Bunn ULTRA - Pre-Service Procedures

Bunn-O-Matic Corporation
29
Figure 1
Preventive Maintenance
In order to maintain proper operation and long service life BUNN recommends performing the preventive mainte-
nance every 6 months. Some of the PM items may require more frequent maintenance depending on the site condi-
tions and usage. Failure to perform these procedures may result in damaged equipment and may not be covered by
warranty.
Tools Required:
• Small & Medium standard blade screwdriver
• Medium philip screwdriver
• ¼ inch ratchet set
• Basic misc. size wrenches
• 2 Clean 5 gallon buckets
• Sponge
• Cloth or towel
• Extended bristle brush (PN: 40500.1068)
• Food grade lubricant (PN: M2550.0001 – 1 ounce Lubrilm)
• Krytox Grease (PN: 29563.0000 - .08818 oz. or M2548.1000 – Bulk oz.)
• Condenser Cleaner
• Rubber gloves
• Safety goggles or face shield
• Fin Comb
• Vacuum with brush attachment
• Mild non abrasive detergent
PM Parts
• ULTRA 1 PM Kit – PN: 34245.0002
• ULTRA 2 PM Kit – PN: 34245.0000
Prior to servicing the ULTRA:
• The ULTRA has an optional menu setting that may alert the operator when Preventive Maintenance is due by
displaying a message on the display, the message will read “Shaft Seal Maintenance Due”. The message will not
shut down the machine if the service is not performed. The technician will need to be aware to reset the menu by
answering “yes” in the “PM Complete ?” menu located in the programming section. Be aware that the menu might
be password protected. Once you answered the menu with “yes”,
the time and date is recorded for another six months to elapse.
• The ULTRA may have the optional LAF and PAF accessories
installed and will require turning off the main water supply.
• Unplug or disconnect ULTRA and/or PAF Platform from power.
• Drain hoppers of product into clean holding containers and ask
store manager to store product in a cooler or refrigerator.
• Remove hopper assemblies and ask store manager to perform the
necessary cleaning procedure of the hoppers while you perform
the preventive maintenance.
Preventive Maintenance Instructions
Step 1: Shaft Seal Maintenance ( PM Kit Required)
□ Drain, remove and clean hopper; refer to the Operating and
Service Manual for proper cleaning procedures. Discard the
hopper/drum seal and faucet seal.
□ Remove the #8 locking screws securing auger motor cover to the
cooling drum mount assembly; remove cover and set aside for
reassembly.