Operator’s Manual Trowel CT24-4A Type CT24-4A Document 5000184477 Date 0917 Version 12 Language EN 5 0 0 0 1 8 4 4 7 7
Copyright notice © Copyright 2017 by Wacker Neuson Production Americas LLC 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 Production Americas LLC. Any type of reproduction or distribution not authorized by Wacker Neuson Production Americas LLC represents an infringement of valid copyrights.
CT 24-4A Foreword Foreword SAVE THESE INSTRUCTIONS—This manual contains important instructions for the machine models below. These instructions have been written expressly by Wacker Neuson Production Americas LLC and must be followed during installation, operation, and maintenance of the machines. Machine Item Number CT 24-24A 0620105, 0620849 wc_gr010143 Machine identification A nameplate listing the model number, item number, revision number, and serial number is attached to this machine.
Foreword Expectations for information in this manual CT 24-4A 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 read, understand, and observe all instructions described in this manual. Wacker Neuson expressly reserves the right to make technical modifications, even without notice, which improve the performance or safety standards of its machines.
EC Declaration of Conformity Manufacturer Wacker Neuson Production Americas LLC, N92W15000 Anthony Avenue, Menomonee Falls, Wisconsin 53051, USA Product Product CT24-4A Product category Trowel Product function To smooth and finish semi-cured concrete Item number 5000620849 Directives and Standards We hereby declare that this product meets and complies with the relevant regulations and requirements of the following directives and standards: 2006/42/EC, 2014/30/EU, EN12649 Authorized Person for Techni
CT 24-4A 1 Foreword 3 EC Declaration of Conformity 5 Safety Information 9 1.1 1.2 1.3 1.4 1.5 2 16 Label Locations .................................................................................. 16 Label Meanings .................................................................................. 17 Lifting and Transporting 3.1 3.2 4 Signal Words Used in this Manual ....................................................... 9 Machine Description and Intended Use ..................................
Table of Contents 5 CT 24-4A Maintenance 5.1 5.2 5.3 5.4 5.5 5.6 5.7 5.8 5.9 5.10 5.11 33 Maintaining the Emission Control System ...........................................33 Periodic Maintenance Schedule ..........................................................33 Engine Oil ............................................................................................34 Servicing the Air Cleaner .....................................................................35 Spark Plug ..........................
CT 24-4A 1 1.1 Safety Information Safety Information Signal Words Used 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.
Safety Information 1.2 CT 24-4A 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.
CT 24-4A 1.3 Safety Information Safety Guidelines for Operating the Machine 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 for additional training if necessary. When operating this machine: Do not allow improperly trained people to operate the machine.
Safety Information Safety devices, controls, and attachments CT 24-4A Only operate the machine when: All safety devices and guards are in place and in working order. All controls operate correctly. The machine is set up correctly according to the instructions in the Operator’s Manual. The machine is clean. The machine’s labels are legible. To ensure safe operation of the machine: Do not operate the machine if any safety devices or guards are missing or inoperative.
CT 24-4A 1.4 Safety Information Service Safety 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 for additional training if necessary.
Safety Information Personal Protective Equipment (PPE) CT 24-4A 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).
CT 24-4A 1.5 Safety Information 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.
Labels 2 2.1 CT 24-4A Labels Label Locations 16 wc_si000742gb.
CT 24-4A 2.2 Labels Label Meanings A 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. B WARNING Hot surface C WARNING Hand injury if caught in moving belt. Always replace beltguard.
Labels CT 24-4A E WARNING Cutting hazard. Always replace blade guard. F Variable speed throttle G 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 178709 — This machine may be covered by one or more patents. 18 wc_si000742gb.
CT 24-4A Labels J 1 2 3 4 5 172847 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. 2. Push or turn engine switch to OFF position. 3. Close the fuel flow valve. wc_si000742gb.
Lifting and Transporting 3 3.1 CT 24-4A Lifting and Transporting Lifting the Machine 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: 1. Stop machine. 2. Obtain a partner and plan the lift. 3. Balance the weight between the partners and lift the machine by the guard ring (a).
CT 24-4A 3.2 Lifting and Transporting Transporting the Machine Requirements Procedure Transport vehicle capable of handling the weight of the trowel Suitable ropes or chains Follow the procedure below to tie down and transport the machine. 1. Lift the trowel onto the transport vehicle. 2. Position the handle so that it does not protrude outside the footprint of the transport vehicle. 3. Connect the ropes/chains to the ring guard of the trowel as follows. a.
Operation 4 4.1 CT 24-4A Operation Preparing the Machine for First Use 1. Make sure all loose packaging materials have been removed from the machine. 2. Check the machine and its components for damage. If there is visible damage, do not operate the machine! Contact your Wacker Neuson dealer immediately for assistance. 3. Take inventory of all items included with the machine and verify that all loose components and fasteners are accounted for. 4. Attach component parts not already attached. 5.
CT 24-4A 4.3 Operation Recommended Fuel The engine requires regular grade unleaded gasoline. Use only fresh, clean gasoline. Gasoline containing water or dirt will damage the fuel system. Consult the engine owner’s manual for complete fuel specifications. Use of oxygenated fuels Some conventional gasolines are blended with alcohol. These gasolines are collectively referred to as oxygenated fuels. If you use an oxygenated fuel, be sure it is unleaded and meets the minimum octane rating requirement.
Operation 4.4 CT 24-4A Refueling the Machine Requirements Procedure Machine shut down Engine cool Machine/fuel tank level with the ground Fresh, clean fuel supply Perform the procedure below to refuel the machine. WARNING Fire hazard. Fuel and its vapors are extremely flammable. Burning fuel can cause severe burns. f Keep all sources of ignition away from the machine while refueling. f Do not refuel if the machine is positioned in a truck fitted with a plastic bed liner.
CT 24-4A 4.5 Operation Installing Blades There are two types of blades available for the trowels. Float pans are large “pizza pan” style blades, which hook on over finish blades. Float blades are used in the earliest stages of work, and are not pitched. Finish blades are used in the final stages of working, and are progressively pitched to burnish the concrete. Note: Trowel blades must NOT be interchanged, i.e., do NOT put larger diameter blades on a smaller diameter trowel. 1.
Operation 4.6 CT 24-4A Unfolding Handle On new machines the pipe handle comes folded with the following components attached: Twist pitch control (a), Operator Present Lever (b), throttle lever (c), hinge pin (d), and adjustable lever (e). To unfold and secure the pipe handle assembly: 1. While holding the hinge pin, unscrew and remove the adjustable lever and metal washer. 2. Remove the hinge pin. 3. Straighten the pipe handle and re-insert the hinge pin. 4.
CT 24-4A 4.7 Operation Controls Ref. Description Ref. Description a Twist pitch control d Hinge pin b Operator Present Lever e Adjustable lever c Throttle lever — — c b d a e wc_gr004384 4.8 Operator Present Lever When the Operator Present Lever (b) is released, the engine will shut off. WARNING wc_tx003232gb.fm Watch for spinning blades! Even after the engine has shut off, the trowel blades will continue to rotate.
Operation 4.9 CT 24-4A Before Starting Before starting trowel, check the following: oil level in engine oil level in gearbox fuel level condition of air filter condition of fuel lines condition of trowel arms and blades condition of ring guard label descriptions adjustable lever is tight 4.10 Starting 1. Open fuel valve by moving lever to the right (g1). Note: If engine is cold, move choke lever to closed position (i1). If engine is hot, set choke to open position (i2). 2.
CT 24-4A Operation c b d a e wc_gr004384 h2 i2 g1 h1 i1 g2 j wc_gr001098 4.11 Stopping 1. Reduce engine RPM to idle by moving the throttle lever to idle position (c1). 2. Release the Operator Present Lever (b). 3. Turn engine switch to “OFF” (h2). 4. Close fuel valve by moving lever to the left (g2). wc_tx003232gb.
Operation 4.12 CT 24-4A Position of the Operator Safe and efficient use of this machine is the operator’s responsibility. Full control of the machine is not possible unless the operator maintains the proper working position at all times. While operating this machine the operator must: stand or walk behind the machine, facing forward; have both hands on the control handle; and guide the motion of the trowel by applying downward pressure to the control handle 4.
CT 24-4A Operation a c d b wc_gr004418 4.14 Emergency Shutdown Procedure Procedure If a breakdown or accident occurs while the machine is operating, follow the procedure below: 1. Stop the engine. 2. Close the fuel valve. 3. Remove the machine from the job site using correct lifting techniques. 4. Clean concrete from the blades and the machine. 5. Contact the rental yard or machine owner for further instructions. wc_tx003232gb.
Operation 4.15 CT 24-4A Pitch Adjustment To adjust blade pitch (angle): A = Twist pitch: turn the pitch adjusting knob (a) clockwise to increase pitch and counterclockwise to decrease pitch. Ref.
CT 24-4A 5 5.1 Maintenance Maintenance Maintaining the Emission Control System Normal maintenance, replacement or repair of emission control devices and systems may be performed by any repair establishment or individual; however, warranty repairs must be performed by a dealer/service center authorized by the engine manufacturer. See the supplied engine owner’s manual for the applicable emission warranty information. 5.
Maintenance 5.3 CT 24-4A Engine Oil 1. Drain oil while the engine is still warm. 2. Remove the oil fill plug (a) and drain cap (b) to drain oil. Note: In the interests of environmental protection, place a plastic sheet and a container under the machine to collect any liquid which drains off. Dispose of this liquid in accordance with environmental protection legislation. 3. Install drain cap. 4. Fill the engine crankcase with recommended oil up to the level of the plug opening (c).
CT 24-4A 5.4 Maintenance Servicing the Air Cleaner The engine is equipped with a dual element air cleaner. Service air cleaner frequently to prevent carburetor malfunction. NOTICE: Do not run engine without air cleaner. Severe engine damage will occur. Never use gasoline or other types of low flash point solvents for cleaning the air cleaner. A fire or explosion could result. WARNING To service: 1. Remove air cleaner cover (a). Remove both elements and inspect them for holes or tears.
Maintenance 5.5 CT 24-4A Spark Plug Clean or replace the spark plug as needed to ensure proper operation. Refer to your engine operator’s manual. The muffler becomes very hot during operation and remains hot for a while after stopping the engine. Do not touch the muffler while it is hot. WARNING Note: Refer to section “Technical Data” for the recommended spark plug type and the electrode gap setting. 1. Remove the spark plug and inspect it. 2. Replace the spark plug if the insulator is cracked or chipped.
CT 24-4A 5.6 Maintenance Cleaning the Sediment Cup 1. Turn the fuel valve off. 2. Remove the sediment cup (a) and the O-ring (b). 3. Wash both thoroughly in a nonflammable solvent. Dry and reinstall them. 4. Turn the fuel valve on and check for leaks. b a wc_gr000025 wc_tx003233gb.
Maintenance 5.7 CT 24-4A Adjusting the Idle Speed Remove the drive belt before making any adjustment to the carburetor. See Belt Replacement. The blades will engage unless the belt is removed from the machine. WARNING Adjust engine to the no load or idle speed per the Technical Data. 1. Start the engine and allow it to warm up to normal operating temperature. 2. Turn the throttle stop screw (a) in to increase speed, out to decrease speed.
CT 24-4A 5.8 Maintenance Carburetor Adjustment Remove the drive belt before making any adjustment to the carburetor. See Belt Replacement. The blades will engage unless the belt is removed from the machine. WARNING The pilot screw (a) is fitted with a limiter cap to prevent excessive enrichment of the air-fuel mixture in order to comply with emission regulations. The mixture is set at the factory and no adjustment should be necessary. Do not attempt to remove the limiter cap.
Maintenance 5.9 CT 24-4A Belt Replacement The trowel is equipped with a self-adjusting clutch. This clutch automatically tightens the belt and compensates for belt wear. Replace the belt if the clutch can no longer tighten belt enough to engage gearbox without slipping. To replace the drive belt: 1. Disconnect the spark plug lead. To avoid accidental starting of the engine, always disconnect the spark plug lead before working on machine. WARNING 2. Loosen the screws (d) and remove the belt guard (c). 3.
CT 24-4A 5.10 Maintenance Trowel Lubrication Grease trowel arms (b) with Shell Alvania RL2 grease or equivalent. Oil the pitch control cable and other parts of trowel on an as needed basis. Oil in the gearbox should not require replacement unless it was drained to service gearbox. Check quantity through plug (a) located on side of gearbox. Oil level should be to bottom of the plug threads. See Technical Data for oil quantity and type. a b wc_gr004389 wc_tx003233gb.
Maintenance 5.11 CT 24-4A Storage If trowel is being stored for more than 30 days: Change engine oil. Drain fuel from engine. Remove spark plug and pour 15 ml (½ ounce) of SAE 30 engine oil into the cylinder. Replace spark plug and crank engine to distribute oil. Refer to engine manual. Clean dirt from cylinder, cylinder head fins, blower housing, rotating screen, and muffler areas. To save space, place handle in its storage position. Cover trowel and engine and store in a clean, dry area.
CT 24-4A 6 Troubleshooting Troubleshooting Problem / Symptom Trowel does not develop full speed. Reason / Remedy Engine runs; poor trowel operation. Engine does not start or runs erratically. Trowel handle tends to rotate when idling. wc_tx003234gb.fm 43 Remove deposits built up in engine cylinder and engine head. Engine speed too low. Adjust speed. Clean or replace air filter. Clean debris from moving parts and trowel blades.
Technical Data 7 7.1 CT 24-4A Technical Data Dimensions and Weights Dimensions mm (in.) Dry Weight kg (lb) A 1537 (60-1/2) without float pan 64 (141) B 610 (24) with float pan 70 (153) C 1003 (39-1/2) D 940 (37) without float pan 66 (145) E 788 (31) with float pan 71 (157) Full Wet (Operating) Weight kg (lb) E C D B A wc_gr004383 44 wc_td000545gb.
CT 24-4A 7.2 Technical Data Engine Engine Power Rating Net power rating per SAE J1349. Actual power output may vary due to conditions of specific use. CT 24-4A 0620105, 0620849 Item No. Engine Engine make Honda Engine model GX 120 UT1 QX2 Max. rated power @ rated speed kW (Hp) Spark plug NGK BPR6ES / Denso W20EPR-U Electrode gap mm (in.) 0.7 – 0.8 (0.028 – 0.
Technical Data 7.3 CT 24-4A Trowel Model Item No. Trowel Diameter* mm (in.) Number of Blades Gear Box Lubrication type/ml (oz.) Speed Range rpm Pitch Range Degrees Mobilgear SH 220 Synthetic, ESeries Approx. 620 (21) 90–141 0–15 Trowel CT 24-4A 0620105 610 (24) 4 * Trowel blades must NOT be interchanged, i.e., do NOT put larger diameter blades on a smaller diameter trowel. 46 wc_td000545gb.
CT 24-4A 7.4 Technical Data Sound and Vibration Specifications The required sound specification, Paragraph 1.7.4.2.4 of 2006/42/EC Machinery Directive, is: the sound pressure level at operator’s location (LpA) : 97 db(A) the guaranteed sound power level (LWA) = 83 db(A) These sound values were determined according to ISO 3744 for the sound power level (LWA) and ISO 6081 for the sound pressure level (LpA) at the operator’s location.
Emission Control Systems Information and Warranty 8 Emission Control Systems Information and Warranty The Emission Control Warranty and associated information is valid only for the U.S.A., its territories, and Canada. 8.1 Emission Control Systems Warranty Statement See the supplied engine owner’s manual for the applicable exhaust and evaporative emission warranty statement. 48 wc_tx001753gb.
CONCRETE POWER TROWEL Table of Contents Acknowledgment....................................................................2 Foreword .................................................................................3 Safety Alerts ............................................................................4 A Word to the User/Operator ................................................5 Follow a Safety Program........................................................6 Prepare for Safe Operation..................
Foreword This safety manual is intended to point out some of the basic safety situations that may be encountered during the normal operation and maintenance of your trowel and to instruct you in safety practices for dealing with these conditions. This manual is NOT a substitute for the manufacturer’s operating manual(s). Additional precautions may be necessary, or some instructions may not apply, depending on equipment, attachments and conditions at the job site or in the service area.
A Word to the User/Operator It is YOUR responsibility to read and understand this safety manual and the manufacturer’s manual(s) before operating this equipment. This safety manual takes you step by step through the working day. Graphics have been provided to help you understand the text. Hazard recognition and accident prevention depend upon you being alert, careful, and properly trained in the inspection, operation, transport, maintenance, and storage of this equipment.
Follow a Safety Program Be Careful! Human error is the result of many factors: carelessness, fatigue, sensory overload, preoccupation, unfamiliarity with the machine or attachments, or drugs and alcohol, to name a few. You can avoid death or serious injury caused by these and other unsafe work practices. Be careful; never assume accidents cannot happen to you. For your safety and the safety of others, act safely and encourage your fellow workers to act safely as well.
Follow a Safety Program • Never allow children to play near, ride on or operate the equipment. • Keep bystanders away from the machine during operation. • Know the work area before you use the equipment. Be aware of possible hazards. • Only use attachments and parts that are approved by the manufacturer. • Follow all safe shutdown instructions (See page 21, Shut Down Safely).
Prepare for Safe Operation Check and Use All Available Safety Devices To protect you and others around you, your machine may be equipped with the safety equipment listed below. Additional equipment may be required or some items may not apply, depending on attachments used, job site conditions, or applicable job site rules.
Prepare for Safe Operation Check the Cooling System Use Caution When Fueling When checking the cooling system, make sure the engine is turned off and is cool. Remove the key to prevent fans from unexpectedly starting. Ensure the coolers and engine compartment are clean and free from debris, which could ignite and cause a fire. WARNING! Avoid injury from fire or explosion. Never fill the fuel tank with the engine running, while smoking or when near an open flame.
Prepare for Safe Operation Avoid Crystalline Silica (quartz) Dust WARNING! Avoid exposure to dust containing crystalline silica particles. This dust can cause serious injury to the lungs (silicosis). 3. Know the work operations where exposure to crystalline silica may occur. 4. Participate in air monitoring or training programs offered by the employer. 5.
Start Safely Warn Personnel Before Starting Starting the Engine Before starting, walk completely around the machine. Make sure no one is on it or close to it. Let others know you are starting up and don’t start until everyone is completely clear of the machine. As the equipment operator, you are responsible for the safe use of the machine, so always make sure you have communicated your work plans to others on the site. WARNING! Never attempt to start the engine by shorting across starter terminals.
Operate Safely Walk-Behind Trowels • Ensure that the operator is familiar with the trowel and is trained on its operation. • Do not start or operate the trowel if the drive train will not disengage. Centrifugal force between the trowel and surface when starting can cause uncontrolled handle movement that can cause serious injury. The handle must not move while pulling the engine recoil starter. • Visually check to be sure that the blades are free of obstructions and the area is clear for operation.
Shut Down Safely Storage Always store equipment properly when it is not being used. Equipment should be stored in a clean, dry location out of reach of children. WARNING! Avoid death or serious injury. Never leave a machine unattended with the engine running. Safe Shutdown Shut engine off, remove key The detailed shutdown procedure is given in your manufacturer’s manual(s). In general, this includes: • Stop machine. • Position controls in neutral or locked position.
Perform Maintenance Safely WARNING! Avoid death or serious injury from entanglement. Do not wear loose clothing or accessories. Stay away from all rotating components when the engine is running. Contact, wrapping or entanglement with rotating or moving parts could result in death or serious injury. Avoid rotating parts Wear a rubber apron and rubber gloves when working with corrosives. Wear gloves and safety shoes when handling wooden blocks or sharp-edged metal.
Perform Maintenance Safely Attach a “DO NOT OPERATE” warning tag to the control levers. Lockout/tagout the unit according to the manufacturer’s operating manual(s). If there is a key, remove it and take it with you. Install approved support device(s) when working under or near raised equipment. Remove only guards or covers that provide access to the area being serviced. Replace all guards and covers when work is complete. Do not operate the machine with gaurds removed. WARNING! Avoid injury or death.
Perform Maintenance Safely Ultra-Low Sulfur Diesel (ULSD) Hazard Engine Coolant Hazards (cont.) WARNING! Ultra-Low Sulfur Diesel (ULSD) poses a greater static ignition hazard than earlier diesel formulations with higher sulfur content. Avoid death or serious injury from fire or explosion; consult with your fuel or fuel system supplier to ensure the delivery system is in compliance with fueling standards for proper grounding and bonding practices.
Perform Maintenance Safely Battery Hazards The liquid in batteries contains acid, which is a POISON and could cause SEVERE CHEMICAL BURNS. Avoid injury: • Wear a face shield to prevent contact with your eyes. • Wear chemical-resistant gloves and clothing to keep electrolyte off your skin and regular clothing. Wear hand protection WARNING! Electrolyte will damage eyes or skin on contact. Always wear a face shield to avoid electrolyte in eyes.
Perform Maintenance Safely Complete Service and Repairs Before Machine is Released Tighten all bolts, fittings, and connections to torques specified by the manufacturer. Recheck all fluid levels before releasing the equipment for operation. Inspect for leftover components such as cotter pins, washers, locknuts, etc. after completing service. Replace any missing parts. All parts should be inspected during repair and replaced if worn, cracked or damaged.
Notes 33 Notes 34
Final Word to the User You have just finished reading the AEM Concrete Power Trowel Safety Manual. It is impossible for this manual to cover every safety situation that you may encounter on a daily basis. Your knowledge of these safety precautions and your application to the basic rules of safety will help to build good judgment in all situations. Our objective is to help you develop, establish, and maintain good safety habits to make operating a concrete power trowel easier and safer for you.
Important: For spare parts information, please see your Wacker Neuson Dealer, or visit the Wacker Neuson website at http://www.wackerneuson.com/. Wichtig! Informationen über Ersatzteile erhalten Sie von Ihrem Wacker Neuson Händler oder besuchen Sie die Wacker Neuson Website unter http://www.wackerneuson.com/. Important : Pour des informations sur les pièces détachées, merci de consulter votre distributeur Wacker Neuson, ou de visiter le site Internet de Wacker Neuson sur http://www.wackerneuson.com/.
