Seepex BW 10, Operating And Maintenance Instructions Manual

Page: 70 / 186

Section 2
Installation & Operation
Installation & Operation 2 ‐ 1 MN400
Overview
Installation should conform to the National Electrical Code as well as local codes and
practices. When other devices are coupled to the motor shaft, be sure to install protective
devices to prevent future accidents. Some protective devices include, coupling, belt
guard, chain guard, shaft covers etc. These protect against accidental contact with
moving parts. Machinery that is accessible to personnel should provide further protection
in the form of guard rails, screening, warning signs etc.
Location
It is important that motors be installed in locations that are compatible with motor
enclosure and ambient conditions. Improper selection of the motor enclosure and
ambient conditions can lead to reduced operating life of the motor.
Proper ventilation for the motor must be provided. Obstructed airflow can lead to
reduction of motor life.
1. Open Drip-Proof/WPI motors are intended for use indoors where atmosphere is
relatively clean, dry, well ventilated and non-corrosive.
2. Totally Enclosed and WPII motors may be installed where dirt, moisture or dust are
present and in outdoor locations.
Severe Duty, IEEE 841 and Washdown Duty enclosed motors are designed for
installations with high corrosion or excessive moisture conditions. These motors should
not be placed into an environment where there is the presence of flammable or
combustible vapors, dust or any combustible material, unless specifically designed for
this type of service.
Mounting
The motor must be securely installed to a rigid foundation or mounting surface to
minimize vibration and maintain alignment between the motor and shaft load. Failure to
provide a proper mounting surface may cause vibration, misalignment and bearing
damage.
Foundation caps and sole plates are designed to act as spacers for the equipment they
support. If these devices are used, be sure that they are evenly supported by the
foundation or mounting surface.
After installation is complete and accurate alignment of the motor and load is
accomplished, the base should be grouted to the foundation to maintain this alignment.
The standard motor base is designed for horizontal or vertical mounting. Adjustable or
sliding rails are designed for horizontal mounting only. Consult your Baldor distributor or
authorized Baldor Service Center for further information.
Alignment
Accurate alignment of the motor with the driven equipment is extremely important.
1. Direct Coupling
For direct drive, use flexible couplings if possible. Consult the drive or equipment
manufacturer for more information. Mechanical vibration and roughness during
operation may indicate poor alignment. Use dial indicators to check alignment. The
space between coupling hubs should be maintained as recommended by the
coupling manufacturer.
2. End ‐ Play Adjustment
The axial position of the motor frame with respect to its load is also extremely
important. The motor bearings are not designed for excessive external axial thrust
loads. Improper adjustment will cause failure.
3. Pulley Ratio
The pulley ratio should not exceed 8:1.
4. Belt Drive
Align sheaves carefully to minimize belt wear and axial bearing loads (see End ‐ Play
Adjustment). Belt tension should be sufficient to prevent belt slippage at rated speed
and load. However, belt slippage may occur during starting.
Caution: Do not over tension belts.
5. Sleeve bearing motors are only suitable for coupled loads.