Den-Sin MERMAID E500-S Mode d’emploi

www.densin.com

USER GUIDE & SPARE PARTS MANUAL

-S

Electrical Powered

Heavy Duty Cold Water High

HIGH PRESSURE CLEANER

Original Instruction

Introductions

MERMAID E500-S STD08 Page 1 of 52

Introductions

Congratulations on your purchase of the DEN-SIN MERMAID E500-S Water Blaster.

DEN-SIN makes no warranty of any kind with regards to this material, including, but not limited

to, the implied warranties of merchantability and fitness for a particular purpose.

DEN-SIN expressly disclaims all responsibility and liability for the installation, use, purpose,

maintenance, and support of third party products.

This Original Instruction or part of it may not be photocopied, or in any other way reproduced,

or translated to other languages without the prior written consent of DEN-SIN.

Warning

Read this user manual before you start up your Water Blaster the first time.

This machine is a Water Blaster producing water jet under high-pressure, which is why severe

injuries can occur if the safety precautions are not observed.

Therefore a full understanding of the contents of this instruction manual is required, in order to

prevent injuries to you, objects and persons nearby.

Safety

The following symbols are used in this manual to indicate procedures that if not followed, may

results in personal injuries or damage to equipment.

WARNING

is used to alert the reader of procedures or

practice which if not followed correctly could result in personal

injuries.

WARNING

CAUTION

is used to alert the reader of procedures or

practice which if not followed correctly could result in damage

to machine or other equipment.

NOTE

is used to highlight important information that may

assist the reader carrying out the procedure or understanding the

text.

NOTE

EAR PROTECTION

is used to caution of high noise

machine level. User must wear ear plug or ear muffler. High

noise level will damage user hearing.

HOT SURFACE

is used to caution user of hot surface that

may cause injuries. Any maintenance work to be done after the

surfaces had cool down.

Introductions

MERMAID E500-S STD08 Page 2 of 52

Operation Information

High Pressure Machine has IP55 rating. Parking the machine outdoor will not pose any damage to

the machine. Ensure that the ventilation to the motor must not be blocked. During operation, the

machine must not park at an incline angle of 10deg. The machine will become unstable and may

endanger user. When hose is pull up to a high, pressure will drop due to gravity.

This machine is designed to deliver clean water or non-aggressive water. Using any other water

source or sea water will damage the pump unless authorized in writing by Den-Sin.

Prior to beginning work, all equipment must be inspected to ensure that it is in safe working

condition. Inspection shall include verifying the integrity of hoses and connections, tips, lances.

Personal protective equipment must be worn.

Prior to commencing any water blasting work, the area must be barricaded to restrict unauthorized

access.

We recommend to practice to employ 2 operators* blasting method. The role of the 2

operator is

to attend the pump unit keep close watch on the 1

operator for tiredness. Therefore, the operators

can take turns to operate the machine.

∗Operators must be trained on how to operate the machine (DENSIN) and the basic blasting

protocol before allow to use the machine.

How to prepare machine for usage

Correct way of holding the trigger gun for blasting due to the recoil force from the

trigger gun.

Understand how to operate the machine correctly.

Basic Maintenance and Troubleshooting.

****** Den-Sin Training program is available upon request. Please contact us for details ******

Version STD08: Nov 2017

Revision Rev.No.

Manual

Updating

Manual Updating, item no. 700505135 5

Manual Updating,

nozzle

and valve change

Manual update, remove CE declaration 7

Manual update 8

IMPORTANT

that user read the manual guide to understand

the operation of the machine before usage.

NOTE

USE ONLY FRESH WATER

. No other chemical or sea

water is to be used. Any authorize liquid that are used without

the approval from manufacturer will void the warranty and

destroy the machine components.

NOTE

1. Getting acquainted with your Water Blaster

MERMAID E500-S STD08 Page 3 of 52

Table of contents

Introductions ............................................................................................................. 1

Table of contents....................................................................................................... 3

1. Getting acquainted with your Water Blaster....................................................... 4

Fast and efficient cleaning.......................................................................................................4

Specifications ..........................................................................................................................4

Applications.............................................................................................................................5

Unpacking ...............................................................................................................................5

SV- Safety Valve Operation....................................................................................................6

UV-Unloader Valve Operation ...............................................................................................6

Hose Type: ..............................................................................................................................7

Machine ID Plate.....................................................................................................................7

Machine Highlights .................................................................................................................8

Machine Installation / setup ..................................................................................................12

2. Safety and protection information ..................................................................... 14

General safety........................................................................................................................14

Safety devices........................................................................................................................16

Transporting the machine:.....................................................................................................17

Machine Lifting Configuration .............................................................................................17

Safety precautions .................................................................................................................18

Safe use of machine Guidelines ............................................................................................19

Safe Application guidelines...................................................................................................20

3. Maintenance and troubleshooting ..................................................................... 21

Maintenance Schedule...........................................................................................................21

Machine Do`s and Don`ts......................................................................................................22

Troubleshooting.....................................................................................................................23

Service Instructions ...............................................................................................................24

4. Spare parts list .................................................................................................... 31

Main Chassis Assembly ........................................................................................................31

Main Chassis Assembly spare-parts list................................................................................32

Motor & Pump Assembly......................................................................................................33

Motor & Pump Assembly spare-parts list .............................................................................33

Filter Assembly .....................................................................................................................35

Filter Assembly spare-parts list.............................................................................................35

Pump assembly......................................................................................................................35

Pump assembly spare-parts list .............................................................................................36

Pump Spares Kit List.............................................................................................................38

Un-loader valve assembly .....................................................................................................39

Un-loader valve assembly spare-parts list.............................................................................40

Safety valve assembly ...........................................................................................................41

Safety valve assembly spare-parts list...................................................................................41

Trigger / gun / lance & hose assembly..................................................................................42

Trigger / gun/ lance & hose assembly spare-parts list...........................................................43

Lance, Complete with different length..................................................................................43

Rotating Nozzle Type 1:........................................................................................................44

Rotating Nozzle Spare-parts list............................................................................................44

Rotating Nozzle Repair Kit ...................................................................................................44

Rotating Nozzle Type 2: Barracuda ......................................................................................46

Rotating nozzle assembly spares-parts list............................................................................46

Sand and & slurry blasting kit...............................................................................................48

El-box assembly spare-parts list............................................................................................50

5. Wiring diagram (380~480V, 50/60Hz) ................................................................. 51

6. Warranty............................................................................................................... 52

1. Getting acquainted with your Water Blaster

MERMAID E500-S STD08 Page 4 of 52

1. Getting acquainted with your Water Blaster

Fast and efficient cleaning

The

DEN-SIN

Mermaid E500-I enables you to get more cleaning done in less time.

This

DEN-SIN

cold water Blaster offers you high performance and a design optimized for heavy

duty use. The design of the surrounding frame safeguard the vital parts during transport and use,

and the high performance gives you the opportunity to solve an array of blasting tasks. The Water-

blasters are designed for industrial and for offshore use. All pump parts fittings and pipes in

contact with water are made of non-corrosive materials. Together with the ceramic pistons, long

life seals and stainless steel valves, it ensures long life and high durability.

Specifications

Model Motor Motor

Speed

Working Pressure Flow Capacity * Power

Supply

Dimensions

LxWxH

Weig t

Hp kW rpm

Rated PSI

/Max PSI

Bar/Max

Bar

gpm l/min Voltage mm kg

E500

60Hz

(700995236)

40 30 1750

7250/7687

500/520

7.9 30 440V 60Hz

1690x 630x 1257

300

* Temperature of high pressure water is about 60DegC

Machine Dimension

1. Getting acquainted with your Water Blaster

MERMAID E500-S STD08 Page 5 of 52

Applications

These heavy-duty Water Blasters are capable of removing most kind of dirt:



Descaling



Surface preparation



Paint and rust removal



Concrete removal



Cargo Area

And with the option for use of accessories even many more jobs are to be dealt with:



Sandblasting



Drain cleaning

Unpacking

Remove the Water Blaster and its accessories from the packing material, if any. For transport and

packing reasons some accessories are supplied disassembled.

Standard items:

CAUTION

High Pressure Machine

Trigger Gun

High

Pressure

Hose

Manual/Spares Parts

Nozzle

Water Coupling

This machine is only to be used for the purposes it is designed for. Any

other use shall be considered improper and therefore potentially

dangerous. The manufacturer is NOT to be held responsible for any

damages caused by improper use or modification.

1. Getting acquainted with your Water Blaster

MERMAID E500-S STD08 Page 6 of 52

High Pressure Machine Schematic Diagram Mermaid E500

Symbol Description Symbol Description

Filter 1

Incomming

Main Pump

FV Float Valve UV Unloader

LS Level Sensor PG2 Pressure Gauge High Pressure

SV Safety Valve TG Trigger Gun (Dry Shut Type)

Remarks:

•

SV : -

SV (Safety Valve)

is set at factory about 20~30Bar more than

PG 2(Pressure Gauge)

•

TG: -

TG (Trigger Gun –Dry)

is normally close, pressurize when trigger is pressed.

•

UV: -

UV (Unloader)

is normally open, pressurize when trigger is pressed.

SV- Safety Valve Operation

Safety valve is a system to protect the machine from over pressure. Over pressure occurs when

nozzle size is wrong or the nozzle is chocked. Another possible cause is the unloader setting is

wrongly set. When machine is over pressurized, the safety valve will start to open and excess

water is dumped. The setting of the safety valve system is factory set, do not try to reset them.

UV-Unloader Valve Operation

Unloader valve system is a system to regulate the pressure for the machine. The setting of the

unloader valve system is factory set. Do not try to reset the setting. There should about 5% water

dump back into the water tank if the nozzle is use correctly

Water

80L

Water Tank

F 1

Signal Out

Dump Back

PG 2

TG 1

CAUTION

Machine is manufactured with factory preset settings for its Unloader and

Safety valves. Please do not try to change these setting. Adjusting the

setting will affect the machine performance or machine become unstable.

A trained personal is required to change the settings if necessary.

1. Getting acquainted with your Water Blaster

MERMAID E500-S STD08 Page 7 of 52

Hose Type:

Mac ine ID Plate

Manufacturing Date:

Quarter

;

Year

WP:

500 Bar

Hose Size:

½”

or DN 12

Hose Fitting:

½”

Do not bend the hose or squeeze between doors. Replace the hose if

the hose wire is exposed. Read the WP allow on the hose before using

the machine. Always switch off and depressurize the machine before

attach or dettached the hose to the machine.

CAUTION

NOTE

The information contained in this user guide is subject to

change without notice.

1. Getting acquainted with your Water Blaster

MERMAID E500-S STD08 Page 8 of 52

Machine Highlights

* Pictures are

HOT SURFACE

is used to caution user of hot surface that may cause

injuries. Any maintenance work to be done after the surfaces had cool

down.

HP Water Outlet

Motor/Pump Rotation

Hot Surface Indication

Min.

Pressure:

~480Bar

Max

Pressure:

~500Bar

Pressure Gauge

Water Dump Back

/ Overflow

Water

Drain

Water

Inlet

1. Getting acquainted with your Water Blaster

MERMAID E500-S STD08 Page 9 of 52

HIGH PRESSURE MACHINE LOCKOUT/TAGOUT PROCEDURE

This procedure establishes lockout on the high pressure machine that could cause injury to personnel. All

operators shall comply with the procedure. Equipment shall be locked out to protect against accidental or

inadvertent operation when such operation could cause injury to personnel. Do not attempt to operate any

switch, valve, or other main switch bearing a lock.

Responsibility

The responsibility for seeing that this procedure is followed is binding upon all operators. All operators

shall be instructed in the safety significance of the lockout procedure by (designated individual). Each new

or transferred affected operator shall be instructed by (designated individuals) in the purpose and use of the

lockout procedure.

Sequence of Lockout Procedure

Notify all affected operators that a lockout is required and the reason therefor.

If high pressure machine is operating, shut it down by the pressing the stop button. Only turn off the

booster pump switch when the motor has come to a stop.

Turn the main isolator to the off position.

Release residue pressure in the trigger gun.

Lockout the main isolator with a lock assigned individual lock. This is to disable the operation of the

machine.

Lock the electrical box and the keys are kept with an assigned individual lock to prevent any

unauthorized modification to the machine control settings.

Lockout the trigger with a lock that is assigned individual lock. This is to prevent accidentally activate

the trigger or sabotage. Possible way to lock the trigger gun as shown below.

After ensuring that no personnel are exposed and as a check on having disconnected the power sources,

operate the start push button and main switch to ensure the high pressure machine will not operate.



CAUTION: Return operating controls to neutral position after the test.

The equipment is now locked out

Restoring Equipment to Service

When the high pressure machine is to operate at is normal service, check the area around the machine

that no one is exposed. Barrigate the area of working zone to prevent people entering the working zone.

When equipment is clear, remove all locks. Turn on the main switch, unlock the trigger gun lock and start

the normal operating procedure to start using the high pressure machine.

Lock

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