The EDCO 77339 is the skirt corner retaining bracket for 2EC and 2GC dual-disc concrete floor grinders. It is the corner piece that holds the rubber skirt seal in place where the shroud turns, which is exactly where a skirt tends to pull loose first and start leaking dust. Contractors running dust-controlled grinding replace it when the corner will no longer hold the seal tight to the housing.
Specifications
- EDCO part number 77339, listed in EDCO's parts manual as Retaining Brkt., Skirt Corner
- Two used per machine
- Secured with 1/4-20 by 5/8 carriage bolts (EDCO 11676), which are a separate part
This part is a retaining bracket, not a rubber sealing part. The rubber seals it holds are separate items: EDCO 77141 (skirt seal, 2-1/2 by 56) and 77142 (rear skirt seal, 2-1/2 by 16). EDCO does not publish dimensions or material for the bracket, and does not state whether it is supplied singly or as a pair, so none of that is stated here.
Fits
EDCO's parts list shows 77339 as item 10 in the skirt, vacuum port and water hook-up grouping for the 2EC and 2GC dual-disc concrete floor grinders, covering SKUs 50100 (2EC-1.5HP), 51300-50 (2EC-2B/50), 50800 (2EC-3B), 51800 (2GC-5.5H), 51400 (2GC-11H) and 54800 (2GC-11P). Confirm fitment against your machine's model number before ordering.
Discount Cleaning Products is an authorized EDCO dealer with US-based support.
