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
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,
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
Clean condenser.
Check condition of bowl gasket and replace if necessary. Replace all
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
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
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
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 | Page 15 |
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