RUTHMAN Gusher Pumps 7071 Series User manual

instruction manual
instruction manual
7071 SERIES
ANSI STANDARD
DIMENSION AND VORTEX
PROCESS INDUSTRY
PUMPS
GUSHER PUMPS, INC.
115 INDUSTRIAL DRIVE
WILLIAMSTOWN, KY 41097
PHONE: [phone]
FAX: [phone]
www.gusher.com
MAINTENANCE • INSTALLATION • OPERATIONS

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SAFETY APPAREL
• Insulated work gloves when handling hot bearings or
using bearing heater
• Heavy work gloves when handling parts that have sharp
edges, especially impellers
• Safety glasses (with side shields) to protect eyes,
especially in machine shop areas
• Steel-toed shoes to protect feet when handling parts,
heavy tools, etc.
• Any other equipment needed to protect against fluids
COUPLING GUARDS
• Never operate a pump without coupling guards properly
installed
FLANGED CONNECTIONS
• Never force piping to make connection with a pump
• Use only fasteners of proper size and material
• Ensure there are no missing fasteners
• Beware of corroded or loose fasteners
PUMP SAFETY TIPS
OPERATION
• Do not operate below minimum rated flow, or with
suction/discharge valves closed
• Do not open vent or drain valves, or remove plugs
while the system is pressurized
MAINTENANCE SAFETY
• Always lockout power
• Ensure pump is isolated from the system and pres-
sure is relived before disassembling pump, removing
plugs, or disconnecting piping
• Use proper lifting and supporting equipment to pre-
vent serious injury
• Observe proper decontamination procedures
• Know and follow company safety regulations
• Never apply heat to remove impeller
FOREWORD
The design, craftsmanship, and materials used in Gusher pumps provides for optimum performance and long, trouble-
free service. As with any mechanical device, proper use and periodic maintenance will enhance the performance and life
of your pump. This manual is provided as a guideline for proper installation, operation and maintenance. THIS MANUAL
MUST BE READ AND UNDERSTOOD BEFORE INSTALLING AND OPERATING ANY 7071 SERIES ANSI STANDARD DI-
MENSION PUMP.
GUSHER PUMPS INC. SHALL NOT BE LIABLE FOR PHYSICAL INJURY, DAMAGE OR DELAYS CAUSED BY A FAIL-
URE TO OBSERVE THE INSTRUCTIONS FOR INSTALLATION, OPERATION, AND MAINTENANCE CONTAINED IN THIS
MANUAL.
WARRANTY
Gusher Pumps, Inc. will replace or repair, within one year of shipment from our plant, any pump in our judgment that has
failed due to defects in materials or workmanship, provided the pump has been properly installed and maintained and has
not been subject to abuse. These pumps must return to Gusher Pumps, Inc. with complete history of service for inspection
and warranty consideration. Gusher Pumps, Inc. does not accept the responsibility for transportation to and from our plant.
Furthermore, we do not assume any responsibility for consequential damage or loss of production.
WARRANTY IS ONLY VALID WHEN GENUINE GUSHER PARTS ARE USED.
Supervision by an authorized Gusher representative is recommended to ensure proper installation.
Additional manuals can be obtained by contacting your local Gusher representative or by calling [phone].

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TABLE OF CONTENTS
GENERAL INFORMATION...........................................................................................4
INSTALLATION ............................................................................................................7
OPERATION ..............................................................................................................14
MAINTENANCE .........................................................................................................17
DISASSEMBLY ..........................................................................................................22
REASSEMBLY ...........................................................................................................26
APPENDIX .................................................................................................................32

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GENERAL INFORMATION
PRECAUTIONS ....................................................................................................................................5
PUMP DESCRIPTION ..........................................................................................................................5
NAMEPLATE INFORMATION ...............................................................................................................6
RECEIVING and INSPECTION .............................................................................................................7
STORAGE .......................................................................................................................................7
HANDLING......................................................................................................................................7
PRECAUTIONS
• NEVER apply heat to remove impeller. It may
explode due to trapped liquid.
• NEVER use heat to disassemble pump. Ex-
plosion could occur due to trapped liquid.
• NEVER operate pump without coupling
guard correctly installed.
• NEVER operate pump beyond the rated
conditions to which the pump was sold.
• NEVER start pump without proper prime
(sufficient liquid in pump casing).
! WARNING !
Personal injury will result if proce-
dures outlined in this manual are not
followed.
• NEVER operate pump below recommended
minimum flow or when dry.
• ALWAYS lock out power to the motor before
performing pump maintenance.
• NEVER operate pump without safety devic-
es installed.
• NEVER operate pump with discharge valve
closed.
• NEVER operate pump with suction valve
closed.
• DO NOT change conditions of service with-
out approval of an authorized Gusher repre-
sentative.
PUMP DESCRIPTION
The 7071 Series is a horizontal, open impeller
centrifugal pump that meets dimension specifi-
cations of ANSI B-73.1.
The series consists of 5 power ends and 33
pump sizes as follows:
S Frame 5 pump sizes
M Frame 18 pump sizes
MXL Frame 7 pump sizes
XL Frame 3 pump sizes

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Heavy Duty Casings - 300 psi wall thickness
increases life under corrosive and erosive con-
ditions. All sizes are self-venting with centerline
discharge. Drain plug offered as an option.
Heavy Duty Shaft - Minimum deflection in-
creases life for less maintenance.
Renewable Shaft Sleeve - Hook type sleeve
eases maintenance (easily removed) and is re-
leaved to allow for changes in temperature.
Power Frame - Heavy duty Power Frame is
sealed against contaminants to ensure long
bearing life. Water cooled for high temperature
applications.
Oil Lubrication - Oil lubrication is standard.
The oil level is maintained by a sight gauge and
power frame is vented. Oil may also be wa-
ter cooled for high temperature application all
power frames are jacketed as standard.
Heavy Duty Thrust Bearing - Double row thrust
bearing minimizes shaft end play for more ef-
fective stuffing box sealing, longer mechanical
seal life, and withstands greater axial and radial
thrust loads.
External Impeller Adjustment - Like new clear-
ance can be maintained with simple external
adjustment in just minutes to maintain original
high efficiencies.
Rabbeted Fits - Accurately machined rabbets
ensure positive alignment, longer seal life, easy
replacement of spare rotating element when
maintenance is required.
Contained Casing Gasket - Protects against
blow out.
Positive Sealing at Impeller - Teflon O-Ring
protects shaft from liquid being pumped.
Fully Open Impeller - is designed with back
pump-out vane to minimize axial thrust, and
designed to handle solids and stringy material.
Jacketed Stuffing Box - Is offered for high tem-
perature applications to increase seal or pack-
ing life in temperatures up to 500OF (260OC).
Direction of Rotation -The impeller must turn
counter-clockwise when viewed through the
suction opening of the pump.
NAMEPLATE INFORMATION
On every Gusher pump is a nameplate that pro-
vides information about the pump’s hydraulic
characteristics. This information will be used
when ordering spare or replacement parts for
your pump.

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RECEIVING and INSPECTION
Gusher Pumps, Inc. has taken great care in
preparing your pump for shipment, however,
due to circumstances beyond our control, your
shipment may be received damaged. There-
fore, we strongly recommend that you take a
few minutes to check your pump upon receipt.
Check for cracked, bent, severely misaligned
(minor misalignments almost always occur
during shipment), or even missing parts. If any
such damage has occurred, you must report it
to the delivering carrier and Gusher Pumps, Inc.
immediately.
We also recommend that you check the model
number, horsepower, current characteristics,
g.p.m., and ft. head of pump received to en-
sure that you have received the pump you or-
dered for your specific operating conditions. If
you should find some discrepancy, report it to
Gusher at once.
Storage
If your pump is not going to be installed within
six months, several precautions must be tak-
en;
1. Preservative treatment of bearings and ma-
chined surfaces is required.
2. Remove packing on pumps with packed
stuffing box, the stuffing box and shaft
sleeve must be oil lubricated to also protect
against moisture.
3. Units equipped with mechanical seals must
also be oil lubricated with an oil can through
the NPT port while rotating the shaft by
hand.
4. Pump suction and discharge ports must be
covered to prevent foreign material from
getting into the pump and causing damage
when pump is started at a later date.
5. Pump must be stored in a dry location.
6. Rotate pump shaft several times every other
month.
Handling
! WARNING !
Pump and components are heavy. Serious
physical injury or damage to equipment
could occur from failure to properly lift and
support pump. Steel-toed shoes must be
worn at all times.
Use care when moving pumps. Lifting equip-
ment must be able to sufficiently support the
entire pump. Refer to Figs. 2a, b, c for proper
lifting techniques.

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INSTALLATION
PREPARATION ....................................................................................................................................8
LOCAL/FOUNDATION.........................................................................................................................8
LEVEL BASEPLATE ....................................................................................................................... 9-10
COUPLING ALIGNMENT PROCEDURE ...........................................................................................10
ALIGNMENT CHECKS.................................................................................................................10
ALIGNMENT CRITERIA................................................................................................................11
ANGULAR ALIGNMENT...............................................................................................................11
PARALLEL ALIGNMENT ..............................................................................................................11
ALIGNMENT TROUBLESHOOTING..................................................................................................11
GROUT BASEPLATE .........................................................................................................................12
PIPING...............................................................................................................................................12
SUCTION PIPING ........................................................................................................................13
DISCHARGE PIPING....................................................................................................................14
FINAL PIPING CHECK .................................................................................................................14
PREPARATION
When preparing your pump for installation,
the discharge and suction ports must be clean
and free of anything that might prohibit a tight
connection. This is especially important on the
suction, air leaks can cause a pump to operate
poorly or to lose prime completely.
If your pump has just been taken out of stor-
age all of the grease or preservative must be
removed from the ball bearing housing. The
ball bearing housing must then be thoroughly
cleaned with kerosene or carbon tetrachloride
and relubricated. On packed pumps, it will be
necessary to clean the shaft sleeve and stuffing
box with kerosene or carbon tetrachloride and
then repack.
LOCATION/FOUNDATION
Whenever possible locate pump far enough be-
low the minimum liquid level in the reservoir so
there will be a positive head on the suction at
all times. Where this is not possible, the pump
should be located as near the source of supply
as possible. Allow ample room for inspection
and maintenance. Baseplate mounted pumps
are usually grouted on a concrete foundation
that has been poured on a solid footing. The
foundation should be of heavy construction to

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LEVEL BASEPLATE
reduce vibration and must be rigid enough to
resist the torque it may be subjected to. The
foundation should be 2” to 6” larger than the
base, depending on the size of the base. A
space of approximately 2” should be left be-
tween the foundation and the bottom of the
base for grouting. Use a pipe sleeved bolt (Fig.
3) to within 1/2” of the base for a foundation
bolt.
Fab. Steel
It should be noted at this time that SPECIAL
CARE must be taken when leveling your pump
for alignment, it is of the utmost importance.
Once the pump is set the only means of adjust-
ing is by shimming.
1. Place 12 wedges on the foundation, one
wedge on each side of every mounting bolt.
Place wedges so that baseplate is 3/4”
above foundation to allow for adequate
grouting (Fig. 4).
2. Carefully lower the baseplate onto mount-
ing bolts.
3. Level baseplate to within 1/8” over the
length and to within .088 in. over the width
by adjusting the wedges.
4. Hand tighten bolts.

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1. Coat all jack screws with an anti-seizing
compound to allow for easy removal after
the grout has cured.
2. Cut 6 round plates from barstock to set the
jack screws on. Chamfering the edges of
the plate is recommended to reduce stress
concentrations.
3. Set the baseplate on the foundation, then
raise it 3/4” to 1 1/2” using the four corner
jack screws. At this time, the two center
jack screws should not be touching the
foundation.
4. Place one machinist level lengthwise on a
single motor pad, and another across the
ends of both motor pads. (It is important
that the surface being leveled is free of all
contaminants, such as dust, to ensure that
your reading is accurate.)
5. Adjust the four jack screws in order to level
the motor pads to zero in both directions.
6. Turn down the center jack screws until they
are resting on their metal plates.
7. Move the two levels to the pump pads.
Place one level lengthwise on a single pad,
and the other across the middle of both
pump pads.
8. Adjust the jack screws to level the pump
pads in both directions.
9. Install the anchor bolts until they are hand
tight.
10. Recheck the motor pads for level measure-
ments.
11. Continue adjusting the jackscrews and an-
chor bolts until all level measurements are
within the requirement of 0.002 on in./ft.
COUPLING ALIGNMENT PROCEDURE
! WARNING !
Before starting any alignment procedure,
ensure that the motor power is locked
out. Failure to do this will result in serious
physical injury.
For trouble-free operation of this unit, proper
alignment must be attained. Proper alignment
is the responsibility of the installer and user of
this pump.
Alignment Checks
Initial Alignment (Cold Alignment)
• Before grouting baseplate to make certain
alignment can be obtained
• After grouting baseplate to make sure no
changes have occurred.
• After connecting piping to ensure that align-
ment hasn’t been altered by pipe strain. If
alignment has changed alter piping to re-
move strain.
Final Alignment (Hot Alignment)
• After first run to obtain correct alignment
when equipment is at operating tempera-
ture.

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Alignment Criteria
Good alignment is achieved when the differenc-
es between the readings is .010 or less when
the pump is at operating temperature. How-
ever, during the installation phase it is neces-
sary to set the parallel alignment in the vertical
direction to a different criteria. This is due to the
differences in the expansion rates of the pump
and the motor. The recommended cold settings
for electric motor driven pumps is shown in Ta-
ble 1.
Angular Alignment
Check angular alignment with a micrometer or
caliper. Measure from the outside of one flange
to the outside of the other flange at intervals
around the periphery of the coupling, DO NOT
rotate the coupling. The difference between the
maximum and the minimum must not exceed
.010”.
Parallel Alignment
Check parallel alignment by placing a straight
edge across the two coupling flanges and mea-
sure the offset at various points around the
periphery of the coupling. DO NOT rotate the
coupling. If offset exceeds .010” realign the
coupling.
If a correction is necessary to either the angular
or parallel alignment, remember to recheck the
other for proper alignment.
TABLE 1
COLD SETTING OF PARALLEL
VERTICAL ALIGNMENT
Pumpage Temperature Set Driver Shaft
50OF (10OC) .002 in. Low
150OF (65OC) .001 in. High
250OF (120OC) .005 in. High
350OF (175OC) .009 in. High
450OF (218OC) .013 in. High
550OF (228OC) .017 in. High
650OF (343OC) .021 in. High
700OF (371OC) .023 in. High
ALIGNMENT TROUBLESHOOTING
Problem Probable Cause Solution
Cannot obtain horizontal
alignment, angular of parallel
The bolts holding the
driver feet are bound.
Loosen pump hold down bolts and slide pump
and driver until horizontal alignment is achieved.
Baseplate not leveled
properly, probably twisted.
Determine which corner(s) of baseplate are
high or low and adjust properly, then realign.
Baseplate not leveled
properly, probably bowed.
Determine if center of baseplate should be
raised or lowered, and adjust properly.
Cannot obtain vertical
alignment, angular or parallel