12
(2) Confirm that the installation gasket is
attached to the PL unit and then place the
PL unit into the panel from the front.
• It is strongly recommended that you
use the installation gasket, since it
absorbs vibration in addition to repel-
ling water.
For the procedure for attaching the
installation gasket, refer to “PL3000
Series Hardware Manual”.
(3) Insert each fastener’s hook into the slot
and tighten it with a screwdriver. Tighten
the 12 screws gradually in an even, criss-
cross pattern.
• Tightening the screws with too much
force can damage the PL unit.
• The torque required to tighten these
screws is 0.8 N•m.
PL
X
Y
Panel
thickness
PL-3900T
Series
419.5
[16.52
]
352.5
[13.88
]
1.6[0.06] to
10.0[0.39]
PL
X
Unit:mm[in.]
Y
Under
4-R3[0.12]
Panel
thickness
+1
- 0
+0.04
-0
+1
- 0
+0.04
-0
Insertion
Slots
Panel
Hook
PL
Installation Fastener
Tighten against
the board.