McDonald’s Vertical Toaster

View inside cabinet Relays Drive Train Motor with fan in place. Plate heater

Here’s a look at the cabinetry of the toaster. The running gear is accessible from the controller side. The motor is accessed by removing the bottom of the unit.

The motor is its cavity under the heater plate.

The motor is properly positioned when its mounting bolts are pushed to the right.

The first step in disassembling the conveyor assembly is removal of the cover. Belts are next.

The platen back can then be removed.

Gain access to the platen by removing this plate.

The upper rollers, which rest on spring loaded plungers, are easily removed.

Springs in place for a short upper folder.

The axle for the rear roller must be removed from the controller side of the toaster.

With the axle removed, the rear roller lifts out.

The lower rollers drive the conveyor belts, pulling buns through the toaster.

The platen can be displaced enough to all new springs to be put in place.

Here’s a look at the drive train with the vertical support in the cabinet removed.

Chain alignment is critical in the toaster.

Chain tension is also very important. The chain shouldn’t be too tight.

Improper chain tension can lead to odd wear patterns on sprockets. The sprocket at right shows deep valleys between teeth and a sawtooth-like curvature. The sprocket on left is new.

Later toasters have a bushing brace to prevent bushings from being cut.

The latest toasters also have a crumb barrier at the top of the cabinet.

Vertical Toaster Wiring Schematic