BLACKMER XF1C Manual

BLACKMER POWER PUMPS 961220
INSTRUCTIONS NO. 101
-
A00
INSTALLATION OPERATION AND MAINTENANCE INSTRUCTIONS
MODELS: XF1C, XB1C, XF1PC, XB1PC
Discontinued Models:
XF1B, XB1B, XF1PB, XB1PB, XF1A, XB1A, XF1PA, XB1PA
Section
Effective
Replaces
101
Aug 2019
Jan 2014
TABLE OF CONTENTS
Page
PUMP DATA
Technical Data ...................................................... 2
Initial Pump Start Up Information........................... 2
INSTALLATION
Pre-Installation Cleaning ....................................... 3
Location and Piping ............................................... 3
Pump Relief Valve and Bypass valve .................... 3
Check Valves ........................................................ 4
Mounting ............................................................... 4
Coupling Alignment ............................................... 4
Pump Rotation ...................................................... 4
To Change Pump Rotation .................................... 4
OPERATION
Pre-Start Up Check List ......................................... 5
Start Up Procedures .............................................. 5
Flushing the Pump ................................................ 5
Relief Valve Setting and Adjustment ..................... 6
MAINTENANCE
Lubrication ............................................................... 6
Strainers ................................................................... 6
Vane Replacement ................................................... 7
Pump Disassembly .................................................. 7
Parts Replacement ................................................... 7
Pump Assembly ....................................................... 8
TROUBLE SHOOTING
.................................................. 10
NOTE: Numbers in parentheses following individual parts
indicate reference numbers on Blackmer Parts List No.
101-A01.
Blackmer pump manuals and parts lists may be obtained
from Blackmer's website (www.blackmer.com) or by
contacting Blackmer Customer Service.
SAFETY DATA
This is 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 damage
Warns of hazards that WILL cause serious personal injury,
death or major property damage.
Warns of hazards that CAN cause serious personal injury,
death or major property damage.
Warns of hazards that CAN cause personal injury
or property damage.
NOTICE:
Indicates special instructions which are very
important and must be followed.
NOTICE:
Blackmer power pumps MUST only be installed in
systems which have been designed by qualified
engineering personnel. The system MUST conform
to all applicable local and national regulations and
safety standards.
This manual is intended to assist in the installation
and operation of the Blackmer power pump, and
MUST be kept with the pump.
Blackmer power pump service shall be performed by
qualified technicians ONLY. Service shall conform to
all applicable local and national regulations and
safety standards.
Thoroughly review this manual, all Instructions and
hazard warnings, BEFORE performing any work on
the Blackmer power pump.
Maintain ALL system and Blackmer power pump
operation and hazard warning decals.

101-A00 page 2/12
SAFETY DATA
Failure to disconnect and lockout
electrical power or engine drive before
attempting maintenance can cause
severe personal injury or death
Failure to disconnect and lockout
electrical power before attempting
maintenance can cause shock, burns or
death
Hazardous
machinery can
cause serious
personal injury.
Hazardous voltage.
Can shock, burn or
cause death.
If pumping hazardous or toxic fluids,
system must be flushed and
decontaminated, inside and out, prior to
performing service or maintenance
Disconnecting fluid or pressure
containment components during pump
operation can cause serious personal
injury, death or major property damage
Hazardous or toxic
fluids can cause
serious injury.
Hazardous pressure
can cause serious
personal injury or
property damage
Operation without guards in place can
cause serious personal injury, major
property damage, or death.
Failure to relieve system pressure prior
to performing pump service or
maintenance can cause serious
personal injury or property damage.
Do not operate
without guard in
place
Hazardous pressure
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 each pump. It is
recommended that the data from this tag be recorded and filed for future reference. If replacement parts are needed, or if
information pertaining to the pump is required, this data must be furnished to a Blackmer representative.
TECHNICAL DATA
XF1, XB1 XF1P, XB1P
Maximum Pump Speed 1,750 RPM 1,750 RPM
Maximum Temperature
240°F
(115°C)
240°F
(115°C)
Maximum Viscosity 100 SSU
(20 cP)
100 SSU
(20 cP)
Maximum Differential
Pressure
125 psi
(8.6 Bar)
125 psi
(8.6 Bar)
Maximum Working
Pressure
350 psi
(24.1 Bar)
350 psi
(24.1 Bar)
 Technical Data is for standard materials of
construction. Consult Blackmer Material Specs for
optional materials of construction.
cP (centipoise) = centistokes at fluid specific gravity of 1.0
INITIAL START UP INFORMATION
Model No.: ____________________________________
Serial No.: ____________________________________
ID No.: _______________________________________
Date of Installation: _____________________________
Pressure Gauge Reading:
________________________
Vacuum Gauge Reading: ________________________
Flow Rate: ___
_________________________________

101-A00 page 3/12
INSTALLATION
NOTICE:
Blackmer pumps must only be installed in systems
designed by qualified engineering personnel. System
design must conform with all applicable regulations and
codes and provide warning of all system hazards.
Install, ground and wire to local and
National Electrical Code requirements.
Install an all-leg disconnect switch near
the unit motor.
Disconnect and lockout electrical power
before installation or service
Electrical supply MUST match motor
nameplate specifications.
Hazardous voltage.
Can shock, burn or
cause death.
Motors equipped with thermal protection automatically
disconnect motor electrical circuit when overload exists.
Motor can start unexpectedly and without warning.
PRE-INSTALLATION CLEANING
NOTICE:
New pumps contain residual test fluid and rust inhibitor.
If necessary, flush pump prior to use.
Foreign matter entering the pump WILL cause extensive
damage. The supply tank and intake piping MUST be
cleaned and flushed prior to pump installation and operation.
LOCATION AND PIPING
Pump life and performance will be significantly reduced when
installed in an improperly designed system. Before starting
the layout and installation of the piping system, review the
following suggestions:
1. Locate the pump as near as possible to the source of
supply to avoid excessive inlet pipe friction.
2. The inlet line should be at least as large as the intake
port on the pump. It should slope downward to the
pump, and should not contain any upward loops.
Eliminate restrictions such as sharp bends; globe valves,
unnecessary elbows, and undersized strainers.
3. A strainer must be installed in the inlet line to protect the
pump from foreign matter. The strainer should be
located at least 24" (0.6m) 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 must be free of
all leaks.
5. Expansion joints, placed at least 36" (0.9m) from the
pump, will compensate for expansion and contraction of
the pipes. Contact the flexible connector/hose
manufacturer for required maintenance/care and design
assistance in their use.
6. Install pressure gauges in the NPT ports provided in the
pump casing to check pump performance at start up.
7. ALL piping and fittings MUST be properly supported to
prevent any piping loads from being placed on the pump.
8. Check alignment of pipes to pump to avoid strains,
which might later cause misalignment. See Figure 2.
Unbolt flanges or break union joints. Pipes should not
spring away or drop down. After pump has been in
operation for a week or two, completely recheck
alignment.
Figure 2
9. When pumping liquids at elevated temperature,
provisions should be made to compensate for expansion
and contraction of the pipes, especially when long pipe
lines are necessary. Steel pipe expands approximately
3/4” (1.9 cm) per 100 feet (30.49 m) per 100°F (37.8°C)
rise in temperature.
INTERNAL PUMP RELIEF VALVE AND
BACK TO TANK BYPASS VALVE
NOTICE:
The pump internal relief valve is designed to protect the
pump from excessive pressure and must not be used as
a system pressure control valve.
Pumping volatile liquids under suction lift may cause
cavitation. Partial closing of the discharge valve WILL result
in internal relief valve chatter and is NOT recommended. For
these applications, install an external system pressure
control valve, and any necessary bypass piping, back to the
storage tank. See Figure 3
A system pressure control valve is also recommended when
operating for extended periods (more than 1 minute) against
a closed discharge valve.
Figure 3
Bypass Valve Mounting

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.

101-A00 Page 5/12
OPERATION
Operation without guards in place can
cause serious personal injury, major
property damage, or death.
Do not operate
without guard
in place
Disconnecting fluid or pressure
containment components during pump
operation can cause serious personal
injury, death or major property damage
Hazardous pressure
can cause personal
injury or property
damage
Failure to relieve system pressure prior
to performing pump service or
maintenance can cause serious
personal injury or property damage.
Hazardous pressure
can cause serious
personal injury or
property damage
Pumps operating against a closed valve
can cause system failure, personal
injury and property damage
Hazardous pressure
can cause personal
injury or property
damage
PRE-START UP CHECK LIST
1. Check the alignment of the pipes to the pump. Pipes
should be supported so that they do not spring away or
drop down when pump flanges or union joints are
disconnected.
2. Verify proper coupling alignment.
3. Check the entire pumping system to verify that the
proper inlet and discharge valves are fully open, and that
the drain valves and other auxiliary valves are closed.
4. Install suction and discharge pressure gauges on the
pump in the 1/4” NPT connections provided.
5. Check the wiring of the motor.
6. Briefly start the pump to verify proper rotation direction.
START UP PROCEDURES
NOTICE:
Consult the "General Pump Troubleshooting" section of
this manual if difficulties during start up are
experienced.
1. Start the pump. Priming should occur 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, vibration and overheating.
4. If possible, check the flow rate to ensure the pump is
operating within the expected parameters. Record flow
rate in the “Initial Startup Information” section.
5. Check the pressure setting of the relief valve by
momentarily closing a valve in the discharge line and
reading the pressure gauge. This pressure should be 10
– 20 psi (.7 – 1.4 bar) higher than the maximum system
operating pressure, or the external system pressure
control valve setting (if equipped). DO NOT operate the
pump against a closed discharge valve for more
than 15 seconds. If adjustments need to be made,
refer to “Relief Valve Setting and Adjustment” section of
this manual.
FLUSHING THE PUMP
NOTICE:
If flushing fluid is to be left in the pump for an extended
time, it must be a lubricating, non-corrosive fluid. If a
corrosive or non-lubricating fluid is used, it must be
flushed from the pump immediately.
1. To flush the pump, run the pump with the discharge
valve open and the intake valve closed. Bleed air into
the pump through the intake gauge plug hole or through
a larger auxiliary fitting in the intake piping. Pump air for
30 second intervals to clean out most of the pumpage.
2. Run a system compatible flushing fluid through the pump
for one minute to clear out the remainder of the original
pumpage.
3. To remove the flushing fluid, follow step 1.
NOTICE:
After flushing, some residual fluid will remain in the
pump and piping.
NOTICE:
Properly dispose of all waste fluids in accordance
with the appropriate codes and regulations.

101-A00 Page 6/12
OPERATION
RELIEF VALVE SETTING AND ADJUSTMENT
The factory relief valve pressure setting is marked on a metal
tag attached to the valve cover. Generally, the relief valve
should be set at least 10 - 20 psi (0.7 - 1.4 Bar) higher than
the operating pressure or the system pressure control valve.
DO NOT adjust the relief valve pressure setting while the
pump is in operation.
Incorrect settings of the pressure relief
valve can cause pump component
failure, personal injury, and property
damage.
Hazardous pressure
can cause personal
injury or property
damage
1. To INCREASE the pressure setting, loosen the locknut,
and turn the adjusting screw inward, or clockwise.
Retighten the locknut
2. To DECREASE the pressure setting, loosen the
locknut, and turn the adjusting screw outward, or
counterclockwise. Retighten the locknut
Refer to Blackmer Pump Parts List 101-A01 for relief valve
spring pressure ranges. Unless specified otherwise, pumps
are supplied from the factory with the relief valve adjusted to
the mid-point of the spring range.
MAINTENANCE
Failure to disconnect and lockout
electrical power or engine drive before
attempting maintenance can cause
severe personal injury or death
Hazardous
machinery can
cause serious
personal injury.
If pumping hazardous or toxic fluids,
system must be flushed and
decontaminated, inside and out, prior
to performing service or maintenance
Hazardous or toxic
fluids can cause
serious injury.
Operation without guards in place can
cause serious personal injury, major
property damage, or death.
Do not operate
without guard
in place
Failure to disconnect and lockout
electrical power 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 serious personal
injury, death or major property damage
Hazardous pressure
can cause serious
personal injury or
property damage
Failure to relieve system pressure
prior to performing pump service or
maintenance can cause serious
personal injury or property damage.
Hazardous pressure
can cause serious
personal injury or
property damage
NOTICE:
Maintenance shall be performed by qualified technicians
only. Following the appropriate procedures and
warnings as presented in this manual.
LUBRICATION
NOTICE:
To avoid possible entanglement in moving parts do not
lubricate pump bearings or any other parts while the
pump is running.
NOTICE:
If pumps are repainted in the field, ensure that the
grease relief fittings (76A) are functioning properly after
painting. Do NOT paint them closed. Remove any
excess paint from the fittings.
Pump bearings should be lubricated every one to twelve
weeks (AT MINIMUM), depending on the application, and
operating conditions.
Recommended Grease:
Mobil® - Mobilgrease XHP222,
Exxon® - RONNEX MP Grease, or equivalent.
Greasing Procedure:
1. Remove the grease relief fittings (76A) from the bearing
cover (27) and mounting bracket (108 or 108B).
2. SLOWLY apply grease with a hand gun until grease
begins to escape from the grease relief fitting port.
3. Replace the grease relief fittings (76A).
DO NOT overgrease pump bearings. While it is normal for
some grease to escape from the grease telltale hole after
lubrication, excessive grease on pumps equipped with
mechanical seals can cause seal failure.
STRAINERS
Strainers must be cleaned regularly to avoid pump starvation.
Schedule will depend upon the application and conditions.

101-A00 Page 7/12
MAINTENANCE
VANE REPLACEMENT
NOTICE:
Maintenance shall be performed by qualified technicians
only. Following the appropriate procedures and
warnings as presented in manual.
NOTE: The numbers in parentheses following individual
parts indicate reference numbers on the Pump Parts List.
1. Drain and relieve pressure from the pump and system as
required.
2. If the pump shaft is protruding through the cylinder (12),
remove the head assembly from the pump according to
steps 4 - 8 in the "Pump Disassembly" section of this
manual. If the pump shaft is protruding through the head
(20), remove the entire pump from the mounting bracket
(108 or 108B) (See Step 3 in "Pump Disassembly") then
remove the head assembly from the pump according to
steps 5 - 8 in the "Pump Disassembly" section of this
manual.
3. Turn the shaft by hand until a vane (14) comes to the top
(12 o'clock) position of the rotor. Remove the vane.
4. Install a new vane (14), ensuring that the relief groove is
facing toward the direction of rotation. See Figure 6.
5. Repeat steps 3 and 4 until all vanes have been replaced.
6. Reassemble the pump according to the "Pump
Assembly." section of this manual.
Figure 6 – Vane Replacement
PUMP DISASSEMBLY
NOTICE:
Follow all hazard warnings and instructions provided in
the “maintenance” section of this manual.
NOTE: The numbers in parentheses following individual
parts indicate reference numbers on the Pump Parts List.
1. Drain and relieve pressure from the pump and system as
required.
2. Loosen the coupling (34) and remove the shaft key (35).
3. Remove the four mounting screws (28A) and remove the
entire pump assembly from the bracket mount (108 or
108B).
4. Remove the bearing cover capscrews (28), the bearing
cover (27) and gasket (26) Discard the bearing cover
gasket.
5. Remove the locknut (24A) and lockwasher (24B) from
the shaft end protruding through the head (20):
a. Bend up the engaged lockwasher tang and rotate
the locknut counterclockwise to remove it from the
shaft.
b. Slide the lockwasher off the shaft. Inspect the
lockwasher 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 seal
when the head assembly is removed.
7. Remove the head capscrews (21) and carefully pry the
head (20) away from the cylinder.
8. Slide the head off the shaft. The head O-ring (72),
bearing (24), and mechanical seal (153) will come off
with the head assembly. Remove and discard the head
O-ring.
9. Pull the bearing (24) from the housing in the head.
10. Place a cloth under the seal to prevent damage. Using a
blunt instrument, gently push the stationary seat (153B)
to remove it from the head. Be careful not to contact the
seal faces during removal.
11. Remove and discard the mechanical seal O-rings (153D
and 153G).
12. Remove the locknut (24A) and lockwasher (24B) from
the shaft end protruding through the cylinder (12):
a. Bend up the engaged lockwasher tang and rotate
the locknut counterclockwise to remove it from the
shaft.
b. Slide the lockwasher off the shaft. Inspect the
lockwasher for damage and replace as required.
13. Clean the shaft protruding through the cylinder
thoroughly, making sure the shaft is free of nicks and
burrs.
14. Gently pull the rotor and shaft (13) from the cylinder.
While one hand is pulling the shaft, the other hand
should be cupped underneath the rotor to prevent the
vanes (14) from falling out. Carefully set the rotor and
shaft aside.
15. Remove vanes (14) from rotor and shaft (13).
16. Pull the bearing (24) from the cylinder.
17. Place a cloth under the seal to prevent damage. Using a
blunt instrument, gently push the stationary seat (153B)
to remove it from the head. Be careful not to contact the
seal faces during removal.
18. Remove and discard the mechanical seal O-rings (153D
and 153G).
PARTS REPLACEMENT
1. If any of the O-rings have been removed or disturbed
during disassembly, they must be replaced with new O-
rings.
2. Excessive or continuous leakage from the telltale hole in
the bearing cover may be an indication of a damaged
mechanical seal. If a mechanical seal has been leaking, it
is recommended the entire seal be replaced. Refer to
"General Pump Troubleshooting" for possible causes of
seal leakage.

101-A00 Page 8/12
MAINTENANCE
PUMP ASSEMBLY
Before reassembling the pump, inspect all component parts
for wear or damage, and replace as required. Wash out the
bearing/seal recess of the head and cylinder and remove any
burrs or nicks from the rotor and shaft.
1. Position the pump cylinder (12) with the bearing side up.
2. Apply a small amount of quality O-ring lubricant in the
seal and bearing recess of the cylinder to facilitate
mechanical seal (153) installation.
3. Insert the seal jacket assembly (153A) into the seal
recess of the cylinder with the drive tangs of the jacket
inward.
4. With the polished face outward, align the notches of the
rotating seal face with the jacket, and install the seal
face (153F) and O-ring (153G) into the jacket assembly.
After installation, clean the seal face with a clean tissue
and alcohol.
5. Clean the polished face of the stationary seat (153B)
with a clean tissue and alcohol.
6. Install new O-ring (153D) onto stationary seat (153B).
7. Align the notch in stationary seat (153B) with the anti-
rotation pin in the cylinder (12) and insert it into the seal
recess with the polished face inward to mate with the
rotating face.
8. Hand pack the ball bearing (24) with grease. Refer to
"Lubrication" for the recommended grease.
9. Install the bearing (24) into the cylinder recess. The
bearing balls should face outward, with the grease shield
inward. Ensure that the bearing (24) is fully and squarely
seated against the mechanical seal (153).
10. Keep the bearing (24) from falling out of the cylinder (12)
by securing with one of the bearing cover capscrews
(28) and a washer that will catch the outer ring of the
bearing when tightened.
11. Turn the pump cylinder (12) over with the INTAKE port
and relief valve to the right.
12. Determine which rotation direction the pump should be
when installed.
6 vane pumps may be assembled Right-Hand (Factory
Standard) or Left-Hand.
4 vane pumps (discontinued models) are
Right Hand only.
A Right-Hand rotation pump will have the drive end of
the shaft (long end) protruding through the cylinder (12)
with the bearing cover (27) on the head (20).
A Left-Hand rotation pump will have the drive end of the
shaft (long end) protruding through the head (20) with
the bearing cover (27) on the cylinder (12).
13. Apply a light coating of quality O-ring lubricant to the
shaft end to be inserted into the cylinder.
14. Insert the shaft into the cylinder (12). Carefully slide the
shaft through the installed mechanical seal (153) and
bearing. Align the notch in the rotor with the drive tang
on 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 through
the bearing in the cylinder with the tangs outward.
Ensure the inner tang “A” of the lockwasher is engaged
in the slot in shaft threads. Bend it slightly, if necessary.
(See Figure 8.)
16. Install locknut (24A) onto threads of shaft with the
tapered end inward.
17. Tighten the locknut (24A) with a spanner wrench to pull
the rotor flat against the back wall of the cylinder. DO
NOT overtighten the locknut and bend or shear the inner
tang. Adjustment to the locknuts will be made after the
head is installed.
18. Insert the vanes (14) into the slots in the rotor, ensuring
that the relief groove is facing toward the direction of
rotation. See Figure 6
19. Apply a light coating of quality O-ring lubricant in the seal
and bearing recess of the head (20) to facilitate
mechanical seal (153) installation.
20. Insert the seal jacket assembly (153A) into the seal
recess of the head with the drive tangs of the jacket
inward.
21. With the polished face outward, align the notches of the
rotating seal face with the jacket, and install the seal face
(153F) and O-ring (153G) into the jacket assembly.
22. Clean the polished face of the stationary seat (153B)
with a clean tissue and alcohol.
23. Install new O-ring (153D) onto stationary seat (153B).
24. Align the notch in stationary seat (153B) with the anti-
rotation pin in the head (20). Insert it into the seal
recess with the polished face inward to mate with the
rotating face.
25. Hand pack the ball bearing (24) with grease. Refer to
"Lubrication" in the Pump Maintenance Section for the
recommended grease.
26. Install the bearing (24) into the head recess. The bearing
balls should face outward, with the grease shield inward.
Ensure that the bearing (24) is fully and squarely seated
against the mechanical seal (153).
27. Apply a small amount of quality O-ring lubricant to the O-
ring groove on the inside face of the head and install a
new head O-ring (72) in the groove by laying the O-ring
flat and starting in on one side of the groove, stretching
ahead with the fingers, as shown in Figure 7.
Figure 7 Head O-ring Installation
28. Apply a light coating of quality O-ring lubricant on the
shaft to facilitate head installation.
29. With the telltale hole towards the bottom of the pump,
carefully install the head assembly (20) over the shaft
and against the cylinder (12). Use care not to damage
the mechanical seal components. Align the drive tangs
of the mechanical seal with the notches in the rotor.
30. Rotate the head (20) to engage the drive tangs of the
seal jacket with the slots in the rotor.

101-A00 Page 9/12
MAINTENANCE
31. Install and finger tighten the head capscrews (21). The
head capscrews will be fully tightened after the second
locknut is installed.
32. Install lockwasher (24B) on the shaft protruding through
the bearing in the head with the tangs outward. Ensure
the inner tang “A” of the lockwasher is engaged in the
slot in shaft threads. Bend it slightly, if necessary. (See
Figure 8.)
33. Install locknut (24A) onto threads of shaft with the
tapered end inward.
34. Using a keyed coupling half, hold the shaft end and
tighten the locknut with a spanner wrench to pull the
head against the cylinder. DO NOT overtighten and
shear the inner tang of the lockwasher.
35. Uniformly tighten the head capscrews, torquing to 25 lbs
ft (34 Nm).
36. Loosen both bearing locknuts (24A).
37. Rotate the shaft to test for binding or tight spots. If the
rotor does not turn freely, tap the rim of the head with a
soft-faced mallet until the correct position is found.
LOCKNUT ADJUSTMENT
It is important that the bearing locknuts (24A) and
lockwashers (24B) be installed and adjusted properly.
Overtightening locknuts can cause bearing failure or a
broken lockwasher tang. Loose locknuts will allow the rotor
to shift against the discs (71), causing wear. See Figure 8.
Figure 8– Locknut Assembly
38. On both ends of the pump shaft, install a lockwasher
(24B) with the tangs facing outward, followed by a
locknut (24A) with the tapered end inward. Ensure the
inner tang "A" of the lockwasher is located in the slot in
the shaft threads, bending it slightly, if necessary.
39. Tighten both locknuts (24B) to ensure that the bearings
(24) are bottomed in the head recess. DO NOT
overtighten and bend or shear the lockwasher inner
tang.
40. Loosen both locknuts (24A) one complete turn.
41. Tighten one locknut (24A) until a slight rotor drag is felt
when turning the shaft by hand.
42. Back off the nut the width of one lockwasher tang "B".
Secure the nut by bending the closest aligned
lockwasher tang into the slot in the locknut. The pump
should turn freely when rotated by hand.
43. Tighten the opposite locknut (24A) by hand until it is
snug against the bearing (24). Then, using a spanner
wrench, tighten the nut the width of one lockwasher tang
“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 continue to turn freely
when rotated by hand.
44. To check adjustment, grasp the nut and washer with
fingers and rotate back and forth. If this cannot be done,
one or both locknuts are too tight and should be
alternately loosened one stop at a time (.001" - 25
microns). Begin by loosening the locknut (24A) adjusted
last.
45. Attach the new bearing cover gasket (26) and the
bearing cover (27) to the non-driven side of pump with
the grease fitting (76) upward. Install the bearing cover
capscrews (28), torquing to 15 lbs ft (20 Nm).
46. Inspect the grease seal (104) in the foot bracket for wear
or damage and replace as required. Grease the outside
diameter of the grease seal (104) and push it into the
bracket (108 or 108B) with the lip inward.
47. Mount the assembled pump on the foot bracket (108 or
108B) with the four mounting screws (28A).
48. Reinstall coupling, shaft key, and coupling guards.
49. Refer to “Pre-Start Up Check List” and “Start Up
Procedures” prior to restarting pump operation.
RELIEF VALVE ASSEMBLY
1. Insert the valve (9) into the relief valve bore of the casing
with the small end inward.
2. Install the relief valve spring (8) in the valve bore.
3. Install new O-ring (4A) on spring guide (7).
4. Install spring guide (7) in valve bore of cylinder, aligning
spring (8) on spring guide during assembly.
5. Install new O-ring (10) in O-ring groove in relief valve
cap (4).
6. Apply a thin coat of grease on threads of relief valve cap
(4) and install in cylinder (12).
7. Screw the relief valve adjusting screw (2) with locknut (3)
into the valve cover (4) until it makes contact with the
spring guide (7).
8. After the relief valve has been adjusted, tighten the
Locknut (3)
NOTICE:
The relief valve setting MUST be tested and adjusted
more precisely before putting the pump into service.
Refer to "Relief Valve Setting and Adjustment"
9. Refer to “Pre-Start Up Check List” and “Start Up
Procedures” sections of this manual prior to restarting
pump operation.
Operation without guards in place can
cause serious personal injury, major
property damage, or death.
Do not operate
without guard
in place
Failure to adjust guards covering all
rotating part, allowing only a safe gap,
can cause personal injury or death
Do not operate
without guard
in place

101-A00 Page 10/12
PUMP TROUBLESHOOTING
NOTICE:
MAINTENANCE SHALL BE PERFORMED BY QUALIFIED TECHNICIANS ONLY, FOLLOWING THE APPROPRIATE
PROCEDURES AND WARNINGS AS PRESENTED IN THIS MANUAL.
SYMPTOM PROBABLE CAUSE
Pump Not Priming 1. Pump not wetted.
2. Worn vanes.
3. Internal control valve closed.
4. Strainer clogged.
5. Inlet line or valves clogged or too restrictive.
6. Pump vapor-locked.
7. Pump speed too low for priming.
8. Relief valve partially open, worn or not seating properly.
Reduced Capacity 1. Pump speed too low.
2. Internal control valve not fully open.
3. Excessive restriction in the inlet line (i.e.: undersized piping, too many elbows &
fittings, clogged strainer, etc.).
4. Damaged or worn parts (vanes, cylinder, or rotor).
5. Excessive restriction in discharge line causing partial flow through the relief valve.
6. Relief Valve worn, set too low, or not seating properly.
7. External Bypass Valve set too low.
8. Operating without a vapor return line.
9. Vanes installed incorrectly (see "Vane Replacement").
Noise 1. Excessive pressure drop on the pump due to:
a. Undersized or restricted fittings in the inlet line.
b. Pump speed too fast.
c. Pump too far from fluid source.
2. Running the pump for extended 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 shaft, or drive coupling misaligned.
8. Excessively worn rotor.
9. Malfunctioning valve in the system.
10. Relief valve setting too low.
11. Damaged vanes (see following category).
Damaged Vanes 1. Foreign objects entering the pump.
2. Running the pump dry for extended periods of time.
3. Cavitation.
4. Excessive heat.
5. Hydraulic hammer - pressure spikes.
6. Vanes installed incorrectly (see"Vane Replacement").
7. Incompatibility with the liquids pumped.
Broken Shaft 1. Foreign objects entering the pump.
2. Relief valve not opening.
3. Hydraulic hammer - pressure spikes.
4. Pump/driver shaft misalignment.
5. Excessively worn vanes or vane slots.
Mechanical Seal Leakage 1. O-rings not compatible with the liquids pumped.
2. O-rings nicked, cut or twisted.
3. Shaft at seal area damaged, worn or dirty.
4. Ball bearings overgreased.
5. Excessive cavitation.
6. Mechanical seal faces cracked, scratched, pitted or dirty.
Overload on Motor 1. Motor Horsepower not sufficient for application.
2. Improper wiring and/or low voltage to motor.
3. Misalignment
4. Excessive pressure or speed.
5. Bearing locknuts adjusted improperly.
6. Faulty or worn bearings.
7. Rotor rubbing against head or cylinder.
8. Dirty mechanical seal faces.

101-A00 Page 11/12
NOTES

Sliding Vane Pumps: 5 to 2200 GPM
Refined Fuels, Liquefied Gases, Solvents,Process
Stainless Steel Sliding Vane Pumps
1 to 265 GPM: Acids, Brines, Sugars, Syrups,
Beer, Beet Juice, Cider, Flavor Extracts, etc.
System One®Centrifugal Pumps
10 to 7500 GPM; Process, Marine Magnetic Drive Pumps Stainless Steel: 14 to 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, Transfer, In-line Accessories Gear Reducers, Bypass Valves, Strainers
Visit www.blackmer.com for complete information on all Blackmer products
1809 Century Avenue, Grand Rapids, Michigan 49503-1530 U.S.A.
Telephone: [phone] • Fax: [phone]
E-mail: [email protected] • Internet Address: www .blackmer.com