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TM 10-4310-391 -13&P
I. INSTALLATION
I-I. INTRODUCTION
This manual has been compiled not only for the care and maintenance of the DuoSeal pump now In your possession but as a
helpful reference and guide for many problems which are usually associated with mechanical vacuum pumps Take time to read
these Instructions carefully and preserve this manual for future reference, we think it will be useful to you
I-2. UNPACKING
Carefully remove the pump from the shipping case and unfasten and remove the wooden skid Preserve all paper work and
inspection tags for future reference If damage has occurred from shipment a claim must be filed with the carrier Immediately,
preserve the shipping container for inspection by the carrier If you are required to communicate with your dealer or with the Sargent-
Welch Scientific Company be sure to include your order number and the pump model and serial numbers for quick identification Do
not return the pump to the factory without first obtaining shipping Instructions from us
I-3. PUMP MOUNTING
I-3a. Mounted Pumps
Rubber bumpers are supplied with most of our mounted pumps, either loosely or attached Bumpers are excellent for applications
involving a semi-flexible surface such as a bench top, they help to Isolated Boise and eliminated cheeping For more aged
requirements the pump base may be bolted directly to a farm foundations with or without the bumpers All DuoSeal pumps should be
mounted In a horizontal plane
I-3b. Unmounted Pumps
If you have purchased an unmounted pump, refer to Parts last for In formation concerning the seize of motor, motor pulley and belt
necessary to Dave your particular pump at the recommended speed
I-4. PUMP LOCATION
The pump should be located preferably In a clean and well ventilate area and adequate space should be provided wherever possible
for routines maintenance such as changes of ail and belt adjustment and replacements Above all, the pump should be located as
closely as possible to bits system In order to utilized it most efficiently Its location should Included such deter mining factors as the
length and seize of connections, the number of bends and the type of exhaust confections
I-5. EXHAUST PROVISIONS
Exhaust confections will be deter mined by the type of system to be exhausted and the desired cleanliness of the atmosphere
surroundings the pump Under normal condition of gild evacuations no thing more than the dust cap will be necessary to cover the
port Where relatively high gas flows are Involve or where the presence of ail vapor Is objection able an exhaust falter may be
fastened to the exhaust port In place of the dust cap The exhaust falters used on our pumps are capable of absorbing and restricting
any vapor particle larger than 0.1 micron Exhaust falters of this type are designed to pass no more than 21 parts per million of vapor
particles larger than 0.1 micron Where extreme exhaust condition are en countered it Is best to pipe the exhaust directly out of the
building
I-6. ELECTRICAL POWER I-6a. Power Source Review
Review the power source and the motor rating to be sure they agree In voltage, phase and frequency. On three-phase applications
the direction of rotation of the motor must be considered Make a momentary check of rotation at the time of power Installation and
wiring Momentary backward rotation of the pump Is not harmful Check the drawings In Parts last for proper direction of rotation
I-6b. Overload Protection
Motor thermal overload protection Is made available by the motor manufacturer as an aid to minimizing motor failure Overload
protection Is not a standard feature on all motors, bits presence Is deter mined by power requirements and availability Motors of 1 ½
horsepower or larger supplied with Sargent-Welch pumps contain no overload protection Installations of such equipment must
comply with local electrical codes which dictate appropriate starter and protect-on devices Motors of one horsepower or less
generally will have some form of overload protection, depending upon availability Some motors may be protected by manual reset
while others will have automatic overload protection It Is strongly suggested that you familiarize yourself with the protect-on supplied
with your motor so that you may react accordingly In the event of an emergency Automatic reset protection Is designed to reset Itself
after a predetermined cooling period If the fault to the drive remains unaltered, the motor will cycle on and off until the fault Is
corrected Manual reset overload protectors prevent the motor from becoming energized until reset by hand A red reset button
protrudes from the motor shell or end shield The motor data plate will Indicate the presence of thermal protection
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