Nor-Lake envIro-lIne - Manual (Page 35)

© 2013 Nor-Lake, Inc 07/13 Rev. F 132617 33
W
alk
-i
n
m
ainTenance
dOOR CLOSER
The door closer was
factory-installed and
tested for proper operation
before shipment. This
small, but powerful
device provides smooth
and positive closing
with only a minimum of
attention. No lubrication
of any kind is required.
It is recommended that, at
least once each month, the relationship of the hook and roller to each
other be examined.
To become familiar with the various components of the closer, see
photo of a closer properly engaged when the walk-in door is closed.
Since the door closer in itself is literally non-adjustable, any
adjustment that becomes necessary must be accomplished at the
closer hook.
CAUTION: DO NOT ATTEMPT TO BEND THE HOOK as a means
of adjustment. The hook is formed and tempered to resist deformation
during normal use.
ROLLER IS TOO LOW: Loosen all hook bracket screws and add flat
washer(s) between the bracket and the header where the TOP two
screws will keep them in place. Tighten the screws and check the
hook position.
ROLLER IS TOO HIGH: Loosen all hook bracket screws and add
washer(s) between the bracket and the header where the BOTTOM
two screws will keep them in place. Tighten the screws and check the
hook position.
If, for any reason, the roller arm is accidentally bumped into a vertical
position while the door is open, IT MUST BE MANUALLY MOVED TO
THE HORIZONTAL POSITION before the door is closed. Failure to do
so may cause serious damage to the door and/or the door closer.
Correct with Door Closed
Roller Too Low
Correct with Door Open
Roller Too High
A warning label is affixed to the door
section as a reminder.