User Manual

Couplings must have proper certification to be used in an ATEX classified environment. Use the
instructions from the coupling manufacturer in order to lubricate and install the coupling.
Install the coupling guard
WARNING:
• Never operate a pump without a properly installed coupling guard. Personal injury will occur if you
run the pump without a coupling guard.
• Always disconnect and lock out power to the driver before you perform any installation or
maintenance tasks. Failure to disconnect and lock out driver power will result in serious physical
injury.
• The coupling used in an Ex-classified environment must be properly certified and must be
constructed from a non-sparking material.
Required parts:
1 2 3
4 5
6
1. End plate, drive end
2. End plate, pump end
3. Guard half, 2 required
4. 3/8-16 nut, 3 required
5. 3/8 in. washer
6. 3/8-16 x 2 in. hex head bolt, 3 required
1. De-energize the motor, place the motor in a locked-out position, and place a caution tag at the starter
that indicates the disconnect.
2. Put the pump-side end plate in place.
If the pump-side end plate is already in place, make any necessary coupling adjustments and then
proceed to the next step.
If the pump size is... Then...
STi, MTi Align the pump-side end plate to the bearing frame. You do not need to
adjust the impeller.
Commissioning, Startup, Operation, and Shutdown
Model 3198 i-FRAME Installation, Operation, and Maintenance Manual 45