Electric Company Water Heater User Manual

2-6 Installation & Operation MN1800
LMBL Series Continued
Brushless Linear Iron Core Servo Motor Continued
Modular Magnet Track
Installation Refer to Figure 2-3. Some magnets are provided in modular segments. This is the
recommended procedure to install these modular magnet track sections.
Note: It is recommended that rubber coated tool handles be used to reduce injury
(pinching fingers etc.) and protect the surface of the magnets.
1. Bolt the coil assembly onto the underside of the slide (carriage). Ensure the
leads extend in the proper direction.
2. Install the magnet track on the base–plate adjacent to or between the linear
bearing. Magnet track ends should not oppose each other.
Place a 0.030″ ± 0.005″ thick non magnetic shim on the magnet track. The
shim thickness must be equal to the recommended air gap (space between the
coil assembly and the magnet track).
Figure 2-3 Modular Magnet Track Installation
 Move Slide to this side
after coil is installed
 Install one section of magnet track
Rail
 Coil Assembly
Slide
Base
3. Hold the slide with a firm grip and move it over the magnet track section/shim.
Note: The slide will be drawn forcefully towards the magnet track and may
overshoot the rails if not held firmly.
Check the space between the shim and the coil assembly. If the space
between the shim and the coil assembly is large, uniformly loosen the mounting
screws allowing the coil assembly to be fully and evenly lowered onto the shim.
Insert another shim thick enough to fill the gap between the coil assembly and
the slide, see Figure 2-4. Tighten the mounting screws once again.
Figure 2-4 Air Gap Adjustment
Slide
Rail
Coil Assembly
Magnet
Air Gap (0.30± 0.005)
Shim
(if necessary)
Base