BLACKMER 111-F01, Installation, Operation And Maintenance Instructions

111-F00     Page 4/16 

INSTALLATION 

PUMP MOUNTING 

A solid foundation reduces noise and vibration, and will 
improve pump performance. On permanent installations it is 
recommended the pumping unit be secured by anchor bolts 
as shown in Figure 2. This arrangement allows for slight 
shifting of position to accommodate alignment with the 
mounting holes in the base plate. 

Figure 2 - Pipe Type Anchor Bolt Box 

For new foundations, it is suggested that the anchor bolts be 
set in concrete. When pumps are to be located on existing 
concrete floors, holes should be drilled into the concrete to 
hold the anchor bolts. 

When installing units built on channel or structural steel type 
bases, use care to avoid twisting the base out of shape when 
anchor bolts are tightened. Place shims as needed under the 
edges of the base prior to tightening of the anchor bolts to 
prevent distortion. 

COUPLING ALIGNMENT 

The pump must be directly coupled to a gear reducer and/or 
driver with a flexible coupling.  Verify coupling alignment after 
installation of new or rebuilt pumps.  Both angular and parallel 
coupling alignment MUST be maintained between the pump, 
gear, motor, etc. in accordance with manufacturer’s 
instructions.  See Figure 3. 

1.  Parallel alignment:  The use of a laser alignment tool or 

dial indicator is preferred.  If a laser alignment tool or dial 
indicator is not available, use a straight edge.  Turn both 
shafts by hand, checking the reading through one 
complete revolution.  Maximum offset should be less 
than .005" (.127 mm). 

2.  Angular alignment:  Insert a feeler gauge between the 

coupling halves.  Check the spacing at 90° increments 
around the coupling (four checkpoints).  Maximum 
variation should not exceed .005" (.127 mm).  Some 
laser alignment tools will check angular alignment as 
well. 

3.  Replace the coupling guards after setting alignment. 

Figure 3 – Alignment Check 

PUMP ROTATION 

PV6 & 8 pumps will ALWAYS operate in the clockwise 
rotation when viewed from the driven end.  See Figures 4 & 5. 
 
 

TO REVERSE PUMP FLOW 

To reverse FLOW direction in a ProVane pump.  The pumps 
rotation WILL NOT CHANGE for PV(S)6 & 8.  See 

Flow 

Direction Options

 in the Maintenance section of this manual.  

 
If the rotation of the electric motor driving the pump is 
incorrect; see the motor manufacturer’s instructions to change 
the rotation of the electric motor to match it to the rotation of 
the pump. 
 
 

CHECK VALVES 

The use of check valves or foot valves in the supply tank is 
not recommended with self-priming, positive displacement 
pumps.  
 
If the possibility of liquid backflow exists when the pump is off, 
a check valve in the system is recommended because the 
pump can motor in the reverse rotation and create undue 
stress on all attached components.  Never start a pump when 
it is rotating in the reverse rotation as the added starting 
torque can damage the pump and related equipment.  If a 
check valve is used, install it at the pump discharge.