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INSTALLATION OF PUMP ON ENGINE
• Lift pump with suitable lifting apparatus and align
pump shaft with coupling. End of pump shaft has a pilot
diameter which epermits wasy engagement of pump
shaft into coupling.
• Reach into pump suction opening and rotate impeller
slightly until the shaft will engage the coupling. Verify
that there is no gap between bracket and flywheel
housing faces. Rotate pump as necessary to align
bracket holes with engine. Install capscrews and bolt
pump end securely to engine.
NOTE: If any interference, or incompatibility of parts is
detected during installation, DO NOT proceed
with assembly. Direct the problem to your
nearest Goulds distributor.
• Mount the pump to the engine using the bolts and
lock-washers provided, torqued as follows in a crossing
sequence:
SAE #2, #3, #4, #5 – 20 lbs.-ft. (27 N . m)
SAE #1 – 50 lbs.-ft. (68 N . m)
• Install coupling guards (501N).
• Bolt motor adapter (3) to the rigid support described
above.
COUPLING ALIGNMENT
WARNING
FAILURE TO DISCONNECT AND
LOCKOUT ELECTRICAL POWER
BEFORE ATTEMPTING ANY
MAINTENANCE CAN CAUSE
SEVERE PERSONAL INJURY.
Hazardous machinery
can cause personal
injury or death.
FRAME-MOUNTED UNITS ONLY
• Alignment MUST be checked prior to running. See
Figure 7.
Figure 7
• 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 di-
ameter of the other hub. Parallel alignment is achieved
when reading is 0.010" (0.254 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
0.020" (0.508 mm) TIR, or less.
• Final alignment is achieved when parallel and angular re-
quirements are satisfied with motor hold-down bolts tight.
All manuals and user guides at all-guides.com
Parallel
Angular
NOTICE: ALWAYS RECHECK BOTH ALIGNMENTS
AFTER MAKING ANY MECHANICAL
ADJUSTMENTS.
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.
PIPING – SUCTION
• For suction lifts over 10 ft. (3 m) and liquid temperatures
over 120° F (49° C), consult pump performance curve for
net positive suction head required (NPSH
• If a pipe size larger than pump suction is required, an ec-
centric pipe reducer, with the straight side up, MUST be
installed at the pump suction.
• If pump is installed below the liquid source, install a gate
valve in the suction for pump inspection and mainte-
nance.
NOTICE: DO NOT USE THE GATE VALVE TO
THROTTLE PUMP. THIS MAY CAUSE LOSS
OF PRIME, EXCESSIVE TEMPERATURES
AND DAMAGE TO PUMP, VOIDING
WARRANTY.
• If the pump is installed above the liquid source, the fol-
lowing MUST be provided:
• To avoid air pockets, no part of the piping should be
above the pump suction connection.
• Slope the piping upward from liquid source.
• Use a foot valve or check valve ONLY if necessary for
priming or to hold prime during intermittent duty.
• The suction strainer or suction bell MUST be at least
3 times the suction pipe diameter area.
• Insure that the size and minimum submergence over suc-
tion inlet is sufficient to prevent air from entering pump
through a suction vortex. See Figures 8 through 11.
H min.
---------
D
---------
Figure 8
3.0D
min.
1.5D
H min.
min.
min.
D
D
D
2
Figure 10
).
R
H min.
D
Figure 9
H
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
V
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
V = Velocity in feet per second
=GPM x 0.321 GPM x 0.4085
2
Area
D
Figure 11
7
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