Pumping units assembled by Summit Pump, Inc., Green Bay, WI are guaranteed to be
free from defects in material and workmanship for one year from date of shipment from
factory in Green Bay, WI. The obligation under this Warranty, statutory or otherwise, is
limited to replacement or repair at Green Bay, WI, of such part as shall appear to us upon
inspection at such point, to have been defective in material or workmanship.
This Warranty does not obligate Summit Pump, Inc. to bear the cost of labor or
transportation charges in connection with replacement or repair of defective parts; nor
shall it apply to a pump upon which repairs or alterations have been made unless
authorized by Summit Pump, Inc.
No warranty is made in respect to engines, motors, or trade accessories, such being
subject to warranties of their respective manufacturers.
No express implied or statutory warranty, other than herein set forth is made or
authorized to be made by Summit Pump, Inc.
In no event shall Summit Pump, Inc. be liable for consequential damages or contingent
liabilities arising out of the failure of any Summit Pump, Inc. pump or parts thereof to
operate properly.
SUMMIT PUMP, INC.
Green Bay, WI
LIABILITY
Summit Pump, Inc. shall not be liable for personal physical injury, damage or delays
caused by failure to follow the instructions and procedures for installation, operation and
maintenance contained in this manual.
COPYRIGHT
This Installation, Operation, and Maintenance Manual contains proprietary information,
which is protected by copyright. No part of this Installation, Operation, and Maintenance
Manual may be photocopied or reproduced without prior written consent from Summit
Pump.
The information contained herein is for informational use only and is subject to change
without notice. Summit Pump assumes no responsibility or liability for any errors or
inaccuracies that may appear in this manual.
Packed Box 5
Cartridge Mechanical Seal 6
Type 1 Mechanical Seal 6
4. OPERATION 8
LUBRICATION 8
Oil Lubrication 8
Grease Lubrication 8
ROTATION 9
IMPELLER CLEARANCE 10
PRIMING 10
START UP 10
SHUT DOWN 11
APPENDIX A - IMPELLER CLEARANCE SETTING 12
FEELER GAUGE TECHNIQUE 12
Models 2196, 2196-LF and 2796 12
Model 2196R Feeler Gauge Technique 13
DIAL INDICATOR TECHNIQUE 14
Models 2196, 2196-LF and 2796 14
Model 2196-R Dial Indicator Technique 15
APPENDIX B - CENTRIFUGAL PUMP TROUBLESHOOTING 16
APPENDIX C - MAINTENANCE AND REPAIR 18
DISASSEMBLY PROCEDURES 18
ASSEMBLY PROCEDURES 20
APPENDIX D – PUMP CROSS SECTIONS AND PARTS LISTS 24
MODEL 2196 STO CROSS SECTION 24
MODEL 2196 STO PARTS LIST 24
MODEL 2196 MTO CROSS SECTION 25
MODEL 2196 MTO PARTS LIST 25
MODEL 2196 LTO CROSS SECTION 26
MODEL 2196 LTO PARTS LIST 26
MODEL 2196 XLO CROSS SECTION 27
SUMMIT PUMP MODEL 2196 / 2196-LF / 2196-R / 2796 i
Page 6
Installation, Operation, and Maintenance Manual
MODEL 2196 XLO PARTS LIST 27
MODEL 2196-LF CROSS SECTION 28
MODEL 2196-LF PARTS LIST 28
MODEL 2196-R CROSS SECTION 29
MODEL 2196-R PARTS LIST 29
MODEL 2796 CROSS SECTION 30
APPENDIX E – MAINTENANCE INSTRUCTIONS FOR INPRO/SEAL®
“VBX” BEARING ISOLATORS 32
DETAILS OF OPERATIONS 32
DISASSEMBLY PROCEDURES 32
INSTALLATION PROCEDURES 33
APPENDIX F – DIMENSIONAL DATA 34
MODEL 2196 DIMENSIONAL DATA 34
MODEL 2196 BASEPLATE RELATED DIMENSIONS 35
MODEL 2196-LF DIMENSIONAL DATA 36
MODEL 2196-R DIMENSIONAL DATA 37
MODEL 2796 DIMENSIONAL DATA 38
MODEL 2196 STUFFING BOX RELATED DIMENSIONS 39
APPENDIX G – CONSTRUCTION DETAILS 40
MODEL 2196 CONSTRUCTION DETAILS 40
APPENDIX H – ANSI B15.1 COUPLING GUARDS 41
INSTALLATION INSTRUCTIONS FOR SUMMIT PUMP ANSI B15.1 COUPLING
GUARDS 41
ASSEMBLY PROCEDURES 41
DISASSEMBLY PROCEDURES 45
ii SUMMIT PUMP MODEL 2196 / 2196-LF / 2196-R / 2796
Page 7
Installation, Operation, and Maintenance Manual
1. INTRODUCTION
This installation, operation, and maintenance manual is designed to help you achieve
the best performance and longest life from your Summit Pump models 2196, 2196LF, 2196-R, and 2796.
This pump is an open impeller, centrifugal model with end suction / top discharge.
The pump is designed for handling mild industrial corrosives.
If there are any questions regarding the pump or its application, which are not
covered in this manual or in other literature accompanying this unit, please contact
your Summit Pump distributor.
For information or technical assistance on the power source, contact the power source
manufacturer’s local dealer or representative.
SAFETY
The following message types are used in this manual to alert maintenance personnel
to procedures that require special attention for the protection and safety of both
equipment and personnel:
WARNING!
Failure to comply with the warnings in this
manual could result in personal injury or
death.
CAUTION!
Failure to comply with the cautions in this
manual could result in destruction of or
damage to equipment.
NOTE: Identifies a condition or
procedure which is essential to
proper equipment operation.
Failure to properly lift and move pump
could result in serious personal injury.
Immediately upon arrival, carefully inspect the pump for evidence of damage
during transit. Immediately report any damage to your Summit Pump Distributor.
STORING THE PUMP
Store the pump in a clean dry place. Do not remove piping connection covers.
Rotate the pump shaft by hand at least once per week to maintain a protective
film of oil or grease on the bearings. If you anticipate long-term storage, special
treatment is available for purchase from Summit Pump, Inc.
When choosing a location for the pump, select an area that provides easy access
for inspection and maintenance. Locate the pump as close as possible to the
source which will provide NPSH (Net Positive Suction Head) equal to or greater
than that required by the pump at any capacity over its expected operating range.
FOUNDATION
Use a foundation that is sufficient enough to support all points of the pump baseplate. Level and grout the base-plate per standard construction practices (see
ANSI/HI 1.4.2-1997).
PIPING CONNECTION – SUCTION / DISCHARGE
All piping must be independently supported and accurately aligned to the pump
suction and discharge flanges. Ideally, you should place a short length of flexible
or bellows type spool piece in the connections directly next to the pump flange.
WARNING!
Lock out driver power before beginning to
work on pump.
CAUTION!
Never use force to align piping to the
pump flanges.
CAUTION!
Never operate pump with suction valve
closed.
At a minimum, use suction pipe that is one size larger than the flange. Use an
eccentric reducer to meet the suction pipe with the pump. Mount the reducer flat
side up. Elbows must be a minimum of ten diameters from the suction flange.
CAUTION!
Never operate pump with discharge valve
closed.
The discharge piping should include isolation and check valves. The check valve
prevents the pump from rotating backward. Place the check valve between the
pump and isolation valve. The isolation valve is used for priming, starting, and
shutting down the system. If you use pipe diameter increasers, place them
between the pump and the check valve.
ALIGNMENT
The alignment at the pump and drive shaft is one of the most important
considerations in the pump installation.
WARNING!
Lock out pump driver. Failure to do so
could result in serious personal injury.
TO ALIGN THE PUMP
1. Use flexible spacer couplings to achieve proper alignment.
2. Check and adjust the parallel and angular alignment to within .005 inches
prior to connecting the coupling halves.
3. Jog the motor to check rotation. Its arrow should match up with the arrow on
the pump.
4. Install a coupling guard when the pump is aligned.
Pumps in hot service will need an alignment check at operating temperatures.
STUFFING BOX
Packed Box
Braided packing is supplied as standard equipment on all pumps. Install gland
bolt nuts finger-tight only. Adjust the gland bolt nuts during start-up to achieve
40-65 drops of leakage per minute. Specific packing type is dependent on pH,
temperature, etc. of the liquid being pumped.
Table 1
Pump Model
STO MTO LTO XLO
Packing Size 7/16 5/8
Number of Rings 5
Clean and cool pumpage may be used to lubricate the packing. If the pumpage is
not suitable, you must supply an external source of lubrication.
Do not allow packing to run dry. It must
be lubricated.
See ANSI/ASME B73.1 M-1984 for
proper seal flush plans.
Cartridge Mechanical Seal
WARNING!
Determine the effects that a failure of the
mechanical seal might have on the
environment and personnel and correct
conditions to prevent personal injury.
WARNING!
Only work on seal when the pump is
locked out and the seal is depressurized.
Refer to the Burgmann installation, operating, and maintenance instructions.
Failure to do so can result in environmental damage, personal injury, and seal
malfunction and / or seal failure. Pay particular attention to paragraphs 4.2, 4.3
and 4.4.
Start Up
Read, understand and follow the Burgmann Operation section 4.0, paragraphs 4.1
and 4.2
Storage, Assembly and Disassembly
Refer to the Burgmann Seal Storage assembly and disassembly sections 3.0, 3.1,
3.2, and 3.3, paying particular attention to the seal drawing included in the
instructions.
Type 1 Mechanical Seal
TO INSTALL TYPE 1 MECHANICAL SEAL
1. MTO, LTO, XLO Slide the stuffing box cover over the shaft/sleeve. Bolt the
cover (184) to the frame adapter(108).
STO Slide the 6” or 8” stuffing box cover (184) with adapter ring (108) over
shaft and bolt to bearing.
2. Mark / scribe the shaft at the face of the stuffing box.
4. Locate the installation reference dimension on the seal installation drawing.
Normally this is the dimension from the face of the stuffing box to the rear of
the seal.
5. Mark the shaft with a felt marker or marking tool at the dimension (i.e. 1/32”).
6. Lubricate the shaft with silicon grease or soapy water. Slide the seal onto the
shaft. Line up the face of the seal with your mark and secure with set screw.
PUMPS ARE SHIPPED WITH NO OIL IN
THE BEARING FRAME! Oil must be
installed before operating the pump.
Ball bearings are very sensitive to both over and under lubrication, both being
detrimental to bearing performance. Either case is detrimental to bearing
performance. Use a thermometer to determine overheating. Excessive overheating
will reduce bearing life.
The relationship between temperature and pumpage temperature is an indication of
performance. Table 2 indicates the relationship between these temperatures.
Table 2
Degrees Fahrenheit
Pumping liquid temperature
Approximate normal line bearing temperature
60° 200° 300°
115° 140° 160°
The information shown in Table 2 is based on a room temperature of 70°F. Maximum
bearing temperature is 175°F. The temperatures shown above have a tolerance of plus
15°F. It is necessary to flush water on the shaft for liquid temperatures above 250°F.
This can be done either through a flushing gland or the stuffing box seal cage.
Oil Lubrication
Use only high quality turbine oil with rust and oxidation inhibitors. Service
temperatures determine oil viscosity. See Table 3.
Use a 300 SSU viscosity at 100° F for applications where pumping temperatures are
below 200° F. At pumping temperatures above 350° F, use 470 SSU at 100° F with
optional cooler.
Table 3
Bearing Temperature ISO Grade Viscosity at 100 Degrees F
Up to 150° F
150° F to 200° F
46 215 SSU
68 300 SSU
Above 200° F
100 470 SSU
Grease Lubrication
Regrease grease lubricated bearings with NLG1 No. 2 consistency grease for
pumpage temperatures -60° F to 350° F. Grease is not recommended for temperatures
above 350° F. Regrease bearings every three months.
Table 4
Acceptable Lubricating Oils
ISO VG 32 46 68 100
Keystone: KLC Antiwear 32 46 68 100
Lubriplate AC0 AC1 AC2 AC3
Mobil: DTE Light - Medium Heavy
Mobil: Synthetic 624 525 626 627
Phillips: Magnus 32 46 68 100
Synthetic, syndustrial mist 100
Shell: Tellus Fluids HD 32 46 68 100
Table 5
Acceptable Greases
Citgo Mystic EP2
Keystone 81EP2
Mobil Mobilux EP2
Mobil Synthetic SCH 100
TO REGREASE LUBRICATED BEARINGS
1. Wipe dirt and foreign matter from the fittings.
2. Remove grease relief plugs from the bottom of the frame.
3. Fill grease through fittings until it comes out through the relief holes.
4. Reinstall grease relief plugs.
ROTATION
TO ROTATE THE PUMP
1. Lock out power to the pump driver.
2. Remove the coupling guard and coupling.
3. Momentarily restore power and energize the motor to determine rotation.
4. Confirm that motor rotation coincides with proper pump rotation. The proper
pump rotation is counterclockwise when facing the pump’s suction. Lock out
power to pump driver.
WARNING!
Operating the pump in the opposite
rotation may dislodge the impeller
causing severe damage to the impeller
and/or casing.
5. Reinstall the coupling and coupling guard.
6. Unlock power to pump driver.
IMPELLER CLEARANCE
WARNING!
Check impeller clearance prior to starting
pump. Setting may have changed during
transit.
WARNING!
Lock out power prior to working on pump.
Impeller clearance is the measurement between the impeller vanes and the surface of
the casing. This clearance is set at .015 inches during assembly, but may need to be
adjusted before initial startup. (See APPENDIX A for detailed procedures on setting
the impeller clearance.)
PRIMING
Prior to starting a centrifugal pump, it is imperative that you prime the pump by
flooding the suction piping and casing with fluid. Priming will occur when you open
the suction isolation valve and the packing sealing liquid valve.
CAUTION!
Do not operate the pump without liquid in
the casing.
START UP
TO START UP THE PUMP
1. Rotate the pump by hand; making sure that the rotating element is spinning freely.
2. Be sure the suction valve is open.
3. Partially close the discharge valve.
CAUTION!
Do not operate the pump with the
discharge valve closed for an extended
period of time.
A gradual loss in head and/or capacity can occur. You may restore performance by
adjusting the impeller clearance, which is the measurement between the impeller
vanes and the surface of the casing.
Table 6
Temperature Impeller Clearance
200° F (93°C)
250° F (121°C)
300° F (144°C)
350° F (177°C)
400° F (204°C)
.015” (.38 mm)
.017” (.43 mm)
.019” (.48 mm)
.021” (.53 mm)
.023” (.58 mm)
FEELER GAUGE TECHNIQUE
Models 2196, 2196-LF and 2796
TO USE THE FEELER GAUGE TECHNIQUE FOR IMPELLER CLEARANCE SETTING
FOR MODELS 2196, 2196-LF & 2796
1. Lock out power to the pump driver.
2. Remove the coupling guard.
3. Loosen jacking bolts (370D) and jam nuts (423).
4. Tighten bearing housing bolts (370C) evenly, while slowly rotating the shaft until
the impeller starts to rub on the casing.
5. Using a feeler gauge, set the gap between the 3 housing bolts (370C) and the
bearing housing (134). (Refer to Table 6 for settings.)
6. Tighten jack bolts (370D) evenly until bearing housing backs out and contacts the
bearing housing bolts (370C).
7. Tighten jam nuts (423) evenly, rotating the shaft to make sure the assembly turns
freely.
TO USE THE FEELER GAUGE TECHNIQUE FOR IMPELLER CLEARANCE SETTING
FOR MODEL 2196-R
1. Lock out power to the pump driver.
2. Remove the coupling guard.
3. Remove coupling.
4. Loosen bearing housing bolts (370C) several turns.
5. Loosen jam nuts (423) and turn jackbolts (370D) evenly around several turns until
impeller contacts stuffing box cover (184). Turn shaft to ensure contact is
complete.
6. Use feeler gauge to measure the gap between the bearing frame (228) and the
bearing housing (134). Reduce the measurement by .060” and place the resulting
feeler gauge thickness between the bearing housing (134) and the bearing frame
(228).
7. Loosen the jacking bolts (370D) several turns. Tighten the locking bolts (370C) to
move the impeller away from the stuffing box cover (184) until the bearing
housing (134) snugs up the feeler gauge between the bearing housing (184) and
the bearing frame (228).
8. Turn jacking bolts (370D) in and tighten jam nuts (423) evenly, rotating the shaft
TO USE THE DIAL INDICATOR TECHNIQUE FOR IMPELLER CLEARANCE SETTING
1. Lock out power to the pump driver.
2. Remove the coupling guard.
3. Place a dial indicator with a magnetic base on the pump base plate. Place the
indicator against the end of the pump shaft or coupling face.
4. Loosen jack bolts (370D) and jam nuts (423).
5. Tighten bearing housing bolts (370C) evenly while slowly rotating the shaft until
the impeller starts to rub on the casing.
6. Set the dial indicator to zero.
7. Tighten the jack bolts (370D) evenly until they contact the frame. Continue to
tighten until the dial indicator reads the proper clearance as shown in Table 6.
8. Tighten bearing housing bolts (370C) evenly; then tighten jack bolts (370D)
evenly. Be sure the dial indicator does not move from the proper setting.
16. Remove inboard bearing (168A) and outboard bearing (112). Use an arbor press
or bearing puller to facilitate. On LTO models only, do not remove oil ring
(248A) unless it is damaged.
NOTE: Do not use a hammer, which
may cause damage to the shaft.
17. Complete disassembly of bearing frame (228). Remove oil plug (408A) (not
shown), oil sight glass (145), oil cooler inlet (408L), outlet plugs (408M), and
frame foot attachment bolt (529) and foot (241), where applicable.
18. Inspect all parts for cracks, erosion, pitting, rusting, damaged threads, corrosion,
and groove worn shaft/sleeve. Replace casing if grooves and pits are greater than
1/8” deep. Replace impeller if grooves are greater than 1/16” or even wear
exceeds 1/32”. Inspect shaft sleeve if grooved or pitted. Shaft run out or bearing
shoulder damage is cause for replacement.
ASSEMBLY PROCEDURES
(See APPENDIX D for cross-section of corresponding model.)
TO ASSEMBLE YOUR PUMP
1. Clean the bearing frame and inspect all tapped holes. Chase as needed.
2. Install oil fill plug (113A), oil sight glass (144), and frame lubrication plugs
(408H).
3. Attach bearing frame foot (241) with bolts (529), where applicable.
4. On the LTO model, install oil ring (248A) on shaft (122), if removed. Oil ring is a
press fit onto shaft.
NOTE: Use proper size drive tool to
prevent damage.
5. On the LTO
6. Install outboard bearing (112) on shaft (122).
If grease lubricated, install with shield away from impeller end.
If oil lubricated
model, install bearing cover (109C) over shaft (122).
The recommended bearing installation method is heating the bearing using an
induction heater.
WARNING!
WEAR INSULATED GLOVES when using
heater. Failure to do so can result in
serious personal injury while handling hot
bearings.
NOTE: LTO frames use duplex angular
contact bearings.
Make sure bearings are mounted
in the correct order, back to
back.
7. Install a bearing lock washer (382) on the shaft.
a. Place tang of lock washer in shaft keyway.
b. Install lock-nut (136) on shaft.
c. Using a spanner wrench, tighten the nut until snug; then bend any one of the
tangs into a lock-nut slot.
8. Install inboard bearing (168A) on shaft (122).
If grease lubricated, install with shield toward impeller end.
If oil lubricated, there should be no seals or shields.
9. Install the outboard labyrinth oil seal (332A) in the bearing housing (134). Follow
Maintenance instructions in Appendix E.
NOTE: Make sure drain slots face down.
10. Apply a thin coating of lubricant to the inside of the bearing housing (134).
11. Slide the bearing housing (134) over the outboard bearing assembly (112) and
shaft (122). Place the coupling end of the shaft into the bearing housing through
the labyrinth oil seal.
On the XLO model, install the bearing cover gasket (360G).
On the STO and MTO models, install the bearing housing snap ring (361A) into
the groove on the bore of the bearing housing. Make sure the flat side is toward
the bearing.
On the LTO
and XLO models, install bearing cover (109C) and bolts (370G).
12. Install a new O-ring (496) over the O.D. of the bearing housing.
13. Apply a thin coating of lubricant to the outside of the bearing housing (134) and
slide the assembly into the bearing frame (228).
14. Install bearing housing bolts (370C) into bearing frame (228) and install jack bolts
(370D) and jam nuts (423). Hand-tighten evenly.
15. Attach frame (228) to adapter (108).
a. Align dowel pins (469B) and adapter bolt (370B).
b. Tighten using criss-cross pattern.
c. Rotate shaft 360 degrees. It should be free.
NOTE: These steps do not apply to the
6” STO Model.
16. Set frame (228) and adapter (108) upright. Clamp to bench for safety as assembly
continues.
17. Install inboard bearing labyrinth seal in adapter frame. Make sure that the seal’s
drain slots face down. Follow Maintenance instructions in Appendix E.
18. Put anti-seize compound on the shaft and, if equipped, install shaft sleeve (126)
onto shaft (122).
19. Align anti-rotation pin with notch in sleeve (126).
For mechanical seal pumps, read manufacturer’s instructions for assembly. (See
STUFFING BOX on page 5.)
20. Install stuffing box cover (184) onto adapter with studs (353) and nuts (353A).
21. Install impeller (101) with new O-ring (496A).
22. Using an impeller wrench or strap wrench on the coupling end of the shaft,
tighten by rotating clockwise. Make sure coupling is tight to the shaft.
23. For packed pumps, install the appropriate packing (106) in the stuffing box cover
(184) according to fluid being pumped (105).
a. First, insert two packing rings into bottom of box.
b. Next, insert the lantern ring (105). Make sure to stagger packing joints and
lantern ring joint by 90 and be sure lantern ring lines up with flushing
connection. Install gland halves (107).
c. Hand-tighten nuts (353A). You must make final adjustments after the pump
has begun operation.
For mechanical seal
pumps, continue by following manufacturer’s instructions
noted in Step 19.
24. Install casing gasket (351) onto stuffing box cover (184). At this point, the power
end is ready for reinstallation into the casing or for storage for future use.
25. If returning to service, slide assembly into casing (100).
26. Install casing bolts (370) into frame to pull assembly into casing.
27. Rotate the shaft to ensure that no rubbing exists.
APPENDIX E – MAINTENANCE INSTRUCTIONS FOR INPRO/SEAL®
“VBX” BEARING ISOLATORS
DETAILS OF OPERATIONS
The Inpro Bearing Isolator is a Labyrinth type seal, which performs two functions:
1. Maintains the clean oil in the bearing housing.
2. Keeps contaminates from entering the bearing housing.
The unit is comprised of three major components: the rotor, the stator, and the
“VBX”
®
ring.
The rotor fits over the shaft and is held in place by an elastometric drive ring. The
drive ring causes the rotor to turn with the shaft and also provides a positive static
seal on the shaft. There is no metal-to-metal contact between the shaft and rotor, thus
no wear and friction concerns.
The stator is held in the housing by a nominal .002” interference fit. An o-ring
gasket on the outside diameter of the stator secures a positive seal between the stator
and the housing bore. The designed Labyrinth grooves and lube return trough on the
stator inside diameter retains the lubricant inside the bearing housing.
The rotor and stator act together to keep contamination out of the bearing housing.
The “VBX” ® ring, stator, and rotor are a unit and must not be pulled apart. If the unit
is pulled apart or comes apart, it must be replaced with a new unit. The “VBX” ® is
intended to be an inseparable design.
Repairs or replacement of seals are only necessary if excessive oil leakage is visible.
If or when the bearing housing is disassembled, it is recommended that the rotor orings be replaced.
DISASSEMBLY PROCEDURES
1. Remove shaft assembly (122) per instructions for pump disassembly. (See page
18.)
2. STO removal. Insert a bar (wood or plastic) through the outboard bearing
housing end of the bearing frame (228). Contact the inboard bearing isolator
(333A). Remove by tapping the bar or pushing with an arbor press.
MTO and XLO
removal. Disassemble the bearing frame adapter (108) per pump
disassembly instructions. Remove the inboard bearing isolator (333A) with a bar
(wood or plastic) by tapping or by pushing with an arbor press.
3. STO, MTO, and XLO outboard bearing isolator (332A) removal. Block up the
outboard bearing housing (134) on the bench, coupling the end toward the bench
top. Tap the isolator out of the housing or use an arbor press.
4. Inspect the bearing isolators. If the unit pulls apart, a new isolator is needed for
reassembly.
5. Replace the rotor 0-rings and stator 0-rings each time the units are removed from
1. STO, MTO, and XLO Inboard Isolator. Position the bearing frame (228) or
adapter (108) inboard bearing side up. Place the isolator seal (333A) stator side in
the bore. THE EXPULSION PORT MUST BE IN THE 6 O’CLOCK
POSITION. While using a block large enough to cover the entire flange of the
isolator, use an arbor press to press the stator into the bore. Press into place until
the location ramp begins. (See Figure 1.)
Figure 1
2. Outboard Isolator (332A)
Place the isolator in the bore and press into place using the same technique as in
Step 1 above.
3. Lightly lube the sleeve end of the shaft and rotor drive ring. Slide the bearing
frame (228) or adapter (108) over the shaft per assembly instructions.
4. To assemble the outboard end, tape the shaft (122) keyway with black tape. Lube
the tape and rotor drive ring. Slide the bearing housing (134) over the shaft (122)
end and continue per assembly instructions.
MAKE SURE EXPULSION PORT AND LUBE RETURN ARE IN THE 6
O’CLOCK POSITION IN FINAL ASSEMBLY.
INSTALLATION INSTRUCTIONS FOR SUMMIT PUMP
ANSI B15.1 COUPLING GUARDS
WARNING!
Before assembling or disassembling the coupling guard, de-energize the
motor, lock out the motor controller/starter, and place a caution tag at
the starter indicating that it is disconnected. Before resuming normal
pump operation, replace the coupling guard. Summit Pump assumes no
liability when these procedures are avoided.
Figure H-1
The design’s simplicity allows complete coupling guard assembly, including the end
plate (pump end), in about fifteen minutes.
ASSEMBLY PROCEDURES
TO ASSEMBLE YOUR COUPLING GUARD
NOTE: If the end plate (pump end) was
previously installed, make any
necessary adjustments to the
coupling and skip to Step 2.
1. On the STO, MTO, and LTO, align the end plate (pump end) to the bearing
frame. (Impeller adjustment is not required.)
On the XLO-X
the small slots on the end plate aligned to the impeller adjusting bolts and the
large slots clearing the bearing housing tap bolts. Then attach the end plate to the
, align the end plate (pump end) to the pump bearing housing with
Page 48
Installation, Operation, and Maintenance Manual
bearing housing using the jam nuts on the impeller adjusting bolts as shown in
Figure H-3.
After attaching the end plate to the bearing housing, check and reset the impeller
clearance as detailed in APPENDIX A - IMPELLER CLEARANCE SETTING.
NOTE: Complete the coupling
adjustments before proceeding
with the coupling guard
assembly.
Figure H-2
STO, MTO, LTO
Figure H-3
XLO-X
2. Slightly spread the bottom of the coupling guard half (pump end) and place it over
the pump end plate as shown in Figure H-4. The annular groove in the guard half
is located around the end plate. (See Figure H-5.)
3. After placing the coupling guard half (pump end) around the pump end plate,
secure it with a bolt, nut and two (2) washers through the round hole in the front
end of the guard half as shown in Figure H-6. Tighten securely. (See Figure H-7.)
Figure H-5
Figure H-6 Figure H-7
4. Slightly spread the bottom of the coupling guard half (driver end) and place it
over the coupling guard half (pump end) so that the annular groove in the
coupling guard half (driver end) faces the motor as shown in Figure H-8.
5. Place the end plate (driver end) over the motor shaft as shown in Figure H-9.
Position the end plate in the annular groove at the rear of the coupling guard half
(driver end) and secure it with a bolt, nut, and two (2) washers through the round
hole at the rear of the guard half. Finger-tighten only.
Figure H-9 Figure H-9.5
6. Adjust the length of the coupling guard to completely cover the shafts and
coupling as shown in Figure H-10, by sliding the coupling guard half (driver end)
toward the motor. After adjusting the length, secure the guard with a bolt, nut and
two (2) washers through the slotted holes at the center of the guard and tighten.
Check tightness on all of the nuts on the guard assembly.
WARNING!
Before assembling or disassembling the
coupling guard, de-energize the motor,
lock out the motor controller/starter, and
place a caution tag at the starter
indicating that it is disconnected. Before
resuming normal pump operation, replace
the coupling guard. Summit Pump
assumes no liability when these
procedures are avoided.
Figure H-10
DISASSEMBLY PROCEDURES
TO DISASSEMBLE YOUR COUPLING GUARD
It is necessary to remove the coupling guard for certain pump maintenance and
adjustments, such as coupling adjustment, impeller clearance adjustment, and so
forth. Replace the coupling guard after completing maintenance.
DO NOT resume normal pump operation while the coupling guard is removed.
NOTE: Refer to the illustrations for
assembly beginning with Figure
H-10 and working in reverse
order.
1. Remove the nut, bolt and washers from the center-slotted hole on the coupling
guard. Slide the motor end of the coupling guard half toward the pump. (See
Figure H-10.)
2. Remove the nut, bolt and washers from the driver end of the coupling guard half
and remove the end plate. (See Figure H-9.)
3. Slightly spread the bottom of the coupling guard half and lift it off. (See Figure
H-8.)
4. Remove the remaining nut, bolt and washers from the pump end of the coupling
guard half. Slightly spread the coupling guard half and lift it off. (See Figure
This concludes the coupling guard disassembly procedures.
NOTE: It is unnecessary to remove the
end plate (pump end) from the
bearing housing. If internal
pump part maintenance is
necessary, the bearing housing
tap bolts are accessible without
removing the end plate. Refer to
APPENDIX C - MAINTENANCE
AND REPAIR before removing the