Prostar Hoist- Brake Parts

Lightweight, quiet and portable: The CM Prostar electric chain motor with robust features is designed and built for the unique rigging needs encountered at small venues like theatres, hotels, exhibitions, and conferences.

Prior to each lift operation, please check brake function by tensioning the hoist. 
Prostar Hoist Brake Parts
KEY # PART # DESCRIPTION QTY
620-116 20419 Brake Base Plate 1
620-117 20698 Brake Disc 1
620-118 20420 Brake Armature 1
620-122 20659 Brake Field (Includes Brake Coil) - 115V, Single Phase 1
  20658 Brake Field (Includes Brake Coil) - 220V, 380V, 415V & 460V, 3 Phase 1
  20629 Brake Field (Includes Brake Coil) - 575V 3 Phase 1
620-123 20887 Brake Spring 1
620-124 920740 Brake Screw 4
620-132 20345 Brake End Cover 1
620-133 920715 Brake End Cover Screw (Hoists w/o Contactor) 3
  20957 Brake End Cover Screw (Hoists w/ Contactor) 3
620-136 920720 Frame Pin 4
620-150 20779 Power Cord Grommet 1
620-169 20762 Capacity Warning Label (250 lbs) 1
  20737 Capacity Warning Label (300 lbs) 1
  20763 Capacity Warning Label (500 lbs) 1
  20738 Capacity Warning Label (600 lbs) 1
  20884 Capacity Warning Label (1000 lbs) 1
620-171 24842 Warning Label 2
620-193 20723 Brake Spacer 1

Brake Gap Inspection

The brake is non-adjustable with a nominal .004 inch (0.102 mm) air gap.

  • The brake disc must be replaced when the air gap reaches .012 inch (0.305 mm).
  • The brake spacer should be no more than .012 inch (0.305 mm) thicker than the combined thickness of the brake disc and armature plate
To inspect the brake gap, please disconnect the hoist from power and remove brake end cover (620-132). Then, please read and follow the instructions on Prostar Hoist User Manual p.9.