Wacker Neuson Trowel CT 24-4A Operator's Manual
Operator’s Manual
Trowel
CT 24-4A
0171799en 005 1010
0171799EN
Copyright
notice
© Copyright 2010 by Wacker Neuson Corporation.
All rights, including copying and distribution rights, are reserved.
This publication may be photocopied by the original purchaser of the machine. Any
other type of reproduction is prohibited without express written permission from
Wacker Neuson Corporation.
Any type of reproduction or distribution not authorized by W acker Neuson Corp oration
represents an infringement of valid copyrights. Violators will be prosecuted.
T ra d emarks
Manufacturer
All trademarks referenced in this manual are the property of their respective owners.
Wacker Neuson Corporation
N92W15000 Anthony Avenue
Menomonee Falls, WI 53051 U.S.A.
Tel: (262) 255-0500 · Fax: (262) 255-0550 · Tel: (800) 770-0957
www.wackerneuson.com
Tra n slated
instructions
This Operator’s Manual presents the original instructions. The original language of this
Operator’s Manual is American English.
CT 24-4A Foreword
Foreword
Machines
covered in
this manual
Machine Item Number
CT 24-24A 0620105, 0620849
Machine
documentation
Expectations
for
information in
this manual
Manufacturer’s
approval
Keep a copy of the Operator’s Manual with the machine at all times.
Use the separate Parts Book supplied with the machine to order replacement
parts.
If you are missing either of these documents, please contact Wacker Neuson
Corporation to order a replacement or visit www.wackerneuson.com.
When ordering parts or requesting service information, be prepared to provide
the machine model number, item number, revision number, and serial number.
This manual provides information and procedures to safely operate and
maintain the above Wacker Neuson model(s). For your own safety and to
reduce the risk of injury , carefully rea d, understand, and obse rve all instructions
described in this manual.
Wacker Neuson Corporation expressly reserves the right to make technical
modifications, even without notice, which improve the performance or safety
standards of its machines.
The information contained in this manual is based on machines manufactured
up until the time of publication. Wacker Neuson Corporation reserves the right
to change any portion of this information without notice.
This manual contains references to approved parts, attachments, and modifications. The following definitions apply:
Approved parts or attachments are those either manufactured or provided by
Wacker Neuson.
Approved modifications are those performed by an authorized Wacker
Neuson service center according to written instructions published by Wacker
Neuson.
Unapproved parts, attachments, and modifications are those that do not
meet the approved criteria.
Unapproved parts, attachments, or modifications may have the following consequences:
Serious injury hazards to the operator and persons in the work area
Permanent damage to the machine which will not be covered under warranty
Contact your Wacker Neuson dealer immediately if you have questions about
approved or unapproved parts, attachments, or modifications.
CALIFORNIA
Proposition
65 Warning
wc_tx001519gb.fm 3
Engine exhaust, some of its constituents, and certain vehicle components, contain
or emit chemicals known to the State of California to cause cancer and birth
defects or other reproductive harm.
Foreword CT 24-4A
Laws
pertaining to
spark
arresters
NOTICE: State Health Safety Codes and Public Resources Codes specify that in
certain locations spark arresters be used on internal combustion engines that use
hydrocarbon fuels. A spark arrester is a device designed to prevent accidental discharge of sparks or flames from the engine exhaust. Spark arresters are qualified
and rated by the United States Forest Service for this purpose. In order to comply
with local laws regarding spark arresters, consult the engine distributor or the local
Health and Safety Administrator.
4 wc_tx001519gb.fm
CT 24-4A Table of Contents
Foreword 3
1 Safety Information 7
1.1 Signal Words found in this Manual ....................................................... 7
1.2 Machine Description and Intended Use ............................................... 8
1.3 Operating Safety .................................................................................. 9
1.4 Operator Safety while using Internal Combustion Engines ................ 11
1.5 Service Safety .................................................................................... 12
2 Labels 14
2.1 Label Locations .................................................................................. 14
2.2 Label Meanings .................................................................................. 15
3 Lifting and Transporting 18
3.1 Lifting the Machine ............................................................................. 18
3.2 Transporting ....................................................................................... 19
4 Operation 20
4.1 Preparing for First Use ....................................................................... 20
4.2 New Machine Set-up .......................................................................... 20
4.3 Recommended Fuel ........................................................................... 20
4.4 Installing Blades ................................................................................. 21
4.5 Unfolding Handle ................................................................................ 22
4.6 Controls .............................................................................................. 23
4.7 Operator Present Lever ...................................................................... 23
4.8 Before Starting ................................................................................... 24
4.9 To Start ............................................................................................... 24
4.10 To Stop ............................................................................................... 25
4.11 Position of the Operator ..................................................................... 26
4.12 Operation ............................................................................................ 26
4.13 Emegency Shutdown Procedure ........................................................ 27
4.14 Pitch Adjustment ................................................................................ 28
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Table of Contents CT 24-4A
5 Maintenance 29
5.1 Periodic Maintenance Schedule ..........................................................29
5.2 Engine Oil ............................................................................................30
5.3 Air Cleaner ..........................................................................................31
5.4 Spark Plug ...........................................................................................32
5.5 Cleaning Sediment Cup ......................................................................33
5.6 Adjusting Idle Speed ...........................................................................34
5.7 Carburetor Adjustment ........................................................................35
5.8 Belt Replacement ................................................................................36
5.9 Trowel Lubrication ...............................................................................37
5.10 Storage ................................................................................................38
6 Troubleshooting 39
6.1 Basic Troubleshooting .........................................................................39
7 Technical Data 40
7.1 Dimensions and Weight ......................................................................40
7.2 Engine .................................................................................................41
7.3 Trowel ..................................................................................................42
7.4 Sound and Vibration Data ...................................................................43
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CT24-4A Safety Information
1 Safety Information
1.1 Signal Words found in this Manual
This manual contains DANGER, WARNING, CAUTION, NOTICE, and
NOTE signal words which must be followed to reduce the possibility
of personal injury, damage to the equipment, or improper service.
This is the safety alert symbol. It is used to alert you to potential personal hazards.
f Obey all safety messages that follow this symbol.
DANGER
DANGER indicates a hazardous situation which, if not avoided, will result in death
or serious injury.
f To avoid death or serious injury from this type of hazard, obey all safety mes-
sages that follow this signal word.
WARNING
WARNING indicates a hazardous situation which, if not avoided, could result in
death or serious injury.
f To avoid possible death or serious injury from this type of hazard, obey all safety
messages that follow this signal word.
CAUTION
CAUTION indicates a hazardous situation which, if not avoided, could result in
minor or moderate injury.
f To avoid possible minor or moderate injury from this type of hazard, obey all
safety messages that follow this signal word.
NOTICE: Used without the safety alert symbol, NOTICE indicates a
situation which, if not avoided, could result in property damage.
Note: A Note contains additional information important to a procedure.
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Safety Information CT24-4A
1.2 Machine Description and Intended Use
This machine is a walk-behind concrete finishing trowel. The Wacker
Neuson Walk-Behind Trowel consists of a frame onto which are
mounted a gasoline engine, a fuel tank, a gearbox, and a control
handle. A set of four metal blades is connected to the gearbox and is
surrounded by a ring guard. The engine rotates the blades through
the gearbox and clutch mechanism. The rotating blades ride on the
surface of curing concrete, creating a smooth finish. The operator
walks behind the machine and uses the handle to control speed and
direction of the machine.
This machine is intended to be used for floating and burnishing curing
concrete.
This machine has been designed and built strictly for the intended use
described above. Using the machine for any other purpose could
permanently damage the machine or seriously injure the operator or
other persons in the area. Machine damage caused by misuse is not
covered under warranty.
The following are some examples of misuse:
• Using the machine as a ladder, support, or work surface
• Using the machine to carry or transport passengers or equipment
• Using the machine to finish inappropriate materials such as
slurries, sealers, or epoxy finishes
• Operating the machine outside of factory specifications
• Operating the machine in a manner inconsistent with all warnings
found on the machine and in the Operator’s Manual
This machine has been designed and built in accordance with the
latest global safety standards. It has been carefully engineered to
eliminate hazards as far as practicable and to increase operator
safety through protective guards and labeling. However, some risks
may remain even after protective measures have been taken. They
are called residual risks. On this machine, they may include exposure
to:
• Heat, noise, exhaust, and carbon monoxide from the engine
• Chemical burns from curing concrete
• Fire hazards from improper refueling techniques
• Fuel and its fumes, fuel spillage from improper lifting technique
• Personal injury from improper lifting techniques or operating
techniques
• Cutting hazards from sharp or worn blades
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CT24-4A Safety Information
To protect yourself and others, make sure you thoroughly read and
understand the safety information presented in this manual before
operating the machine.
1.3 Operating Safety
Familiarity and proper training are required for the safe operation of the
machine. Machines operated improperly or by untrained personnel
can be hazardous. Read the operating instructions contained in this
WARNING
Operator qualifications
manual and the engine manual, and familiarize yourself with the
location and proper use of all controls. Inexperienced operators should
receive instruction from someone familiar with the machine before
being allowed to operate it.
Only trained personnel are permitted to start, operate, and shut down
the machine. They also must meet the following qualifications:
• have received instruction on how to properly use the machine
• are familiar with required safety devices
The machine must not be accessed or operated by:
•children
• people impaired by alcohol or drugs
1.3.1 Operator training
Before operating the machine:
• Read and understand the operating instructions contained in all
manuals delivered with the machine.
• Familiarize yourself with the location and proper use of all
controls and safety devices.
• Contact Wacker Neuson Corporation for additional training if
necessary.
When operating this machine:
• Do not allow improperly trained people to operate the machine.
People operating the machine must be familiar with the potential
risks and hazards associated with it.
Personal Protective Equipment (PPE)
Wear the following Personal Protective Equipment (PPE) while
operating this machine:
• Close-fitting work clothes that do not hinder movement
• Safety glasses with side shields
• Hearing protection
wc_si000504gb.fm 9
Safety Information CT24-4A
• Safety-toed footwear
1.3.2 Do not allow anyone to operate this equipment without proper training.
People operating this equipment must be familiar with the risks and
hazards associated with it.
1.3.3 Do not touch the engine or muffler while the engine is on or
immediately after it has been turned off. These areas get hot and may
cause burns.
1.3.4 Do not operate the machine with unapproved accessories or
attachments.
1.3.5 Never leave the machine running unattended.
1.3.6 NEVER operate the machine with the beltguard missing. Exposed
drive belt and pulleys create potentially dangerous hazards that can
cause serious injuries.
1.3.7 Never operate this machine in applications for which it is not intended.
1.3.8 NEVER use the trowel around pop-ups in the concrete that are lower
than the lowest ring on the ring guard.
1.3.9 NEVER lift the machine solely by the handle. The component may fail,
causing the machine to fall, possibly injuring bystanders.
1.3.10 Always wear protective clothing appropriate to the job site when
operating the machine.
1.3.11 ALWAYS wear hearing and eye protection when operating this
machine.
1.3.12 ALWAYS remain aware of moving parts and keep hands, feet, and
loose clothing away from the moving parts of the machine.
1.3.13 Read, understand, and follow procedures in the Operator’s Manual
before attempting to operate the machine.
1.3.14 Store the machine properly when it is not being used. The machine
should be stored in a clean, dry location out of the reach of children.
1.3.15 Close fuel valve on engines equipped with one when machine is not
being operated.
1.3.16 Always operate machine with all safety devices and guards in place
and in working order. Do not modify or defeat safety devices. Do not
operate machine if any safety devices or guards are missing or
inoperative.
1.3.17 Be sure operator is familiar with proper safety precautions and
operation techniques before using machine.
1.3.18 ALWAYS test the function of the engine control module before
operating the trowel. DO NOT operate the trowel if the engine control
module is not functioning properly.
1.3.19 Do not use a cellphone or send text messages while operating this
machine.
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CT24-4A Safety Information
1.3.20 Do not transport the machine while it is running.
1.3.21 Do not tip the machine for cleaning or for any other reason.
1.4 Operator Safety while using Internal Combustion Engines
WARNING
Internal combustion engines present special hazards during operation and fueling.
Failure to follow the warnings and safety standards could result in severe injury or death.
f Read and follow the warning instructions in the engine owner’s manual and the
safety guidelines below.
DANGER
Exhaust gas from the engine contains carbon monoxide, a deadly poison.
Exposure to carbon monoxide can kill you in minutes.
f NEVER operate the machine inside an enclosed area, such as a tunnel, unless
adequate ventilation is provided through such items as exhaust fans or hoses.
Operating safety
When running the engine:
• Keep the area around exhaust pipe free of flammable materials.
• Check the fuel lines and the fuel tank for leaks and cracks before
starting the engine. Do not run the machine if fuel leaks are
present or the fuel lines are loose.
When running the engine:
• Do not smoke while operating the machine.
• Do not run the engine near sparks or open flames.
• Do not touch the engine or muffler while the engine is running or
immediately after it has been turned off.
• Do not operate a machine when its fuel cap is loose or missing.
• Do not start the engine if fuel has spilled or a fuel odor is present.
Move the machine away from the spill and wipe the machine dry
before starting.
Refueling safety
When refueling the engine:
• Clean up any spilled fuel immediately.
• Refill the fuel tank in a well-ventilated area.
• Replace the fuel tank cap after refueling.
• Do not smoke.
wc_si000504gb.fm 11
Safety Information CT24-4A
• Do not refuel a hot or running engine.
• Do not refuel the engine near sparks or open flames.
• Do not refuel if the machine is positioned in a truck fitted with a
plastic bed liner. Static electricity can ignite the fuel or fuel vapors.
1.5 Service Safety
A poorly maintained machine can become a safety hazard! In order
for the machine to operate safely and properly over a long period of
time, periodic maintenance and occasional repairs are necessary.
WARNING
Personal Protective Equipment (PPE)
Wear the following Personal Protective Equipment (PPE) while
servicing or maintaining this machine:
• Close-fitting work clothes that do not hinder movement
• Safety glasses with side shields
• Hearing protection
• Safety-toed footwear
In addition, before servicing or maintaining the machine:
• Tie back long hair.
• Remove all jewelry (including rings).
Service training
Before servicing or maintaining the machine:
• Read and understand the instructions contained in all manuals
delivered with the machine.
• Familiarize yourself with the location and proper use of all
controls and safety devices.
• Only trained personnel shall troubleshoot or repair problems
occurring with the machine.
• Contact Wacker Neuson Corporation for additional training if
necessary.
When servicing or maintaining this machine:
• Do not allow improperly trained people to service or maintain the
machine. Personnel servicing or maintaining the machine must
be familiar with the associated potential risks and hazards.
1.5.1 Do not attempt to clean or service the machine while it is running.
Rotating parts can cause severe injury.
12 wc_si000504gb.fm
CT24-4A Safety Information
1.5.2 Do not crank a flooded engine with the spark plug removed on
gasoline-powered engines. Fuel trapped in the cylinder will squirt out
the spark plug opening.
1.5.3 Do not test for spark on gasoline-powered engines if the engine is
flooded or the smell of gasoline is present. A stray spark could ignite
the fumes.
1.5.4 Do not use gasoline or other types of fuels or flammable solvents to
clean parts, especially in enclosed areas. Fumes from fuels and
solvents can become explosive.
1.5.5 DO NOT remove blades while the machine is hanging overhead.
1.5.6 ALWAYS support the machine securely before changing blades.
1.5.7 Keep the area around the muffler free of debris such as leaves, paper,
cartons, etc. A hot muffler could ignite the debris and start a fire.
1.5.8 When replacement parts are required for this machine, use only
Wacker Neuson replacement parts or those parts equivalent to the
original in all types of specifications, such as physical dimensions,
type, strength, and material.
1.5.9 Disconnect the spark plug on machines equipped with gasoline
engines, before servicing, to avoid accidental start-up.
1.5.10 Keep the machine clean and labels legible. Replace all missing and
hard-to-read labels. Labels provide important operating instructions
and warn of dangers and hazards.
1.5.11 ALWAYS handle blades carefully. The blades can develop sharp
edges which can cause serious cuts.
wc_si000504gb.fm 13
Labels CT24-4A
2Labels
2.1 Label Locations
14 wc_si000505gb.fm
CT24-4A Labels
2.2 Label Meanings
Label Meaning
A
B
DANGER!
Asphyxiation hazard.
Engines emit carbon monoxide.
Do not run the machine indoors or in an enclosed
area unless adequate ventilation, through such items
as exhaust fans or hoses, is provided.
Read the Operator’s Manual. No sparks, flames, or
burning objects near the machine. Stop the engine
before refueling.
WARNING!
Hot surface!
C
D
wc_si000505gb.fm 15
WARNING!
Hand injury if caught in moving belt.
Always replace beltguard.
WARNING!
Always wear hearing and eye protection when operating
this machine.
Labels CT24-4A
Label Meaning
E
F
G
WARNING!
Cutting hazard. Always replace blade guard!
Variable speed throttle
CAUTION!
Read and understand the supplied Operator’s Manual
before operating this machine. Failure to do so
increases the risk of injury to yourself and others.
H
NOTICE
Lifting point.
A nameplate listing the model number, item number,
revision number, and serial number is attached to each
unit. Please record the information found on this plate
so it will be available should the nameplate become lost
or damaged. When ordering parts or requesting service
information, you will always be asked to specify the
model number, item number, revision number, and
serial number of the unit.
16 wc_si000505gb.fm
CT24-4A Labels
3
2
1
7
6
5
4
3
2
1
172847
Label Meaning
This machine may be covered by one or more patents.
Label Meaning
J
111
172847
2
3
4
5
To start the machine:
1. Open the fuel flow valve.
2. Close the choke.
3. Push or turn engine switch to ON position.
4. Place throttle in the IDLE position.
5. Engage operator present lever.
6. Pull the rewind starter.
7. Open the choke.
To stop the machine:
1. Release operator present lever.
6
7
1
2
3
2. Push or turn engine switch to OFF position.
3. Close the fuel flow valve.
wc_si000505gb.fm 17
Lifting and Transporting CT 24-230E
3 Lifting and Transporting
3.1 Lifting the Machine
See Graphic: wc_gr004390
NEVER lift the machine solely by the handle. The component may fail,
causing the machine to fall, possibly injuring bystanders.
WARNING
See Technical Data for the weight of the machine.
To lift the machine manually:
3.1.1 Stop machine.
3.1.2 Obtain a partner and plan the lift.
3.1.3 Balance the weight between the partners and lift the machine by the
guard ring (a).
To reduce risk of back injury while lifting, keep your feet flat on ground
and shoulder width apart. Keep your head up and back straight.
WARNING
To lift the machine mechanically:
3.1.4 Stop machine.
3.1.5 See Dimensions and Weight for weight of machine and be sure that
lifting device(s) can safely lift the weight.
3.1.6 Attach hook, harness, or cable to the lifting bracket (b) on machine as
shown and lift as desired.
Do not lift the trowel overhead with a float pan attached, as the pan
could fall off and strike personnel working in the vicinity.
WARNING
b
a
wc_gr004390
18 wc_tx001520gb.fm
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