Grouting - EBARA TH Series Operating Instructions, Installation & Maintenance Manual

Operating, Installation, and Maintenance
Rules for Safe Installation (Continued)
ALINGMENT PROCEDURES(continued)
1. Check axial clearance of coupling at every 90° increment. (see figure 4) Axial clearances should be
examined using a feeler gauge.
2. Use a straight edge to check radial alignment at every 90° increment. Place the straight edge across
the two rims of the sleeve coupling to check there is no light path between the edge and the
coupling. The maximum admissible radial clearance is .008 in (0.2 mm.)
3. Align the assembly by loosening the motor bolts and move the motor laterally or insert shims as
needed.
4. Tighten the motor bolts then recheck the alignment.
Coupling Alignment can be performed using a dial indicator. See figure 7.
1. Make a reference line on coupling sleeves.
2. Move the dial to zero.
3. Turn the coupling half that has the dial fixed on it.
4. Make dial reading to determinate if the assembly requires an adjustment in the alignment.
GROUTING –After the alignment has been made and checked, tighten the anchor bolts, but not fully.
After this is completed the assembly base may be grouted. The anchor bolts may be tightened fully
after the grout has been able to dry for 48 hours. Grouting is necessary for a vibration free operation,
except in cases of portable units for specific applications. Unless otherwise noted in design
specifications, the metal base must be filled with grout. When grouting, please use the following
steps,
• Pour the grout into the cavities of the baseplate, vibrate as needed to avoid the formation of air
pockets or gaps.
• After piping has been connected and anchor bolts have been tightened, check the alignment of the
assembly again.
• After grouting has become completely dry, paint its edges to protect against moisture.
• Be sure to use non-shrink grout.
Rev 10/2018
Figure 4 – Alignment with feeler gauge and straight edge
Figure 5 – Coupling alignment using dial indicator
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