance PMStainless shaft system, then use kit #90566 Maintenance PMCrathco Granita Preventive If unit has been converted to unhardenedAccessories not included Security Kit InstallationAutofills 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

G & MG Series specifications

Grindmaster G & MG Series showcases a remarkable innovation in the world of coffee grinding technology, blending efficiency, durability, and performance to meet the needs of coffee enthusiasts and professionals alike. These grinders are designed to deliver a superior grinding experience, ensuring that every bean is ground to perfection.

One of the standout features of the Grindmaster G & MG Series is its grinding consistency. Utilizing advanced burr grinding technology, these machines maintain an even grind size, essential for achieving the ideal flavor extraction in every brew. The series includes both flat and conical burr options, allowing users to select the type that best matches their brewing method. This versatility is critical for accommodating a range of coffee styles, from espresso to French press.

Another key characteristic of the G & MG Series is its user-friendly interface. Featuring intuitive controls and clear display options, operators can easily adjust grind settings to achieve their desired consistency. The timers and dosing controls enable precise measurements, ensuring that every cup is brewed with the exact amount of coffee needed for optimal taste.

Durability is a hallmark of the Grindmaster brand, and this series is no exception. Built with robust materials, the G & MG Series is designed to withstand the demands of high-volume coffee environments, such as cafes and restaurants. The components are engineered for longevity, minimizing maintenance downtime and ensuring that the grinder remains a reliable tool in any setting.

Furthermore, the Grindmaster G & MG Series integrates innovative technologies to enhance user experience. The models are equipped with noise-reducing features, making them suitable for environments where quiet operation is essential. Additionally, some models in the series offer advanced thermal stability technology, which helps maintain consistent performance without overheating.

In terms of design, the G & MG Series showcases a sleek, modern aesthetic that fits seamlessly into any café or kitchen decor. The grinders are available in various colors and finishes, allowing business owners to choose a look that aligns with their brand identity.

In conclusion, the Grindmaster G & MG Series stands out as a top choice for coffee grinding, combining advanced technology, user-friendly features, and robust construction. Whether for home use or commercial applications, these grinders provide an exceptional grinding experience, ultimately elevating the quality of coffee served.
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