Wacker Neuson PS2 1503 User manual

Operator’s Manual
Pump
PS, 3-Phase
Type PS, 3-Phase
Document 5000184964
Date 1222
Revision 12
Language EN
5000184964

Copyright
notice
© Copyright 2022by Wacker Neuson America Corporation
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 America Corporation.
Any type of reproduction or distribution not authorized by Wacker Neuson America
Corporation represents an infringement of valid copyrights. Violators will be
prosecuted.
Trademarks All trademarks referenced in this manual are the property of their respective owners.
Manufacturer Wacker Neuson America Corporation
N92W15000 Anthony Avenue
Menomonee Falls, WI 53051 U.S.A.
Tel: [phone] · Fax: [phone] · Tel: [phone]
www.wackerneuson.com
Original
instructions
This Operator’s Manual presents the original instructions. The original language of this
Operator’s Manual is American English.

wc_tx001370gb_FM10.fm 3
PS 3-Phase Series Foreword
Foreword
SAVE THESE INSTRUCTIONS—This manual contains important instructions for
the machine models below. These instructions have been written expressly by
Wacker Neuson America Corporation and must be followed during installation,
operation, and maintenance of the machines.
■From this point forward in this documentation, Wacker Neuson America
Corporation will be referred to as Wacker Neuson.
■ Keep a copy of the Operator’s Manual with the machine at all times.
■ For spare parts information, please see your Wacker Neuson Dealer, or visit the
Wacker Neuson website at http://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.
Expectations
for
information in
this manual
■ This manual provides information and procedures to safely operate and
maintain the above Wacker Neuson model(s). For your own safety and to
reduce the risk of injury, carefully read, understand, and observe all instructions
described in this manual.
■ Wacker Neuson expressly reserves the right to make technical modifications,
even without notice, which improve the performance or safety standards of its
machines.
■ The information contained in this manual is based on machines manufactured
up until the time of publication. Wacker Neuson reserves the right to change any
portion of this information without notice.
■ The illustrations, parts, and procedures in this manual refer to Wacker Neuson
factory-installed components. Your machine may vary depending on the
requirements of your specific region.
Model Part Number
PS2 1503 5000008802, 5000008803
PS3 1503 5000008808, 5000008809
PS2 2203 5000008814, 5000008815
PS3 2203 5000008820, 5000008821
PS2 3703 5000008826, 5000008827
PS3 3703 5000008832, 5000008833
PS4 3703 5000008838, 5000008839
PS3 5503 5000008844, 5000008845
PS4 5503 5000008850, 5000008851
PS4 7503HH 5000008856, 5000008857
PS4 7503HF 5000008862, 5000008863
PS4 11103HH 5000008868, 5000008876
PS4 11103HF 5000008872, 5000008878
Machine
Documentation

wc_tx001370gb_FM10.fm
4
Foreword PS 3-Phase Series
Manufacturer’s
approval
This manual contains references to approved parts, attachments, and
modifications. The following definitions apply:
■Approved parts or attachments are those either manufactured or provided by
Wacker Neuson.
■Approved modifications are those performed by an authorized Wacker
Neuson service center according to written instructions published by Wacker
Neuson.
■Unapproved parts, attachments, and modifications are those that do not
meet the approved criteria.
Unapproved parts, attachments, or modifications may have the following
consequences:
■ 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.

Table of Contents
PS 3-Phase Series
wc_bo5000184964_11TOC.fm 5
Foreword 3
1 Safety Information 7
1.1 Signal Words Used in this Manual .................................................................7
1.2 Machine Description and Intended Use .........................................................8
1.3 Operating and Electrical Safety .....................................................................9
1.4 Service Safety .............................................................................................10
1.5 Labels ..........................................................................................................11
2 Lifting and Transporting 12
3 Installation 13
3.1 Components ................................................................................................13
3.2 Preparing the Machine for First Use ............................................................14
3.3 Application Area ..........................................................................................14
3.4 Preparing for installation ..............................................................................15
3.5 Checks to Make Before Installation .............................................................15
3.6 Electrical Wiring ...........................................................................................17
4 Operation 20
4.1 Before Operation .........................................................................................20
4.2 Trial Operation .............................................................................................20
4.3 Operating current .........................................................................................21
4.4 Operating voltage ........................................................................................21
4.5 Vibration ......................................................................................................21
4.6 Operation .....................................................................................................21
4.7 Motor Protector ............................................................................................22
4.8 Emergency Shutdown Procedure ................................................................23
5 Maintenance 24
5.1 Periodic Maintenance Schedule ..................................................................24
5.2 Maintenance and Inspection ........................................................................25
5.3 Storage ........................................................................................................25
5.4 Lubricant Inspection and Changing Procedures ..........................................26
5.5 Replacement Parts ......................................................................................27
5.6 Disassembly and Reassembly ....................................................................27
5.7 Graphic (1.5 kW, 2.2 kW, 3.7 kW, 5.5 kW) ..................................................28

Table of Contents PS 3-Phase Series
wc_bo5000184964_11TOC.fm
6
5.8 Graphic Components .................................................................................. 29
5.9 Disassembly Procedure for 1.5 kW, 2.2 kW, 3.7 kW
and 5.5 kW Models ...................................................................................... 30
5.10 Graphic (7.5 kW, 11 kW) ............................................................................. 31
5.11 Graphic Components .................................................................................. 32
5.12 Disassembly Procedure for 7.5 kW and 11 kW ........................................... 33
5.13 Troubleshooting ........................................................................................... 34
6 Technical Data 35
6.1 Standard Specifications ............................................................................... 35
6.2 Operating Specifications ............................................................................. 35
7 EC Declaration of Conformity 38

wc_si000041gb_FM10.fm 7
PS 3-Phase Series Safety Information
1 Safety Information
1.1 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.
NOTICE: Used without the safety alert symbol, NOTICE indicates a situation
which, if not avoided, could result in property damage.
Note: A Note contains additional information important to a procedure.
This is the safety alert symbol. It is used to alert you to potential personal hazards.
► Obey all safety messages that follow this symbol.
DANGER
DANGER indicates a hazardous situation which, if not avoided, will result in death
or serious injury.
► To avoid death or serious injury from this type of hazard, obey all safety
messages that follow this signal word.
WARNING
WARNING indicates a hazardous situation which, if not avoided, could result in
death or serious injury.
► To avoid possible death or serious injury from this type of hazard, obey all safety
messages that follow this signal word.
CAUTION
CAUTION indicates a hazardous situation which, if not avoided, could result in
minor or moderate injury.
► To avoid possible minor or moderate injury from this type of hazard, obey all
safety messages that follow this signal word.

wc_si000041gb_FM10.fm
8
Safety Information PS 3-Phase Series
1.2 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. The operator connects hoses to
the pump and routes them so that water is pumped from the work area and discharged
into an appropriate location.
This machine is intended to be used for general de-watering applications. This machine
is intended for the pumping of clear water, or water containing solids up to the size
stated within the product’s specifications, and up to the flow, head, and suction lift limits
also stated within the product’s specifications.
This machine has been designed and built strictly for the intended use described
above. Using the machine for any other purpose could permanently damage the
machine or seriously injure the operator or other persons in the area. Machine damage
caused by misuse is not covered under warranty.
The following are some examples of misuse:
■ Pumping flammable, explosive, or corrosive fluids
■ Pumping hot or volatile fluids that result in pump cavitation
■ Operating the pump outside of product specifications due to incorrect diameter
hoses, incorrect length hoses, other inlet or outlet restrictions, or excessive
suction lift or head
■ Using the machine as a ladder, support, or work surface
■ Using the machine to carry or transport passengers or equipment
■ Operating the machine outside of factory specifications
■ Operating the machine in a manner inconsistent with all warnings found on the
machine and in the Operator’s Manual.
This machine has been designed and built in accordance with the latest global safety
standards. It has been carefully engineered to eliminate hazards as far as practicable
and to increase operator safety through protective guards and labeling. However, some
risks may remain even after protective measures have been taken. They are called
residual risks. On this machine, they may include exposure to:
■ Electric shock from improper electrical connections or high voltage
■ Personal injury from improper lifting techniques
■ Projectile hazard from discharge
To protect yourself and others, make sure you thoroughly read and understand the
safety information presented in this manual before operating the machine.

wc_si000041gb_FM10.fm 9
PS 3-Phase Series Safety Information
1.3 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.
Operator
qualifications
Only trained personnel are permitted to start, operate, and shut down the machine.
They also must meet the following qualifications:
■ Have received instruction on how to properly use the machine
■ Are familiar with required safety devices
The machine must not be accessed or operated by:
■Children
■ People impaired by alcohol or drugs
Personal
Protective
Equipment
(PPE)
Wear the following Personal Protective Equipment (PPE) while operating this
machine:
■ Close-fitting work clothes that do not hinder movement
■ Safety glasses with side shields
■ Hearing protection
■ Safety-toed footwear
WARNING
Electric shock hazard.
► To reduce risk of electric shock, connect only to a properly grounded,
grounding-type receptacle.
► To reduce risk of electric shock, follow instructions in this manual for proper
installation.
CAUTION
Electric shock hazard. This pump may automatically restart.
► Prior to working on the pump or control panel, all supply circuits must be
disconnected.
► Do not remove cord and strain relief.

wc_si000041gb_FM10.fm
10
Safety Information PS 3-Phase Series
1.4 Service Safety
Service
training
Before servicing or maintaining the machine:
■ Read and understand the instructions contained in all manuals delivered with
the machine.
■ Familiarize yourself with the location and proper use of all controls and safety
devices.
■Only trained personnel shall troubleshoot or repair problems occurring with the
machine.
■ Contact Wacker Neuson for additional training if necessary.
When servicing or maintaining this machine:
■ Do not allow improperly trained people to service or maintain the machine.
Personnel servicing or maintaining the machine must be familiar with the
associated potential risks and hazards.
Personal
Protective
Equipment
(PPE)
Wear the following Personal Protective Equipment (PPE) while servicing or
maintaining this machine:
■ Close-fitting work clothes that do not hinder movement
■ Safety glasses with side shields
■ Hearing protection
■ Safety-toed footwear
In addition, before servicing or maintaining the machine:
■ Tie back long hair.
■ Remove all jewelry (including rings).
Replacing
parts and
labels
■ Replace worn or damaged components.
■ Replace all missing and hard-to-read labels.
■ When replacing electrical components, use components that are identical in
rating and performance to the original components.
■ When replacement parts are required for this machine, use only Wacker
Neuson replacement parts or those parts equivalent to the original in all types of
specifications, such as physical dimensions, type, strength, and material.

wc_si000041gb_FM10.fm 11
PS 3-Phase Series Safety Information
1.5 Labels
A nameplate listing the model number, item number,
revision number, and serial number is attached to each
unit. Please record the information found on this nameplate
so it will be available should the nameplate become lost or
damaged. When ordering parts or requesting service
information, you will always be asked to specify the model
number, item number, revision number, and serial number
of the unit.
CAUTION
Do not attempt to operate this product before reading the
Operator’s Manual and understanding its contents.
Mishandling of this product may result in explosion, fire, or
electrical shock.
■Do not pull on the power cord or use the power cord to lift
the pump.
■Always use a dedicated ground leakage circuit breaker.
■Be sure to install the ground wire securely.
■Be sure to disconnect the power supply before handling
or inspecting the pump.
Never insert your hand into the pump inlet holes while the
pump is connected to the power supply.

wc_tx001948gb_FM10.fm
12
Lifting and Transporting PS Pumps
2 Lifting and Transporting
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 handle.
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.
► Do not under any circumstances install or move the pump by suspending it from
the cable assembly.
► When installing the pump, pay close attention to its center of gravity and weight.
CAUTION
Personal injury hazard. 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.

wc_tx001970gb_FM10.fm 13
PS 3-Phase Series Installation
3 Installation
3.1 Components
Note: This diagram shows the parts layout of a typical PS (Three-Phase) model.
The external appearance and the internal construction may vary slightly,
depending on your particular model.
Ref. Description Ref. Description
1 Discharge outlet 8 Lifting handle
2 Coupling 9 Mechanical seal
3 Oil housing 10 Oil plug
4 Lubricant 11 Sleeve
5 Impeller 12 Volute
6 Suction cover 13 Strainer
7 Cable assembly 14 Plate
wc_gr000327
7
1
2
8
9
10
11
12
13
14
6
5
4
3

wc_tx001970gb_FM10.fm
14
Installation PS 3-Phase Series
3.2 Preparing the Machine for First Use
When the pump is delivered, first perform the following inspection checks:
■ While unpacking, inspect the product for damage during shipment, and make
sure all bolts and nuts are tightened properly.
■ Check the model number to make sure it is the product that was ordered. Be
certain it is the correct voltage and frequency.
Note: If there is any problem with the product as shipped, contact your nearest
dealer or Wacker Neuson representative at once.
3.3 Application Area
If the pump is used for outdoor fountains, garden ponds and similar places, or to
drain a swimming pool, the pump must be supplied my an isolating transformer or
connected to a Residual Current Device (RCD) with a residual operating current
not exceeding 30 mA.
The pump must not be used when people are in the water.
Leakage of pump lubricants may cause pollution of water.
Proper plug must be provided according to local codes and standards. Refer to
wiring diagram.
The supply voltage should be within ± 5% of the rated voltage.
DO NOT use in water temperatures outside the range of 0–40°C (32–104°F),
which can lead to failure, electrical leakage or shock.
The pump should be used only for pumping plain water. The pump should not be
used to pump fluids such as oil, salt water, or organic solvents.
The pump must never be used to pump explosive liquids and should never be
operated in an area where explosive elements might be present.
The pump must not be used in a partially disassembled state.
Note: Consult your local dealer or Wacker Neuson representative before using
with any liquids other than those indicated in this document.
CAUTION
Personal injury hazard. Failure to observe this caution can lead to electrical shock,
current leakage, fire, water leakage, or other problems.
► Do not operate this product under any conditions other than those for which it is
specified.
WARNING

wc_tx001970gb_FM10.fm 15
PS 3-Phase Series Installation
Critical Pressure
Do not use the pump in an area where the water pressure exceeds the values
given below, as it may damage the pump, or cause a short or electrical shock.
3.4 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.
3.5 Checks to Make Before Installation
With the megohmmeter, measure the insulation resistance between each of the
power wires and grounding wire to verify the insulation resistance of the motor.
Reference insulation resistance: 20M or greater
Note: The reference insulation resistance (20M
 or greater) is the value when the
pump is new or has been repaired. For the reference value after installation, see
Maintenance and Inspection.
CAUTION
Model Critical Pressure
PS2 1503
PS2 2203
PS2 3703
PS4 3703
PS4 5503
PS3 1503
PS3 2203
PS3 3703
PS3 5503
0.5 MPa (71 PSI)
– Discharge pressure during use
= Critical pressure
PS4 7503HH
PS4 11003HH
PS4 7503HF
PS4 11003HF
Critical pressure = 0.5 MPa (71 PSI)

wc_tx001970gb_FM10.fm
16
Installation PS 3-Phase Series
Precautions During Installation
When installing the pump, pay close attention to its center of gravity and weight. If it
is not suspended properly, it may fall and be damaged or cause injury.
When transporting the pump manually, 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.
Do not under any circumstances install or move the pump by suspending it from
the cable assembly. The cable may be damaged, causing electrical leakage,
shock, or fire.
1. This pump series is offered with a variety of discharge fittings. Please refer to
the BOM Product Matrix in the Parts Section to identify the type of discharge
fitting used on your pump. Follow procedures noted below to assure a proper
discharge connection.
Threaded Discharge Fitting (BSP) –
Tighten hose coupling or discharge pipe securely and with proper gaskets.
Quick Disconnect Coupling (QD) –
Assure coupling is tightened securely to pump discharge fitting and companion
coupling is securely fastened with proper gaskets.
Barbed Discharge Fitting (Barb) –
Place hose clamp over hose and push hose to the base of the discharge fitting.
Tighten the hose clamp to secure the hose in place.
2. Avoid dropping the pump or other strong impact. Lift the pump by holding it
firmly with the hands or by attaching a wire rope (a) or chain to the handle.
Note: For proper procedures for handling the cable assembly, refer to Section
Electrical Wiring in this manual.
Do not operate the pump dry. Doing so will prevent the pump from attaining its full
potential and may also damage the pump and lead to a short and electrical shock.
In order to properly discharge water, provide adequate piping to the area where the
pump is mounted. Improper piping may lead to water leakage or other
malfunctions.Install the pump only in an area that can maintain a proper water
level.
3. Install the pump only in an area that can maintain a proper water level.
Note: For details on the water level necessary for pump operation, refer to “Water
Level During Operation” in the Operation section.
4. When using a hose to provide piping to the pump, observe the following:
Use the shortest possible length of discharge hose and minimize the number of
bends. Verify that the end of the hose (discharge side) is lifted above the water
surface (a). If the end of the hose is submerged in water, it may cause the water
to flow back (b) when the pump has been stopped. If the end of the hose is
located at a level that is lower than that of the source water surface, water may
continue to flow out even after the pump has been stopped.
Note: Appropriate piping materials must be provided by the user. Piping materials
are not included with the product..
If large quantities of sediment are drawn into the pump, damage resulting from
wear to the pump can lead to current leakage and electrical shock.
WARNING
CAUTION
CAUTION
CAUTION

wc_tx001970gb_FM10.fm 17
PS 3-Phase Series Installation
5. Use the pump in the upright position. To prevent the pump from becoming
submerged in mud, mount it on a block or other firm base if necessary.
6. 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.
3.6 Electrical Wiring
Always make sure the pump is equipped with the specified overload protectors and
fuses or breakers, so as to prevent electrical shock from a current leak or pump
malfunction.
Operate within the capacity of the power supply and wiring.
wc_gr000329
b
c
wc_gr000330
wc_gr000328
a
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.
WARNING
Electrical shock hazard. Failure to ground the pump properly can lead to electrical
shock from a current leak or pump malfunction.
► Do not attach the grounding wire to a gas pipe, water pipe, lightning arrester, or
telephone grounding wire.

wc_tx001970gb_FM10.fm
18
Installation PS 3-Phase Series
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.
Be careful not to let the cable assembly be cut or become twisted. This may result
in damage to the pump, electrical leakage, electrical shock, or fire.
If it is necessary to submerge the connection wires of the cable assembly in water,
first seal the wires completely in a molded protective sleeve, to prevent electrical
leakage, electrical shock, or fire.
Do not allow the cable assembly wires or power supply plug to become wet.
Make sure the cable does not become excessively bent or twisted, and does not
rub against a structure in a way that might damage it.
If used in a deep-well installation, the cable assembly should be secured every 6 m
(20 ft.).
Connecting the power supply
Before connecting leads to the terminal strip, 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.
This pump series is offered with a variety of cable assembly connections. Please
refer to the BOM Product Matrix in the Parts Section 2 to identify the type of cable
assembly connection used on your pump. Follow the procedures noted below to
assure proper cable assembly connection.
Without Plug –
Tighten the ends of the cable assembly securely against the terminal board. If
installation of grounded plug is required, use only properly rated and approved
CEE plug and secure ends of the cable assembly securely to power and ground
terminals in accordance with plug manufacturer’s instructions.
CAUTION
WARNING

wc_tx001970gb_FM10.fm 19
PS 3-Phase Series Installation
Grounded Plug –
Connect only to receptacle of proper voltage and current rating matching that of the
plug provided with the cable assembly.
Direct-on-LIne Starting
Wiring Diagram
NOTICE: If connected to a circuit protected by a fuse, use a time-delay fuse with
this pump.
UVWG
Br LBG/Y
wc_gr000339
Ref. Description Ref. Description
1 Coil 2 Circle thermal protector
1
2
G/Y
B
L
Br
wc_gr00034
0
Wire Colors
B Black R Red Y Yellow Or Orange
G Green T Tan Br Brown Pr Purple
L Blue V Violet Cl Clear Sh Shield
P Pink W White Gr Gray LL Light blue

wc_tx001985gb_FM10.fm
20
Operation PS 3-Phase Series
4 Operation
4.1 Before Operation
Improper voltage and frequency of the power supply will prevent the pump from
attaining its full potential, and may also lead to current leakage, electrical shock, or
fire.
1. Once again, check the nameplate of the pump to verify that its voltage and
frequency are correct.
2. Check the wiring, power supply voltage, the capacity of the ground leakage
circuit breaker, and the insulation resistance of the motor.
Insulation resistance reference value = 20MW min.
Note: The insulation reference value of 20MWmin. is based on a new or repaired
pump. For reference values for a pump that has already been installed, refer to
Maintenance and Inspection in this manual.
3. Adjust the setting of the overload protector (i.e. circuit breaker) to the pump’s
rated current.
Note: Verify the rated current on the pump’s nameplate.
4. When using a generator, as much as possible avoid operating the pump in
conjunction with other types of equipment.
4.2 Trial Operation
NEVER start the pump while it is suspended, as the pump may jerk and cause a
serious accident involving injury.
NEVER start the pump where people are present, as they may suffer electrical
shock from current leakage.
Be sure to check the pump’s direction of rotation when the pump is exposed to
atmosphere (a). Utilize a hoist to stabilize the pump on a level surface while
performing this check. Operating the pump in reverse while it is submerged in
water will damage the pump, which may lead to current leakage, electrical shock,
or fire.
1. The impeller will rotate counterclockwise (b), as viewed from the bottom of the
pump. Operate the pump for a short time (1 to 2 seconds) to check the rotational
direction of the impeller.
Before changing the connections for reverse rotation, make sure that the power
supply (i.e. circuit breaker) is properly disconnected and that the impeller has
stopped completely. Failure to observe this may lead to serious accidents,
including electrical shock, short, or injury.
■ To reverse the rotation, the following countermeasure must be taken.
COUNTERMEASURE: Interchange two of the three wires designated U, V and W
respectively (c), or follow control system manufacturer's instructions to utilize rotary
field control and phase inverter function of the control system supplied with the
pump.
2. Operate the pump for a short time (3 to 10 minutes) and perform the following
checks.
CAUTION
WARNING
CAUTION
WARNING