Thank you for choosing our water blaster. For your safety and correct operation,
please carefully read the information and instructions in this manual before use.
NOTE: All of the information stated in this manual is based on data available at the
time of printing. DEN-JET reserves the right to modify or change its products and / or
specification data at any time without prior notice.
DEN-JET has no responsibility or liability regarding misuse of the product or use of
the product with third party products.
DEN-JET warranty’s is limited to repair or replacement of faulty items at the time of
manufacture.
DEN-JET has the copyright for this material and all kinds of reproduction are
prohibited without DEN-JET’s permission.
Model:
Technical details:
50 Hz
W.P. Bar / Psi
Flow Lpm / Gpm
Electrical Spec.
Motor Hp/ Kw
Voltage 50
Amperage A
Dimensions
L x W x H mm
Weight Kg
CE27-500
500 / 7250
20 / 5.25
27 / 20
400
21
1060 x 760 x 850
280
Dec-16
2
General information
Specification data .......................................................... 2
Index .............................................................................. 3
Certificate(s) of conformity .......................................... 4
According to E.U. Machine Directive 2006/42/EC. Appendix IIA
We hereby declare that the electrical driven high-pressure water blaster machines:
CE-27-500 has been designed, manufactured and tested to fully comply with the health and
safety requirements of the E.U. machine regulations.
ANY modification or change of the machine without our prior consent will render this
declaration null and void.
Appropriate E.U. regulations: E.U. Machine Directive (2006/42/EC) Current issue.
E.U. Low Voltage Directive (2006/95/EC)
E.U. EMC Directive (2004/108/EC).
Coordinated standards
Used particularly: EN 809 pr EN 1889
EN 292 part 1 & 2 EN 60204-1
EN 574 EN 294
EN 50081-2
EN 6100-6-2
Date: December 2016 Benny S. Jensen
Managing Director.
4
Safety Precautions:
To safeguard the operator who uses the machine and its accessories and as accident
prevention and protection of bystanders and property, the following safety precautions must
be observed. Always treat the water blaster in the same way as any other power driven high
speed cutting tool!
Never let children or people who have not been properly instructed operate the machine.
Use the electric plug in a proper socket with ground to earth wiring. The entire electrical
installation must be with earth wiring! All electrical installations must be made only by an
electrician. A GFCI (Residual current device) is recommended.
Always keep the high-pressure cleaner and the belonging accessories in good working
condition. Check that the machine and its accessories are free from defects, and in good
working condition, with special attention to the insulation on the electric cable. In case of
defect: Do NOT OPERATE THE MACHINE! Get the machine serviced.
Eye protection must be worn at all times when operating the machine to protect against
repelling or ricocheting materials hitting the eyes and causing damage.
Ear protection must be worn at all times when operating the machine to protect against hear
loss during operation.
Proper footwear and protective clothing must be worn at all times when using the equipment
to avoid and prevent damage to the operator.
NEVER direct the jet at yourself. Do not attempt to clean your clothes or footwear with the
machine.
Precautions must be made to keep bystanders away from the working range.
NEVER spray-jet on humans or live animals, the high pressure jet can cause severe injury.
NEVER spray at electrical equipment, or at the machine itself.
Make sure the machine is turned off and disconnected from the main power supply before
service or repair.
5
Safety Precautions:
The below shown protective clothing and devices should be worn both by personnel operating
the water blaster system and equipment and by those working nearby:
Operators must wear visors or goggles to guard against spray
and flying debris. A combination of both goggles and visor is
recommended. It will protect the eyes and the face during both
water-blasting as well as abrasive water-blasting.
Safety helmets must be worn at all time by personnel within
the work area.
Helmet material must be able to withstand mechanical shock
exceeding 10G in 8ms without fracturing.
Shear proof gloves must be worn by the operator at all times.
A glove combination of a cloth inner lining and a water tight
outer layer is preferable.
Safety boots with steel toecaps minimum 0.5mm (0.02”) thick
must be worn. The toecap must cover at least 30% of the
footwear length. Basic safety footwear must also be equipped
with metatarsal guards to protect the instep. Safety boots are
available in numerous designs.
Operators and other personnel exposed to noise levels of more
than 90-dBa for more than 1 hour must wear suitable ear
protection. Ear plugs or ear muffs are usually sufficient.
Waterproof clothes protect the operator only from spray and
flying debris. They do NOT deflect direct jet impact.
Therefore, an operator must take care never to point a waterjet either at them selves or other personnel.
6
Medical emergency information:
Immediate medical attention should be given to personnel who sustain equipment related
injuries while operating the system. In such cases, it is vital that medical personnel be
apprised of all facts relevant to such injuries. Therefore, all operating personnel should be
provided with waterproof emergency medical alert tags or cards, describing the nature of their
work and the possibility of injury inherent in the use of water jetting equipment. The below
example of a standard card can be printed out or photo copied, bend, laminated and used as
medical alert tag.
7
Preparing the machine for operation:
1) Place the machine in a safe location and secure the unit with lashing belts.
2) Freshwater Connection.
Prepare the water supply for the blaster, by attaching a 3/4” hose to the supplied low pressure
inlet coupling on the side of the water tank. Connect the other end to the fresh water supply
from the vessel. Open for the water supply and fill up the water tank before starting the
machine. Always use the inlet connection on the tank for supplying water.
3)High Pressure Hose Connection
Mount the ½” high pressure hose to the blaster by attaching the swivel of the hose to the
outlet fitting of the pump head. Please use 2 x 27mm spanners / wrenches to tighten the
connection. Additional high pressure hoses supplied with the machine should be mounted
now by using the supplied ½” nipples male-male to connect the hoses together. Please use 2 x
27mm spanners / wrenches to tighten the connection.
4) Trigger Gun Connection
Mount the trigger gun with lance to the high pressure hose. Please use 2 x 27mm spanners /
wrenches to tighten the connection. Mount the correct nozzle at the end of the lance.
5) Electrical Power Connection
Connect the power cable CEE plug to an earthed 3 phase 32 Amp power socket.
Should the CEE plug provided with the machine not fit your electrical system, replace the
plug with one that fits.
6) Machine is now ready for operation.
Operation of the Machine:
A) Ensure that the water supply is open.
B) Turn the main power switch to ON. Press the green START button – machine starts.
Allow the machine a few seconds for the automatic star – delta switch to turn over.
C) Get a firm grip with both hands on the trigger gun handle and lance handle. Press the
trigger and start blasting. Always be aware of other crew members in your working area –
Safety is first priority.
Note: Do NOT let the machine run idle for more than 10 minutes, as it may cause damage to
the pump. (water heats up).
Shut-down of the Machine:
A) Press the red STOP button – machine stops.
B) Squeeze the trigger gun to release the pressure inside the high pressure hose.
C) Turn off the water supply.
Storage of machine during Winter time.
Store the machine in a frost free location.
Drain the water from the machine and flush the pump with anti-freeze fluid.
8
Preparing the machine for operation:
The machine is equipped with the following safety devices:
a) STOP button. The STOP button (pos. 18 Electrical spare-parts assembly) stops the machine
when pushed in. (The optional emergency STOP pos. 41 do the same, twist to release)
b) Main switch. The main switch (pos. 19 Electrical spare-parts assembly) disconnects the
main supply. UN-PLUG MACHINE WHEN REPAIRING!!!
c) Over load relay. The overload relay protects the motor against overloading (pos. 27
Electrical spare-parts assembly)
d) Safety valve. The safety valve built onto the top of the pump is protecting against overpressure (pos. 1 -500 Bar Pump assembly.)
Set-Up & Use:
Check
Daily
Inspection
Task
Check the strainer in the water-tank.
Clean if necessary.
Check the oil level on the crankcase of the pump.
Fill up if necessary.
Check for air-bubbles in the suction hose between tank and pump.
If there are bubbles then tighten the hose-clips.
Check high pressure connections for leakage.
NEVER tighten connections under pressure.
Check high pressure hoses for wear and cracks.
Replace if necessary.
Check the power cord for wear and cracks.
Replace if necessary.
Check the air intake grill of the electric motor.
Clean for dust if necessary.
Notice: To prevent damage to hoses and electrical cord, avoid letting
the high-pressure hoses rub against sharp edges for example manholes
or getting squeezed in door openings etc. Replace if necessary.
Inlet water temperature must be below 60°C (140°F)
9
Maintenance
Lubrication
Renewal of oil
Cleaning
Storage
Maintenance:
Task
Oil renewal on the pump crankcase is to be completed the first time
after no more than 50 hours of use. Oil renewal is hereafter to be
completed in every 400 hours of use. Or at least one time a year.
Use a SAE 30 or10W-40 Oil (part number:83600870)
Quantity: 1,04 Liter (0,27 US Gallon)
Fill up until the oil level is visible in the sight glass.
Switch off the machine. Loosen the oil drain screw on the lower back
of the pump crank-case. Let the oil drain out into a waste oil-tray.
Remount the oil drain screw and pour in new oil through the oil inlet
on top of the pump until visible in the oil sight glass.
Notice: Always dispose of the used oil in a proper manner.
A part of keeping the machine and its accessories in good working
condition is keeping it clean. But NEVER clean the machine itself with
high-pressure. Do not use solvents.
Keep the unit frost free, or flush the pump thoroughly with non
alcoholic antifreeze fluid.
10
Problem
When the main
switch is turned on
And the green start
button is pushed in,
the Water-blaster
will not start.
The motor is
humming but the
pump does not run.
The pressure drops
and the Waterblaster works
irregularly.
The Water-blaster is
running at high
pressure when
trigger is released.
The Water-blaster
does not reach the
right working
pressure when the
trigger handle is
activated.
The Water-blaster
works with
approximately 2/3 of
the maximum
pressure, and the
high-pressure hose is
vibrating.
Trouble shooting and repair:
Repair
Fault somewhere in the power supply.
Is the Power light on?
Make sure the main supply cable is connected correctly. Inspect
cord for cracks and wears.
Too low voltage, one phase is missing. High-pressure pump is
blocked.
Check the mains voltage.
Check the main connection voltage with a meter.
With the machine turned off, hand turn the motor, at the fan, if it
remains blocked, check the pump.
The strain filter in the water tank is blocked or dirty or the water
supply from the tap is insufficient. Air in the Suction hose.
Clean the strain water filter.
The machine should always suck from the water-tank.
Open fresh water tap fully.
Tighten the hose clamps on the suction hose.
The check valve in the un-loader out-let fitting is stuck or leaking.
Clean the check-valve in the un-loader out-let fitting.
Replace the O-ring
Leakage from: Safety valve, hose connections, trigger-gun. The
pump sucks air. The high-pressure nozzle is worn or too big in size.
The un-loader valve or safety valve is not correctly adjusted, or is
worn. Plunger packings are worn.
Turn of the water-blaster. Inspect for leakage. Replace the nozzle.
Set the un-loader, repair if necessary. Change packings.
There is dirt in the valves.
Turn off the Water-blaster. Dismantle the pump head and the
valves, remove the dirt and check to ensure the valve discs are
moving freely and fits tight and smooth to their seats.
11
Problem
Excessive water
leakage from under
the pump
Noisiness
Water in the oil
Trouble shooting and repair:
Repair
Packing is worn
Replace packing.
(Always replace O-ring as-well)
The pump sucks air. One or more valve springs are broken or
stuck. Dirt in the valves. No or too little oil in the crankcase or
motor bearings worn out.
Inspect the low-pressure water supply. Tighten hose clips. Replace
springs. Clean the valves. Replace the bearings.
The Oil-seal is worn out. High moisture in the air (condensing
inside the crankcase) The high pressure seals are completely worn
out.
Check or replace the oil-seals.
Renewal of the crankcase oil more often.
Replace the high pressure seals.
Coupling Mounting
12
CE27-500 WATER-BLASTER
MAIN SPARE-PARTS ASSEMBLY
13
Pos. Item No. Qty.
1 1 EL SYSTEM
2 80101084 8 SCREW
3 80100851 10 WASHER
4 80100597 1 CABLE CLAMP
5 80100775 6 U-BOLT SHORT
6 81000447 1 CABLE HOLDER
7 81000621 1 AXLE
8 81000623 2 SPACER
9 81000618 2 WHEEL
10 80100669 2 CIRCLIP
11 81000619 2 HUB-CAP
12 80100617 4 U-BOLT LONG
13 81000248 1 LEFT FRAME
14 80100053 1 LOCK NUT
15 81000251 1 MECHANICAL BRAKE
16 80100254 1 SCREW
17 81000242 1 BASE PLATE
18 81000445 1 SUPPORT FOR CASTOR WHEEL
19 81000235 1 CASTOR WHEEL
20 80100259 8 LOCK NUT
21 80100506 16 WASHER
22 80100258 4 SCREW
23 80100379 4 SCREW
24 81000240 1 BELL HOUSING
25 81000250 1 LIFT PLATE
26 80100629 2 SCREW
27 83400525 0,5m SUCTION HOSE
28 80100527 2 HOSE CLIPS
29 81201317 1 PUMP ASSEMBLY C27-500
30 81300594 1 HOSE DUMP BACK
31 81000236 1 WATER TANK
32 81000249 1 RIGHT FRAME
33 80100847 10 LOCK NUT
34 81000244 1 COUPLING
35 81000268 1 TAPER BUSH
36 81000594 1 RUBBER ELEMENT
37 81000595 1 TAPER BUSH
38 81000592 2 COUPLING HALF
CE27-500 WATER-BLASTER
MAIN SPARE-PARTS LIST
Description
14
CE27-500 WATER BLASTER
WATER TANK SPARE-PARTS ASSEMBLY
15
Pos. Item No. Qty.
1 81000313 1 WATER TANK WELDED CE20
2 80200402 1 O-RING
3 80500761 1 HOSE NIPPLE
4 80500227 1 HOSE NIPPLE
5 80500975 1 BONDED SEAL
6 80100405 1 CONTRA NUT
7 81000902 1 FILTER STRAINER
8 80500647 1 ELBOW
9 80500429 4 BONDED SEAL
10 80500427 1 NIPPLE
11 80100513 2 LOCK NUT
12 80100605 2 SCREW
13 81000311 1 LID
14 80500495 1 PLUG
15 80100632 1 CONTRA NUT
16 81000425 4 BRACKET FOR U BOLT
17 80200612 1 O-RING
18 80500423 1 QUICK COUPLING
19 81000602 1 FLOAT VALVE COMPLETE
20 80100802 1 CONTRA NUT
21 80500974 1 BONDED SEAL
22 81000606 1 BALL
23 80500604 1 QUICK COUPLING FEMALE
24 80500603 1 QUICK COUPLING HOSE NIPPLE
CE27-500 WATER BLASTER
WATER TANK SPARE-PARTS LIST
Description
16
CE27-500 WATER BLASTER
PUMP SPARE-PARTS ASSEMBLY
17
CE27-500 WATER BLASTER
PUMP SPARE-PARTS LIST
Pos. Item No. Qty. Description
1 81300293 1 UNLOADER HOUSING
2 80100259 2 LOCK NUT
3 80200605 5 BACK UP RING
4 80200598 2 O-RING
5 81300551 2 PIN
6 81300548 2 PISTON FOR UNLOADR
7 81300292 2 PISTON HOUSING UNLOADER
8 80200599 3 O-RING
9 80300549 2 SPRING BLACK
10 81300550 2 SPRING GUIDE
11 80200606 3 O-RING
12 80500792 1 NIPPLE
13 80200604 2 BACK UP RING
14 80100598 6 SCREW Torque: 50Nm / 37 lbf•ft
15 80100599 14 WASHER
16 81300595 2 VALVE SEAT Part of rep. kit 81300619
17 80200597 2 O-RING
18 81300559 2 BALL
19 80300555 2 SPRING FOR BALL
20 81300596 1 PLUG UNLOADER
21 81300597 1 PLUG GAUGE
22 81300821 1 GAUGE
23 81300598 1 CONNECTOR UNLOADER
24 80200291 1 O-RING Part of assembly 81300861 (pos.91)
25 81300290 1 CHECK VALVE UNLOADER Part of assembly 81300861 (pos.91)
26 80300556 1 SPRING FOR CHECK VALVE Part of assembly 81300861 (pos.91)
27 81300289 1 OUTLET FITTING Part of assembly 81300861 (pos.91)
28 80500429 4 BONDED SEAL Part of assembly 81300861 (pos.91)
29 80500436 1 HOSE NIPPLE Part of assembly 81300861 (pos.91)
30 81200600 3 PLUNGER.DISC Part of plunger rep. kit 81201329 (pos.87)
31 81201318 3 RING Part of plunger rep. kit 81201329 (pos.87)
32 GUIDE BEARING part of crank case pos.76 cannot be ordered separately
33 81200603 3 OIL SEAL
34 80200607 3 O-RING Part of back up ring rep. kit 81201377 (pos.79)
35 81201323 3 BRASS RING Part of back up ring rep. kit 81201377 (pos.79)
36 81201321 3 LOW PRESSURE SEAL KIT Part of seal rep. kit 81201328 (pos.60)
37 81201324 3 BACK UP RING Part of back up ring rep. kit 81201377 (pos.79)
38 81201322 3 HIGH PRESSURE SEAL KIT Part of seal rep. kit 81201328 (pos.60)
39 81201325 1 PUMP HEAD
40 80500605 2 BONDED SEAL
41 80500598 2 PLUG Torque: 80Nm / 60 lbf•ft
42 80200598 3 O-RING
43 81200609 3 SPACER
44 80200608 9 O-RING
Part of rep. kit 81300619
Part of assembly 81300861 (pos.91)
Part of rep. kit 81300619
Part of assembly 81300861 (pos.91)
Part of rep. kit 81300619
Part of assembly 81300861 (pos.91)
Part of rep. kit 81300619
Part of assembly 81300861 (pos.91)
Part of rep. kit 81300619
Part of assembly 81300861 (pos.91)
Part of rep. kit 81300619
Part of assembly 81300861 (pos.91)
Part of rep. kit 81300619
Part of assembly 81300861 (pos.91)
Part of rep. kit 81300619
Part of assembly 81300861 (pos.91)
Part of valve assy. 81200617 (pos.56)
Part of valve rep. kit 81200612 (pos.47)
2 set of Repair Kit are required to overhaul both unloader and safety valve
12 80200605 2 BACK UP RING
21 80200598 1 O-RING
22 80200604 1 BACK UP RING
23 80200599 1 O-RING
24 80300549 1 SPRING BLACK
25 81300550 1 SPRING GUIDE
26 80100259 1 LOCK NUT ZN
27 81300292 1 PISTON HOUSING UNLOADER
28 81300548 1 PISTON FOR UNLOADER 500 BAR
29 81300551 1 PIN
2 80200597 1 O-RING
3 81300595 1 VALVE SEAT
4 81300559 1 BALL
11 80200606 1 O-RING
12 80200605 2 BACK UP RING
16 80200291 1 O-RING
21 80200598 1 O-RING
22 80200604 1 BACK UP RING
23 80200599 2 O-RING
80100672 1 NUT
81400654 SAND BLASTING KIT ¼”BSPP W. POKER Pos.(1,4,5,6,7)
Blasting media:
If available, we recommend ”Copper slag” 10/30 Grit (0,5mm to 1,8mm) as blasting media.
If using “Quarts sand”, use a blend of 0,8mm – 1,8mm, do NOT use too fine sand, it will not flow and it
does not give an efficient use of the equipment.
29
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