Xylem 9100 User Manual
INSTRUCTION MANUAL
AC8585
REVISION C
INSTALLER: PLEASE LEAVE THIS MANUAL FOR THE OWNER’S USE.
9100 Series Base Mounted
Centrifugal Fire Pumps
TABLE OF CONTENTS
DESCRIPTION......................................................3
OPERATIONAL LIMITS .......................................3
MAXIMUM WORKING PRESSURE .....................3
SEAL OPERATING LIMITS .................................3
PACKING ......................................................3
1. GENERAL MAINTENANCE.................... 25
2. MAINTENANCE OF PUMP DUE TO
FLOOD DAMAGE ............................... 25
3. BEARING LUBRICATION – GREASE ... 25
4. PACKING SEAL...................................... 26
5. CLEANING WITHOUT DISMANTLING
PUMP .................................................. 26
MAINTENANCE TIME TABLE........................... 27
PUMP IDENTIFICATION ......................................3
SAFETY INSTRUCTIONS ....................................4
ADDITIONAL SAFETY REQUIREMENTS...........5
ELECTRICAL SAFETY .................................5
THERMAL SAFETY ......................................5
MECHANICAL SAFETY................................5
PUMP LOCATION ................................................6
INTRODUCTION...................................................7
1. PURPOSE OF MANUAL...........................7
2. WARRANTY ..............................................7
3. PUMP IDENTIFICATION ..........................7
4. INSTALLATION.........................................7
5. RECEIVING PUMP ...................................7
6. TEMPORARY STORAGE .........................7
7. LOCATION ................................................7
8. FOUNDATION...........................................8
9. BASE PLATE SETTING (BEFORE
PIPING) .................................................8
10. GROUTING PROCEDURE .....................9
11. SEE ANSI/OSHA COUPLER GUARD
REMOVAL/INSTALLATION ..................9
12. ALIGNMENT PROCEDURE ...................9
13. ANSI/OSHA COUPLER GUARD
REMOVAL/INSTALLATION ..................9
14. DOWELING...........................................15
15. SUCTION AND DISCHARGE PIPING..15
16. STUFFING BOX LUBRICATION...........18
17. PACKING ..............................................18
SERVICE INSTRUCTIONS ................................ 28
DISASSEMBLY AND REASSEMBLY
PROCEDURES................................... 28
DISMANTLING (PUMP WITH PACKING) .. 28
ASSEMBLY (PUMP WITH PACKING) ....... 30
APPENDIX “A” ..................................................33
EXPLODED VIEW ......................................33
REPLACEMENT PARTS LIST ...................34
LIMITED END FLOAT COUPLINGS .......... 35
ORDERING PARTS.................................... 35
DEALER SERVICING ........................................36
NOTE
The information contained in this book is intended
to assist operating personnel by providing
information on the characteristics of the purchased
equipment.
It does not relieve the user of their responsibility of
using accepted engineering practices in the
installation, operation, and maintenance of this
equipment.
Any further questions, contact AC Fire Pump,
(847) 966-3700.
OPERATION .......................................................20
1. PRE-START CHECKS ............................20
2. PRIMING .................................................20
3. STARTING ..............................................20
4. OPERATING CHECKS ...........................20
5. FREEZING PROTECTION......................21
CHANGING ROTATION.....................................22
MAINTENANCE..................................................25
2
DESCRIPTION
The 9100 Series Centrifugal Fire Pumps are frame
mounted pumps which feature – high efficiency,
rugged construction, compact design, foot
mounted volute and regreasable bearings. These
features, along with the horizontal split case, make
installation, operation and service easy to perform.
OPERATIONAL LIMITS
Unless special provisions have been made for
your pump by AC Fire Pump Systems, the
operational limits for 9100 Series Centrifugal Fire
Pumps are as follows:
MAXIMUM WORKING PRESSURE
Listed on pump nameplate.
SEAL OPERATING LIMITS
PACKING
PH Limitations 7-9; Temperature Range 0 to
+200°F
For use on open or closed systems which require
a large amount of makeup water, as well as
systems which are subjected to widely varying
chemical conditions and solids buildup.
PUMP IDENTIFICATION
Permanent records for this pump are referenced
by the Serial Number and it must, therefore, be
used with all correspondence to order all spare
and replacement parts. The fourth digit indicates
the specific pump on orders for more than one
pump. For example, if an order called for six
pumps, all pumps would have the same first three
sets of digits and the last digit will change to
, 03-
identify each of the six. (e.g. 03-123456-01123456-01-02
, etc.)
01
FIGURE 1 – RATING PLATE
3
SAFETY INSTRUCTIONS
SAFETY
INSTRUCTIONS
This safety alert symbol will be used in this manual
and on the pump safety instruction decals to draw
attention to safety related instructions. When used
the safety alert symbol means ATTENTION!
BECOME ALERT! YOUR SAFETY IS INVOLVED!
FAILURE TO FOLLOW THE INSTRUCTIONS
MAY RESULT IN A SAFETY HAZARD.
Your 9100 Series Centrifugal Fire Pump should
have the following safety instruction decals
displayed. If the decals are missing or illegible
contact your local AC Fire Pump Systems
representative for a replacement.
WARNING
ROTATING COMPONENTS
DISCONNECT AND LOCKOUT
POWER BEFORE SERVICING.
DO NOT OPERATE WITHOUT
ALL GUARDS IN PLACE.
CONSULT INSTALLATION
AND SERVICE INSTRUCTION
SHEET BEFORE OPERATING
OR SERVICING.
FAILURE TO FOLLOW
INSTRUCTIONS COULD
RESULT IN INJURY
OR DEATH.
Additional Safety Requirements:
1. Electrical connections to be made by
qualified Electrician in accordance with all
national, state and local codes.
2. Motor must have properly sized starter
with properly sized heaters to provide
overload and undervoltage protection.
3. If pump, motor or piping are operating at
extremely high or low temperatures,
guarding or insulation is required.
4. The maximum working pressure of the
pump is listed on the pump nameplate, do
not exceed this pressure.
RATING PLATE
WARNING
EYEBOLTS OR LIFTING
LUGS IF PROVIDED ARE
FOR LIFTING ONLY THE
COMPONENTS TO WHICH
THEY ARE ATTACHED.
FAILURE TO FOLLOW
INSTRUCTIONS COULD
RESULT IN INJURY
OR DEATH.
CAUTION CAUTION
COUPLER ALIGNMENT IS
REQUIRED! LEVEL AND
GROUT PUMP BEFORE USE!
CHECK ALIGNMENT BEFORE
GROUTING, AFTER SYSTEM
IS FILLED, AFTER SERVICING
PUMP, AND AS REQUIRED.
CONSULT THE SERVICE
INSTRUCTIONS FOR DETAILS.
FAILURE TO FOLLOW THESE
INSTRUCTIONS COULD
RESULT IN INJURY OR
PROPERTY DAMAGE.
FIGURE 2 – SAFETY INSTRUCTION DECALS
4
DO NOT RUN PUMP DRY,
SEAL DAMAGE MAY OCCUR.
INSPECT PUMP SEAL
REGULARKY FOR LEAKS,
REPLACE AS REQUIRED.
FOR LUBRICATION
REQUIREMENTS, CONSULT
SERVICE INSTRUCTIONS.
FAILURE TO FOLLOW
INSTRUCTIONS COULD
RESULT IN INJURY OR
PROPERTY DAMAGE.
ADDITIONAL SAFETY REQUIREMENTS
ELECTRICAL SAFETY
WARNING: Electrical Shock Hazard
Electrical connections to be made by a
qualified electrician in accordance with all
applicable codes, ordinances, and good practices.
Failure to follow these instructions could result in
serious personal injury or death, and property
damage.
WARNING: Electrical Overload Hazard
Three phase motors must have properly
sized heaters to provide overload and under
voltage protection. Single-phase motors have
built-in overload protectors. Failure to follow these
instructions could result in serious personal injury
or death, and property damage.
THERMAL SAFETY
WARNING: Extreme Temperature
Hazard
If pump, motor, or piping is operating at extremely
high or low temperature, guarding or insulation is
required. Failure to follow these instructions could
result in serious personal injury or death, and
property damage.
MECHANICAL SAFETY
WARNING: Unexpected Startup Hazard
Disconnect and lockout power before
servicing. Failure to follow these instructions could
result in serious personal injury or death, and
property damage.
WARNING: Excessive System Pressure
Hazard
The maximum working pressure of the pump is
listed on the nameplate, do not exceed this
pressure. Failure to follow these instructions could
result in serious personal injury or death, and
property damage.
WARNING: Excessive Pressure Hazard
Volumetric Expansion
WARNING
The heating of water and other fluids causes
volumetric expansion. The associated forces may
cause failure of system components and release
of high temperature fluids. Installing properly sized
and located compression tanks and pressure relief
valves will prevent this. Failure to follow these
instructions could result in serious personal injury
or death, and property damage.
CAUTION
WARNING
5
PUMP LOCATION
Locate the pump so there is sufficient room for
inspection, main-tenance and service. If the use of
a hoist or tackle is needed, allow ample head
room.
WARNING: Falling Objects Hazard
Eyebolts or lifting lugs, if provided, are for
lifting only the components to which they are
attached. Failure to follow these instructions could
result in serious personal injury or death, or
property damage.
If lifting base pump is required, use a nylon string,
chain, or wire rope, hitch around both bearing
supports. If lifting of the entire pump is required,
do so with slings placed under the base rails as
shown.
CHOKER
HITCH
AROUND
BEARING
FRAME
NYLON SLING,
CHAIN OR WIRE
ROPE
Care must be taken to size equipment for
unbalanced loads which may exist if the motor is
not mounted on the base at the time of lifting.
Motor may or may not be mounted at the factory.
Pump, base, and driver assemblies where the
base length exceeds 100 inches may not be safe
to lift as a complete assembly. Damage to the
baseplate may occur. If the driver has been
mounted on the baseplate at the factory, it is safe
to lift the entire assembly. If the driver has not
been mounted at the factory, and the overall
baseplate length exceeds 100 inches, do not lift
the entire assembly consisting of pump, base, and
driver. Instead, lift the pump and baseplate to its
final location without the driver. Then mount the
driver.
The best pump location for sound and vibration
absorption is on a concrete floor with subsoil
underneath. If the pump location is overhead,
special precautions should be undertaken to
reduce possible sound transmission. Consult a
sound specialist.
FIGURE 3
If the pump is not on a closed system, it should be
placed as near as possible to the source of the
liquid supply, and located to permit installation with
the fewest number of bends or elbows in the
suction pipe.
The installation must be evaluated to determine
that the Net Positive Suction Head Available
(NPSHA) meets or exceeds the Net Positive
Suction Head Required (NPSHR), as stated by the
pump performance curve. See page 15 for more
details on proper suction piping installation.
6
INTRODUCTION
1. PURPOSE OF MANUAL
This manual is furnished to acquaint you with
some of the practical ways to install, operate,
and maintain this pump. Read it completely
before doing any work on your unit and keep
it handy for future reference.
Equipment cannot operate well without
proper care. To keep this unit at top
efficiency, follow the recommended
installation and servicing procedures outlined
in this manual.
2. WARRANTY
Refer to your local representative for warranty
coverage.
3. PUMP IDENTIFICATION
All pumps are designated by Serial Number,
Model Number, and Size. This information is
stamped on an identification plate which is
mounted on the pump.
4. INSTALLATION
5. RECEIVING PUMP
Check pump for shortages and damage
immediately upon arrival. (An absolute must.)
Prompt reporting to the carrier’s agent with
notations made on the freight bill, will
expedite satisfactory adjustment by the
carrier.
Pumps and drivers normally are shipped from
the factory mounted and painted with primer
and one finish coat. Couplings may be either
completely assembled or have the coupling
hubs mounted on the shafts and the
connecting members removed. When the
connecting members are removed, they will
be packaged in a separate container and
shipped with the pump or attached to the
base plate.
Shafts are in alignment when the unit is
shipped; however, due to shipping, the
pumps may arrive misaligned and, therefore,
alignment must be established during
installation. AC Fire Pump Systems has
determined that proper and correct alignment
can only be made by accepted erection
practices. Refer to the following paragraphs
on “Foundation,” “Base Plate Setting,”
“Grouting Procedure,” “Alignment Procedure”
and “Doweling.”
6. TEMPORARY STORAGE
If the pump is not to be installed and operated
soon after arrival, store it in a clean, dry place
having slow, moderate changes in ambient
temperature. Rotate the shaft periodically to
coat the bearings with lubricant and to retard
oxidation, corrosion, and to reduce the
possibility of false brinelling of the bearings.
7. LOCATION
The pump should be installed as near the
suction supply as possible, but no less than
five suction diameters (refer to page 15,
suction and discharge piping section) with the
shortest and most direct suction pipe
practical. The total dynamic suction lift (static
lift plus friction losses in suction line) should
not exceed the limits for which the pump was
sold.
The pump must be primed before starting.
Whenever possible, the pump should be
located below the fluid level to facilitate
priming and assure a steady flow of liquid.
This condition provides a positive suction
head on the pump. It is also possible to prime
the pump by pressurizing the suction vessel.
When installing the pump, consider its
location in relation to the system to assure
that sufficient Net Positive Suction Head
(NPSH) at pump suction is provided.
Available NPSH must always equal or exceed
the required NPSH of the pump.
The pump should be installed with sufficient
accessibility for inspection and maintenance.
A clear space with ample head room should
be allowed for the use of an overhead crane
or hoist sufficiently strong to lift the unit.
NOTE: Allow sufficient space to be able to
dismantle pump without disturbing the pump
inlet and discharge piping.
Select a dry place above the floor level
wherever possible. Take care to prevent pump
from freezing during cold weather when not in
operation. Should the possibility of freezing
exist during a shut-down period, the pump
should be completely drained, and all passages
and pockets where liquid might collect should
be blown out with compressed air.
Make sure there is a suitable power source
available for the pump driver. If motor driven,
electrical characteristics should be identical to
those shown on motor data plate.
7
8. FOUNDATION
A substantial foundation and footing should
be built to suit local conditions. The
foundation must be substantial enough to
absorb vibration. (Hydraulic Institute
Standards recommends the foundation weigh
at least five (5) times the weight of the pump
unit.) It must form a permanent and rigid
support for the baseplate. This is important in
maintaining the alignment of the flexibly
coupled unit.
ALLOW 1" FOR
SHIMS. PLACE ON
BOTH SIDES OF
ANCHOR BOLTS.
APPROX.
1" GAP
NOTE:
TO KEEP SHIMS IN
PLACE ALLOW GROUT
TO FLOW AROUND
HOLD DOWN LUGS.
GROUT ONLY TO
TOP OF BASE RAIL.
PUMP BASE
RAIL
GROUT
The foundation should be poured without
interruption to within 1/2 to 1-1/2 inches of the
finished height. The top surface of the
foundation should be well scored and
grooved before the concrete sets; this
provides a bonding surface for the grout.
Foundation bolts should be set in concrete as
shown in Figure 4. An optional 4-inch long
tube around the bolts at the top of the
concrete will allow some flexibility in bolt
alignment to match the holes in the base
plate. Allow enough bolt length for grout,
shims, lower base plate flange, nuts and
washers. The foundation should be allowed
to cure for several days before the base plate
is shimmed and grouted.
FOUNDATION
BOLT
WASHER
(OPTIONAL)
PIPE SLEEVE
BUILT-UP CONCRETE
FOUNDATION
FIGURE 4 – FOUNDATION
9. BASE PLATE SETTING (BEFORE PIPING)
NOTE: This procedure assumes that a
concrete foundation has been prepared with
anchor or hold down bolts extending up ready
to receive unit. It must be understood that
pump and motor have been mounted and
rough aligned at the factory. If motor is
to be field mounted, consult factory for
recommendations. AC Fire Pump
Systems cannot assume responsibility for
final alignment.
CONCRETE
LEVELING OF PUMP BASE
ON CONCRETE FOUNDATION.
FOUNDATION
FIGURE 5 – SETTING BASE PLATE AND
GROUTING
a. Use blocks and shims under base for
support at anchor bolts and midway
between bolts, to position base
approximately 1" above the concrete
foundation, with studs extending through
holes in the base plate.
b. By adding or removing shims under the
base, level and plumb the pump shaft and
flanges. The base plate does not have to
be level.
c. Draw anchor nuts tight against base, and
observe pump and motor shafts or
coupling hubs for alignment. (Temporarily
remove coupling guard for checking
alignment.)
d. If alignment needs improvement, add
shims or wedges at appropriate positions
under base, so that retightening of anchor
nuts will shift shafts into closer alignment.
Repeat this procedure until a reasonable
alignment is reached.
NOTE: Reasonable alignment is defined as
that which is mutually agreed upon by pump
contractor and the accepting facility (final
operator). Final alignment procedures are
covered under “Alignment Procedures.”
e. Check to make sure the piping can be
aligned to the pump flanges without
placing pipe strain on either flange.
f. Grout in base plate completely (See
“Grouting Procedure”) and allow grout to
dry thoroughly before attaching piping to
pump. (24 hours is sufficient time with
approved grouting procedure.)
8
10. GROUTING PROCEDURE
Grout compensates for uneven foundation,
distributes weight of unit, and prevents
shifting. Use an approved, non-shrinking
grout, after setting and leveling unit (See
Figure 5).
a. Build strong form around the foundation to
contain grout.
b. Soak top of concrete foundation
thoroughly, then remove surface water.
c. Base plate should be completely filled with
grout.
d. After the grout has thoroughly hardened,
check the foundation bolts and tighten if
necessary.
e. Check the alignment after the foundation
bolts are tightened.
f. Approximately 14 days after the grout has
been poured or when the grout has
thoroughly dried, apply an oil base paint to
the exposed edges of the grout to prevent
air and moisture from coming in contact
with the grout.
11. SEE ANSI/OSHA COUPLER GUARD
REMOVAL/INSTALLATION
(page 9)
12. ALIGNMENT PROCEDURE
NOTE: A flexible coupling will only
compensate for small amounts of
misalignment. Permissible misalignment will
vary with the make of coupling. Consult
coupling manufacturer’s data when in doubt.
Allowances are to be made for thermal
expansion during cold alignment, so that the
coupling will be aligned at operating
temperature. In all cases, a coupling must be
in alignment for continuous operation. Even
though the coupling may be lubricated,
misalignment causes excessive wear,
vibration, and bearing loads that result in
premature bearing failure and ultimate seizing
of the pump. Misalignment can be angular,
parallel, or a combination of these, and in the
horizontal and vertical planes. Final alignment
should be made by moving and shimming the
motor on the base plate, until the coupling
hubs are within the recommended tolerances
measured in total run-out. All measurements
should be taken with the pump and motor foot
bolts tightened. The shaft of sleeve bearing
motors should be in the center of its
mechanical float.
NOTE: Proper alignment is essential for
correct pump operation. This should be
performed after base plate has been properly
set and grout has dried thoroughly according
to instructions. Final alignment should be
made by shimming driver only. Alignment
should be made at operating temperatures.
WARNING: Unexpected Start-up Hazard
Disconnect and lock out power before
servicing. Failure to follow these instructions could
result in serious personal injury or death and
property damage.
13. ANSI/OSHA COUPLER GUARD
REMOVAL/INSTALLATION
WARNING: Unexpected Start-up Hazard
Disconnect and lock out power before
servicing. Failure to follow these instructions could
result in serious personal injury or death and
property damage.
NOTE: Do not spread the inner and outer
guards more than necessary for guard
removal or installation. Over spreading the
guards may alter their fit and appearance.
Removal
a. Remove the two capscrews that hold the
outer (motor side) coupler guard to the
support bracket(s).
b. Spread the outer guard and pull it off the
inner guard.
c. Remove the capscrew that holds the inner
guard to the support bracket.
d. Spread the inner guard and pull it over the
coupler.
Installation
a. Check coupler alignment before
proceeding. Correct if necessary.
b. Spread the inner guard and place it over
the coupler.
c. With the inner guard straddling the
support bracket, install a capscrew
through the hole (or slot) in the support
bracket and guard located closest to the
pump. Do not tighten the capscrew.
d. Spread the outer guard and place it over
the inner guard.
9
e. Install the outer guard capscrews by
following the step stated below which
pertains to your particular pump:
i. For pumps with a motor saddle support
bracket: Ensure the outer guard is
straddling the support arm, and install
but do not tighten the two remaining
capscrews.
ii. For pumps without a motor saddle
support bracket: Insert the spacer
washer between the holes located
closest to the motor in the outer guard,
ANSI/OSHA Coupling Guard Exploded View
For Typical 9100 Series Fire Pump Installation
OUTER GUARD
and install, but do not tighten, the two
remaining capscrews.
f. Position the outer guard so it is centered
around the shaft, and so there is less than
a 1/4" of the motor shaft exposed. On
guards that utilize a slotted support
bracket, the inner guard will have to be
positioned so there is only a 1/4" of the
pump shaft exposed.
g. Holding the guard in this position, tighten
the three capscrews.
INNER GUARD
ATTACH SUPPORT BRACKET
TO BEARING HOUSING
LOCATE SUPPORT ARM
BETWEEN OUTER GUARD ENDS.
ALIGN THE ARM WITH HOLES IN
THE OUTER GUARD AND HOLES
IN THE SADDLE BRACKET.
NUT
LOCKWASHER
MOTOR SADDLE
BRACKET ATTACH
TO MOTOR SADDLE
BRACKET SUPPORT
CAPSCREW
FLAT WASHER
SPACER WASHER
THIS OPTION USED IN PLACE OF SPACER WHERE
OVERALL LENGTH OF GUARD EXCEEDS 12 INCHES
OR GUARD WITH IS OVER 10 INCHES ACROSS
THE FLATS.
ATTACHES INSIDE HERE
IN LINE WITH BOLT
BRACKET
SUPPORT
SUPPORT
BRACKET
10
Method 1 – Straight Edge Alignment for
Standard Sleeve Type Coupler with Black
Rubber Insert
(See Figure 6A)
Proceed with this method only if satisfied that
face and outside diameters of the coupling
halves are square and concentric with the
coupling borers. If this condition does not
exist or elastomeric couplings do not make
this method convenient, use Method 2.
1. Check angular misalignment using a
micrometer or caliper. Measure from the
outside of one flange to the outside of the
opposite flange at four points 90° apart.
DO NOT ROTATE COUPLER.
Misalignment up to 1/64" per inch of
coupler radius is permissible.
2. At four points 90° apart (DO NOT
ROTATE COUPLER), measure the
parallel coupler misalignment by laying a
straight edge across one coupler half and
measuring the gap between the straight
edge and opposite coupler half. Up to a
1/64" gap is permissible.
STRAIGHT EDGE
DIAL
PARALLEL
INDICATOR
ALIGNMENT
INDEX LINE
RESILIENT
SEPARATOR
ANGULAR
ALIGNMENT
DIAL
INDICATOR
FIGURE 6B - CHECKING ALIGNMENT
(Method 2)
Method 2 – For Orange Hytrel Insert, 3500
RPM Operation, or All Other Coupler
Types Except as Noted Below
(See Figure 6B)
a. Make sure each hub is secured to its
respective shaft and that all connecting
and/or spacing elements are removed at
this time.
b. The gap between the coupling hubs is set
by the manufacturer before the units are
shipped. However, this dimension should
be checked. (Refer to the coupling
manufacturer’s specifications supplied
with the unit.)
FEELER GAGE
ANGULAR ALIGNMENT PARALLEL ALIGNMENT
INCORRECT ALIGNMENT
STRAIGHT EDGE
FEELER GAGE
CORRECT ALIGNMENT
FIGURE 6A – CHECKING ALIGNMENT
(Method 1)
c. Scribe index lines on coupling halves as
shown in Figure 6B.
d. Mount dial indicator on one hub as shown
for parallel alignment. Set dial to zero.
e. Turn both coupling halves so that index
lines remain matched. Observe dial
reading to see whether driver needs
adjustment (See paragraph i below).
f. Mount dial indicator on one hub as shown
for angular alignment. Set dial to zero.
g. Turn both coupling halves so that index
lines remain matched. Observe dial
reading to see whether driver needs
adjustment (See paragraph i below).
h. Assemble coupling. Tighten all bolts and
set screw(s). It may be necessary to
repeat steps c through f for a final check.
i. For single element couplings, a
satisfactory parallel misalignment is
.004"T.I.R., while a satisfactory angular
11
misalignment is .004"T.I.R. per inch of
radius R (See Figure 6B).
Grid Couplings
NOTE: The following procedure is intended
for mounting and alignment of Rexnord
Industries, LLC. and Clarke Fire Protection
Products, Inc., Tapered Grid Couplings.
Adequate lubrication is essential for
satisfactory operation. Grease supplied by
the coupling manufacturer is highly
recommended. Other greases to be used
should be approved by the coupling
manufacturer.
Alignment is shown using a spacer bar and
straight edge. Rexnord Industries, LLC. and
Clarke Fire Protection Products, Inc. state
this practice has been proven for many
industrial applications. Superior alignment
can be achieved through the use of dial
indicators as shown above.
1. Clean all metal parts using non-flammable
solvent.
2. Lightly coat seals with coupling vendor
supplied grease and place on shafts
before mounting shaft hubs.
3. Install keys and mount hubs with flange
faces flush with shaft ends or as otherwise
specified.
4. Reposition hubs on shafts as required to
achieve the required hub gap shown in
Figure 6H or otherwise specified. The
length of engagement on each shaft
should be roughly equal to the shaft
diameter.
5. Tighten setscrews.
6. Bring the pump and motor halves of the
coupler into approximate height alignment,
by placing equal amounts of shims under
all the motor feet.
7. Tighten the motor bolts.
8. Use a spacer bar equal in thickness to the
gap specified in Figure 6C. Insert bar, as
shown below, to same depth at 90°
intervals and measure clearance between
bar and hub face with feeler gauges. The
difference in minimum and maximum
measurements must not exceed the
angular installation limits shown in Figure
6H.
FIGURE 6C – USING SPACER BAR
9. Align so that a straight edge rests within
the limits shown in Figure 6D on both
hubs as shown below and also at 90°
intervals without rotating the coupling.
Check with feelers. The clearance must
not exceed the PARALLEL OFFSET
installation limits specified in Figure 6H.
FIGURE 6D – USING STRAIGHT EDGE
10. If adjustment is needed, loosen the motor
bolts and add (or remove) an equal
amount of shims under each motor foot to
align the height. To correct side
misalignment, strike the side of the motor
foot with a mallet.
11. Tighten the motor bolts and check again.
If a correction is made, re-check alignment
in all
directions. Repeat this process until
the desired result is obtained.
12. Pack gap and grooves with coupling
vendor supplied grease before inserting
grid. When grids are furnished in two or
more segments, install them so that all cut
ends extend in the same direction as
shown below. This will ensure correct grid
contact with non-rotating pin in cover
halves.
13. Spread the grid slightly to pass over the
coupling teeth and seat with a soft mallet.
12
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