ND-Series Service Manual

8 • Schlage • ND-Series service manual
Lock assembly drawing index
Function ANSI A156.2, 1996, Series 4000, Grade 1 Trim Chassis
Schlage ANSI Description Outside function Inside function Page Page
ND66 F91 Store lock*† Key locks or unlocks
both levers
simultaneously.
Key locks or unlocks both
levers simultaneously.
68 26
ND70 F84 Classroom lock* Outside lever locked or
unlocked by key.
Inside lever is always
unlocked and always free
for immediate egress.
69 27
ND70 x 80 Classroom by
Storeroom lock†
per XN12-006
Outside lever locked or
unlocked by key.
Key in fixed inside lever
retracts latch.
70 28
ND72 Communicating
lock*† per
XN12-002
Outside lever only locked
or unlocked by key.
Inside lever only locked or
unlocked by key.
71 29
ND72 Communicating
lock with
Vandlgard
®
*† per
XN12-003
Same as ND72.
Vandlgard allows
outside spindle to
disengage from latch
when locked.
Same as ND72.
Vandlgard allows inside
spindle to disengage from
latch when locked.
72 30
ND73 F90 Corridor lock* Locked or unlocked by
outside key. When
locked by key it can only
be unlocked by key.
Push-button locks outside
lever. Turning lever or
closing door releases
button. Inside lever is
always unlocked and is
always free for immediate
egress.
73 31
ND75 Classroom security
lock*
Outside lever locked or
unlocked by key in either
lever.
Key locks or unlocks
outside lever. Inside lever is
always unlocked and is
always free for immediate
egress.
74 32
ND80 F86 Storeroom lock* Lever is fixed. Entrance
by key only.
Inside lever is always
unlocked and is always
free for immediate egress.
75 33
ND80-RX Storeroom lock*
with request to exit
Same as ND80. Same as ND80. A
microswitch attached to
the chassis is activated
when the lever is rotated.
The switch signals use of
the lever to security
systems allowing
non-disruptive egress.
76 34
ND80EL Storeroom
lock—electrically
locked (fail safe)*
Lever is continuously
locked electrically.
Unlocked by switch or
power failure. When
locked, key retracts
latch.
Inside lever is always
unlocked and is always
free for immediate egress.
77 35
Note: Any function with a deadlatch locks the latchbolt when door is closed. See page 5 for identification.
* Available with Small Format Interchangeable Core.
† Caution: These locks on residences and any door in any structure which is used for egress are a life safety hazard in times of emergency and their use is
not recommended. Installation should be in accordance with existing codes only.