PI N--472 10 Series, User Manual, Page: 25 / 57

5 Installation
N­472 Linear Actuator MP144E Version: 1.3.0 21

You have provided a suitable mechanical mounting (for dimensions of the linear
actuator see "Dimensions" (p. 45)):
− The mechanical mounting must be connected to the protective earth conductor.
− The contact surface of the mechanical mounting to the mounting nut or thread or
clamping shank of the N-472 must be electrically conductive.
−
The contact resistance at all connection points relevant for mounting the protective
earth conductor is <0.1 Ω at 25 A.
−
The contact surface of the mechanical mounting to the ball tip of the N-472 has a
roughness of R
a
<0.1 µm and a hardness of at least 500 HV.
− For models with mounting thread: An M10 × 1 through-hole is present in the
mechanical mounting.
− For models with clamping shank: There is a through-hole with a suitable diameter in
the mechanical mounting.

You have accounted for the space required to route cables without bending and
according to regulations.
Tools and accessories

Hook wrench (included in the scope of delivery (p. 12))
When lubricant is to be applied to the contact surface of the movable part of the mechanical
mounting:

Models that are not suitable for use in a vacuum: PTFE-based grease containing no
additive

Vacuum-compatible models: Vacuum-compatible PTFE-based grease containing no
additive
Installing an N­472 with mounting thread
1. Screw the mounting nut of the N-472 as far as necessary in the direction of the base
body of the N-472.
2. Optional: Apply a small amount of lubricant to the contact surface of the movable part
of the mechanical mounting.
3. Screw the N-472 as far as necessary into the M10
×
1 through-hole of the mechanical
mounting.
4. Align the base body of the N-472 with the mechanical mounting.
5. Fix the N-472 in the mechanical mounting:
a)
Hold the base body and screw the mounting nut of the N-472 in the direction of the
mechanical mounting.
b) Hand-tighten the mounting nut with the hook wrench.
6. Check that the linear actuator is affixed firmly in the mounting.
7. Optional: Manually turn the screw head of the linear actuator's fine-threaded screw
into the desired position to avoid longer travel to this position.