
Concrete Finisher Proposition Warning

Concrete Finisher Ma nual (Version 1)
MODEL……………….
SERIAL No…………..
DATE OF
MANUFACTURE…….
WEIGHT………………
MODELE……………...
Nº DE SERIE………….
DATE DE
FABRICATION……….
POIDS…………………
MODELO……………...
Nº DE SERIE………….
FECHA DE
FABRICACIÓN……….
PESO…………………
MODELO……………...
Nº DE SÉRIE………….
DAT A D E
FABRIC……………….
PESO……………….…
Quality Manager - On behalf of ESI
EC DECLARATION OF CONFORMITY / DECLARATION CE DE
CONFORMITE / DECLARACIÓN DE CONFORMIDAD CE / DECLARAÇÃO
We, ESI, 101 Gannaway Drive Suite #3 PO Box 997 Jamestown, NC 27282 USA, hereby c ertify that if the product described
within this certificate is bought from an authorized ESI dealer within the EEA, it conf orms to the following directives: Machinery
Directive 2006/42/EC, Electromagnetic Compatibility Directive 2004/108/EC (as amended by 92/31/EEC &
physical agent (vibration) conforms with the directive 2002/ 44/EC. The low voltage directive 2006/95/EC, BS EN ISO 12100-1/2
Safety of machinery and associated harmonized standards, where applicabl e. Noise emissions conform to directive 2005/88/EC
Annex VI), for machines under article 12 the notified body is TÜV Rheinland Product Safety GmbH - Am Grauen Stein - D-
51105 Köln, Germany.
Nous soussignons, 101 Gannaway Drive Suite #3 PO Box 997 Jamestown, NC 27282 USA, certifions que si le produit décrit
dans ce certificat est acheté chez un distributeur de la marque déposée “ESI” au sei n de la E EA, c elui-ci est conforme aux norms
CEE ci-après: Norme de la machine 2006/42/CE, Norme compatible pour l’électromagnétisme
92/31/CEE et 93/68/CEE). Le nombre de vibrations est en accord avec la directive 2002/44/CE. Caractéristiques basse tension
2006/95/CEE, BS EN ISO 12100-1/2 , Norme de sécurité des machines et des critères associés et configurés, si applicable. Les
émissions debruit sont conformes à la directive 2005/88/CE Annexe VI pour machines, article 12. L’objet mentionné est TÜV
Rheinland Product Safety GmbH - Am Grauen Stein - D-51105 Köln, Allemagne.
La Sociedad, 101 Gannawa y Drive Suite #3 PO Box 997 Jamestown, NC 27282 USA, por el presente documento certifica que
si el producto descrito en este certificado es comprado a un distribuidor autorizado de ESI en la EEA, este es conforme a las
siguientes directivas: 2006/42/CE de la CEE, Direct iva 2004/108/CEE sobre Compatibi lidad Electromagnétic a (según enmiendas
92/31/CEE y 93/68 CEE). El numero de vibrac iones esta de acuerdo con la Directiva 2002/44/CE. Directiva sobre Baj o Voltaje
2006/95/CEE, BS EN ISO 12100-1/2 de Seguridad de Maquinaria y Niveles armonizados está
ndares asociados donde sean
aplicables. Emisión de Ruídos conforme a la Directiva 2005/88/CE Anexo VI para má
quinas bajo articulo 12 la mencionada
unidad está TÜV Rheinland Product Safety GmbH - Am Grauen Stein - D-51105 Köln, Germany.
O signatário, 101 Gannaway Drive Suite #3 PO Box 997 Jamestown, NC 27282 USA, pelo presente, declara que se o produto
descrito neste certificado foi adquirido a um distribuidor autorizado do ESI em qualquer pais da EEA, está em conformidade com o
estabelecido nas seguintes directivas comunitárias: 2006/42/CE, Direct iva de Compatibilidade Electromagnética 2004/108/CEE
(conforme corrigido pelas 92/31/EEC & 93/68 EEC). O numero de vibrações está de acordo com a directiva 2002/44/CE LB. A
directiva de baixa voltagem 2006/95/CEE, BS EN IS O 12100-1/2 Segurança da maquinaria e às normas harmonizadas afins se
aplicáveis. As emissões de ruido respeitam e estão dentro das directivas para máquinas 2005/88/CE Anexo VI, artigo 12, sendo o
organismo notificado TÜV Rheinland Product Safety GmbH - Am Grauen Stein – D-51105 Köln, Germany.
E

Foreword
This manual has been written to help you operate your concrete finisher safely. It is intended
primarily for dealers and op erators of ESI concrete finishers. It is recommended that you keep this
manual or a copy of it with the machine, so that it is readily available for reference.
Before you operate or carry out any maintenance on this machine, YOU MUST READ and
UNDERSTAND this manual.
Should you have ANY QUESTIONS about the safe use or maintenance of this machine after
reading this manual, ASK YOUR SUPERVISOR or CONTACT:
ESI Equipment Synergy International at 1-866-648-7101 (toll free)
ESI reserves the right to change machine specification without prior notice or obligation.
Safety Notation Explanation
Texts in this manual to which special attention must be paid are shown in the following way:
Contents
EC Declaration of Conformity .................................................................................................................. 3
Foreword.................................................................................................................................................. 4
Safety Information ............................................................................................................................... 5-6
Environment ............................................................................................................................................ 7
Machine Description ................................................................................................................................ 8
Pre-Start Checks ..................................................................................................................................... 9
Start And Stop Procedure.................................................................................................................. 9-10
Operation ......................................................................................................................................... 10-12
Service and Maintenance ................................................................................................................ 13-14
Trouble Shooting ................................................................................................................................... 15
Technical Data ....................................................................................................................................... 16
Transportation and Storage ................................................................................................................... 17
Warranty ................................................................................................................................................ 18
This WARNING sign indica tes a pote ntial h azard, whic h if ignore d coul d result in
the DEATH of the operator and/or those close by.
This CAUTION sign in dicates a potential hazard, which if i gnored, could resu lt in
injuries to the operator and/or those close by, as well as damaging the machine.
CAUTION

Concrete Finisher Ma nual (Version 1)
Safety Information
For your own personal prot ection and for the saf ety of those around you, please read and ensur e
you fully understand the following safety information. It is the responsibility of the operator to
ensure that he/she fully understands how t o o perate this equipment s af el y. If you are uns ure about
the safe and correct use of the concrete finisher, consult your supervisor or ESI.
General Safety
• The owner of this m achine must observe, and also train the user of the machine to obser ve,
the effective labour protection laws in the country of application.
• This machine is to be used for is intended application only.
• This machine must only be operated by well-trained personnel.
• Personal Protective E quipment (PPE) m ust be worn by the o perator whenever t he equipment
is being used.
• Cordon off the work area and keep members of the public and unaut horised personnel at a
safe distance.
• Do not lift the machine with the float pans on the blades, remove pans first before lifting.
• Make sure you know how to saf ely switch this machine OFF befor e you switch it ON in case
you run into any difficulties.
• Always switch OFF the engine before servicing it.
• During use, the engine becomes very hot. Always allow the engine to cool down before
touching it or adding fuel.
• Never leave the engine running and unattended.
• Never remove or tamper with any fitted guards; the y are there for your own protec tion. If they
are damaged or mis sing, DO NOT USE T HE MACHINE u ntil the guard h as been replaced or
repaired.
• Always switch OFF the engine before transporting it, moving it around site or servicing it.
• Do not operate the machine when you are ill, feeling tired or when under the influence of
alcohol or drugs.
• This machine is designed to el iminate the possible risks arising f rom the use of it. However,
risks DO reside, and these res idual risks are not always clearly recognizable and may cause
personal injury or property damage, and possibly death. If such unpredictable and
unrecognizable risks become apparent, the machine must be stopped immediately, and
operator or his supervisor must take appropriate measure to eliminate such risks. It is
Improper maintenance can be hazardous. Read and understand this section
before you perform any maintenance, service or repairs.

sometimes necessary that the manufacturer must be informed of such an event for future
countermeasures.
Fuel Safety
• Before re-fuelling, switch off the engine and allow it to cool.
• When re-fuelling, use a proper funnel, and avoid spilling over the engine.
• When re-fuelling, DO NOT smoke or allow naked flames in the area.
• Spilt fuel must be made safe im mediatel y by using the appropriat e absorbent . If f uel is spi lt on
your clothes, change them.
• Store fuel in an approved, purpose made container away from heat and sources of ignition.
Health & Safety
Fuel
Do not ingest fuel or inhale fuel vapors and avoid contact with your skin. Wash fuel splashes
immediately. If you get fuel in your e yes, irrigate with a large amount of water and seek medical
attention as soon as possible.
Exhaust Fumes
PPE (Personal Protective Equipment)
Suitable PPE must be wor n when using this equ ipment i.e. s afety goggles, gl oves, ear defender s,
dust mask and steel toe-ca pped foot wear (with anti-s lip soles f or added protectio n). W ear clothing
suitable for the work you are doing .
Fuel is flammable. It may cause injury and property damage. Shut down the
engine, extinguish all op en flames and do not smoke while fill ing the fuel tank.
Always wipe up any spilled fuel.
The exhaust fumes produced by this machine are highly toxic and can kill! Make
sure the work area is adequately ventilated.

Concrete Finisher Ma nual (Version 1)
Environment
In order to protect the environment please
recycle any discarded apparatus or
accessories. The table beside provides
you with a list of the machine’s
components and their resp ectiv e m aterials.
Take the discarded apparatus to the
relevant recycling facilities.
Belt Guard Glass Fiber
Blade Guard Steel
Bedplate Steel
Aluminum, Steel &
Phosphor Bronze
Cast Iron, Steel &
Phosphor Bronze

Machine Description
EWT90
EWT120
2. Pitch Control Lever
3. Cutout Switch Handle
4. Exhaust Guard
5. Air Filter
7. Recoil Starter
8. Blade Guard
9. Belt Guard
10. Handle Height Adjuster
11. Lifting Bar
2. Pitch Control Lever
3. Centri-safety Switch
Handle
4. Handle Height Adjuster
5. Exhaust Guard
6. Air Filter
8. Fuel Tank
9. Recoil Starter
10. Blade Guard
11. Belt Guard

Concrete Finisher Ma nual (Version 1)
Pre-Start Checks
The following pre-start inspection must be per f ormed before the start of eac h work s es s ion. Please
refer to the service & maintenance section for detail ed guidance. If any fault is discov ered, the
concrete finisher must not be used until the fault is rectified.
1. Thoroughly inspect the machine for s igns of damage. Mak e sure all guards are in place and
secured.
2. Check hoses, filler openings, drain plugs and an y other areas for signs of leakage. Fix an y
leaks before operating.
3. Check the engine oil level and top up as necess ary. Use proper engine oil with the pr oper
viscosity (SAE 10W-30 recommended).
4. Check the engine fuel level and top up as n ecessary. Use clean fuel. Use of c ontaminated
fuel would damage the fuel system. Do not overfill fuel tank, this may cause fuel spillage.
5. Check that air filter is clean. Excessive dirt/dust accumulation within the filter element will
cause erratic engine operation. Clean the air filter element when it is contaminated. (See
Service & Maintenance Section)
6. Check for fuel and oil leaks.
Start and Stop Proce dure
Before starting the engine, make sure that the centri-safety switch is in the ON position and
the Throttle Lever is set to the IDLE position.
Figure 1 – Throttle Lever
Improper operation can be hazardous. Read and understand this section
before you start the machine.

1. Verify the correct blades for the job have been chos en and that they are properl y installed.
Inspect the blades carefully for damage. Never use any questionable blades.
2. Check to be sure the blades are free of obstructions and the area is clear for operation.
3. Visually inspect the concrete finisher. Check that all fasteners are secured and m echanical
parts are in proper working order.
Before Starting Gasoline Engin e
1. Check the oil in the engine crankcase. Be sure to maintain the proper level per the engine
manufacturer specific ations. If the oil is dirty and in need of changing, follow the Engine U ser
Manual instructions.
2. Check the fuel supply. Refer to Engine User Manual.
Operation
Before Starting the Engine
1. Visually check to be sure that the blades are free of obstructions and the area is clear for
operation.
2. Grip the operator’s handle, then pull the recoil starter knob in order to start the engine.
Figure 2 – Correct starting procedure and centri-safety switch
Note: Before starting the engine, you should grip the operator’s handle always. The concrete
finisher is fitted with a centri-safety switch which automatically cuts out power to the engine if
control is lost. If the operator happe ns to let go or lose control of the handl e, the centrifug al force
will cause the switch to m ove to the OFF position stopping the concr ete finisher within one an d a
half turns. (Figure 2)
3. The operator of the concrete f inisher shall take care that nobod y stays or gets into da nger area
during operation.

Concrete Finisher Ma nual (Version 1)
Moving the Concrete Finisher
Get into the op er ator’s position behind t he centr e of ha ndl e w ith good footing and app l y the thro ttl e
slowly until desired speed is obtained. The blades of the concrete finisher spin in a clockwise
direction. All ESI concrete finisher ar e directed left or right by applying a s light upward (lifting) or
downward (lowering) pressure on the handle (respectively).
• Push handle down and machine will move to the right.
• Lift handle up and machine will move to the left.
• Slightly twist to the right and the machine will move
forward.
• Slightly twist to the left and the machine will move
backward.
• Holding the handle in neutral position, the machine will
remain stationary.
Preparation of Concrete Surface
Use of a mechanical or air vibrating screeding m achine to strike the co ncrete surface to le vel will
provide good compaction to the slab and produce an ideal surface for finishing. It should be
remembered floating/finishing machines will not repair or correct a poorly screeded slab.
Floating Operation
Floating can be perf ormed by using e ither the com bination blades (furnished with the mac hine) or
the optional Float Pan. If using t he float p an bef ore starting the float ing operati on, be sure that th e
pan is correctly mounted o n the c o ncr ete f inisher blades. T he s lab will be r e ady to work for the first
floating operation when th e heel of your shoes leave a print of 2~3mm on the s urfac e of the s l ab. If
combo blades are brought to use for floating they should be flat. After the floated slab has set and
your footprint is only slightly visib le, it is ready to start the finish ing operation. The timing of all
these operations is depend ent on weather condit ions. After each operation, t he engine should be
stopped.
Never park the mac hine with the engine ru nning, es peciall y during the f loating operation when the
concrete is relatively soft. Considering the machine is heavy it should never be left running or
parked on the soft concrete in the same spot, this will cause damage to the finished floor
tolerances.
Finishing Operation
After the floating operation, the first thing to do is to remove the float pan (if used) from the
concrete finisher blades. Clean the blades, spider plate and protection ring of cement/concrete

paste collected during the floating operation. Increase the blade pitch up to 10mm for the first
finishing operation and then continue to increase the pitch on the following finishing operations.
Continue the finishing passes until you obtained the desired finished floor surface. The time
required between eac h finishing pas s is dependent o n the weather cond itions, cement and water
content of the concrete. If s ome areas of the concr ete set harden too fast, you may apply a small
amount of water with a brush to help achieve a finish. Be careful when running the concrete
finisher on areas where water has be en applied b ecause the machine will tend to s kate awa y. Be
sure to maintain control of the concrete finisher at all times.
Pitch Adjustment
The pitch control knob or the optional blade pitch le ver is in easy reach of the operator. The pitc h
adjustment has a limited pitch variatio n. Rotate the pitc h control knob clock wise to tilt the blades
and counterclockwise to flatten the angle of the blades. Adjustment is based on the desired
performance for the s pecif i c j ob app licat io n. With the blade p itch lever , blade pitch can be adj us ted
by depressing the spri ng-loaded button in the adjustment lever and m ovin g th e l e ver to the des ir ed
pitch.
Spider Plate
By experience, we know that 2 major problems with the concrete finisher’s arms are lack of
lubrication a nd bent ar ms due to the machine being dr opped. Gr easing should b e carried o ut on a
weekly basis using the grease nipple provided (Figure 3). If an arm becomes jammed, this is
probably due to the arm being bent and will require replacement.
Figure 3 - Lubrication

Concrete Finisher Ma nual (Version 1)
Service and Maintenance
Maintenance
The ESI concret e finisher is designed to give man y years of trouble-free operation. It is, however,
important that the simple regular maintenance listed in this section is carried out. It is
recommended that an app roved ESI dealer carr y out all major maintenance and repairs. A lways
use genuine ESI replacem ent parts, the use of non-genuine ESI parts may void your warranty.
Before any maintenance is carried out on the machine, switch of f the engine and disconnect th e
spark plug. Always set the machine on level ground to ensure any fluid levels will be correctly
read. Only use recommended oils.
Running In Period
When the concrete fin isher is used for the ver y first time the engine oil m ust be changed af ter the
initial running in period. (See engine manual for full details).
Machine Cleaning
Clean the machine after it has been used to prevent the collection of hardened cement. The
blades can usually be cl eaned with a high-pressure hose and water while the conc rete is still wet.
Hard cement/concrete is v ery difficult to remove. Immediately replac e any labels/stickers should
you notice that they are worn, missing, or damaged.
Changing Blades
Be sure the spark plug is disconnected before changing the blades. Make sure the machine is on a
flat surface; adjust the pitch control so that the blades are flat on the surface.
Remove bolts and lock washers on each concrete finisher arm and remove the blades. Before
fitting new blades, clean all cement/concrete from bottom and side of the concret e finisher. Be sure
the conc rete finish er’s edge of the blade is be hind the concrete f inisher arm. Ins tall bolts an d lock
washers on each of the concrete finisher arms and fasten them.
Before carrying out a ny maintenance on this m achine, ensure the engine has
been switched off . The engine should als o be allowed to coo l as parts of the
engine become hot during use.
Be careful when replacing old blades with new blades. Due to the way the
blades wear, the old blades become very sharp and can cut easily. Wear heavy
duty gloves to avoid injury. BLADES MUST BE REPLACED AS A SET!!!

Drive Belt
Remove the belt guard then check the belt tension by placing light finger pressure on the top of the
belt, as near central between the engine drive and gearbox pulley. The belt should deflect by
between 10mm ~ 15mm. If the belt tension requires adjustment, loosen the four engine mount
bolts enough to allo w the engine to be moved. Adjus t the engine’s p osition by turnin g the tension
bolt clockwise to increase belt tension, anti-c lockwise to decr ease. Once set, ret ighten the engine
mount bolts and check the belt tensi on a second t ime. Fina lly, replace t he belt gu ard ensuri ng it is
correctly and securely fitted.
Routine maintenance Daily
After first
4 hrs /
weekly
First
month /
20 hours
Every 3
months /
Every 6
months /
100 hrs
Air Filter
Check condition
•
•
Clean/Replace
•
Engine Oil
Check level
•
Change
• •
Centri-safety
Switch
Check
•
Belt Tension Check
•
Spark Plug Check/Clean
•
Oil/Fuel Type & Quantity
Oil Type
Oil Quantity
(litres) [qt]
Fuel Type
Fuel
Capacity
(litres) [qt]
GX100
SAE
10W-30
0.4 [.4]
Unleaded
Petrol /
Gasoline
0.77 [.8]
GX160 0.6 2.5 [2.6]
Gearbox
EP90
90 Weight
EWT90
(0.35) [.37]
EWT120
(0.6) [.6]
N/A
Note:
• Check the gearbox oil at regular intervals and top-up when necessary. Make sure the oil is at
the centre of the sight glass.
• Grease Spider Arm Assembly prior to storage and at regular intervals.

Concrete Finisher Ma nual (Version 1)
Trouble Shooting
Problems Possible Causes Countermeasures
Engine stops suddenly
or does not run.
a. No fuel.
b. Engine is switched off.
c. Spark plug is fouled.
d. Engine is cold.
e. Engine is flooded.
a. Open fuel cap, fill fuel tank.
b. Switch engine on.
c. Clean & reset plug gap.
d. Close choke.
e. Open choke, fully open throttle,
pull recoil starter until engine
fires.
Centri-safety switch wire
disconnected.
Reconnect wire.
Concrete finisher is
powerless or unstable.
a. Insufficient oil in gearbox.
b. Rotation speed of engine is
too slow.
c. Speed output of engine is
too slow.
d. Too much cement/concrete
accumulated on concrete
finisher.
e. V-belt is loose.
a. Add oil to the recommended
level.
b. Keep speed high.
c. Clean air filter.
d. Remove cement/concrete on
concrete finisher.
e. Retighten V-belt.
Machine
engine runs but
machine does not.
a. Presence of water in the
clutch.
b. Speed output of engine is
slow.
c. Engine is overloaded.
a. Dismantle and dry clutch.
b. Clean air filter. (Refer to Engine
User Manual)
c. Check all parts like gears and
springs.
Leaving swirls in
concrete, rolling
concrete, bouncing.
Main shaft
When the machine has a rolling
motion, check the main shaft of the
gearbox.
Spider plate
Check spider plate for bent
concrete finisher arms. If one is
bent, replace it.
Blades
a. Check the adjustment on
concrete finisher arms at
adjustment lever, and ensure
all concrete finisher arms are
adjusted equally.
b. Blades should be of the same
measurement/dimension and
designed to fit the machine.
c. Excessive l y worn blades
should not be used.

Technical Data
MODEL EWT90 EWT120
DIMENSION (LxWxH) – mm (in)
76.5 x 39.1 x 44.1
(1,944 x 992 x 1,120)
80.8 x 47.2 x 44.7
(2,053 x 1,200 x 1,135)
GUARD RING DIAMETER - in (mm) 39.1 (992) 47.2 (1,200)
OPERATING WEIGHT - lb (kg) 170 (77) 209 (95)
HANDLE TYPE STRAIGHT STRAIGHT
GEARBOX HEAVY-DUTY HEAVY-DUTY
MAX. BLADE PITCH ANGLE - ° 15 15
NO. OF BLADES 4 4
BLADE OPERATING SPEED - rpm 50 – 150 50 – 150
ENGINE HONDA GX160 HONDA GX270
ENGINE TYPE 4-STROKE GASOLINE 4-STROKE GASOLINE
MAX. POWER OUTPUT - kW (hp) GX160 @ 3.6 (4.8) GX270 @ 6 (8)

Concrete Finisher Ma nual (Version 1)
Transportation and Storage
• For long-term storage, em pty the fuel in the car buretor b y running the engine with the fuel tap
closed.
• The chemical composition of the fuel will deteriorate after prolonged storage. When the
machine needs to be stor ed for a long time, remove all the fue l from the fuel tank and the
water from the water tank . Also remove the fuel from the floa t chamber of the carburetor b y
draining the fuel out from the drain plug.
• Wash away concrete accumulated o n the concrete finisher. Clean the engine m ounting plate.
Apply a light coat of oil on arbor shaft, blade reta ining cap and backing pla te to prevent rust
formation. Cover the machine and store it in a dry place.
• Where applicable, always use the lifting hook for hoisting purposes. Use proper hoisting
equipment and techniques.
• Be certain the area surrounding the machine is clear of personnel before hoisting.
• The operation handle can be disengaged for easy stor age. Lo os en the bolts on the connec ti ng
point on the base plate and release the operation handle from the slot.
Extreme care must be taken when transporting, loading or unloading this
machine.

Warranty
Your new ESI concrete fin isher is warranted to the or iginal purchas er for a period of o ne-year ( 12
months) from the original date of purchase.
The ESI warranty covers defects in design, materials and workmanship.
The following are not covered under the ESI warranty:
1. Damage caused b y abus e, m isus e, dropp ing or other sim ilar dam age caus ed by or as a resu lt
of failure to follow assembly, operation or user maintenance instructions.
2. Alterations, additions or repairs carried out by persons other than ESI or their recognized
agents.
3. Transportation or shipment costs to and from ESI or their recognized agents, for repair or
assessment against a warranty claim, on any machine.
4. Materials and/or labour costs to renew, repair or replace components due to fair wear and
tear.
5. The engine, air f ilter and the engine spark plug. The engine will be warranted by the engine
manufacturer. Please contact the nearest engine dealer for engine warranty
Liability
ESI decl ines any liability for possible damages to pe rsons and/or things, which might arise f rom
improper or wrong use of the machine or non-observance of the operating instructions in this
manual.
ESI and/or their recognized agents, directors, employees or insurers will not be held liable for
consequential or other damages, losses or expenses in connection with or by reason of or the
inability to use the machine for any purpose.
Warranty Claims
All warranty claims should firstly be directed to t he local dealer, either by telephone, by fax, b y
email, or in writing.
USE ONLY GENUINE ESI PAR TS AND ACCESSORIES!
For your own safety, the safety of others and the life of the machine.

EQUIPMENT SYNERGY INTERNATIONAL
7422 Rock Hollow Lane
(PO Box 1902)
Midland Michigan 48642 (48641)
USA
1-
866-648-7101
service@theESIchoice.com
www.theESIchoice.com