Midwest Shorty Single Speed Motor

To Next Page

Midwest Shorty Single Speed Motor

The Midwest Shorty single speed motor has been in existence for many years. It is a

durable handpiece and has a speed range of 0 – 5000 rpm. It has replaced the Midwest

Tru-Torc and you will come across them quite often in the field. Many aftermarket

replacement parts exist for this handpiece. As always, try to determine the problem

before disassembling the handpiece.

Some of the most common problems and solutions are addressed in the Midwest Tru-

Torc and Shorty troubleshooting guide immediately preceding this section.

Sub Assembly A & B Disassembly

STEP 1

Remove the front sheath housing. Do this by

placing it in a 3/4”collet. All the threads on this

handpiece are regular thread, so turn

counterclockwise to remove.

STEP 2

Lock the drive housing of the handpiece into a 61/64” collet. Loosen the

upper turbine housing by hand and remove. Remove any spacer

washer(s) and keep them in a safe place.

Sub Assembly A Disassembly (Nose Section)

STEP 3

Reach under the drive plate with a flat thin screwdriver. Pry the plate

up. This will expose the three wide drive rings. Place them along side

the drive plate on your work surface.

Need help?

Do you have a question about the Midwest Shorty Single Speed Motor and is the answer not in the manual?

Summary

Midwest Shorty Disassembly Procedures

Midwest Shorty Disassembly: Sub Assemblies A & B

Disassemble Sub Assembly A & B by removing front sheath housing, locking drive housing, and prying drive plate.

Midwest Shorty Disassembly: Nose Section

Disassemble nose section: remove spindle bolt, sheath housing, replace latch, and clean parts.

Midwest Shorty Disassembly: Motor Housing

Disassemble motor housing: remove allen screw, raceway, vent plug, and bearings.

Midwest Shorty Reassembly Procedures

Midwest Shorty Reassembly: Motor Section

Reassemble motor section: install bearings, spindle, impeller, o-ring, and vent plug.

Midwest Shorty Reassembly: Housing and Nose

Reassemble motor housing, raceway, drive rings, nose piece, and align/thread halves.

Midwest Shorty Reassembly: Final Tightening

Firmly tighten assemblies by placing sheath housing into a collet and turning clockwise.