Do I need guide flange for the front (roll loading side) and rear? Most commonly only a rear guide flange is used. Some rolls of material are very delicate and /or loosely wound and / or very narrow therefore they must be contained between a front and rear guide flan
How do core chucks & core shafts work? All core chucks & core shafts rely on the same principle of expanding to create friction between the core and the gripping device (core chuck). The core chucks are expanded either by compressed air vi
How do guide flanges mount to the chuck? Front (roll loading side):
Removable / Adjustable: The guide flange is mounted to a locking collar which clamps to the core chuck. Normally it is best to lock to the non- expanding / non-gripping p
How do I deflate an air chuck or air shaft? Manually:
A-1360 air valve is deflated by pressing A-1404 air gun partially down.
A-1597 air valve may be deflated by pushing with finger.
Automatically:
Air inflating switch assembly is d
How do I inflate an air chuck or air shaft? Manually
A-1360 air valve is actuated by pressing on the valve with the A-1404 air gun
A-1597 air valve is actuated by pushing the rubber tip against the valve, squeezing the handle and quickly
How Do I Send a Part for repair? Repairs
Core Chucks and Shafts JRC Web Accessories offers two different factory repair services to keep your core chucks and shafts running smoothly.
Factory Repair:
How Do I use oversize cores with a JRC Mechanical Chuck?
JRC QUICK LOCKING MECHANICAL CHUCK
Adding Shims to accommodate oversize cores
Please refer to drawing # B-3173
1. With Phillips head screwdriver, remove flat head screws in retainer-gripp
How wide of a roller should I choose? Face width should be at least 1” greater than the maximum web width. This allows for some wander and misalignment.
