Hussmann R3HV-ND-B Installation & Operation Manual page 8

Strategies for correcting Glass bounce and opening overlap problems
Adjust hinges FRONT – BACK.
Adjustments
Before calling for service if something seems wrong, check the following:
1. Inspect the gap between the glass panels
A.If pinched at the top: Gap is more narrow at the top than at the bottom.
Correct UNEVEN GAP and opening overlap problems by Vertically adjusting the hinge(s) to even the gap
Adjust center hinge (Outer hinges stationary) As this diagram indicates, raising the middle hinge draws
the bottom edges closer together. Whereas lowering the hinge widens the gap. (See Vertical Adjustment
on page 8)
B. If pinched at the bottom: Gap is more narrow at the bottom than at the top.
Adjust outside hinges (Center hinge stationary). This diagram indicates that raising the outside hinges
widens the gap at the bottom; whereas, lowering the outside hinges will draw the bottom edges closer
together.
(See Vertical Adjustment on page 8).
Which hinge(s) should I adjust fi rst?
In most cases the center hinge is the fi rst candidate, but if it cannot be adjusted because, either the
adjustment screw is "maxed" out or no additional shims can be added or removed, then obviously the outer
hinges must be adjusted
2. Check closing action of the glass panel
Test each panel by gently pushing it to close. Does the glass panel bounce or wobble as it closes?
A glass panel that does not close smoothly and neatly, most likely is misaligned with the front edge of the glass and
the surface or edge which it closes upon. Refer to diagram below.
Installation (Cont'd)
Top edges of glass (hinge side)
Hinge
Hardware
Bottom edges of glass
8