Bell & Gossett P5002169C Series VSCS User Manual
Page 9

7
BASE PLATE SETTING 
Place the pump unit on its concrete foundation, 
supporting it with steel wedges or shims. The 
wedges or shims should be machined and be put 
on both sides of each anchor bolt to provide a 
means for leveling the base. The wedge or shim 
width should be equal to or greater than the base 
rail width. The length of the wedge or shim should 
be at least four times the diameter of the anchor 
bolt. It is acceptable to place additional shims 
between the existing anchor bolts. 
Use an anchor bolt for each anchor bolt hole 
provided, and plain, flat Type-W washers at each 
anchor bolt. 
CAUTION: Equipment Damage
Use an anchor bolt and plain, flat Type-W washer 
at each anchor bolt hole. Otherwise, shifting of the 
pump unit may occur. 
Failure to follow these instructions could result in 
serious property damage and/or moderate 
personal injury. 
It is very important that the pump base be set level 
to avoid any mechanical difficulties with the motor 
or pump. This pump was properly aligned (if 
furnished with a motor) at the factory. However, 
since all pump bases are flexible, they may spring 
and twist during shipment. Do not pipe the pump 
until it is realigned. After piping is completed and 
after the pump is installed and bolted down, align it 
again. It may be necessary to re-adjust the 
alignment from time to time while the unit and 
foundation are new. 
Optional Grouting 
It is permissible to grout the base after the 
pump unit has been leveled, securely bolted 
to the floor, and properly aligned. A good 
grade of non-shrinking grout should be used 
inside the pump base. 
Figure 7: Setting Base Plate
ROTATION 
The Series VSX pump is available in both right- 
and left-hand rotation. An arrow cast into the pump 
body shows the direction of rotation. 
COUPLING ALIGNMENT 
All alignment should be done by moving or 
shimming the motor only. Adjustments in one 
direction may alter alignment in another. 
Therefore, check alignment in all directions after a 
correction is made. All measurements should be 
taken with the pump and motor bolts tightened. 
Final alignment check should be made after the 
unit has attained its final operating temperature. 
WARNING: Unexpected Startup Hazard
Disconnect and lockout power before servicing.
Failure to follow these instructions could result in 
serious personal injury or death, or property 
damage. 
1. Check the pump and motor shafts and
remove any paint, burrs, rust, etc. Slide 
the hubs (and bushings, QD or Taper-
Lock style) on the shafts with keys. 
2. When high speed rings are used for
spacer couplings, loosely install one ring 
on each half element. 
