■ Use the separate Parts Book supplied with the machine to order replacement parts. ■ If you are missing any of these documents, please contact Wacker Neuson to order a replacement or visit www.wackerneuson.com. ■ When ordering parts or requesting service information, be prepared to provide the machine model number, item number, revision number, and serial number.
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■ Serious injury hazards to the operator and persons in the work area ■ Permanent damage to the machine which will not be covered under warranty Contact your Wacker Neuson dealer immediately if you have questions about approved or unapproved parts, attachments, or modifications.
2006/42/EC, 2006/95/EC, 2004/108/EC, EN 809, EN ISO 12100, EN 60204-1, EN 60335-1, EN 60335-2-41, EN 62233, EN 61000-6 Authorized Person for Technical Documents Robert Raethsel, Wacker Neuson Produktion GmbH & Co. KG, Wackerstrasse 6, 85084 Reichertshofen, Germany Menomonee Falls, WI, USA...
PST3 750 Table of Contents Foreword EC Declaration of Conformity Safety Information Signal Words Used in this Manual ............9 Machine Description and Intended Use ..........10 Safety Guidelines for Operating the Machine ........11 Service Safety ..................13 Safety Guidelines for Lifting the Machine ........... 14 Operating and Electrical Safety ............
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Table of Contents PST3 750 Lubricant Inspection and Changing Procedures .........30 Replacement Parts ................31 Disassembly and Reassembly ............31 Disassembly ..................32 Impeller Inspection ................33 Impeller Reassembly ................33 Troubleshooting Technical Data Standard Specifications ...............36 Operating Specifications ..............37 Dimensions ..................38 Schematics wc_bo5000185128_05_FM10TOC.fm...
PTS3 750 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.
PTS3 750 Machine Description and Intended Use This machine is a submersible water pump. The Wacker Neuson Submersible Pump consists of an electric motor, an impeller, a strainer, and a metal casing with ports for water suction and discharge. Power is supplied to the pump through a corded plug or a hard-wired connection, depending on the installation.
To ensure safe operation of the machine: ■ Do not operate the machine if any safety devices or guards are missing or inoperative. ■ Do not modify or defeat the safety devices. ■ Only use accessories or attachments that are approved by Wacker Neuson. wc_si000830gb_FM10.fm...
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Safety Information PTS3 750 Safe When operating this machine: operating ■ Remain aware of the machine’s moving parts. Keep hands, feet, and loose practices clothing away from the machine’s moving parts. When operating this machine: ■ Do not operate a machine in need of repair. Personal Wear the following Personal Protective Equipment (PPE) while operating this Protective...
Machine When servicing or maintaining the machine: modifications ■ Use only accessories/attachments that are approved by Wacker Neuson. When servicing or maintaining the machine: ■ Do not defeat safety devices. ■ Do not modify the machine without the express written approval of Wacker Neuson.
Safety Information PTS3 750 Cleaning When cleaning and servicing the machine: ■ Keep the machine clean and free of debris such as leaves, paper, cartons, etc. ■ Keep the labels legible. When cleaning the machine: ■ Do not clean the machine while it is running. ■...
PTS3 750 Safety Information Operating and Electrical Safety 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. WARNING Electric shock hazard. ►...
Lifting and Transporting PST3 750 Lifting and Transporting WARNING Personal injury hazard. The cable may be damaged, causing electrical leakage, shock, or fire. If the pump is not lowered into place correctly, it may fall and be damaged or cause injury.
Note: If there is any problem with the product as shipped, contact your nearest dealer or Wacker Neuson representative at once. CAUTION Personal injury hazard. Failure to observe this caution can lead to electrical shock, current leakage, fire, water leakage, or other problems.
3. If used in a permanent installation, where the pump is not readily accessible after installation, please contact Wacker Neuson for a duplicate nameplate to be installed at the wellhead or on the control box so that it will be readily visible.
Installation PST3 750 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 ■...
PST3 750 Installation Electrical Wiring WARNING Personal injury hazard. Incorrect wiring can lead to current leakage, electrical shock or fire. ► Electrical wiring should be connected by a qualified person in accordance with all applicable regulations. Failure to observe this precaution not only risks breaking the law but is extremely dangerous.
Installation PST3 750 Connecting the Power Supply WARNING Personal injury hazard. Electrical shock, shorting, fire, or unexpected starting of the pump can occur. ► Before connecting wires to the terminal, make certain the power supply is turned off (circuit breaker, etc.) ►...
PST3 750 Installation Cable Assembly CAUTION Fire, electrical leakage, or electrical shock hazard. ► 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.
Operation PST3 750 Operation Before starting 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.
PST3 750 Operation Operation WARNING Burn hazard. The pump may become very hot during operation. Allow the pump to cool before handling. ► To avoid being burned, be careful not to contact the pump accidentally. ► Do not touch an operating pump.
Operation PST3 750 Operating Water Level CAUTION Damage to pump, current leakage, or electrical shock hazard. ► Do not operate the pump below the C.W.L. (Continuous running Water Level) indicated below. wc_gr005667 Continuous running Water Level Pump Model (C.W.L.) PST3 750 90 mm (3.5 in)
PST3 750 Operation Motor Protection System (Motor Protector) The pump has a built-in motor protection system. If the motor overheats, for reasons such as the following, the pump will automatically stop operating regardless of the water level, to protect the motor: ■...
(2) See Lubricant Inspection and Lubricant Change in this section. (3) Specialized know-how is required for inspecting and replacing the mechanical seal. Consult with your nearest dealer or Wacker Neuson representative. (4) Consult with your nearest dealer or Wacker Neuson representative regarding overhauls. wc_tx002011gb_FM10.fm...
Note: Touch-up paint is not supplied. Note that some kinds of damage or looseness may require that the unit be disassembled for repairs. Please consult your nearest dealer or Wacker Neuson representative. Storage When the pump is out of use for an extended period, wash it and dry it thoroughly, then store it indoors.
Maintenance PST3 750 Lubricant Inspection and Changing Procedures Inspecting Lubricant Remove the oil plug and tilt the pump to drain a small amount of lubricant. If the lubricant is milky white or has water mixed in with it, the mechanical seal may be faulty.
The procedure for disassembly and reassembly is shown here to the extent necessary for impeller replacement. A specialized environment and facilities are necessary for work on the mechanical seal and the motor parts. Contact your nearest dealer or Wacker Neuson representative in the event such repairs are necessary. wc_tx002011gb_FM10.fm...
Maintenance PST3 750 Disassembly Note: For assembly or disassembly, place the pump on its side. Note: It is not necessary to drain the oil for disassembly and inspection of the impeller (m). However, drain oil if further disassembly and testing is required.
Impeller Reassembly Note: If, upon inspection and testing, a pump component requires replacement, use only replacement parts available from or approved by Wacker Neuson. wc_gr005669 1. Turn pump on its side. 2. Remove sand, dirt, and other debris from rubber parts such as the impeller (m) and casing packing (o) before assembling the pump.
Troubleshooting PST3 750 Troubleshooting Before ordering repairs, carefully read through this manual, then repeat the inspection. If the problem remains, contact your nearest dealer or Wacker Neuson representative. WARNING Personal injury hazard. ► Always turn off the power before inspecting the pump.
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PST3 750 Troubleshooting Problem Cause Remedy Heavy vibration or noise Damaged motor shaft or Contact dealer and replace bearings. motor or bearings. wc_tx003503gb_FM10.fm...
Technical Data PST3 750 Technical Data Standard Specifications Applicable liquids, Water, rain water, ground water, sand-carrying water, mud-carrying consistency and water temperature 0–40°C (32–104°F) Pump Impeller Vortex type Shaft seal Double mechanical seal Bearing Shielded ball bearing Motor Specification Dry submersible induction motor...
PST3 750 Technical Data Operating Specifications PST3 750 PST3 750 Pump 5000620457 5000620454 Part No. 5000620455 Pump Electric power V/Ph/Hz 110/1/50 230/1/50 Rated current 10.0 Starting method Capacitor-run Bore mm (in.) 80 (3) Output kW (Hp) 0.75 (1) Maximum head m (ft.)
PST3 750 Schematics Schematics PST3 750 R(Br) W (L) G (G/Y) wc_gr007081 NOTICE: If connected to a circuit protected by a fuse, use a time-delay fuse with this pump. Ref. Description Ref. Description Capacitor Ground Main coil Circle thermal protector...