Operator’s Manual Pump PST3 750 PSTF3 750 Type PST3 750, PSTF3 750 Document 5000188031 Date 1115 Version 02 Language EN 5 0 0 0 1 8 8 0 3 1
Copyright notice © Copyright 2015 by Wacker Neuson Production Americas LLC All rights, including copying and distribution rights, are reserved. This publication may be photocopied by the original purchaser of the machine. Any other type of reproduction is prohibited without express written permission from Wacker Neuson Production Americas LLC. Any type of reproduction or distribution not authorized by Wacker Neuson Production Americas LLC represents an infringement of valid copyrights.
PST3/PSTF3 750 Foreword Foreword Machines covered in this manual Machine documentatio n Expectations for information in this manual Manufacturer’ s approval wc_tx001079gb.fm Machine Item Number PST3 750 0620337 0620440 PSTF3 750 0620338 0620441 Keep a copy of the Operator’s Manual with the machine at all times. Use the separate Parts Book supplied with the machine to order replacement parts.
Foreword PST3/PSTF3 750 4 wc_tx001079gb.
PST3/PSTF3 750 1 Foreword 3 Safety Information 7 1.1 1.2 1.3 2 9 Names of Parts ..................................................................................... 9 Prior to Operation ............................................................................... 10 Installation .......................................................................................... 10 Installing the Float (if equipped) ......................................................... 13 Electrical Wiring ............
Table of Contents PST3/PSTF3 750 6 wc_bo0176744en_002TOC.
PST3/PSTF3 750 1 1.1 Safety Information Safety Information Signal Words Used in this Manual This manual contains DANGER, WARNING, CAUTION, NOTICE, and NOTE signal words which must be followed to reduce the possibility of personal injury, damage to the equipment, or improper service. This is the safety alert symbol. It is used to alert you to potential personal hazards. f Obey all safety messages that follow this symbol.
Safety Information 1.2 PST3/PSTF3 750 Operating and Electrical Safety WARNING 1.3 To reduce risk of electric shock, connect only to a properly grounded, grounding-type receptacle. Risk of electric shock—this pump has not been investigated for use in swimming pool areas. An acceptable motor-control switch shall be provided at the time of installation according to local codes and regulations. To reduce risk of electric shock, follow instructions in this manual for proper installation.
PST3/PSTF3 750 2 Operation Operation 2.1 Names of Parts See Graphic: wc_gr005663 1 8 10 2 3 4 5 6 9 11 12 13 14 7 wc_gr005663 Ref. Description Ref. 1 Lifting handle 8 Cable assembly 2 Mechanical seal 9 Oil plug 3 Lubricant 10 Oil lifter 4 Oil casing 11 Shaft sleeve 5 Hose coupling 12 Impeller 6 Pump casing 13 Stirrer 7 Casing packing 14 Strainer stand wc_tx000987gb.
Operation 2.2 PST3/PSTF3 750 Prior to Operation When the pump is delivered, first perform the following checks: • Inspection While unpacking, inspect the product for damage during shipment, and make sure all bolts and nuts are tightened properly. • Specification check Check the model number to make sure it is the product that was ordered. Be certain it is the correct voltage and frequency.
PST3/PSTF3 750 Operation 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 (megohmmeter) • 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.
Operation 2.3.2 PST3/PSTF3 750 Install the pump in a location with sufficient water level, where water collects readily. Note: See 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.
PST3/PSTF3 750 2.4 Operation Installing the Float (if equipped) See graphic: wc_gr005664 wc_gr005664 2.4.1 Set the length of the float lead wire to the dimension indicated below. Failure to set the correct lead wire length will lead to improper operation of the pump. Pump model Length “L” PSTF3 750 150 mm (5.9 in.) NOTICE: Install the float so that it moves freely up and down. If the float binds or catches, it will cause the pump to operate improperly. wc_tx000987gb.
Operation 2.5 PST3/PSTF3 750 Electrical Wiring WARNING Performing electrical wiring 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 current leakage, electrical shock or fire.
PST3/PSTF3 750 CAUTION wc_tx000987gb.fm Operation Cable Assembly If it is necessary to extend the cable assembly, use a core size equal to or larger than the original. This is necessary not only to avoid a performance drop, but to prevent cable overheating which can result in fire, electrical leakage or electrical shock. If a cable with cut insulation or other damage is submerged in the water, there is a danger of damage to the pump, electrical leakage, electrical shock, or fire.
Operation 2.6 PST3/PSTF3 750 Electrical Circuit Diagrams See Graphic: wc_gr005665 PST3 750 PSTF3 750 7 R(Br) R 1 L 9 W (L) 5 8 L 7 R(Br) R W (L) W B 2 L 9 B 5 W 1 L 2 3 G (G/Y) Y/G 6 Y/G 6 3 wc_gr005665 If connected to a circuit protected by a fuse, use a time-delay fuse with this pump. CAUTION Ref. Description Ref.
PST3/PSTF3 750 2.7 Operation Operation Before starting 2.7.1 Make sure once again that the product is of the correct voltage and frequency rating. NOTICE: Using the product at other than rated voltage and frequency will not only lower its performance but may damage the product. Note: Confirm the rated voltage and frequency on the model nameplate. 2.7.2 Confirm the wiring, supply voltage, circuit breaker capacity, and motor insulation resistance. Reference insulation resistance = 20 MΩ or greater.
Operation CAUTION WARNING PST3/PSTF3 750 COUNTERMEASURE: If the supply voltage is outside the tolerance, possible causes are the power supply capacity or an inadequate extension cable. Look again at the wiring diagram and make sure the conditions are proper. In case of very excessive vibration, unusual noise or odor, turn off the power immediately and consult your nearest dealer or Wacker Neuson representative.
PST3/PSTF3 750 CAUTION Operation Operating water level Do not operate the pump below the C.W.L. (Continuous running Water Level) indicated below. Failure to observe this condition may result in damage to the pump, current leakage or electrical shock. See Graphic: wc_gr005667 wc_gr005667 . Continuous running Water Level (C.W.L.) Pump Model PST3 750 PSTF3 750 90 mm (3.5 in) 180 mm (7.1 in.) Motor Protection System (Motor Protector) The pump has a built-in motor protection system (Miniature Protector).
Operation 2.8 PST3/PSTF3 750 Automatic Operation (PSTF3 750 only) See Graphic: wc_gr005666 The PSTF3 750 pump is equipped with a float switch to detect the water level. The float switch (a) enables the pump to perform an automatic drainage operation when connected to a continuous power supply. a wc_gr005666 Connect the power and perform a trial operation as follows: 2.8.1 Move the float switch down to its lowest position. 2.8.2 Raise the float switch. This will start the pump. 2.8.
PST3/PSTF3 750 3 Maintenance Maintenance 3.1 Periodic Maintenance Table Pump Daily Measure operating current. Compare with rated current. Measure supply voltage. Compare with allowable range (within ±5% of rated voltage). Monthly Measure insulation resistance. Reference insulation resistance = 1MW or greater. (1) Pump inspection. A noticeable drop in performance may indicate wear in the impeller, etc., or else clogging of the strainer, etc.
Maintenance 3.2 PST3/PSTF3 750 Maintenance and Inspection WARNING 3.2.1 Regular maintenance and inspections are a necessity for continued efficient functioning of the pump. If any abnormal conditions are noticed, refer to the Troubleshooting section and take corrective measures immediately. It is recommended that a spare pump be kept ready in case of any problems. Prior to inspecting Before inspecting the pump, make certain the power supply (circuit breaker, etc.) is turned off.
PST3/PSTF3 750 Maintenance See Graphic: wc_gr005668 1 2 4 3 wc_gr005668 Ref. Description Ref. Description 1 Oil inlet 3 Oil plug 2 Gasket 4 Allen wrench Pump Model Lubricant Capacity PST3 750 PSTF3 750 160 ml (5.4 fl. oz.) Replacement Parts The table lists the parts that need to be replaced periodically. Replace these using the recommended frequency as a guideline. Part Replacement Frequency Mechanical seal When lubricant in oil compartment becomes milky.
Maintenance 3.3 PST3/PSTF3 750 Disassembly and Reassembly WARNING Before disassembling the pump, make certain the power supply (circuit breaker, etc.) is turned off. Then, unplug the cable assembly from the receptacle or detach it from the terminals. To avoid electrical shock, DO NOT work with wet hands. NEVER check the operation of any parts (impeller rotation, etc.) by turning on the power while the unit is partially assembled. Failure to observe these precautions may result in a serious accident.
PST3/PSTF3 750 Maintenance o n l m k d b j c g h i e f wc_gr005669 a 3.5 Impeller Inspection See Graphic: wc_gr005669 wc_tx000988gb.fm 3.5.1 Visually inspect impeller (m) for corrosion, wear or damage. Worn impellers compromise peak performance. 3.5.2 Visually inspect shaft sleeve (n) and pump shaft for signs of uneven wear. 3.5.3 Visually inspect pump casing (d) for cracks, wear and damage. Look for signs of wear on surfaces facing impeller.
Maintenance 3.6 PST3/PSTF3 750 Impeller Reassembly See Graphic: wc_gr005669 Note: If, upon inspection and testing, a pump component requires replacement, use only replacement parts available from or approved by Wacker Neuson. o n l m k d b j c g h i e f wc_gr005669 a 3.6.1 Turn pump on its side. 3.6.2 Remove sand, dirt, and other debris from rubber parts such as the impeller (m) and casing packing (o) before assembling the pump. 3.6.
PST3/PSTF3 750 3.7 Maintenance Troubleshooting WARNING Before ordering repairs, carefully read through this manual, then repeat the inspection. If the problem remains, contact your nearest dealer or Wacker Neuson representative. ALWAYS turn off the power before inspecting the pump. Failure to observe this precaution can result in serious accident. Problem / Symptom Pump will not start Reason / Remedy • Power is off. Restore power. • Cable assembly is cut or not connected properly.
Maintenance PST3/PSTF3 750 Notes: 28 wc_tx000988gb.
PST3/PSTF3 750 4 Technical Data Technical Data 4.1 Standard Specifications Applicable liquids, consistency and temperature Water, rain water, ground water, sand-carrying water, mud-carrying water 0–40°C (32–104°F) Pump Motor Impeller Vortex type Shaft seal Double mechanical seal Bearing Shielded ball bearing Specification Dry submersible induction motor (2-pole) Insulation Class E Protection system (built-in) Miniature protector (0.4 kW) Circle thermal protector (0.
Technical Data 4.2 PST3/PSTF3 750 Operating Specifications Part No. PST3 750 PSTF3 750 Pump Electric power V/Ph/Hz Rated current A 110/1/60 220/1/60 10.0 4.7 Starting method Capacitor-run Bore mm (in.) 80 (3.2) Output kW (Hp) 0.75 (1) m (ft.) 19 (62) Maximum flow rate L/min (GPM) 230 (60) Maximum pressure kg/cm2 (psi) Maximum discharge head 1.79 (25.5) Solid size capacity mm (in.) 7 (0.27) Weight* Kg (lbs.
Important: For spare parts information, please see your Wacker Neuson Dealer, or visit the Wacker Neuson website at http://www.wackerneuson.com/. Wichtig! Informationen über Ersatzteile erhalten Sie von Ihrem Wacker Neuson Händler oder besuchen Sie die Wacker Neuson Website unter http://www.wackerneuson.com/. Important : Pour des informations sur les pièces détachées, merci de consulter votre distributeur Wacker Neuson, ou de visiter le site Internet de Wacker Neuson sur http://www.wackerneuson.com/.
