Dawson EMV 550 User manual

excavator mounted vibrator EMV
550
DAWSON CONSTRUCTION PLANT LTD.
CHESNEY WOLD,
BLEAK HALL
MILTON KEYNES
MK6 1NE, ENGLAND
TEL: [phone]
FAX: [phone]
EMAIL: [email protected]
excavator mounted vibrator
owners manual
operators instructions
spare parts list
safety precautions
maintenance
EMV550 ver. 2018-01
www.dcpuk.com

table of contents
This manual is used to familiarise you with safety, assembly, operation, adjustment, troubleshooting,
and maintenance. Read and follow the recommendations in this manual to ensure safe and e󰀩cient
operation. Keep this manual with the attachment at all times for future reference.
We want you to be completely satised with your new product, feel free to contact your local
authorized service dealer for help with service, replacement parts, or any other information you
may require. If you need assistance in locating a dealer, visit our web site at www.dcpuk.com or call
customer service at [phone].
Whenever you contact your authorised service dealer, always have the model number and serial
number of your product available. These numbers will help provide exact information about your
specic product. You will nd the model and serial numbers on an ID plate located on the product.
The descriptions and specications in this manual are subject to change without notice. Dawson
reserves the right to improve products. Some product improvements may have taken place after this
manual was printed.
preface
Preface / Table of Contents 3
EU Declaration of Conformity 5
Basic Technical Specications 6
Basic Safety Points 7-8
SAFETY FIRST - Quick Reference Guide 9-10
How does the EMV work? 11-12
Mounting Instructions 13-14
Operating Instructions 15-17
Operating Instructions - Driving Piles (Quick Reference Illustrations) 18-19
Operating Instructions - Extracting Piles (Quick Reference Illustrations) 20-21
Recommended Excavator Positions (Quick Reference Illustrations) 22
Maintenance 23-26
Troubleshooting 27-30
EMV550 hose kit 31-33
Parts lists for the EMV550 - Assembly Drawing 34
Appendix A- Auxiliary equipment
(The EMV inspection procedure is also included with this document.)
-

Certicate
Declaration of Conformity
Dawson Construction Plant Ltd
Chesney Wold, Bleak Hall, Milton Keynes MK6 1NE, ENGLAND
Tel: [phone] Fax: [phone]
E-Mail: [e-mail] Website: www.dcpuk.com

Certicate
Declaration of Conformity
We declare that the machinery/equipment detailed below is in compliance with
the applicable regulations and harmonised standards as listed. is
declaration ceases to be valid if alterations are made the
machinery/equipment without agreement with Dawson Construction Plant Ltd.
Category Piling Equipment
Type EMV
Serial Number 55-034
Year of Manufacture 2018
Power kW 120
Suitable Excavator Range 30-55 tonnes
Relevant Regulations:
2006/42/EC Machinery Directive
2000/14/EC Noise emission in the environment -
Measured sound power level on machines representative of this type
Applied conformity assessment procedure according to Annex VIII 113 dB (A)
Technical documentation archive location: MK6 1NE
Applied harmonised standards, in particular:
EN 12100-1:2010 Safety of machinery. Basic terminology and
methodology
EN 16228-1:2014 Drilling & foundation equipment. Common
requirements
EN 16228-4:2014 Drilling & foundation equipment.
Foundation Equipment
EN 16228-7:2014 Drilling & foundation equipment.
Interchangeable auxiliary equipment
Signed by on behalf of DCP
Name / Position DAVID BROWN - MANAGING DIRECTOR
Date / /
Dawson Construction Plant Ltd
Chesney Wold, Bleak Hall, Milton Keynes MK6 1NE, ENGLAND
Tel: [phone] Fax: [phone]
E-Mail: da[email protected] Website: www.dcpuk.com
07 03 2018

DIMENSIONS A B C D E F G H
mm 646 190 370 708 555 1137 1477 50
in 25.4 7.48 14.5 27.9 21.85 44.8 58.2 1.97
FIG.1
basic technical specications
SPECIFICATIONS EMV550
UNITS METRIC US
STATIC MOMENT 8.23 kgm 714 in Ibs
FREQUENCY 2,500 rpm
CENTRIFUGAL FORCE 564 KN 125,592 lbs.F
AMPLITUDE 13.7 mm 0.54 in
MIN HYDRAULIC FLOW RATE 256 L/min 68 gpm
MAX HYDRAULIC FLOW RATE 400 L/min 107gpm
MAX. HYDRAULIC PRESSURE 350 bar 5,076 psi
MIN. HYDRAULIC POWER 120 kW 160 hp
DYNAMIC MASS 1,150 kg 2,576 lbs
TOTAL MASS 1,500 kg 3,360 lbs
MAX. PILE MASS 1,400 kg 3,136 lbs
MAX. PUSH/PULL FORCE 22,500 kg 49,500 lbs
CLAMP FORCE 66 tonne
TYPICAL EXCAVATOR WEIGHT 30 to 55 tonne 33 to 60 ton
* REQUIRED FLOW = MAX. FREQUENCY
MACHINE HAS INTEGRAL FLOW REGULATOR UPTO 120 L/min.
!
Hot
Surface
Caution
C
H
E
AD
G
F
excavator mounted vibrator
06
B

DIMENSIONS A B C D E F G H
mm 646 190 370 708 555 1137 1477 50
in 25.4 7.48 14.5 27.9 21.85 44.8 58.2 1.97
* REQUIRED FLOW = MAX. FREQUENCY
MACHINE HAS INTEGRAL FLOW REGULATOR UPTO 120 L/min.
• The vibrator should only be operated by suitably qualied personnel.
• The vibrator/clamps not to be used for lifting operations.
• It is prohibited to leave an element suspended in the clamps of a vibrator, which is free hanging and out
of operation.
• Don’t leave the vibrator clamped on a pile without being attached to the excavator.
• Extraction pulling force not to be exceeded.
• Pile to be secured to the lifting chain of equal lifting or greater capacity to the load held in the clamp.
• It is prohibited to use vibrator as an impact hammer, by hammering with open clamp.
• There should be visual contact between operator and slinger (banksman) at all times.
• Monitor the piling operation constantly – stop the process immediately if any danger occurs.
• Do not operate the vibrator if any person is within the High Risk Area– see high risk denition..
• Consider machine stability at all times.
• The operator should inspect the equipment for defects every day and before being taken in to service. Any
defects that a󰀨ect operational safety should be corrected before the equipment is taken into service.
• Pay attention to the Safe Working Load of all lifting accessories at all times. (See auxillary equipment).
• The working area should be properly illuminated.
• Work safely at all times and within the requirements of all local legislation.
• The vibrator can become very hot during operation – do not touch it unless wearing appropriate
protective clothing.
WHO IS RESPONSIBLE?
Those who are in charge of, or responsible for, the use and maintenance must ensure that the vibrator and all it's
auxiliary equipment are in good condition.
Piling should only be carried out under the supervision of an appropriately qualied and experienced person who
can assess that the work is carried out safely.
The excavator operator must ensure that his communication signals are understood, by those on the ground, and
followed. During piling operations he must watch out for any potential hazards.
WORKING CONDITIONS / ADVERSE WEATHER CONDITIONS
Vibrators should only be operated and driven on rm ground with clear visibility of the working area and the
process monitored constantly. Operators must have a clear understanding of the site assessment and method
statement. This assessment will cover risks and site actions that have been implemented for the event of adverse
weather conditions.
The vibrator stand must stay upright on level ground (at all times) to avoid personnel injury.
WORKING NEAR UNDERGROUND / OVERHEAD OBSTACLES
Before the start of any piling work it is up to the contractor to identify if there are any underground cables, utilities
and overhead obstacles within the working area which could be dangerous to personnel, including but not limited
to live electrical cables. This should be fully covered in the site specic method statement. All personnel on site
should have a full understanding of the risks. In the case of unforeseeable contact or damage of an underground
/ overhead obstacle, then work must stop immediately and the person in charge informed.
THE HIGH RISK AREA
This is an area dened as that being within an approximate radius of the vibrator which is calculated by the
following formula: Pile length (m) + ½(Pile Length)
This area can be either this or within the slewing radius of the excavator, whichever is greater. The High Risk
Area is active while the vibrator is working or the excavator is in operation. (Please refer to operator’s instruction
for full details)
basic safety points
www.dcpuk.com 07

Personnel are at risk when within this area from:
• Falling piles – should the pile be handled incorrectly
• Liquids under high pressure and associated components
• Mechanical failures of equipment components
• Noise – wear ear protection equipment when inside this area
• Unexpected movement of the excavator (slewing, overturning)
TRANSPORTING THE VIBRATOR
When transporting the vibrator, ensure it is placed correctly in the stand.
Once in place on the stand the jaws must be closed. Release the hydraulic hoses from the excavator (the hard
jaws will remain closed) and cap the hose ends to prevent contamination. Disconnect the vibrator from the
excavator.
excavator mounted vibrator
08
MODEL
EMV70 EMV220 EMV300 EMV450 EMV550
MAX PILE MASS 800kg 800kg 800kg 1,000kg 1,400kg
LIFTING CHAIN SWL
(t= 1000kg)
3.2t 3.2t 3.2t 1.6t STD CHAIN
3.2t ADAPTOR
1.6t STD CHAIN
3.2t ADAPTOR
continued - basic safety points
TRANSPORTING PILES ON SITE
Transporting a pile using the vibrator should only be done over a small distance, with the clamp fully engaged
on the pile top and with the lifting chain tted. The load should be carried as close to the ground as possible
to minimise falling risk. Should the grip on the pile be reduced during this procedure, the excavator must
stop, and a better grip e󰀨ected. Should a pile slip then the lifting chain could snap and cause an accident.
When transporting a pile extreme care must be taken to ensure that no one is in the High Risk Area and that
the pile is handled in such a way as to ensure no danger to site personnel at any time.
In order to avoid extensive transporting, have the piles laid out as close to the point of installation as
possible. Do not use the excavator with the EMV550 installed to handle bundles of piles around the job site.
The maximum pile weight allowed to be transported by each EMV model is shown in the table below:
RATCHET STRAP
SECURING EMV TO STAND
JAWS CLOSED IN STAND

www.dcpuk.com 09
The vibrator should only be operated by suitably competent personnel.
There should be visual contact between operator and banksman at all times.
Monitor the piling operation constantly - interrupt the process immediately if any
danger occurs.
Do not operate the vibrator if any unauthorised personnel are within the HIGH RISK
AREA. = ( Pile length + ½ Pile Length) or within the slewing radius of the excavator.
Consider machine stability at all times.
The operator should inspect the equipment for defects every day and before being
taken into service.
Any defects that a󰀨ect operational safety should be corrected before the equipment
is taken into service
Pay attention to the Safe Working Load of all lifting accessories at all times.
The working area should be properly illuminated.
Work safely at all times and within the requirements of all local legislation.
The vibrator can become very hot during operation - do not touch it unless wearing
appropriate protective clothing.
The maximum weight of pile that can be used with the;
EMV70, 220, 300 = 800kg
EMV450 = 1000kg
EMV550 = 1400kg
The most important hose on the machine is the drain line which must be fed either
directly into the hydraulic tank in the excavator or connected to the breaker circuit
return line. (Recommended Ø1/2” hose minimum).
WARNING!
IT IS IMPERATIVE THAT THE DRAIN LINE IS NOT RESTRICTED AS THIS WILL
CAUSE THE BUILD UP OF PRESSURE WHICH WILL DAMAGE THE MOTOR.
Basic Safety Points
Responsibility
IN THE EVENT OF MALFUNCTION, DAMAGE OR LEAKAGE OF OIL, DAWSON
CONSTRUCTION PLANT MUST BE NOTIFIED IMMEDIATELY.
The equipment is hired under C.P.A. conditions and as such any theft or damage
caused by misuse or abuse will be charged accordingly.
SAFETY FIRST
IMPORTANT:- READ FULL OPERATING INSTRUCTIONS @ WWW.DCPUK.COM
Those who are in charge of, or responsible for the use and maintenance must ensure
that the vibrator and all its auxiliary equipment are in good condition.
Piling should only be carried out under the supervision of an appropriately qualied
and experienced person who can assess that the work is carried out safely.
The excavator operator must ensure that his communication signals are understood,
by those on the ground, and followed. During piling operations he must watch out for
any potential hazards.
QUICK REFERENCE GUIDE

Allow the excavator engine to warm up, particularly in temperatures below 10°C.
Pay daily attention to the general condition of the hard jaws (vibrator clamp). Ensure
they are replaced once signs of wear are apparent. Check for loosened connections
daily.
Check both the vibrator and auxiliary equipment for damage. Pay particular attention
to the lifting chain assembly. Any defects should be immediately notied to the person
in charge. DO NOT OPERATE A DAMAGED UNIT. The Ø40mm hole in the pile for the
lifting chain must be spaced 250mm from the top of the pile to avoided clash with the
EMV jaws.
Refusal - Under normal conditions, refusal is dened when the time taken to drive a
pile 250mm exceeds 5 minutes. The penetration distance of 250mm is absolute, i.e. No
conversion is allowed, for instance, 20 minutes for 1m penetration.
Rebound - This occurs when a large proportion of the hammers energy is reected
back up through the pile as a result of hitting an impenetrable layer or obstruction. The
reected forces will be transferred back into the hammer and the suppressor head, and
as a result, the head will start “jumping” relative to the vibratory case. In this situation
driving should be stopped immediately.
If the pile reaches premature refusal then it will be necessary to loosen up the
ground, possibly through drilling. UNDER NO CIRCUMSTANCES SHOULD
THE PILE BE FORCED FURTHER. Alternatively a larger piling device should
be used.
Operating Procedures Summary - Read Full Operating Instructions at www.dcpuk.com
Grease all grease points - Clamp Cylinder, Saddle Swival, Dipper Pins
Check the screws, bolts, tting etc. for tightness
Check hydraulic hoses for leaks
Check oil level in the excavator hydraulic tank
Check the gear oil level in the vibrator. The level must be halfway up the sight glass
(change oil ever 50hrs).
Check lifting chain coupler and chain clamp for damage, wear and tear
Daily Maintenance
EMV 70 220 300 450 550
MAXIMUM PUSH/
PULL LOADING
lbs 6,171 16,500 33,600 33,600 49,500
kg 2,800 7,500 15,000 15,000 22,500
EMV70 (requires 30 L/min, 240 bar) ~ 5.5 - 17 t excavator
EMV220 (requires 90 L/min, 280 bar) ~ 7 - 18 t excavator
EMV300 (requires 130 L/min, 280 bar) ~ 13 - 25t excavator
EMV450 (requires 195 L/min, 270 bar) ~ 25 - 45t excavator
EMV550 (requires 256 L/min, 280 bar) ~ 30 - 55t excavator
For completness, the ow and pressure from the excavator to the EMV
should be checked against the specication sheets to conrm adequate
hydraulic power. As a guide the EMVs typically suit the following base
machine sizes:
Dawson Constrcution Plant
Chesney Wold.
Bleak Hall,
Milton Keynes,
MK6 1NE, England
Tel: [phone]
Fax: [phone]
www.dcpuk.com
WARNING!
The postion of the quick hitch to
the dipper arm.
The quick hitch should always
be horizontal, with the direction
of force being vertical as shown.
Incorrect alignment could result in
serious part failure and risk to life!
For full details read operators instructions & spare parts
manuals, available to view or download at www.dcpuk.com
DIRECTION OF FORCE
HORIZONTALATALLTIMES
excavator mounted vibrator
10

EMV 70 220 300 450 550
MAXIMUM PUSH/
PULL LOADING
lbs 6,171 16,500 33,600 33,600 49,500
kg 2,800 7,500 15,000 15,000 22,500
EMV70 (requires 30 L/min, 240 bar) ~ 5.5 - 17 t excavator
EMV220 (requires 90 L/min, 280 bar) ~ 7 - 18 t excavator
EMV300 (requires 130 L/min, 280 bar) ~ 13 - 25t excavator
EMV450 (requires 195 L/min, 270 bar) ~ 25 - 45t excavator
EMV550 (requires 256 L/min, 280 bar) ~ 30 - 55t excavator
Modern pile vibrators basically work in the same way. Pairs of high-speed contra-rotating eccentric weights
are geared together so as to produce net vertical vibratory forces.
The vibrations produced are transmitted to the pile through a powerful hydraulic grip. Consequently the pile
is vibrated at the same speed and displacement (or movement) as the gearbox itself. This vibration e󰀨ect is
transmitted to the pile tip where the surrounding soils become almost uid like.
The uidising e󰀨ect on the soil permits particles to shu󰀪e themselves around creating some spaces for the
pile to move into. This combined with the weight of the pile and vibrator is adequate to push the pile into the
ground.
Not all soil types will however uidise. Clays soils are very cohesive and extremely dense by comparison
to sands and gravels where vibrators work best. The dense clay soil does not allow soil particles to shu󰀪e
them selves around so no uidising e󰀨ect can occur. Also the ground e󰀨ectively sticks itself to the pile and
much of the power generated is lost in shaking the ground.
The EMV is particularly e󰀨ective for its size and weight because it is able to utilise the crowd force available
from the excavator to add further push force to the pile.
The gearbox in the EMV unit is driven by a hydraulic drive motor that receives hydraulic power from the
excavators bucket ram circuit. Typically this circuit will be able to supply adequate working pressure but
excessive amount of oil ow rate. The EMV has a built-in ow regulator that limits the oil ow rate supplied
to the drive motor so that the gearbox can not be run too fast. This is essential to prevent excessive bearing
loads and correct performance of the unit.
In addition, the ow regulator has a sequence valve built-in that will not allow the vibrator to run until
adequate clamping force has been applied to the pile – an essential safety feature. This simplied hydraulic
system enables simple installation and reliable performance.
how does the emv work?
www.dcpuk.com 11

Transport
Stand
Hydraulic
Drive Motor
Gearbox
containing
accentric
weights
Saddle
Assembly
with Swivel
Flow Regulator
and Sequence
Valve
F
c
fv
fc
fh
fv
fc
fh
no.1
Motion of a pair of eccentrics
Corresponding Sinusoide
no.2
Vibratory
Amplitude
Time
excavator mounted vibrator
12
eccentric
weight
direction of
motion
resulting
direction
of force
drive gear
gearbox

The excavator hydraulic power output must be matched to the requirements of the vibratorbefore
installation. A standard excavator enquiry sheet is available for the user to complete prior to considering the
suitability of the excavator for use with the EMV550.
MOUNTING THE VIBRATOR
The vibrator is mounted in place of the excavator’s bucket, and should be allowed to hang freely once
installed. Remove the bucket prior to installing the EMV.
A shear pin is used to x the vibrator to the boom via an adaptor bracket. Di󰀨erent adaptor brackets may
be required for di󰀨erent excavators. Check this prior to the start of installation. If the excavator is tted with
a quick hitch it will either be necessary to remove it or purchase half a quick hitch and modify to suit the
Dawson adaptor bracket.
Standard brackets are available for di󰀨erent machine size ranges. Typically, one of these brackets can be
adapted to t a variety of di󰀨erent pin sizes and dipper end widths by using a kit of bushes and spacers.
mounting instructions
www.dcpuk.com 13
SECTION THROUGH BOOM END
Adaptor Bracket
Spacers
Bushes
Shear Pin

Ensure all hydraulic connections are clean prior to tting and that no contamination is introduced into the
hydraulic circuit during installation – this may cause internal component damage to the hydraulic system or
faulty operation of the vibrator or excavator.
If quick release couplings are installed on the excavator they should be replaced. It is strongly recommend-
ed that quick release couplings are not used for this application. For permanent installation ball valves can
be added to the excavator boom to ensure rapid changing between bucket and EMV hydraulic function. As
the bucket ram is no longer in use, it should be retracted and fastened down.
WARNING: THE DRAIN LINE MUST FLOW DIRECTLY TO TANK WITHOUT RESTRICTION. FAILURE TO
DO SO WILL RESULT IN THE HYDRAULIC DRIVE MOTOR BLOWING ITS CASING SEAL OR FRONT
CASING CASTING – THIS DAMAGE IS VERY COSTLY TO REPAIR.
The EMV is tted with a motor case blow-o󰀨 valve. This valve is e󰀨ectively a check valve that vents some
oil to atmosphere should the motor case drain line pressure exceed approximately 6 bar. It is not a pressure
protection valve and is intended only as an early warning valve, giving a visual signal that something is
wrong. Any sign of this and use of the EMV should be halted immediately and the cause investigated.
The blow-o󰀨 valve does not guarantee the motor will be protected in all circumstances!
HYDRAULIC HOSES - LAYOUT & CONNECTIONS
The pressure line is usually connected to the bucket ram “extend” circuit and the return line to the bucket
ram “retract” circuit. The third, and smaller, drain line is fed either directly back into the hydraulic tank on
the excavator, or connected to the breaker circuit return line. Excavators will rarely have the same ttings as
these on their bucket circuit so adaptor ttings must be used.
excavator mounted vibrator
14
Connect drainline
directly to
excavator tank
Connect to bucket
ram retract hose
Connect to bucket
ram extend hose
continued - mounting instructions

PREPARATIONS - BEFORE DRIVING / EXTRACTING PILES
It is the excavator operator’s responsibility to ensure that the equipment is functioning and performing
correctly and that the EMV method of piling is implemented e󰀩ciently.
In order to meet this responsibility please note the following points:
a. Bundles of sheet piles should be set out on the job site so as to minimise the amount of handling
and travelling required with the EMV.
b. Ensure that all piles have Ø40mm(Ø1½”) holes cut in them approximately 250mm(10”) down from
the top edge and central prior to commencement of the piling operation.
c. Allow the excavator engine to warm up, particularly in temperatures below minus 10°C and warm
the excavators hydraulic system by, for example, tracking backwards and forwards – this avoids the
EMV’s blow-o󰀨 valve spitting oil on initial start-up.
d. Before work commences slowly operate the bucket ram lever in both directions. It is particularly
important that the vibrator is allowed to run freely for approximately 30 seconds, this allows the
gearbox oil to reach all the necessary lubricating points.
e. Review section “Basic Safety Points” in this manual before starting work.
f. Review section “Daily Maintenance” before taking the equipment into service.
g. It is particularly important that you make sure that during a piling operation the vibrator is kept
directly above and in line with the pile, otherwise the piling energy is transferred to the excavator
arm and causes unnecessary wear and may lead to pile damage.
DRIVING PILES
a. Ensure that all safety procedures and maintenance has been carried out before starting the
excavator – see above.
b. Ensure that it is safe to move the dipper arm. Release the stand from the jaws of the vibrator by
operation of the retract bucket ram control function in the cab. Manoeuvre the vibrator above one
end of the pile to be pitched, so that there is enough distance to allow safe insertion of the lifting
chain through the hole at the top of the pile.
c. Manoeuvre the vibrator above one end of the pile to be pitched, so that there is enough distance to
allow safe insertion of the lifting chain through the hole at the top of the pile.
d. Check which way around the pile has to be lifted before inserting the lifting chain – was the
previous pile pitched left or right handed? Insert the lifting chain correctly (no twists, knots etc)
through the lifting hole in the pile and nally with the chain clamp. Allow enough free chain length
for the pile to rotate to vertical during the lifting process without jamming against the underside of
the clamp body. If this happens the chain will be overloaded, may subsequently break and allow
the pile to fall – this is a sever hazard to all site personnel and must be avoided at all times. Do not
allow too much chain so that the top of the pile hangs too far away from the clamp when it is raised
to the vertical – this will make it di󰀩cult to engage the pile in the clamp.
e. Clear all personnel standing in the High Risk Area and lift up the pile until it just hangs freely o󰀨 the
ground.
f. Lower the pile slowly so that the pile can be correctly inserted into the clamp. Once rmly inserted,
close the jaws.
g. Manoeuvre the pile to the insertion point and push the pile slowly into the ground. Plumb the pile
and ensure all personnel are out of the High Risk Area.
operating instructions
www.dcpuk.com 15

h. Start the vibrator and adjust (crowd) the hydraulic rams so that the vibrator is level and always sits
directly on top of the pile as it goes into the ground. Do not over push the vibrator - stop pushing
when the gearbox starts to vibrate against the rubber stops on the underside of the saddle (the
deection is 146mm (5.75”).
i. When the pile has reached the required depth turn the vibrator o󰀨 by returning the control lever to
the central position and allow all vibrations to stop. Release the hard jaws from the pile by slowly
operating the control lever in the opposite direction. Do not operate the control lever from one
extreme position to the other whilst the EMV is running – it will cause hydraulic system pressure
spikes to occur.
j. Remove the chain clamp and lifting chain from the pile lifting hole.
k. Repeat steps c-j to continue.
l. When piling progress is less than 100mm/min (4ins/min) release ground
resistance by augering or by water jetting. Under no circumstances should the pile be forced any
further.
EXTRACTING PILES
a. Ensure that all safety procedures and maintenance has been carried out before starting the
excavator.
b. Ensure that it is safe to move the dipper arm. Release the stand from the jaws of the vibrator by
operation of the retract bucket ram control function in the cab. Manoeuvre the vibrator above one
end of the pile to be extracted so that there is enough distance to allow safe insertion of the lifting
chain through the hole at the top of the pile. Conrm suitable hole in pile.
c. Insert the lifting chain correctly (no twists, knots etc) through the lifting hole in the pile and secure
with the chain clamp. Allow enough free chain length for the pile to rotate to horizontal during
the lowering process without jamming against the underside of the clamp body. If this happens
thechain will be overloaded, may subsequently break and allow the pile to fall – this is a sever
hazard to all site personnel and must be avoided at all times.
Under no circumstances should a pile be pulled using the lifting chain only.
d. Clamp the vibrator onto the pile head ensuring that it is level. Ensure all personnel are out of the
High Risk Area.
e. Start the vibrator and allow the soil to loosen around the pile. Start to lift up the pile. Ensure the
pile clutches are not rubbing together. Pay attention to the distortion of the rubber sandwich
mounts - under no circumstances should these mounts be allowed to deect by more than the
stipulated amount shown on Figure 1 in section 2.0. Reduce the extraction force to continue
pulling. Continue extracting the pile until the pile foot is almost extracted. Stop vibration at this
point and carefully pull the pile out the remaining short distance.
f. Move the pile to a suitable area, and place the pile on the ground. Ensure that all personnel are
out of the High Risk Area.
g. Hold the pile on the ground and release the jaws. Raise the vibrator o󰀨 the pile slowly ensuring
that there is no snatch on the lifting chain. Slowly lower the pile towards the ground.
h. Remove the chain clamp and lifting chain from the pile lifting hole.
i. Repeat steps c-h to continue.
excavator mounted vibrator
16
continued - operating instructions

Maximum deection of sandwich mounts is achieved during extracting when the gearbox casing hits the
safety stops (140mm). When driving piles a maximum deection of 146mm can be achieved. This is when
the top fasteners are inline with the lower.
www.dcpuk.com 17

excavator mounted vibrator
18
The illustrations below are to show visually a simplied version of the operating instructions given in part
5.2/5.3, driving / extracting piles. 5.1 preparation before driving / extracting piles must be read before these
illustrations.
Set out bundles of piles on the job sites to
minimise the amount of handling time and
travelling.
Ensure it is safe to move the dipper arm.
Release the stand from the jaws of the
vibrator by operating the retract bucket ram
control function in the cab.
Move the vibrator to the pile to pitched. Leave
enough room for the safe insertion of the
lifting chain.
Insert lifting chain correctly to safety
standards
Clear all personnel standing in high
risk area.
Lift pile up till free hanging above ground..
operating instructions driving piles
(quick reference illustrations)

Lower the pile slowly so that the pile can be
correctly inserted into the clamp. Once rmly
inserted, close the jaws.
Manoeuvre the pile to the insertion point and
push the pile slowly into the ground. Plumb
the pile then ensure all personnel are out of
the High Risk Area.
Start the vibrator and adjust (crowd) the
hydraulic rams so that the vibrator is level
and always sits directly on top of the pile as it
goes into the ground.
When the pile has reached the required depth
turn the vibrator o󰀨 by returning the control
lever to the central position and allow all
vibrations to stop.
Remove the chain clamp and lifting chain
from the pile lifting hole.
90°
www.dcpuk.com 19

excavator mounted vibrator
20
Ensure it is safe to move the dipper arm.
Release the stand from the jaws of the
vibrator by operating the retract bucket ram
control function in the cab.
Move the vibrator to the pile to be extracted.
Leave enough room for the safe insertion of
the lifting chain.
Clear all personnel standing in high risk
area.
Under no circumstances should a pile be
pulled using the liftin chain.
Clamp the vibrator onto the pile head
ensuring that it is level.
90°
operating instructions - extracting piles
(quick reference illustrations)
The illustrations below are to show visually a simplied version of the operating instructions given in part
5.2/5.3, driving / extracting piles. 5.1 preparation before driving / extracting piles must be read before these
illustrations.