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Installation (continued)
„ When mounting to a reinforced ceiling with wood screws
„
Wood screw with nominal
diameter of 3.1 mm (1/8")
A: Mounting holes for wood screws with
nominal diameter of 3.1 mm (1/8")
1) Drill mounting holes in reference to "Mounting hole dimensions" ( page 10).
z There are two installation methods for choice.
A: This method uses 4 wood screws (3.1 mm (1/8")) to fix the attachment plate.
B: This method uses 4 wood screws (4.1 mm (5/32")) to fix the attachment plate.
Depending on the reinforcement type, use method A (4 holes) or B (4 holes) accordingly.
z Add marks to the wood screw installation positions (4 holes) on the ceiling.
2) Mount the attachment plate to the ceiling.
z According to the selected method as described above, use commercially available wood screws with a
nominal diameter of 4.1 mm (5/32") or 3.1 mm (1/8") to secure the attachment plate.
z If the ceiling board of the installation location is not strong enough, the product may fall and subject to
damages. Do give consideration to the safety factor and provide sufficient reinforcement.
z For the ceiling with reinforcement, ensure there is thread engagement of at least 20 mm (25/32") in the
ceiling reinforcement member.
3) Install the falling prevention wire to the ceiling.
z The falling prevention wire is secured to the attachment plate with tape.
z Rip off the tape and use a commercially available wood screw with a nominal diameter of 4.1 mm (5/32")
to secure the free end of the falling prevention wire to the ceiling through the larger circular hole on the
attachment plate.
Attention
z When installing the attachment plate to the ceiling with wood screws, make sure the falling prevention wire is
installed to the ceiling.
[Reference]
Wood screw pullout strength
Tree type
(Thickness of at least
20 mm (25/32ʺ))
Pine
Cedar
Cypress
Lauan
Plywood
Laminated veneer
lumber
16 - ENGLISH
Wood screw with nominal
diameter of 4.1 mm (5/32")
B: Mounting holes for wood screws with
nominal diameter of 4.1 mm (5/32")
Wood screw (nominal diameter 4.1 mm (5/32")
x thread engagement 20 mm (25/32"))
Cross grain
Straight grain
1317
1114
1013
1013
1621
2127
912
1114
810
Reinforcement
Attachment plate
Wood screw with nominal
diameter of 3.1 mm (1/8")
A: Mounting holes for wood screws with
Falling prevention wire
nominal diameter of 3.1 mm (1/8")
Wood screw (nominal diameter 3.1 mm (1/8")
x thread engagement 20 mm (25/32"))
Edge
Cross grain
912
796
709
613
912
980
-
810
399
Ceiling board
Straight grain
Edge
674
551
613
429
1286
551
551
674
490
490
241
Unit (N)
-
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