Xylem IM100 Model SFH/SFC - Manual (Page 3)

3
CLOSE-COUPLED UNITS
• Units may be installed horizontally, inclined or vertically with
the motor above the pump.
• The motor feet MUST be bolted to a substantial surface
(horizontal or vertical) that is capable of complete and rigid
support for the pump and motor.
• For vertical operation, the motor should be fitted with a drip
cover or otherwise protected against liquid entering the
motor (rain, spray, condensation, etc.)
NOTICE: DO NOT INSTALL WITH
MOTOR BELOW PUMP. ANY
LEAKAGE OR CONDENSATION
WILL AFFECT THE MOTOR.
FRAME-MOUNTED UNITS
• A flat substantial foundation surface MUST be provided to
avoid distortion and/or strain when tightening the foundation
bolts. A rubber mounting is acceptable to reduce noise or
excessive vibration.
• Tighten motor hold-down bolts BEFORE connecting piping
to pump.
Figure 3
• It is recommended that the baseplate be grouted to a
foundation with solid footing. Refer to Figure 3.
• Place unit in position on wedges located at four points, two
below approximate center of driver and two below
approximate center of pump. Adjust wedges to level unit.
Level or plumb suction and discharge connections.
• Make sure bedplate is not distorted and final coupling
alignment can be made within the limits of movement of
motor and by shimming, if necessary.
• Tighten foundation bolts finger tight and build dam around
foundation. Pour grout under bedplate making sure the areas
under the pump and motor feet are filled solid. Allow grout
to harden 48 hours before fully tightening foundation bolts.
• Tighten pump and motor hold-down bolts before aligning
shaft or connecting the piping to pump.
• Allow grout to harden for 48 hours before tightening 4
foundation bolts.
3. Coupling Alignment
1. No field alignment is necessary on close-coupled pumps.
FAILURE TO DISCONNECT
AND LOCKOUT ELECTRICAL
POWER BEFORE ATTEMPTING
ANY MAINTENANCE CAN
CAUSESEVERE PERSONAL
INJURY.
FRAME-MOUNTED UNITS ONLY
• Alignment MUST be checked prior to running. See Figure 4.
Figure 4
• Tighten all hold-down bolts before checking alignment.
• If realignment is necessary, always move the motor. Shim
as required.
• Parallel misalignment, shafts with axis parallel but not
concentric. Place dial indicator on one hub and rotate this
hub 360
°
while taking readings on the outside diameter of
the other hub. Parallel alignment is achieved when reading is
0.005" (0.127 mm) TIR, or less.
• Angular misalignment, shaft with axis concentric but not
parallel. Place dial indicator on one hub and rotate this hub
360
°
while taking readings on the face of the other hub.
Angular alignment is achieved when reading is 0.005"
(0.127 mm) TIR, or less.
• Final alignment is achieved when parallel and angular
requirements are satisfied with motor hold-down bolts tight.
NOTICE: ALWAYS RECHECK BOTH
ALIGNMENTS AFTER MAKING ANY
MECHANICAL ADJUSTMENTS.
4. Piping
• Piping should be no smaller than pump’s discharge and
suction connections and kept as short as possible, avoid-
ing unnecessary fittings to minimize friction losses. See
Table 1.
• All piping MUST be independently supported and
MUST NOT place any piping loads on the pump.
NOTICE: DO NOT FORCE PIPING INTO PLACE
AT PUMP SUCTION AND DISCHARGE
CONNECTIONS.
• All pipe joints MUST be airtight.
SUCTION PIPING
1. Low static lift and short, direct suction piping is
desired. For suction lift over 15 feet, consult pump
performance curve for Net Positive Suction Head
Required.
2. Suction pipe size must be at least equal to suction
connection of pump.
3. If larger pipe is used, an eccentric pipe reducer (with
straight side up) must be used at the pump.
Sleeve
Washer
Lug
Top of foundation –
clean and wet down
Grout
Leveling wedges or shims – left in place
Base Grout hole ( 1 ⁄
4 ”)
Finished grouting
( 1 ⁄
2 to 3 ⁄
4 ”)
Allowance
for leveling
Wood
frame
Hazardous machinery
can cause personal
injury or death.
WARNING
Parallel
Angular