Univex PM91 - User Manual

Questions and Answers:

D
Derek JonesAug 4, 2025
What to do if Univex Commercial Food Equipment power unit will not operate?
- Q
  qburtonAug 4, 2025
  If the Univex Commercial Food Equipment power unit isn't operating, there are several potential causes. It could be due to burned switch contacts, in which case you should replace the switch. Another cause might be an electrical service interruption, so check the electrical service and replace the fuse or reset the circuit breaker if needed. Finally, a burned-out motor could be the culprit, requiring you to remove and replace the motor.
D
Daniel SullivanAug 15, 2025
Why is my Univex PM91 power unit running but attachment will not turn?
- M
  Matthew JonesAug 15, 2025
  If the Univex Commercial Food Equipment power unit is running but the attachment isn't turning, it might be due to a broken or slipping belt, in which case you should replace the belt. Another possible cause is a missing PTO adapter, so ensure that you install the PTO adapter.
D
davisgregoryAug 25, 2025
What to do if Univex PM91 Commercial Food Equipment attachments rattle when under power?
- D
  Dr. Ashley DoyleAug 25, 2025
  If the attachments rattle when under power for your Univex Commercial Food Equipment, you should replace and tighten the thumb screw.

Univex PM91 Specifications

General

Brand	Univex
Model	PM91
Category	Commercial Food Equipment
Language	English

Summary

Troubleshooting Guide

Power Unit Not Operating

Addresses issues where the power unit fails to operate, covering switch contacts, service, and motor failure.

Attachment Not Turning

Details causes and remedies for the power unit running but the attachment not turning, like belt issues or missing adapters.

Rattling Attachments Under Power

Explains that rattling attachments under power are usually due to a loose or missing thumb screw.

Mechanics Maintenance

Cover Removal and Reinstallation

Step-by-step guide for removing and reinstalling the unit's cover, including screw locations and handling foam strips.

Drive Belt Replacement

Instructions for disconnecting power, removing the cover, and replacing the drive belt, ensuring proper alignment.

Pulley and PTO Removal

Procedures for removing pulleys and the PTO assembly, noting potential need for a wheel puller and alignment guidance.

Motor Removal and Installation

Detailed steps for motor removal, including disconnecting wires and pulley, and installation with proper mounting and alignment.

Feet and Legs Maintenance

General guidance on removing and installing various feet and leg configurations on the unit housing.

Tub Clip Removal

Specific instructions for removing the tub clip found on the PM91 model, involving unscrewing from inside the housing.

Assembly Parts Lists

PM91 Assembly Parts List

Detailed parts list and diagram for the PM91 model assembly.

PM91 G Assembly Parts List

Detailed parts list and diagram for the PM91G model assembly.

MG8912 Assembly Parts List

Detailed parts list and diagram for the MG8912 model assembly.

VS2000 Assembly Parts List

Detailed parts list and diagram for the VS2000 model assembly.