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The warranty on Corbin Russwin products becomes void if the product is modified in any way, regardless of whether the modifications causes or contributes to any alleged defect. If a
Corbin Russwin product is modified it may no longer meet industry certification and quality control standards applicable to the original product and is no longer a genuine Corbin Russwin product.
Copyright © 1999-2018, ASSA ABLOY Access and Egress Hardware Group, Inc. All rights reserved. Reproduction in whole or in part without the express written permission of ASSA ABLOY Access
and Egress Hardware Group, Inc. is prohibited. Patent pending and/or patent www.assaabloydss.com/patents.
Cylinder Removal Instructions (Discontinued Models)
UT5200 Parts Manual
For Russwin 2100/2800 Series Only (1904-1968) Vertical Keyway
Tools needed:
1/8” and 1/4” flat blade screwdrivers, needle nose pliers and a plastic or rawhide mallet.
Caution!
No replacement parts are available for this lock. Be very careful not to damage or distort any parts.
1. Remove thru-bolt and remove all
escutcheon screws on both sides of
door. Pull lock from edge of door.
If your only task if to fit keys, further
disassembly may not be required.
If cylinder had never been rekeyed,
look through slots in knob shank for
original key bitting stamped on square
tail piece. Refer to Corbin Russwin
Cylinder Manual for bitting prefix and
key bitting specifications.
Cylinder removal depends on hand of
lockset. If keyed knob has staked hub
visible on underside of escutcheon,
skip to step 4. If keyed knob is in
escutcheon with encased mechanism,
continue with step 2.
2. Remove screws from plate covering
mechanism under escutcheon (
NOT
cover of latch assembly
). Before
removing exposed parts, make sketch
of their orientation for reassembly.
3. Remove spring and other parts,
laying them out for reassembly.
Note orientation of bottom hub with
respect to cylinder keyway for proper
handing upon reassembly.
4. Carefully pry staked hub from base
of knob shank. If hub bends, lock
will not operate smoothly when
reassembled. Also, some knobs
are cast iron and staked area may
break. Proceed with caution. Upon
reassembly, tap hub back into place
with plastic or rawhide mallet. If one
is not available, use heavy screwdriver
handle.
5. Using two screwdrivers gently pry
retainer ring from around knob shank
and remove it. Do not allow wire to
become bent or distorted.
6. With small screwdriver, disengage
three arc-shaped retainers from
around knob shank and remove
knob assembly from escutcheon.
7. Remove cap from back of knob. If
stuck, rap end of knob shank (
not
cap!
) with a plastic mallet to jar cap
loose. If it has become sealed in place
by paint or brass polish, it may be
necessary to pry it loose with small
screwdriver.
8. Remove two shank screws which are
now exposed.
9. Unscrew shank from knob and
remove cylinder. If shank is stuck, rap
area with plastic mallet to jar loose. If
this fails, knob may be held snugly in
vise with protective cloth. However,
remember iron knobs can crack or
break and brass knobs may become
distorted if abused.
For early models with square shank
base, use adjustable wrench for extra
leverage to unscrew shank. Before
applying extreme force to stuck
shank, soak assembly in penetrating
oil or use ultra-sonic cleaner and rap
again with plastic mallet.
On reassembly, be sure screw holes
in knob shank align with knob base
before reinstalling screws.
10. If cylinder must be dismantled, drive
out tailpiece retaining pin. This pin
also serves as plug retainer. LEAVE
KEYS OUT of cylinder until you are
ready to rekey it.
Caution: If you are rekeying several
of these cylinders, keep all major
components of each cylinder
together. Mixing parts may result in
end play of plug, making it necessary
to “pinch” key to remove it.
Use .522 diameter plug follower.
Refer to Corbin Russwin Cylinder
Manual for cylinder combinating
instructions, including all pin lengths
and key bitting specifications.
11. Clean all parts, including inside of
knob shank hole in escutcheon, and
reverse these steps for reassembly.
Use only dry powdered graphite to
lubricate cylinder. Lubricate lockset
parts as required.
Exposed Mechanism on Top of Lockset
