Maguire Weigh Scale Blender WSB-440R

Adjust the weigh bin dump valve to close softly

Locate and adjust the needle valve for a soft close

Check for wear at the hinge points

Is the dump flap overlapping the forward edge enough to prevent dribble when closed?

Is there enough space at the rear of the flap to allow for static build up of pellets without interfering with the closing of the flap?

Pneumatic and Electrical Lockout/Tagout (LOTO)

Ensure blender is pneumatically and electrically locked out

Disconnect compressed air supply

Is the pneumatic valve actuator manually operated?

Use lockout/tagout valve for pneumatic lockout/tagout if applicable

Disconnect blender from air supply if directly connected

Manually dissipate stored/residual energy from pneumatic system

Is the blender equipped with an electrical LOTO box?

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 detected with the weigh bin or hanging bracket?

Describe any interference detected and corrective actions taken

Enter the current air pressure reading

Select the recommended air pressure for the model

Is the air pressure set correctly for the model?

Inspect the pneumatic system for the following issues

Is the coalescing filter functioning properly?

Is the air supply clean and dry?

Is the air supply non-lubricated?

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