

The Bunn Brewer SURE IMMERSION 312 is a high-performance commercial coffee brewing system designed for efficiency and quality. This model features advanced brewing technology, ensuring optimal extraction and flavor, making it ideal for cafes and restaurants seeking reliable and consistent coffee service.
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Tensioning Guide
Belt-diagram
C-120 pulleys
+ 13 more
Pre-built workflows to keep your asset running smoothly.
Daily Electrical System Inspection
Replace Roller and Pulley
Install Engine B-120
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Motion Industries
Applied Industrial Technologies
Electrical Brothers
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Drive Motor
B2 Rollers
Tensioning System
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Bunn Brewer SURE IMMERSION 312
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Integrate maintenance plans directly into your work orders in MaintainX.
Brewer Filter Paper Replacement
Remove filter paper
If you are starting with a new paper roll, start here
If you are continuing with a partial roll that you cut at the top spindle, go to step 2
Install filter paper roll and then route the filter paper through the tractor drive as shown
Pull the end of the paper roll up, and over left spindle
Pull end of paper between the Brew Funnel and Brew Box
Continue paper over the top spindle, then on the left side of the middle spindle. Feed the paper in front of the pick-up (bottom) spindle with the handle
Flip the handle a quarter turn to the left
Pull the handle out as shown
1 Daily Brewer Cleaning
Wash the brewer parts
Remove and wash the drip tray and drip tray cover in a mild detergent solution. Rinse thoroughly
Wipe the lower front panel, door, and cabinet with a clean damp cloth
Rinse Tab
Selecting the RINSE tab from the CARE AND CLEANING screen will prepare the equipment for rinsing the Brew Funnel and Brew Box
Press the START button
Follow the directions shown on the screen
Once the START button has been pressed, the CARE AND CLEANING screen will show a progress bar - with the message 'Please Wait - Rinsing'
If for any reason the rinsing process needs to be halted, press the Stop button
Brewer General Cleaning
Warning: Do not use any abrasive materials for cleaning.
Cleaned the exterior surfaces with a damp cloth rinsed in mild, non-abrasive, liquid detergent?
Wiped down the exterior surfaces of the dispenser with a soft, dry cloth to maintain the luster of the finish?
Washed the stainless steel interior surfaces of the dispenser with warm, soapy water and rinsed with warm, clear water?
If the water is hard, did you wipe the dispenser using a dry soft cloth, to prevent spotting?
Sign off on the Brewer General Cleaning
1 Weekly Brewer Touch Panel Cleaning
Warning: Ensure the machine is turned off before starting the cleaning process
Have the provided cloth ready
Press the START button
The touch panel is deactivated for 15 seconds for cleaning
Clean the touch panel during the countdown
Machine resets and returns to the main selection screen
Sign off on the touch panel cleaning
1 Weekly Brewer Mixing Chamber Cleaning
Clean Mixing Chamber Parts
Remove the powder mixing chambers, steam traps, frothers and mixing chamber bases
Remove the dispense hoses from the dispense nozzle assembly
Clean all parts removed in warm soapy water. Use the provided cleaning brush (PN 26367.0000) to clean bores and orifices. Rinse in cold water
Prepare one-gallon (3.8 liter) of sanitizing solution with at least 100 ppm of available chlorine in 120°F (48.9°C) water. Soak all cleaned parts in sanitizing solution for 5 minutes, then allow to air dry
Rinse cleaning brush, dip in sanitizing solution, and brush the bore of dispense nozzles
NOTE: Repeat this procedure for each nozzle separately
When reassembling parts, be sure to align arrow on frother disk with flat on whipper motor shaft, and rotate tab on whipper base clock wise to the vertical position to lock mixing chamber
Close the front door to resume normal operation
Access the parts list for your equipment in MaintainX.
Tablet
42933.0002
Door and Bean Hopper Key
52444.0020
Filter
50766.0001
Paper Roll
50766.0001
Cartridge
56000.0101
Tablet
42933.0002
Door and Bean Hopper Key
52444.0020
Filter
50766.0001
Paper Roll
50766.0001
Cartridge
56000.0101
Tablet
42933.0002
Door and Bean Hopper Key
52444.0020
Filter
50766.0001
Paper Roll
50766.0001
Cartridge
56000.0101
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