Yamaha 3-axis model, 4-axis model owner manual Installation bolt nominal length, Tightening torque

Chapter 6 PXYX

1 Installation

WARNING

Always turn the controller power OFF before installing the robot. Serious accidents might occur if the robot starts to operate during installation.

To install the PXYX robot, tap holes into the installation base and secure the robot to the base with M4 bolts from the inside of the robot.

1-1 Installation bolt types

•Use the following type of installation bolt.

Hexagon socket head Cap screw M4 Strength 8.8T

1-2 Installation bolt nominal length

!CAUTION

Do not use washers or spring washers with the tightening bolt.

The bolt head could interfere with the linear guide's bearings and be damaged.

If the installation base is made of steel, secure 1D or more (4mm or more for M4) for the screw fitting length. When using aluminum, secure 1.5D or more (6mm or more for M4). The rail thickness is 5mm. (Refer to Fig. 6-1.)

Recommended nominal length
When installation base is made of steel		10mm or more
When installation base is made of aluminum		12mm or more
	φ8

4.5	9.5
φ4.5

(42)

Fig. 6-1

1-3 Tightening torque

• The accurate tightening torque will differ according to the seating face fric- tional coefficient and the female screw material, etc. The following tightening torque is recommended as a guide.

Recommended torque 2.9N·m to 4.4N·m (30kgf·cm to 45kgf·cm)

6-1