Bruin Pumps BR2400 User manual
MAINTENANCE
Pump Head Maintenance
Pump Head Assembly
Step 1: Ensure all parts are clean and free from damage (see Inspection section). Lubricate all O-rings
with petroleum based lubricant; lubricate packing and plunger with a suitable packing lubricant grease
(Teflon or Graphite based packing lubricant is recommended, but an equivalent suitable lubricant like a
Molybdenum disulfide based lubricant can be substituted).
Step 2: Install O-ring into bottom seat. Place the 1/2” ball into bottom seat
and the gasket (the widest of the four gaskets) onto the seat and cover ball
with ball cage. Place gasket onto ball cage and insert into suction end of body.
Thread bottom bushing into suction end of body utilizing a thread sealant.
Tighten bottom bushing.
Step 3: Install O-ring and retaining ring into the top seat. Install top seat into
body with a gasket on both sides of seat. Place 3/8” ball and ball check spring
into top bushing. Thread top bushing into body utilizing a thread sealant.
Tighten top bushing.
Step 4: Install packing with lantern ring in body, ensuring it is installed in the
correct order and orientation. Note: The “V-Ring” point should be pointing
outward and the lantern ring in line with the grease jack. Place plunger
packing gland on packing. Loosely thread packing gland nut into the body.
Carefully insert plunger into packing. Install grease jack lubricating assembly
onto pump head.
Step 5: Install head assembly into housing, ensuring plunger fits into the
crosshead assembly and install drive clip. Install and tighten hex bolts.
Step 6: Install gasket and cover with wing screws. Install and tighten priming
valve into body utilizing a thread sealant.
Pump Head Disassembly
Step 1: Disconnect power source, ensure all pressure is removed from pump head assembly and isolate
fluid discharge and suction lines. Open and remove priming valve. Disconnect fluid discharge
and suction lines.
Step 2: Remove the cover, to get access to and remove drive clip from the crosshead assembly.
BR2400
Electric Drive Chemical Injection Pump
Disconnect power source and ensure pressure is removed from pump head prior to
performing any maintenance. Hazardous pressures can result in serious injury or
property damage.
Maintenance
and Inspection
04-21
Step 3: Remove the hex bolts and the pump head assembly from the housing.
Step 4: Loosen and remove top bushing, ball check spring, ball, gaskets, and top check valve seat.
Remove the retaining ring and O-ring from the top check valve seat.
Step 5: Loosen and remove bottom bushing, bottom check valve seat, ball, ball cage and gaskets.
Remove the O-ring and retaining ring from the bottom check valve seat.
Step 6: Unthread packing gland nut and remove plunger, plunger packing gland, packing and lantern
ring.
Housing Maintenance
Housing Assembly
The following Steps 4 through 12 are for one housing assembly.
Step 1: Ensure all parts are clean and free from damage (see Inspection section).
Step 2: Bolt down the reducer onto the base plate. Leave bolting loose to allow reducer to move freely
during remainder of assembly process.
Step 3: Insert keys into the drive shaft. Center the drive shaft into the reducer and tighten fasteners.
Step 4: Ensure the shaft bearings and crosshead bearings are installed in the pump housing, allowing
the driveshaft to be properly orientated when the housing is correctly bolted to the base plate. Press the
screen into the hole in the bottom of the housing.
Step 5: Using a petroleum based lubricant, grease the O-ring and slide it into
position on the adjusting screw assembly. Screw the stroke adjustor onto the
adjusting screw assembly. Slide the stroke adjustor into the crosshead
assembly and insert the crosshead pins to hold it in place.
Step 6: Insert crosshead assembly into the housing with the longer slot facing
up.
Step 7: Press eccentric cam into the cam bearing to create the eccentric cam
assembly.
Step 8: Place the eccentric cam assembly into the large slot of the cross head
assembly.
Step 9: Slide housing onto the base with the drive shaft going through the
housing, crosshead assembly and the eccentric cam assembly. The slot in the
eccentric cam must be lined up with the drive shaft cam key for the housing to
properly slide on. Note: The cam key must be horizontally located or it will
not fit through the crosshead assembly.
Step 10: Bolt down the housing onto the base plate. Install second housing assembly in the same
manner for a duplex unit. Tighten reducer bolting.
Step 11: Bolt the head assembly into the housing with the plunger lining up to the cross head assembly
and insert the drive clip.
Step 12: Install gasket and cover with wing screws.
Step 13: Mount the motor onto the reducer.
Housing Disassembly
The following Steps 3 through 9 are for a single housing assembly.
Step 1: Disconnect power source, ensure all pressure is removed from pump head assembly and
isolate fluid discharge and suction lines. Open and remove priming valve. Disconnect fluid
discharge and suction lines.
Step 2: Remove the motor. Two threaded holes in the reducer flange are provided to assist motor
removal.
Step 3: Remove wing screws, covers and gaskets from housing.
Step 4: Remove drive clip from plunger/crosshead assembly. Unbolt and remove head assembly from
housing. See Pump Head Disassembly instructions for further disassembly of pump head
assembly.
Step 5: Remove bolts holding housing onto base plate and slide it off the drive shaft. The cam key must
be aligned horizontally to allow drive shaft removal.
Step 6: Remove the eccentric cam assembly out of the crosshead assembly and housing.
Step 7: If necessary, press out the eccentric cam from the cam bearing.
Step 8: Slide the crosshead assembly out of the housing.
Step 9: Push out crosshead pins holding stroke adjustor and adjusting screw assembly in the crosshead
assembly. Unscrew the stroke adjustor off the adjusting screw assembly.
Step 10: Unscrew the fasteners on the reducer and slide out the drive shaft. Note: The keys on the drive
shaft are not attached and can fall out.
Step 11: Unbolt the reducer from the base plate.
*** *** *** *** ***
INSPECTION
Inspect all components for damage. Replace or repair parts as necessary. The following is a
guideline of what to inspect:
•Inspect all threads, seals and packing for damage.
•Inspect body seal areas for corrosion, pitting, or damage. Seal areas on the body include the
packing area and the area below the top seat and ball cage.
•Inspect balls, top seat, bottom seat and ball check spring for corrosion or damage.
•Inspect plunger for wear, scarring, or damage.
•Inspect ratchet and bearing for wear or damage.
•Inspect housing and all other components for damage.
9001-20 Street NW, Edmonton, Alberta, Canada T6P 1K8 Phone: 780-430-1777 Fax: 780-449-5233
Table of contents
Other Bruin Pumps Water Pump manuals
Popular Water Pump manuals by other brands
Sykes AmeriPumps
Sykes AmeriPumps GP100M Operation and maintenance instructions
DUROMAX
DUROMAX XP WX Series user manual
BRINKMANN PUMPS
BRINKMANN PUMPS SBF550 operating instructions
Franklin Electric
Franklin Electric IPS Installation & operation manual
Xylem
Xylem e-1532 Series instruction manual
Milton Roy
Milton Roy PRIMEROYAL instruction manual