Maguire Weigh Scale Blender WSB-220

Verify the load cell cable is plugged into the side of the controller.

Confirm the weigh bin is resting freely on the load cells without contact with surrounding objects.

Check the air line to the weigh bin’s dump valve is connected as during normal operation.

Ensure the load cells and bin are not jammed; a light touch should change the display and return to original reading when removed.

Is *47 disabled for WSD calibration?

Perform zero weight calibration routine.

Examine Weigh Bin and Hanging Bracket

Ensure no contact with windows or guards

Is there free space on all sides of the weigh bin?

Press down lightly on the weigh bin and note the change in weight readout

Remove touch and verify the weight returns to original reading +/- 1 gram

Was any interference with the weigh bin or hanging bracket detected?

Describe any interference detected and corrective actions taken

Enter the current air pressure reading

Is the air pressure approximately 5.5 bar (80 psi) for most models?

Is the air pressure 4.1 bar (60 psi) for Micro Blender, 140R, 240R, and 440R?

Inspect the following for proper condition

Is the coalescing filter functioning properly?

Is the air supply clean and dry?

Is the air supply non-lubricated?

Pneumatic and Electrical Lockout/Tagout (LOTO)

Pneumatically lockout the blender

Electrically lockout the blender

Pneumatic Lockout/Tagout Points

Dissipate stored/residual energy from the pneumatic system using the Manual Operations screen

Electrical Lockout/Tagout Points

Material Removal and Cleaning Preparation

Evacuate material from blender using clean-out drain tubes and/or drain chutes

Test slide valve movement during LOTO without air pressure

Do slide valves open and close freely, quickly, and completely?

Check for wear on the slide valve guide rods

Check cylinder clevis adjustment for correct closing of the valve

Does the valve close just enough to block the hole, but no further?

Check the clevis pin connecting the air cylinder for wear

Inspect mix blades for damage or wear