Tsurumi PL Pumps - Manual (Page 9)

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CAUTION !
WARNING !
When installing the pump, pay close attention to its
center of gravity and weight. If it is not lowered into
place correctly, it may fall and be damaged or
cause injury.
When transporting the pump by hand, be sure to
employ manpower commensurate with the weight of
the pump. To avoid back injury when lifting the pump,
bend the knees to pick it up rather than bending your
back only.
1. The pump is supplied with a threaded discharge fitting.
Tighten hose coupling or discharge pipe securely and
with proper gaskets.
2. Avoid dropping the pump or other strong impact. Lift
the pump by holding it firmly with the hands or by
attaching a rope or chain to the lifting handle.
Note: On power cable handling, see Section 1.7
Electrical Wiring.
3. Install the pump in a location with sufficient water level,
where water collects readily.
Note: See Section 1.9 Operation (“Operating Water Level”)
for the water level necessary for operation.
Note: The discharge end of the hose should be located
higher than the water surface. If the end of the hose
is submerged, water may flow back to the pump
when the pump is stopped; and if the hose end is
lower than the water surface, water may overflow
when the pump is turned off.
Avoid dry operation, which will not only lower
performance but can cause the pump to malfunction,
leading to electrical leakage and shock.
If large quantities of earth are sucked up, damage
resulting from friction in the pump can lead to electrical
leakage and shock.
DO NOT under any circumstances install or move the
pump by suspending it from the power cable. The
cable may be damaged, causing electrical leakage,
shock, or fire.
1.6 Installation
Preparing for Installation
Before installing the pump at a work site, you will need to
have the following tools and instruments ready:
• Insulation resistance tester
• AC voltmeter
• AC ammeter (clamp-on type)
• Bolt and nut tighteners
• Power supply connection tools (screwdriver or
box wrench)
Note: Please also read the instructions that come with
each of the test instruments.
Checks to Make Before Installation
When a three-prong grounded plug is used:
Use the megohmmeter to measure the motor insulation
resistance between the grounding prong and each
one of the two power prongs.
When connection wires are used:
With the megohmmeter, measure the insulation
resistance between the ground wire (Green) and
each one of the two power wires.
Reference insulation resistance: 20MΩ or greater
Note: The reference insulation resistance (20MΩ or
greater) is the value when the pump is new or
has been repaired. For the reference value
after installation, see Section 1.10 Maintenance
and Inspection.
Precautions in Installation
Maximum Allowable Water Pressure
ATTENTION: DO NOT use higher water
pressure than the figure shown below.
Maximum allowable water pressure: 28 PSI
(0.2 MPa) discharge pressure used.
4. Use the pump in the upright position. To prevent the
strainer from becoming submerged in mud, causing it
to suck in sand or debris, mount it on a block or other
firm base.
5. If used in a permanent installation, where the pump is
not readily accessible after installation, please contact
TSURUMI for a duplicate nameplate to be installed at
the wellhead or on the control box so that it will be
readily visible.
CAUTION
CAUTION
1-5
T SURUMI P UMP
CAUTION !
CAUTION !
WARNING !
1.7 Electrical Wiring
Performing electrical wiring
Operate within the capacity of the power supply
and wiring.
Grounding
Connecting the power supply
DO NOT attach the grounding wire to a gas pipe,
water pipe, lightening arrestor or telephone grounding
wire. Improper grounding can result in electrical shock.
DO NOT use the pump with the power cable or plug
connected loosely, which can result in electric shock,
shorting, or fire.
Draw power from a dedicated power outlet rated at
15 A or above. Sharing the outlet with other equipment
may cause overheating at the branch outlet and could
result in fire.
DO NOT use the pump without first grounding it
properly. Failure to ground it can lead to electrical
shock from an electrical leak or pump malfunction.
WARNING !
Before connecting wires to the terminal, make certain
the power supply is turned off (circuit breaker, etc.), to
avoid electrical shock, shorting, or unexpected starting
of the pump, leading to injury.
Before inserting the power supply plug, make certain
the power supply is turned off (circuit breaker, etc.), to
avoid electrical shock, shorting, or unexpected starting
of the pump, leading to injury.
WARNING !
Electrical wiring should be performed by a qualified
person in accord with all applicable regulations. Failure
to observe this precaution not only risks breaking the
law but is extremely dangerous.
Incorrect wiring can lead to electrical leakage, electrical
shock or fire.
ALWAYS make sure the pump is equipped with the
specified overload protectors and fuses or breakers,
so as to prevent electrical shock from an electrical
leak or pump malfunction.
• The three-prong grounded plug shall be connected as
shown in the drawing.
ATTENTION: Be sure to use a dedicated
power supply with a ground leakage circuit
breaker.
Note: The shape of the plug may differ from that shown in
the illustration.
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T SURUMI P UMP
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