Planned Maintenance
System: Maintenance
Requirement Card
MRC)
Pictures and additional
information:
Corresponding Chapter of
Equipment Manual
When
Semi-Annually
Tools
Clean, sanitized towels
Flat blade screwdriver
Phillips screwdriver
AFD-280/U manual
Arch Fry Dispenser
Automated Equipment LLC.
Model AFD-280/U
Precaution
Hazard Communication Standard (HCS) - The procedure(s) in this manual include the
use of chemical products. These chemical products will be highlighted with italic-faced
letters followed by the abbreviation (HCS). See Hazard Communication Standard (HCS)
manual for the appropriate Material Safety Data Sheet(s)
Planned Maintenance
1. Turn the Dispenser Power Switch to the OFF Position.
2. Unplug the dispenser Power Cord from the Wall.
3. Remove the hopper from the dispenser, and clean the dispenser (refer to the Daily Closing
procedure). Reassemble the dispenser WITHOUT the hopper.
4. Inspect the hopper and drum for damage.
5. Remove and inspect the lift saddle for bent or loose roller shoulder screws. Inspect the lift
saddle for loose flat head screws. Note: Loctite should be used on all of these screws.
6. Remove and inspect the upper and lower guides for worn or broken guide slides. Inspect for
loose guide slide screws.
7. Remove the BACK PANEL of the Dispenser.
8. Locate the Pressure Relief Valve on the top of the Air Reservoir. Release the pressure from
the Air Reservoir by pulling UP on the ring. Hold the ring until the hissing stops.
9. Remove the water trap bowl and inspect:
Black metal water trap bowls: unscrew to the left, it may be very tight, DO NOT USE
PLIERS AS IT WILL DAMAGE THE WATER TRAP BOWL.
Clear plastic water trap bowls: Remove the water trap bowl shield from the Filter Regulator.
Press in the Locking Tab and rotate the Shield to the LEFT to release the Shield. Lower the
Shield to expose the water trap bowl. Unscrew the water trap bowl to the left, it may be very
tight, DO NOT USE PLIERS AS IT WILL DAMAGE THE WATER TRAP BOWL.
Inspect the contents of the water trap bowl. If the bowl is more than half full of water or if
there is an excessive amount of debris on the sides, clean the bowl with warm soapy water. If
the bowl is cracked, replacement may be required. (Schwan’s Food Service Automated
Equipment, LLC. part number 202245)
NOTE: A moderate amount of debris stuck to the walls of the bowl is normal. The
bowl may appear cloudy because of this. It is only a concern if there appears to be
enough debris to interfere with the operation of the float.
10. Reinstall the water trap bowl hand tight and the shield If applicable.
11. Remove the Compressor Intake Filter by unscrewing it.
© 2000 McDonald’s Corporation Printed in FEB 05/ Revised in FEB 05
Page 1 of 2
When
Semi-Annually
Tools
Clean, sanitized towels
Flat blade screwdriver
Phillips screwdriver
AFD-280/U manual
12. Examine the filter for contamination or being plugged. Replace a plugged filter. (Schwan’s
Food Service Automated Equipment, LLC. part number 202199)
13. Screw the intake filter back into place.
14. Plug the dispenser into the wall outlet.
WARNING: Do NOT attempt to adjust or touch any of the wiring in the cabinet while
the dispenser is plugged in.
15. Turn the Power switch to the ON position.
16. Select Function 3 on the controller and press enter, to disable the weighing cycle.
17. While the compressor is charging, listen carefully for air leaks. The compressor should
reach full charge and turn off in under three minutes.
18. Check and adjust the pressure regulator to 30psi.
19. Select Function 12 (Actuate Lift) and press the enter button on the controller. A number will
be displayed. This is the time of the last lift actuation in tenths of a second. Each time the
enter button is pressed, the lift will cycle and display the associated lift speed. The reading
should be between 22 and 26 for both the up and down spee ds. If not wi th i n this ran ge, the
lift speeds may have to be adjusted (refer to procedure in your manual).
20. Select Function 14 (Actuate Stopgate) and press enter on the controller. Each time the enter
button is pressed, the Stopgate will open or close. Observe both speeds to be approximately
1 second. Significant deviation from the 1 second speed may require adjustment of the
Stopgate speeds (refer to procedure in your manual).
21. Select Function 13 (Actuate Doors), press enter and observe the opening and closing speeds
of the Accumulator Doors. The doors should open in approximately ½ second and close in 1
second. Significant deviation from these speeds may require adjustment of the Accumulator
Door speeds (refer to procedure in your manual).
22. A 1 ½ LB. (700 gm) basket load should fill a fry basket about half full. From previous
observations, if this load is significantly off, calibrate the Load Cell (refer to procedure in
your manual).
23. Push down on the Lift Saddle, to force the dispenser into an error condition.
24. Remove any baskets that may be on the dispenser.
25. Verify that the indicator lights for the basket sensors are OFF (Lights L2 and L3 on
controller board.)
26. Place your hand directly in front of the Lift Sensor. Verify that indicator light L2 turns ON.
27. Move your hand away from the sensor until the light turns OFF, then move your hand back
toward the sensor. The light should turn back on when your hand is 4-6” away from the
sensor. If not in this range, sensor sensitivity may require adjustment (GAIN control screw
on the rear of the sensor).
28. Repeat steps 26 and 27 for the Guide Sensor. The guide sensor lights indicator light L3.
29. Select Function 18 and press enter to clear the error log.
30. Turn the power switch OFF.
31. Replace the BACK PANEL.
32. Finish reassembling the dispenser.
© 2000 McDonald’s Corporation Printed in FEB 05/ Revised in FEB 05
Page 2 of 2