TapFlo PTL Series, Manual

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2. OPERATION
IOM manual Tapflo PTL Hose pumps
17
2. OPERATION
2.1. Before starting the pump
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Make sure the pump is installed according to the installation instructions (section 1).
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Filling of the pump with liquid before start is not necessary.
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Ensure that the hose is lubricated. For information on lubricant refer to section 3.9 “ Hose
replacement ” .
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Make sure to plug all pump openings to prevent lubricant leakage or/and liquid leakage
in the event of a hose rupture. This applies to various openings, including the drainage
channels, as well as sensor mounting openings.
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Check manually that the motor is free to turn, moving the motor cooling fan.
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Make sure that the piping is not clogged and is free from residues or foreign objects.
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The suction shut-off valve (if any) must be completely open.
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The shut-off valve on the discharge side (if any) must be completely opened.
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Any auxiliary connections must all be connected.
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Ensure proper rollers adjustment, see 3.11. “ Rollers adjustment ” .
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When installation is new or reinstalled, a test run of the pump with water should be
conducted to make sure that the pump operates normally and does not leak.
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When installation is new or reinstalled, check the pump housing nuts tightening torque
(see section
6.4. “ Tightening torque ” s ). After approximately one week of operation, the
torque should be checked again. This is important to prevent possible leakage.
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Starting the electrical motor makes the pump run at full capacity!
2.2. Starting and operation
Open the discharge valve and start the electric motor. The pump must not run with completely
closed discharge - these conditions can seriously damage the pump and cause injury to the
operator.
If the pressure shown on the pressure gauge on the discharge piping does not increase, turn
off the pump immediately and release pressure carefully. Repeat the connection procedure.
Make sure that pressure on the discharge does not exceed the rated pressure!
A device must be incorporated into the pump, system, or drive, to prevent the pump
exceeding the above rated pressure. Do not allow the pump to operate with a
closed/blocked discharge unless a pressure relief device is installed.
A pressure relief valve must be assembled obligatory on the discharge side by the
customer.
Pump can be equipped with such a safety device on customer’s request .
If there are changes of flow rate, head, density, temperature or viscosity of the liquid, stop the
pump and get in touch with our technical service.
The performance of the pump can be adjusted by means of a frequency inverter. The flow
depends on direction of rotation and can achieve full capacity in both directions of rotation.