Husqvarna CRT 48-35L User manual

Operator’s manual, EN
Dear customer,
Thank you for choosing a Husqvarna quality product. We hope that you will
genuinely enjoy it.
Please note that the enclosed manual contains Wacker Neuson references.
The Husqvarna Group is vouching for the quality of this product.
If you have any questions, please do not hesitate to contact our local sales or
service point, or visit www.husqvarnacp.com.
Husqvarna AB
SE-561 82 Huskvarna, Sweden
Huskvarna, 2019-12-01
CRT 48-35L
CRT 48-37V
CRT 49-57K
1142222-26

Operator’s Manual
Ride-On Trowel
CRT48-37V
CRT48-35L
CRT48-57K
Type
Document
Date
Revision
Language
CRT48-37V, CRT48-35L, CRT48-57K
5100022491
0819
12
EN
5100022491

CALIFORNIA Proposition 65 Warning
wc_tx004643en.fm 3
CALIFORNIA Proposition 65 Warning
WARNING
The engine exhaust from this product contains chemicals known to the State of
California to cause cancer, birth defects, or other reproductive harm.
WARNING
Diesel engine exhaust and some of its constituents are known to the State of
California to cause cancer, birth defects, and other reproductive harm.
WARNING
Cancer and Reproductive Harm -
www.P65Warnings.ca.gov.
WARNING
Batteries, battery posts, terminals and related accessories contain lead and lead
compounds, and other chemicals known to the State of California to cause cancer
and birth defects or other reproductive harm. WASH HANDS AFTER HANDLING.
NOTICE! CALIFORNIA AIR RESOURCES BOARD
(CARB): This machine is considered a preempt Off-Road
Applicatoin as relating to CARB standards. The U.S. EPA
has sole authority to establish emission standards for
preempt construction equipment. For more information see
www.arb.ca.gov/msprog/offroad/preempt.htm

CALIFORNIA Proposition 65 Warning
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4
Notes

CRT48 Foreword
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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
identification
A nameplate listing the model number, item number, revision number, and serial
number is attached to this machine. The location of the nameplate is shown above.
Serial number
(S/N)
For future reference, record the serial number in the space provided below. You will
need the serial number when requesting parts or service for this machine.
Machine
documentation
■From this point forward in this documentation, Wacker Neuson Production
Americas LLC will be referred to as Wacker Neuson.
■Keep a copy of the Operator’s Manual with the machine at all times.
■For spare parts information, please see your Wacker Neuson Dealer, or visit the
Wacker Neuson website at http://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.
Machine Item Number
CRT48-37V 5100024209, 5100024290
CRT48-35L 5000620113, 5000620806
CRT48-57K 5100018892
wc_gr013202
Serial Number:

Foreword CRT48
6wc_tx004191gb_FM10.fm
Expectations
for
information in
this manual
■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.
■The information contained in this manual is based on machines manufactured
up until the time of publication. Wacker Neuson reserves the right to change any
portion of this information without notice.
■The illustrations, parts, and procedures in this manual refer to Wacker Neuson
factory-installed components. Your machine may vary depending on the
requirements of your specific region.
CALIFORNIA
Proposition
65 Warning
Combustion 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.
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.
Manufacturer’s
approval
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.

EC Declaration of Conformity
We, Husqvarna AB, SE 561 82 Huskvarna, SWEDEN, Tel. [phone] declare on our sole responsibility
that the product:
Description Concrete Smoothing Machine, Trowel
Brand HUSQVARNA
Type / Model CRT 48-35L, CRT 48-37V
Identication Serial numbers dating from 2019 and onwards
complies fully with the following EU directives and regulations:
Directive/Regulation Description
2006/42/EC
2014/30/EU
“relating to machinery”
“relating to electromagnetic compatibility”
and that the following standards and/or technical specications are applied;
EN 12649:2008+A1:2011
Partille, 2019-12-01
Martin Huber
R&D Director, Concrete Surfaces & Floors
Husqvarna AB, Construction Division
Responsible for technical documentation

Table of Contents
CRT48
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CALIFORNIA Proposition 65 Warning 3
Foreword 5
EC Declaration of Conformity 7
1 Safety Information 13
1.1 Signal Words Used in this Manual ..................................................... 13
1.2 Machine Description and Intended Use ............................................. 14
1.3 Safety Guidelines for Operating the Machine ..................................... 15
1.4 Service Safety .................................................................................... 17
1.5 Operator Safety while Using Internal Combustion Engines ............... 19
1.6 Safety Guidelines for Lifting the Machine ........................................... 20
2 Labels 22
2.1 Label Locations .................................................................................. 22
2.2 Label Meanings .................................................................................. 23
3 Lifting and Transporting 32
3.1 Lifting the Machine ............................................................................. 32
3.2 Preparing the Machine for Transport on a Truck or Trailer ................ 33
4 Operation 35
4.1 Preparing the Machine for First Use ................................................... 35
4.2 Position of the Operator ..................................................................... 35
4.3 Machine Components ........................................................................ 36
4.4 Machine Components Descriptions .................................................... 37
4.5 Recommended Fuel—Gasoline ......................................................... 38
4.6 Recommended Fuel—Diesel ............................................................. 38
4.7 Refueling the Machine ........................................................................ 39
4.8 Break-In Period .................................................................................. 40
4.9 Before Starting ................................................................................... 40
4.10 Starting, Steering, Operating,
and Stopping the Machine (Vanguard) ............................................... 41
4.11 Starting, Steering, Operating, and Stopping the Machine (Kohler) .... 43
4.12 Starting, Steering, Operating, and Stopping the Machine (Kubota) ... 45
4.13 Adjusting the Pitch .............................................................................. 47
4.14 Emergency Shutdown Procedure ....................................................... 48

Table of Contents CRT48
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5 General Maintenance 49
5.1 Maintaining the Emission Control System ...........................................49
5.2 Periodic Maintenance Schedule ..........................................................50
5.3 Maintaining the Gearboxes .................................................................51
5.4 Adjusting the Blade Arms ....................................................................53
5.5 Lubricate the Trowel Arms ..................................................................55
5.6 Mounting Float Pans ...........................................................................56
5.7 Replacing the Drive Belt ......................................................................58
5.8 Installing or Changing the Blades ........................................................60
5.9 Cleaning the Machine ..........................................................................62
5.10 Storage ................................................................................................63
5.11 Machine Disposal / Decommissioning .................................................64
6 Engine Maintenance: KOHLER 65
7 Engine Maintenance: Vanguard 70
8 Engine Maintenance: Kubota 72
9 Troubleshooting 77
10 Technical Data 78
10.1 Engine .................................................................................................78
10.2 Trowel ..................................................................................................79
10.3 Sound Measurements .........................................................................80
10.4 Vibration Measurements .....................................................................80
10.5 Dimensions ..........................................................................................81
11 Emission Control Systems Information and Warranty—Diesel 83
11.1 Emission Control System Background Information .............................83
11.2 Limited Defect Warranty for Wacker Neuson Emission Control
Systems ...............................................................................................84

Table of Contents
CRT48
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12 Emission Control Systems Information
and Warranty—Gasoline 89
12.1 Emission Control System Background Information ............................ 89
12.2 Limited Defect Warranty for Wacker Neuson Emission Control
Systems .............................................................................................. 90
13 AEM Safety Manual 95
14 Schematics 113
14.1 Electrical Schematic—CRT48-37V .................................................. 114
14.2 Electrical Schematic Components—CRT48-37V ............................. 115
14.3 Fuse/Relay Box Layout .................................................................... 115
14.4 Electrical Schematic—CRT48-35L ................................................... 116
14.5 Electrical Schematic Components—CRT48-35L ............................. 117
14.6 Electrical Schematic—CRT48-57K .................................................. 118
14.7 Electrical Schematic Components—CRT48-57K ............................. 119
14.8 Fuse/Relay Box Layout .................................................................... 119

Table of Contents CRT48
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12

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CRT48 Safety Information
1 Safety Information
1.1 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.
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.
This is the safety alert symbol. It is used to alert you to potential personal hazards.
►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.
►To avoid death or serious injury from this type of hazard, obey all safety
messages that follow this signal word.
WARNING
WARNING indicates a hazardous situation which, if not avoided, could result in
death or serious injury.
►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.
►To avoid possible minor or moderate injury from this type of hazard, obey all
safety messages that follow this signal word.

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Safety Information CRT48
1.2 Machine Description and Intended Use
This machine is a ride-on concrete finishing trowel. The Wacker Neuson Ride-On
Trowel consists of a frame onto which are mounted a gasoline or diesel engine, a fuel
tank, a water tank, two gearboxes joined by a drive shaft, and an operator’s platform
with controls and a seat. A set of metal blades is connected to each gearbox. A ring
guard surrounds the blades. The engine rotates the blades via the gearboxes and a
clutch mechanism. The rotating blades ride on the surface of curing concrete, creating
a smooth finish. The operator, who sits on the operator’s platform, uses the controls and
the throttle pedal 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 the curing concrete
■Fire hazards from improper refueling techniques
■Fuel and its fumes, fuel spillage from improper lifting technique
■Personal injury from improper lifting techniques
■Cutting hazards from sharp or worn blades
To protect yourself and others, make sure you thoroughly read and understand the
safety information presented in this manual before operating the machine.

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CRT48 Safety Information
1.3 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. People
operating the machine must be familiar with the potential risks and hazards
associated with it.
Operator
qualifications
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, drugs, or prescription drugs
Application
area
Be aware of the application area.
■Keep unauthorized personnel, children, and pets away from the machine.
■Remain aware of changing positions and the movement of other equipment and
personnel in the application area/job site.
■Identify whether special hazards exist in the application area, such as toxic
gases or unstable ground conditions, and take appropriate action to eliminate
the special hazards before using the machine.
■Do not operate the machine in areas that contain flammable objects, fuels, or
products that produce flammable vapors.
Dust
precaution
Dust created by construction activities may cause silicosis or respiratory harm. To
reduce the risk of exposure:
■Work in a well ventilated area.
■Use a dust control system.
■Wear an approved dust/particle respirator.
Safety
devices,
controls, and
attachments
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:

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Safety Information CRT48
■Do not operate the machine if any safety devices or guards are missing or
inoperative.
■Do not modify or defeat the safety devices.
■Only use accessories or attachments that are approved by Wacker Neuson.
Safe
operating
practices
When operating this machine:
■Remain aware of the machine’s moving parts. Keep hands, feet, and loose
clothing away from the machine’s moving parts.
■Do not operate a machine in need of repair.
■Do not consume the operating fluids used in this machine. Depending on your
machine model, these operating fluids may include water, wetting agents, fuel
(gasoline, diesel, kerosene, propane, or natural gas), oil, coolant, hydraulic oil,
heat transfer fluid (propylene glycol with additives), battery acid, or grease.
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
■Safety-toed footwear
After use ■Stop the engine when the machine is not being operated.
■Close the fuel valve on engines equipped with one when the machine is not
being operated.
■Ensure that the machine will not tip over, roll, slide, or fall when not being
operated.
■Store the machine properly when it is not being used. The machine should be
stored in a clean location out of the reach of children.

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CRT48 Safety Information
1.4 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
protective devices.
■Only trained personnel shall troubleshoot or repair problems occurring with the
machine.
■Contact Wacker Neuson for additional training if necessary.
When servicing or maintaining this machine:
■Do not allow untrained or 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.
Precautions When servicing or maintaining the machine:
■Read and understand the service procedures before performing any service to
the machine.
■All adjustments and repairs must be completed before operating the machine.
Do not operate the machine with a known problem or deficiency.
■All repairs and adjustments shall be completed by a qualified technician.
■Turn off the machine before performing maintenance or making repairs.
■Remain aware of the machine’s moving parts. Keep hands, feet, and loose
clothing away from the machine’s moving parts.
■Reinstall the safety devices and guards after repair and maintenance
procedures are complete.
Machine
modifications
When servicing or maintaining the machine:
■Use only accessories/attachments that are approved by Wacker Neuson.
■Do not defeat safety devices.
■Do not modify the machine without the express written approval of Wacker
Neuson.
Replacing
parts and
labels
■Replace worn or damaged components.
■Replace all missing and hard-to-read labels.
■When replacing electrical components, use components that are identical in
rating and performance to the original components.
■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.
Cleaning When cleaning and servicing the machine:
■Keep machine clean and free of debris such as leaves, paper, cartons, etc.
■Keep labels legible.
■Clean with soapy water only.
When cleaning the machine:
■Do not clean the machine while it is running.

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Safety Information CRT48
■Never use gasoline or other types of fuels or flammable solvents to clean the
machine. Fumes from fuels and solvents can become explosive.
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).

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CRT48 Safety Information
1.5 Operator Safety while Using Internal Combustion Engines
Operating
safety
When running the engine:
■Keep the area around the 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.
■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.
■Reinstall the fuel tank cap after refueling.
■Do not smoke.
■Do not refuel a hot or running engine.
■Do not refuel the engine near sparks or open flames.
■Use suitable tools for refueling (for example, a fuel hose or a funnel).
■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.
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.
►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.
►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.

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Safety Information CRT48
1.6 Safety Guidelines for Lifting the Machine
When lifting the machine:
■Make sure slings, chains, hooks, ramps, jacks, forklifts, cranes, hoists, and any
other type of lifting device used is attached securely and has enough weight-
bearing capacity to lift or hold the machine safely. See the Technical Data
chapter for machine weight.
■Remain aware of the location of other people when lifting the machine.
■Only use the lifting points and tie-downs described in the Operator’s Manual.
■Make sure the transporting vehicle has sufficient load capacity and platform size
to safely transport the machine.
To reduce the possibility of injury:
■Do not stand under the machine while it is being lifted or moved.
■Do not get onto the machine while it is being lifted or moved.