Series YB2
Panel Seal Pushbuttons
D129
Indicators
AccessoriesSupplement Tactiles KeylocksRotaries Pushbuttons
D
Illuminated PBSlides Programmable
Toggles
Rockers
Touch
Tilt
www.nkkswitches.com
ASSEMBLY INSTRUCTIONS FOR SQUARE
1. Remove knurled
mounting nut.
2. Remove bezel
and blue o-ring
from housing.
4. Align tabs (B) on both
sides of actuator with
the projections (A) inside
of the housing and push
actuator firmly down to
snap in.
5. Install the blue o-ring
which was removed
in step 2 at the inside
bottom of the bezel.
6. Align tab inside of the bezel with keyway on housing and
bring bezel back into its original position.
7. Before installing into
panel, make sure that
the square gasket is
present at the back of
the bezel. Align keyway
on bezel with tab in
panel and push switch
all the way into the
panel.
8. Attach mounting nut behind panel and tighten. Make
sure that bezel and actuator fit properly and that there is
no space between bezel and panel. Do not overtighten.
Mounting torque: 0.785Nm (6.95 lb•in) maximum.
Optional socket wrench AT106 available.
3. Install LED.
LEDs
AT634 & AT636
LED AT628
LEDs AT625G,
AT631B,
AT632F
Align D-flat on LED with Part Number
on switch for appropriate polarity and
insert LED into base.
Align D-flat on LED with Part Number
on switch for appropriate polarity and
insert LED into base.
Part Number
This Side
Cathode
Socket (–)
Anode
Socket (+)
(–)
)
D-Fla
)
D-Fla
The larger metal part within the LED
represents the cathode (–). Align LED
for appropriate polarity and insert LED
into base.
ATTENTION
ELECTROSTATIC
SENSITIVE DEVICES
ATTENTION
ELECTROSTATIC
SENSITIVE DEVICES
AT106 Socket Wrench
Knurled
Mounting Nut
Spacer
Bezel
Blue O-ring
Actuator
B
Housing
A
Blue O-ring
Bezel
Keyway
Tab
Housing
Bezel
Blue O-ring
Panel
Back of
Bezel
Bezel
Actuator
Knurled
Mounting Nut
Panel
Bezel
Spacer