ESI EWT90 User manual

Operator’s Manual
Concrete Finishers Range
Concrete Finisher
EWT90
EWT120
Manual Version 1

2
Concrete Finisher Proposition Warning

Concrete Finisher Manual (Version 1)
3
PRODUCT TYPE……
MODEL……………….
SERIAL No…………..
DATE OF
MANUFACTURE…….
WEIGHT………………
TYPE DE PRODUIT….
MODELE……………...
Nº DE SERIE………….
DATE DE
FABRICATION……….
POIDS…………………
TIPO DE PRODUCTO..
MODELO……………...
Nº DE SERIE………….
FECHA DE
FABRICACIÓN……….
PESO…………………
TIPO DE PRODUCTO..
MODELO……………...
Nº DE SÉRIE………….
DATA DE
FABRIC……………….
PESO……………….…
Signed by:
Quality Manager - On behalf of ESI
Anita Tan
EC DECLARATION OF CONFORMITY / DECLARATION CE DE
CONFORMITE / DECLARACIÓN DE CONFORMIDAD CE / DECLARAÇÃO
CE DE CONFORMIDADE
We, ESI, 101 Gannaway Drive Suite #3 PO Box 997 Jamestown, NC 27282 USA,hereby certify that if the product described
within this certificate is bought from an authorized ESI dealer within the EEA, it conforms to the following directives: Machinery
Directive 2006/42/EC, Electromagnetic Compatibility Directive 2004/108/EC (as amended by 92/31/EEC &
93/68 EEC). The
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 applicable. 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 sein de la EEA, celui-ci est conforme aux norms
CEE ci-après: Norme de la machine 2006/42/CE, Norme compatible pour l’électromagnétisme
2004/108/CE (modifie par
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 Gannaway 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, Directiva 2004/108/CEE sobre Compatibilidad Electromagnética (según enmiendas
92/31/CEE y 93/68 CEE). El numero de vibraciones esta de acuerdo con la Directiva 2002/44/CE. Directiva sobre Bajo 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, Directiva 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 ISO 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
P
GB/US
F

4
Foreword
This manual has been written to help you operate your concrete finisher safely. It is intended
primarily for dealers and operators 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 indicates a potential hazard, which if ignored could result in
the DEATH of the operator and/or those close by.
WARNING
This CAUTION sign indicates a potential hazard, which if ignored, could result in
injuries to the operator and/or those close by, as well as damaging the machine.
CAUTION

Concrete Finisher Manual (Version 1)
5
Safety Information
For your own personal protection and for the safety of those around you, please read and ensure
you fully understand the following safety information. It is the responsibility of the operator to
ensure that he/she fully understands how to operate this equipment safely. If you are unsure about
the safe and correct use of the concrete finisher, consult your supervisor or ESI.
General Safety
•The owner of this machine must observe, and also train the user of the machine to observe,
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 Equipment (PPE) must be worn by the operator whenever the equipment
is being used.
•Cordon off the work area and keep members of the public and unauthorised 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 safely switch this machine OFF before 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; they are there for your own protection. If they
are damaged or missing, DO NOT USE THE MACHINE until the guard has 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 eliminate the possible risks arising from the use of it. However,
risks DO reside, and these residual 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.
CAUTION

6
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 immediately by using the appropriate absorbent. If fuel is spilt 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 eyes, 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 worn when using this equipment i.e. safety goggles, gloves, ear defenders,
dust mask and steel toe-capped footwear (with anti-slip soles for added protection). Wear clothing
suitable for the work you are doing.
Fuel is flammable. It may cause injury and property damage. Shut down the
engine, extinguish all open flames and do not smoke while filling the fuel tank.
Always wipe up any spilled fuel.
WARNING
The exhaust fumes produced by this machine are highly toxic and can kill! Make
sure the work area is adequately ventilated.
WARNING

Concrete Finisher Manual (Version 1)
7
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 respective materials.
Take the discarded apparatus to the
relevant recycling facilities.
Component
Material
Operator Handle
Steel
Belt Guard Glass Fiber
Blade Guard Steel
Bedplate Steel
Hand Grips
Rubber
Engine
Aluminum & Steel
Gearbox
Aluminum, Steel &
Phosphor Bronze
Spider Assembly
Cast Iron, Steel &
Phosphor Bronze
Various Parts
Steel & Aluminum

8
Machine Description
EWT90
EWT120
1. Throttle Lever
2. Pitch Control Lever
3. Cutout Switch Handle
4. Exhaust Guard
5. Air Filter
6. Fuel Tank
7. Recoil Starter
8. Blade Guard
9. Belt Guard
10. Handle Height Adjuster
11. Lifting Bar
5
4
6
7
9
8
3
10
2
1
11
1. Throttle Lever
2. Pitch Control Lever
3. Centri-safety Switch
Handle
4. Handle Height Adjuster
5. Exhaust Guard
6. Air Filter
7. Lifting Bar
8. Fuel Tank
9. Recoil Starter
10. Blade Guard
11. Belt Guard
1
9
8
6
4
7
3
2
5
11
10

Concrete Finisher Manual (Version 1)
9
Pre-Start Checks
The following pre-start inspection must be performed before the start of each work session. Please
refer to the service & maintenance section for detailed guidance. If any fault is discovered, the
concrete finisher must not be used until the fault is rectified.
1. Thoroughly inspect the machine for signs of damage. Make sure all guards are in place and
secured.
2. Check hoses, filler openings, drain plugs and any other areas for signs of leakage. Fix any
leaks before operating.
3. Check the engine oil level and top up as necessary. Use proper engine oil with the proper
viscosity (SAE 10W-30 recommended).
4. Check the engine fuel level and top up as necessary. Use clean fuel. Use of contaminated
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 Procedure
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.
CAUTION
FULL OPEN
IDLE

10
ON
OFF
1. Verify the correct blades for the job have been chosen and that they are properly 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 mechanical
parts are in proper working order.
Before Starting Gasoline Engine
1. Check the oil in the engine crankcase. Be sure to maintain the proper level per the engine
manufacturer specifications. If the oil is dirty and in need of changing, follow the Engine User
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 happens to let go or lose control of the handle, the centrifugal force
will cause the switch to move to the OFF position stopping the concrete finisher within one and a
half turns. (Figure 2)
3. The operator of the concrete finisher shall take care that nobody stays or gets into danger area
during operation.

Concrete Finisher Manual (Version 1)
11
Moving the Concrete Finisher
Get into the operator’s position behind the centre of handle with good footing and apply the throttle
slowly until desired speed is obtained. The blades of the concrete finisher spin in a clockwise
direction. All ESI concrete finisher are directed left or right by applying a slight 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 machine to strike the concrete surface to level 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 performed by using either the combination blades (furnished with the machine) or
the optional Float Pan. If using the float pan before starting the floating operation, be sure that the
pan is correctly mounted on the concrete finisher blades. The slab will be ready to work for the first
floating operation when the heel of your shoes leave a print of 2~3mm on the surface of the slab. 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 visible, it is ready to start the finishing operation. The timing of all
these operations is dependent on weather conditions. After each operation, the engine should be
stopped.
Never park the machine with the engine running, especially during the floating 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

12
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 each finishing pass is dependent on the weather conditions, cement and water
content of the concrete. If some areas of the concrete 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 been applied because the machine will tend to skate away. Be
sure to maintain control of the concrete finisher at all times.
Pitch Adjustment
The pitch control knob or the optional blade pitch lever is in easy reach of the operator. The pitch
adjustment has a limited pitch variation. Rotate the pitch control knob clockwise to tilt the blades
and counterclockwise to flatten the angle of the blades. Adjustment is based on the desired
performance for the specific job application. With the blade pitch lever, blade pitch can be adjusted
by depressing the spring-loaded button in the adjustment lever and moving the lever to the desired
pitch.
Spider Plate
By experience, we know that 2 major problems with the concrete finisher’s arms are lack of
lubrication and bent arms due to the machine being dropped. Greasing should be carried out 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
GREASE

Concrete Finisher Manual (Version 1)
13
Service and Maintenance
Maintenance
The ESI concrete finisher is designed to give many 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 approved ESI dealer carry out all major maintenance and repairs. Always
use genuine ESI replacement parts, the use of non-genuine ESI parts may void your warranty.
Before any maintenance is carried out on the machine, switch off the engine and disconnect the
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 finisher is used for the very first time the engine oil must be changed after 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 cleaned with a high-pressure hose and water while the concrete is still wet.
Hard cement/concrete is very difficult to remove. Immediately replace 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 concrete finisher. Be sure
the concrete finisher’s edge of the blade is behind the concrete finisher arm. Install bolts and lock
washers on each of the concrete finisher arms and fasten them.
Before carrying out any maintenance on this machine, ensure the engine has
been switched off. The engine should also be allowed to cool as parts of the
engine become hot during use.
CAUTION
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!!!
CAUTION

14
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 allow the engine to be moved. Adjust the engine’s position by turning the tension
bolt clockwise to increase belt tension, anti-clockwise to decrease. Once set, retighten the engine
mount bolts and check the belt tension a second time. Finally, replace the belt guard ensuring it is
correctly and securely fitted.
Routine maintenance Daily After first 4 hrs /
weekly
First
month /
20 hours
Every 3
months /
50 hrs
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 Manual (Version 1)
15
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. Excessively worn blades
should not be used.

16
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 Manual (Version 1)
17
Transportation and Storage
•For long-term storage, empty the fuel in the carburetor by 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 stored for a long time, remove all the fuel from the fuel tank and the
water from the water tank. Also remove the fuel from the float chamber of the carburetor by
draining the fuel out from the drain plug.
•Wash away concrete accumulated on the concrete finisher. Clean the engine mounting plate.
Apply a light coat of oil on arbor shaft, blade retaining cap and backing plate 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 storage. Loosen the bolts on the connecting
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.
CAUTION

18
Warranty
Your new ESI concrete finisher is warranted to the original purchaser for a period of one-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 by abuse, misuse, dropping or other similar damage caused by or as a result
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 filter 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 declines any liability for possible damages to persons and/or things, which might arise from
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 the local dealer, either by telephone, by fax, by
email, or in writing.
USE ONLY GENUINE ESI PARTS AND ACCESSORIES!
For your own safety, the safety of others and the life of the machine.

Notes

EQUIPMENT SYNERGY INTERNATIONAL
7422 Rock Hollow Lane
(PO Box 1902)
Midland Michigan 48642 (48641)
USA
1-336-454-2665
1-866-648-7101
servic[email protected] www.theESIchoice.com