Xylem 8200 User Manual
INSTRUCTION MANUAL
AC2675
REVISION C
INSTALLER: PLEASE LEAVE THIS MANUAL FOR THE OWNER’S USE.
8200 Series Base Mounted
Centrifugal Fire Pumps
TABLE OF CONTENTS
DESCRIPTION......................................................3
OPERATIONAL LIMITS .......................................3
MAXIMUM WORKING PRESSURE .....................3
SEAL OPERATING LIMITS .................................3
PACKING ......................................................3
PUMP IDENTIFICATION ......................................3
SAFETY INSTRUCTIONS ....................................4
ADDITIONAL SAFETY REQUIREMENTS:...4
ADDITIONAL SAFETY REQUIREMENTS...........5
ELECTRICAL SAFETY: ................................5
THERMAL SAFETY: .....................................5
MECHANICAL SAFETY:...............................5
INSTALLATION ....................................................6
PUMP LOCATION.........................................6
RECEIVING PUMP .......................................6
TEMPORARY STORAGE .............................7
LOCATION ....................................................7
FOUNDATION...............................................7
BASE PLATE SETTING (BEFORE PIPING) 8
GROUTING PROCEDURE ...........................8
SEE ANSI/OSHA COUPLER GUARD
REMOVAL/INSTALLATION ..................8
ALIGNMENT PROCEDURE .........................8
ANSI/OSHA COUPLER GUARD
REMOVAL/INSTALLATION ..................9
DOWELING .................................................14
SUCTION AND DISCHARGE PIPING........14
STUFFING BOX LUBRICATION.................16
PACKING ....................................................16
MAINTENANCE TIME TABLE........................... 21
TROUBLE SHOOTING ...................................... 22
CHANGING ROTATION .................................... 25
SERVICE INSTRUCTIONS ................................ 26
DISASSEMBLY AND REASSEMBLY
PROCEDURES................................... 26
DISMANTLING (PUMP WITH PACKING) .. 26
ASSEMBLY (PUMP WITH PACKING) ....... 29
APPENDIX “A” ENGINEERING DATA............. 32
APPENDIX “B” ..................................................33
EXPLODED VIEW – 8200 SERIES FIRE
PUMP .................................................. 33
REPLACEMENT PARTS LIST ...................34
INSTRUCTIONS FOR ORDERING PARTS35
APPENDIX “C” FIELD TEST REPORT ............ 36
USEFUL FORMULAS................................. 37
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,
47) 966-3700.
(8
OPERATION .......................................................18
PRE-START CHECKS ................................18
PRIMING .....................................................18
STARTING ..................................................18
OPERATING CHECKS ...............................18
FREEZING PROTECTION..........................19
FIELD TESTING..........................................19
MAINTENANCE..................................................19
GENERAL MAINTENANCE ........................19
MAINTENANCE OF PUMP DUE TO FLOOD
DAMAGE .............................................19
BEARING LUBRICATION – G
PACKING SEAL ..........................................20
CLEANING WITHOUT DISMANTLING
PUMP ..................................................20
REASE........20
2
DESCRIPTION
The 8200 Series Centrifugal Fire Pumps are
framed 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 8200 Series Centrifugal Fire
Pumps are as follows:
PUMP IDENTIFICATION
There are two identification plates on each pump.
The pump rating plate gives identification and
rating information. Figure 1 shows an example of a
typical Rating Plate.
Permanent records for this pump are referenced
by the Serial Number and it must, therefore, be
used with all correspondence to order all spare
parts 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
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.
The frame plate, shown below in Figure 2, gives
information concerning the bearings and their
lubrication. The inboard and outboard bearing
numbers refer to the bearing manufacturer’s
numbers.
FIGURE 1 – RATING PLATE
FIGURE 2 – FRAME 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 8200 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.
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 3 - 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
INSTALLATION
PUMP LOCATION
Locate the pump so there is sufficient room for
inspection, maintenance 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.
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.
NYLON SLING,
CHAIN OR WIRE
ROPE
CHOKER
HITCH
AROUND
BEARING
FRAME
FIGURE 4
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 14 for more
details on proper suction piping installation.
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
mis-aligned 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
6
“Foundation,” “Base Plate Setting,” “Grouting
Procedure,” “Alignment Procedure” and
“Doweling.”
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.
LOCATION
The pump should be installed as near the suction
supply as possible, but no less than five suction
diameters (refer to page 14, 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.
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.
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 5. 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
PIPE SLEEVE
BOLT
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.
(OPTIONAL)
WASHER
BUILT-UP CONCRETE
FOUNDATION
FIGURE 5 – FOUNDATION
7
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.
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
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.)
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 6).
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.
CONCRETE
LEVELING OF PUMP BASE
ON CONCRETE FOUNDATION.
FOUNDATION
FIGURE 6 – 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.”
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.
SEE ANSI/OSHA COUPLER GUARD
REMOVAL/INSTALLATION
(SEE BELOW)
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
8
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 runout. 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.
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).
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.
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,
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.
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.
g. Holding the guard in this position, tighten
the three capscrews.
9
ANSI/OSHA Coupling Guard Exploded View
For Typical 8200 Series Fire Pump Installation
OUTER GUARD
LOCATE SUPPORT ARM
BETWEEN OUTER GUARD ENDS.
ALIGN THE ARM WITH HOLES IN
THE OUTER GUARD AND HOLES
IN THE SADDLE BRACKET.
INNER GUARD
ATTACH SUPPORT BRACKET
TO BEARING HOUSING
SUPPORT
BRACKET
NUT
LOCKWASHER
MOTOR SADDLE
BRACKET ATTACH
TO MOTOR SADDLE
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.
Method 1 – Straight Edge Alignment for
Standard Sleeve Type Coupler with Black
Rubber Insert
(See Figure 7A)
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.
BRACKET SUPPORT
ATTACHED INSIDE HERE
IN LINE WITH BOLT
ANGULAR ALIGNMENT PARALLEL ALIGNMENT
BRACKET
SUPPORT
STRAIGHT EDGE
FEELER GAGE
INCORRECT ALIGNMENT
STRAIGHT EDGE
FEELER GAGE
CORRECT ALIGNMENT
FIGURE 7A – CHECKING ALIGNMENT
(METHOD 1)
10
Method 2 – For Orange Hytrel Insert, 3500
RPM Operation, or All Other Coupler
Types Except as Noted Below
(See Figure 7B)
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.)
c. Scribe index lines on coupling halves as
shown in Figure 7B.
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
misalignment is .004"T.I.R. per inch of
radius R (See Figure 7B).
DIAL
PARALLEL
INDICATOR
ALIGNMENT
INDEX LINE
RESILIENT
SEPARATOR
ANGULAR
ALIGNMENT
DIAL
INDICATOR
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 7H 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 7C. 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
7H.
FIGURE 7B – CHECKING ALIGNMENT
(METHOD 2)
11
FIGURE 7C – USING SPACER BAR
9. Align so that a straight edge rests within
the limits shown in Figure 7D 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 7H.
FIGURE 7E – SEATING THE GRID
14. Pack the spaces between and around the
grid with as much as coupling vendor
supplied grease as possible and wipe off
the excess until flush with the top of the
grid.
15. Position seals on hubs to line-up with
grooves in cover. Position gaskets on
flange of lower cover half and assemble
covers so that the match marks are on the
same side.
FIGURE 7D – 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.
FIGURE 7F – COVER INSTALLATION
16. If the shafts are not horizontal, or coupling
is to be used vertically, assemble cover
halves with the lug and match mark UP or
on the high side. Push gaskets in until
they stop against the seals and secure
cover halves with fasteners, tightening to
torque specified in Figure 7H. Ensure
gaskets stay in position during fastener
tightening.
12
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