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Required

Required

Caution about installation

Make sure that the product has no backlash after the installation is complete.

If the product has backlash, it could come off or the wall could collapse, which could result in user’s fall and 
injury. 

Use the supplied wall-mounting screws (truss head tapping screw 

φ

4 x 35) for installation.

Failure to do so could cause the installed product to be unstable and drop, which could result in injury. 

If the product has backlash during use, stop using it immediately and contact the 
installation service shop, sales shop to receive inspection.

Failure to do so could cause the product to drop and a user to fall, which could lead to injury or serious 
accident. 

Use a plywood sheet that is 12 mm or more in thickness on the mounting surface.

Failure to do so could cause the installed product to be unstable and drop, which could result in injury. 

When the mounting surface is a thin wall, mount a reinforcing wooden block that is 30 mm or 
more in thickness before installation.

Failure to do so could cause the installed product to be unstable and drop, which could result in injury. 

When installing the product on a partition wall, place a reinforcing wooden block of 30 mm or 
more in thickness in the tapping-screw-fixing position.

Failure to do so could cause the installed product to be unstable and drop, which could result in injury. 

When the mounting surface is a tile or concrete wall, use a commercially available plugs for 
concrete, etc.

Failure to do so could cause the installed product to be unstable and drop, which could result in injury. 

Do not hook heavy things other than luggage on it.

Doing so could cause the installed product to be unstable and drop, which could result in injury. 

Caution about use

Do not hang from or lean on the parts of the product.

Doing so could cause the installed product to be unstable and drop, which could result in injury. 

Prohibit

Instruction manual

Safety Precautions 

(Be sure to observe these instructions.)

 The following symbols are used to classify and 

explain instruction that must be followed. 

Please read these “Safety Precautions” carefully before use, and use the product correctly.

The       symbol indicates something 

that is “Prohibited.”

The symbol on the left indicates “Do 

not disassemble.” 

The       symbol indicates something 

that “Must be implemented.” 

The symbol on the left indicates 

“Required.” 

Meaning

Symbol

Single Hook/Doorstop Hook/

Double Hook

YKH20R

YKH21R

YKH21WR

Do not disassemble or modify items other than those described in this manual.

Doing so could damage the product and may result in injury. 

Do not

disassemble

 Request to the contractor

Please install the product correctly in accordance with the 

instructions in this instruction manual.

After installation, enter your shop name and the date of 

installation in the warranty, and then be sure to hand over this 

instruction manual to the customer.

 Request to the customer

Please read this instruction manual carefully and use the 

product correctly.

As this instruction manual contains a warranty, please keep it 

carefully. 

 After reading, keep this instruction manual in a place where users can 

read it anytime. 

 This instruction manual shows various symbols to correctly and safely 

use the product in order to prevent harm to you and other people, and 
damage to property. The meanings of those symbols are as follows: 

CAUTION

When this appears next a topic, this indicates that 
ignoring this symbol and mishandling the product 
could result in injury or property damage alone. 

CAUTION

CAUTION

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