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101-A00    page 4/12 

INSTALLATION 

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 pump discharge piping 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.

 

 
 

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 4. This arrangement allows for slight 
shifting of position to accommodate alignment with the 
mounting holes in the base plate. 

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. Shims should be used under the 
edges of the base prior to tightening of the anchor bolts to 
prevent distortion. 
 

BOLT

BASE

STANDARD

PIPE

WASHER

 

Figure 4 – Pipe Type Anchor Bolt 

 
 

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 5. 
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 straightedge.  Turn both 
shafts by hand, checking the reading through one 
complete revolution.  Maximum offset should be less 
than .005" (0.127 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 0.005" (0.127 mm).  Some 
laser alignment tools will check angular alignment as 
well. 

3.  Replace the coupling guards after setting alignment. 

 

Figure 5 – Coupling Alignment 

 

 

Operation  without  guards  in  place  can 
cause  serious  personal  injury,  major 
property damage, or death. 

 

Do not operate 

without guard 

in place 

 
 

PUMP ROTATION 

NOTICE: 

Confirm correct pump rotation by checking the pump 
rotation arrows respective to piping flow direction.  Do 
not operate the pump in reverse rotation to reverse the 
direction of flow. 

1.  Determine direction of flow where the pump will be 

installed. 

2.  Confirm pump is installed in piping so that the flow will 

pass through the pump from inlet to outlet.  “INLET” and 
“OUTLET” are cast in the cylinder. 

3.  Briefly “jog” pump with pump driver. Check rotation of 

pump driver with respect to rotation arrow on pump. 

 
 

TO CHANGE PUMP ROTATION 

Current 6-vane models:

 To reverse rotation, the pump must 

be disassembled then reassembled with the shaft on the 
opposite side of the pump.  See the ‘Maintenance’ section for 
instructions. 

Discontinued 4-vane models: 

 Rotation direction may not 

be changed on these pumps.

 

 

Summary of Contents for XB1A

Page 1: ...a SAFETY ALERT SYMBOL When you see this symbol on the product or in the manual look for one of the following signal words and be alert to the potential for personal injury death or major property dam...

Page 2: ...ressure can cause serious personal injury or property damage PUMP DATA PUMP IDENTIFICATION A pump Identification tag containing the pump serial number I D number and model designation is attached to e...

Page 3: ...6m from the pump and have a net open area of at least four times the area of the intake piping Strainers must be cleaned regularly to avoid pump starvation 4 The intake and discharge piping system mus...

Page 4: ...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 5 1 Parallel alignment The u...

Page 5: ...within one minute 2 Check the vacuum and pressure gauges to ensure the pump is operating within the expected conditions 3 Inspect piping fittings and associated system equipment for leaks noise vibra...

Page 6: ...before attempting maintenance can cause shock burns or death Hazardous voltage Can shock burn or cause death Disconnecting fluid or pressure containment components during pump operation can cause seri...

Page 7: ...asher for damage and replace as required 6 Clean the shaft portion protruding through the head thoroughly making sure the shaft is free of nicks and burrs This will prevent damage to the mechanical se...

Page 8: ...the seal jacket of the mechanical seal Rotate the shaft to ensure the drive tangs of the mechanical seal are engaged in the notches in the rotor 15 Install lockwasher 24B on the shaft protruding thro...

Page 9: ...B Tighten just past the desired tang then back off the nut to align the tang with the locknut slot Secure the nut by bending the aligned lockwasher tang into the slot in the locknut The pump should co...

Page 10: ...ended periods with a closed discharge line 3 Pump not securely mounted 4 Misalignment of pump or motor base mounted pumps 5 Bearings worn or damaged 6 Vibration from improperly anchored piping 7 Bent...

Page 11: ...101 A00 Page 11 12 NOTES...

Page 12: ...215 GPM HXL 6 8 10 Sliding Vane Pumps 130 to 2 220 GPM Refineries Terminals Barges Ships Reciprocating Gas Compressors Liquefied Gas Transfer Boosting Vapor Recovery Hand Operated Pumps Dispensing Tra...

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