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CRT 48-31V-ES Table of Contents 1. Foreword 3 2. Safety Information 4 3. 4. 2.1 Laws Pertaining to Spark Arresters ...................................................... 4 2.2 Operating Safety .................................................................................. 5 2.3 Operator Safety while using Internal Combustion Engines .................. 6 2.4 Service Safety ...................................................................................... 7 2.5 Label Locations 2.
Table of Contents 5. CRT 48-31V-ES Maintenance 5.1 5.2 5.3 5.4 5.5 5.6 5.7 5.8 5.9 5.10 5.11 26 Periodic Maintenance Schedule ..........................................................26 Trowel Gearboxes ...............................................................................27 Switching Blade Positions ...................................................................28 Mounting Float Pans ...........................................................................29 Transporting Trowels .......
CALIFORNIA Proposition 65 Warning: WARNING 1. 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 This manual provides information and procedures to safely operate and maintain this Wacker model. For your own safety and protection from injury, carefully read, understand and observe the safety instructions described in this manual.
Safety Information 2. CRT 48-31V-ES Safety Information This manual contains DANGER, WARNING, CAUTION, NOTICE and NOTE callouts 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 injury hazards. Obey all safety messages that follow this symbol to avoid possible injury or death.
CRT 48-31V-ES 2.2 Operating Safety WARNING wc_si000050gb.fm Safety Information Familiarity and proper training are required for the safe operation of equipment. Equipment operated improperly or by untrained personnel can be dangerous. Read the operating instructions contained in both this manual and the engine manual and familiarize yourself with the location and proper use of all controls.
Safety Information 2.3 CRT 48-31V-ES Operator Safety while using Internal Combustion Engines DANGER Internal combustion engines present special hazards during operation and fueling. Read and follow the warning instructions in the engine owner’s manual and the safety guidelines below. Failure to follow the warnings and safety guidelines could result in severe injury or death. 2.3.
CRT 48-31V-ES 2.4 Service Safety WARNING wc_si000050gb.fm Safety Information Poorly maintained equipment can become a safety hazard! In order for the equipment to operate safely and properly over a long period of time, periodic maintenance and occasional repairs are necessary. 2.4.1 DO NOT attempt to clean or service the machine while it is running. Rotating parts can cause severe injury. 2.4.2 DO NOT crank a flooded engine with the spark plug removed on gasoline-powered engines.
Safety Information 2.5 wc_si000050gb.
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Safety Information 2.6 CRT 48-31V-ES Safety and Operating Labels Wacker machines use international pictorial labels where needed. These labels are described below: Label Meaning DANGER! No sparks, flames or burning objects near machine. CAUTION! Use only clean, filtered gasoline fuel. Water tank fill. Use only clean water or waterbased retardants. WARNING! Hot surface! DANGER! Engines emit carbon monoxide; operate only in well-ventilated area. Read the Operator’s Manual.
CRT 48-31V-ES Label Safety Information Meaning WARNING! Cutting hazard. Always replace blade guard! WARNING! Pressurized contents. Do not open when hot! WARNING! Hand injury if caught in moving belt. Always replace beltguard. CAUTION! Lifting point. Tie-down point. Key switch, engine start: Off On Start WARNING! Read and understand the supplied Operator’s Manual before operating this machine. Failure to do so increases the risk of injury to yourself or others. wc_si000050gb.
Safety Information CRT 48-31V-ES Label Meaning Blade pitch control. Turn both controls inward to increase blade pitch. Refer to section Pitch Adjustment. Operator’s Manual must be stored on machine. Replacement Operator’s Manual can be ordered through your local Wacker distributor. R e m o o v e r h P a n s a p e r v e p a n f r o m e a d . c a n f a l l a n d s o n i s h i t .
CRT 48-31V-ES Label Safety Information Meaning CAUTION! Disconnect battery before removing cover. Replace cover before using the machine. CAUTION! Engine oil pressure is low! Stop the engine and check the oil level. CAUTION! Low voltage! Stop the engine and check the charging system. CAUTION! Coolant Temperature is too high. Stop the engine and check the coolant level. Use only Glygoyle 460 gear oil in gearbox.
Technical Data 3. CRT 48-31V-ES Technical Data 3.1 Engine Part No. CRT 48-31V-ES 0009216 CRT 48-31V-ES-E 0009482 Engine Engine Make Vanguard Engine Model DM950G Rated Power kW (Hp) 23.1 (31) Displacement cm³ (in³) 950 (58) Spark Plug Electrode Gap type mm (in.) Champion RC12YC 0.76 (0.030) Engine Speed - full load rpm 4000 Engine Speed - idle rpm 1500 Battery Fuel Fuel Tank Capacity Fuel Consumption V / size type l (gal.) l (gal.)/hr. 12 / Group 24 Regular unleaded gasoline 24.
CRT 48-31V-ES 3.2 Technical Data Trowel Part No. CRT 48-31V -ES 0009216 Rev. 119 and higher CRT 48-31V -ES 0009216 Rev. 118 and lower CRT 48-31V -ES-E 0009482 Rev. 119 and higher CRT 48-31V -ES-E 0009482 Rev. 118 and lower Trowel Operating Weight Dimensions (L x W x H) mm (in.) Rotor Speed (range) rpm Blade Pitch (range) 528 (1165) kg (lbs.
Technical Data 3.3 CRT 48-31V-ES Sound and Vibration Specifications The required sound specification, Paragraph 1.7.4.f of 89/392/EEC Machinery Directive, is: • the sound pressure level at operator’s location (LpA) 91 dB(A) • the guaranteed sound power level (LWA) 109 dB(A) These sound values were determined according to ISO 3744 for the sound power level (LWA) and ISO 11204 for the sound pressure level (LpA) at the operator’s location.
CRT 48-31V-ES 4. Operation Operation 4.1 Description The Riding Trowel is a modern, high production machine. Finishing rate will vary depending on operator skill and job conditions. The heavy-duty gearboxes are designed to provide exceptional performance, low maintenance, and trouble-free use in most conditions. The low speed unit is designed to provide higher torque, to optimize performance with the use of pans.
Operation 4.2 Ref. CRT 48-31V-ES Features and Controls Description Ref.
CRT 48-31V-ES Operation To familiarize a new operator with the Riding Trowel the following steps should be taken: 4.3 4.2.1 With the operator in the seat, show him or her the functions of the joysticks (c) and how to start the machine. 4.2.2 Have the operator practice steering the trowel. A hard concrete slab slightly wetted with water is an ideal place for an operator to practice with the machine. For this practice, pitch the blades up approximately ¼" on the leading edge.
Operation 4.4 CRT 48-31V-ES Before Starting Before starting the trowel, check the following: • fuel level • oil level in the engine • condition of the air filter • condition of trowel arms and blades Grease the trowel arms daily. 4.5 Starting Before starting the operator must know the location and function of all controls. 4.5.1 Push down on the throttle foot pedal, turn the engine keyswitch (s), and hold it until the engine starts.
CRT 48-31V-ES 4.7 Operation Operation To utilize your WACKER Riding Trowel to its fullest capacity, the machine should be driven in the direction that the operator is facing. This will finish the widest possible area, while giving the operator an excellent view of the slab surface about to be troweled. When the machine reaches the end of the slab, make a 180° U-turn, and repeat the straight line of direction to the other end of the slab.
Operation 4.8 CRT 48-31V-ES Steering See Graphic: wc_gr000688 Refer to the illustration for the necessary hand motions to move the trowel in the desired direction, described below. 1 - forward 2 - reverse 3 - rotate clockwise 4 - rotate counter-clockwise 5 - left sideways 6 - right sideways wc_tx000143gb.
CRT 48-31V-ES 4.9 Operation Status Indicator Lights See Graphic: wc_gr001496 During normal operation, the green status indicator light will remain on. A flashing green light indicates the software is operating in “limp home” mode. This can occur if a load pin is damaged or has an open or short circuit in the wire harness. The “limp home” mode is designed to allow the operator to continue steering the trowel at a reduced level until a repair can be made.
Operation Ref. CRT 48-31V-ES Description Ref. Description 1 Right actuator 6 Left load pin 2 Side actuator 7 Left joystick 3 Left actuator 8 Right joystick 4 Right load pin 9 Control board 5 Side load pin 10 Status lights wc_tx000143gb.
CRT 48-31V-ES Operation 4.10 Pitch Adjustment See Graphic: wc_gr000147 When changing or setting the pitch (angle) of the trowel blades, slow the machine, set the desired pitch on the left side of the machine, then adjust the right side to match. To increase the pitch, turn the pitch control inward (a). Use the pitch indicator (b) to adjust pitch equally on both right and left trowel blades. Working Conditions of Concrete a 5-10º b 15º 25° 4 0° 3 2 1 20-25º wc_gr000147 wc_tx000143gb.
Maintenance 5. CRT 48-31V-ES Maintenance 5.1 Periodic Maintenance Schedule The chart below lists basic trowel and engine maintenance. Refer to engine manufacturer’s Operator’s Manual for additional information on engine maintenance. A copy of the engine Operator’s Manual was supplied with the machine when it was shipped. To service the engine, tilt the seat forward. Daily Grease trowel arms. Check fuel level. Check engine oil level.1 Inspect air filter. Replace as needed.
CRT 48-31V-ES 5.2 Maintenance Trowel Gearboxes See Graphic: wc_gr000156 Check the gearboxes for the correct oil level after every 20 hours of operation. Change the gearbox oil every 300 hours. To check the oil level: Each CRT gearbox is equipped with two oil fill plugs. Remove one gearbox oil fill plug (b). If the level is below the threads of the oil fill plug hole, add synthetic gear oil through the opening. DO NOT overfill.
Maintenance 5.3 CRT 48-31V-ES Switching Blade Positions See Graphic: wc_gr000255 To switch the position of the blades from the non-overlapping position (f) to the overlapping position (g): 5.3.1 Place the trowel on a flat, level surface. 5.3.2 Remove the screws (a) holding the blade to the trowel arm. 5.3.3 CRT 48 only - Remove the plastic plug from the off-set screw hole (b) and place it into screw hole (c) to prevent it from filling with concrete. 5.3.
CRT 48-31V-ES 5.4 Maintenance Mounting Float Pans See Graphic: wc_gr000275 Certain applications may require the use of float pans. Optional float pans (a) are available, and are used with the machines in the nonoverlapping configuration only. To mount float pans: Lift trowel off the ground with the engine off and position the pan against the blades. Turn pan either to the right or left to engage clip angles (b) as shown.
Maintenance 5.6 CRT 48-31V-ES Drive Belt 0009482 Revs. 123 and higher See Graphic: wc_gr003665 0009216, 0009482 Revs. 122 and lower See Graphic: wc_gr000152 To replace the drive belt: 5.6.1 Place the trowel on a flat, level surface with the blades pitched flat. 5.6.2 Disconnect battery. 5.6.3 Remove the beltguard. Honda / Kohler: Remove bolts holding guard in place. Vanguard: Remove two bolts holding base of air cleaner to beltguard. Remove two bolts holding beltguard to engine. wc_tx000144gb.fm 5.
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Maintenance 5.7 CRT 48-31V-ES Battery Jump Start Procedure Occasionally, it may be necessary to jump start a weak battery. If jump starting is necessary, the following procedure is recommended to prevent starter damage, battery damage, and personal injuries. DANGER Jump starting a battery incorrectly can cause battery to explode, resulting in severe personal injury or death. Do not smoke or allow ignition sources near the battery, and do not jump start a frozen battery.
CRT 48-31V-ES 5.8 Maintenance Spark Plug Clean or replace spark plug as needed to ensure proper operation. Refer to the engine Owner’s Manual. Recommended Plug: Champion RC12YC WARNING The muffler and engine cylinder become very hot during operation and remain hot for a while after stopping the engine. Allow engine to cool before removing spark plug. 5.8.1 Remove spark plug and inspect it. 5.8.2 Replace plug if the insulator is cracked or chipped. Clean spark plug electrodes with a wire brush. 5.8.
Maintenance 5.9 CRT 48-31V-ES Air Cleaner See Graphic: wc_gr000216 To service: 5.9.1 Unlock clamps (d) and remove cover (c). 5.9.2 Remove cartridge (b) from air cleaner body (a). Clean by gently tapping cartridge. (Replace cartridge if very dirty or damaged.) 5.9.3 Carefully clean out air cleaner cover (c). NEVER use gasoline or other types of low flash point solvents for cleaning the air cleaner. A fire of explosion could result. WARNING 5.9.4 Install cartridge in body 5.9.
CRT 48-31V-ES Maintenance 5.10 Engine Oil See Graphic: wc_gr000217 Drain oil while engine is still warm. 5.10.1 Remove oil fill cap (a) and drain plug (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. 5.10.2 Install drain plug and torque to 34.6 Nm (25.5 ft.lbs.). 5.10.
Maintenance CRT 48-31V-ES 5.11 Troubleshooting Problem Engine does not start. Machine out of balance; wobbling excessively. Machine does not move. wc_tx000144gb.fm Reason Remedy Operator present switch is not engaged. Sit in operator's seat. Oil alert shutdown feature is activated. Add oil to engine. Engine problem. Oil alert shutdown feature is activated. Operator is over-steering.
CRT 48-31V-ES Problem Machine does not respond correctly to control lever movement. Trowel noisy. wc_tx000144gb.fm Maintenance Reason Remedy Sheared key. Check all keys in drive system. Loose electrical connector on actuator or joystick. Check all connections. Electronic control board failure. Replace electronic control board. Trowel blades have become misaligned and are contacting each other during rotation. Replace damaged blades.
Maintenance CRT 48-31V-ES Notes wc_tx000144gb.
Trowel.qxd 11/24/04 10:18 AM Page 1 SAFETY ALERT SYMBOL ! Why is SAFETY important to YOU? This Safety Alert Symbol means ATTENTION is required! 3 BIG REASONS The Safety Alert Symbol identifies important safety messages on machines, safety signs, in manuals or elsewhere. When you see this symbol, be alert to the possibility of personal injury or death. Follow the instructions in the safety message.
Trowel.qxd 11/24/04 10:18 AM Page 3 TABLE OF CONTENTS Page WORD OF EXPLANATION ................................................................2 FOREWORD........................................................................................4 A WORD TO THE USER ....................................................................5 FOLLOW A SAFETY PROGRAM ......................................................6 PREPARE FOR SAFE OPERATION ..................................................7 START SAFELY ...
Trowel.qxd 11/24/04 10:18 AM Page 5 A WORD TO THE USER Remember that YOU are the key to safety. Good safety practices not only protect you but also protect the people around you. It is your responsibility to study this manual and the manufacturer’s manual(s) for your specific machine before operating your machine. Make them a working part of your safety program. Keep in mind that this safety manual is written for concrete power trowels only.
Trowel.qxd 11/24/04 10:18 AM Page 7 PREPARE FOR SAFE OPERATION LEARN TO BE SAFE SAFETY DEVICES • Read the operator’s manual. If one has not been provided, get one and study it before operating the equipment. Know what safety devices your trowel is equipped with … and see that each item is securely in place and in operating condition. • Learn the location and understand the functions of all controls before attempting to operate the equipment.
Trowel.qxd 11/24/04 10:18 AM Page 9 PREPARE FOR SAFE OPERATION FIRE PREVENTION Inspect electrical wiring for damage or wear. Always stop the engine and allow it to cool before refueling. Batteries produce explosive gas. Keep open flame or sparks away. Never refuel – • While smoking In case of accident or fire, be ready to act quickly, yet calmly. Do not panic.
Trowel.qxd 11/24/04 10:18 AM Page 11 START SAFELY START CORRECTLY – START SAFELY Before starting, check for proper functioning of all operation and shutdown controls. Check all controls to be sure they are in the correct startup position. Know the proper starting procedure for your trowel. Follow the manufacturer’s operational instructions. WALK-BEHIND TROWELS • Ensure that the operator is familiar with the trowel and is trained on its operation.
Trowel.qxd 11/24/04 10:18 AM Page 13 WORK SAFELY SAFE WORKING PROCEDURES DANGER – CARBON MONOXIDE Exhaust from the engine contains poisonous carbon monoxide gas that is not easily detected as it is colorless and odorless. Exposure to carbon monoxide can cause loss of consciousness and may lead to death! Do not operate your trowel indoors or in an enclosed area unless adequate ventilation is provided. Ensure that permissible carbon monoxide levels are monitored and not exceeded.
Trowel.qxd 11/24/04 10:18 AM Page 15 SHUT DOWN SAFELY SHUT DOWN PROCEDURES Never disable or disconnect the safety devices! Always close fuel valves when the machine is not being used. Refer to the manufacturer’s manuals for specific shut down procedures. 15 Trowel.qxd 11/24/04 10:18 AM Page 16 LOAD AND UNLOAD SAFELY PRECAUTIONS • Power trowels are heavy and awkward to move around. • Do not attempt to lift the ride-on trowel by the guard rings. • Use proper heavy lifting procedures.
Trowel.qxd 11/24/04 10:18 AM Page 17 PERFORM MAINTENANCE SAFELY SERVICE AND MAINTENANCE SAFETY GENERAL PROCEDURES Poorly maintained equipment can become a safety hazard! In order for your trowel to operate safely and properly over a long period of time, periodic maintenance and occasional repairs are necessary. Do not perform any work on the trowel unless you are authorized to do so. Do not attempt to clean, service, or perform adjustments on the trowel while it is running.
Trowel.qxd 11/24/04 10:18 AM Page 19 PERFORM MAINTENANCE SAFELY FIRE PREVENTION Avoid fire hazards. Store all flammable fluids and materials away from your work area. Always stop the engine and allow it to cool before you refuel the trowel. Do not refuel while smoking or near open flame or sparks. Never overfill fuel tanks or fluid reservoirs. Whenever the sparkplug is removed, do not test for spark on gasoline powered engines if engine is flooded or the smell of gasoline is present.
Trowel.qxd 11/24/04 10:18 AM Page 21 PERFORM MAINTENANCE SAFELY TROWEL BLADES AND PANS HYDRAULIC SYSTEMS • Do not attempt to clean, service or perform adjustments on the trowel while it is running. Hydraulic fluid systems operate under high pressure. Even a small leak can have enough force to penetrate the eyes or skin. If injury occurs, seek immediate medical treatment by a physician familiar with injuries that are caused by hydraulic oil escaping under pressure.
Trowel.qxd 11/24/04 10:18 AM Page 23 A FINAL WORD TO THE USER Remember that YOU are the key to safety. Good safety practices not only protect you but protect the people around you. You have read this safety manual and the manufacturer’s manual(s) for your specific trowel. Make them a working part of your safety program. Keep in mind that this safety manual is written for only this type of machine.
AEM_ConcretePowerTrowel.
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Wacker Construction Equipment AG · Preußenstraße 41 · D-80809 München · Tel.: +49-(0)89-3 54 02 - 0 · Fax: +49 - (0)89-3 54 02-3 90 Wacker Corporation · P.O. Box 9007 · Menomonee Falls, WI 53052-9007 · Tel. : (262) 255-0500 · Fax: (262) 255-0550 · Tel. : (800) 770-0957 Wacker Asia Pacific Operations · Skyline Tower, Suite 2303, 23/F · 39 Wang Kwong Road, Kowloon Bay, Hong Kong · Tel.
