Wacker Neuson RD 12A User manual

0182863en 001 0610
0182863EN
Operator’s Manual
Roller
RD 12A

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 Wacker Neuson Corporation
represents an infringement of valid copyrights. Violators will be prosecuted.
Trademarks All trademarks referenced in this manual are the property of their respective owners.
Manufacturer Wacker Neuson Corporation
N92W15000 Anthony Avenue
Menomonee Falls, WI 53051 U.S.A.
Tel: [phone] · Fax: [phone] · Tel: [phone]
www.wackerneuson.com
Original
instructions
This Operator’s Manual presents the original instructions. The original language of this
Operator’s Manual is American English.

Foreword
wc_tx001555gb.fm 3
Foreword
Machines
covered in
this manual
Machine
documentation
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.
Refer to the separate Repair Manual for detailed instructions on servicing and
repairing the machine.
If you are missing any 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.
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 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.
CALIFORNIA
Proposition
65 Warning
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.
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 dis-
charge 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.
Machine Item Number
RD 12A 0620058, rev 211 and higher
0620320, rev 211 and higher
0620369, rev 211 and higher

Foreword
4 wc_tx001555gb.fm
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.

RD 12A Table of Contents
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Foreword 3
1 Safety Information 9
1.1 Signal Words Used in this Manual ....................................................... 9
1.2 Machine Description and Intended Use ............................................. 10
1.3 Operator Safety while Using Internal Combustion Engines ............... 13
1.4 Service Safety ................................................................................... 14
2 Labels 16
2.1 Label Locations .................................................................................. 16
2.2 Label Meanings .................................................................................. 17
3 Lifting and Transporting 21
3.1 Lifting the Machine ............................................................................. 21
3.2 Tying Down and Transporting the Machine ........................................ 22
4 Operation 24
4.1 Features and Controls ........................................................................ 24
4.2 Control Panel ...................................................................................... 26
4.3 Preparing the Machine for First Use ................................................... 27
4.4 Position of the Operator ..................................................................... 27
4.5 Recommended Fuel ........................................................................... 27
4.6 Roll Over Protection Structure (ROPS) .............................................. 28
4.7 Foldable Roll Over Protection Structure (ROPS) (if equipped) .......... 29
4.8 Rotating Beacon (if equipped) ............................................................ 30
4.9 Backup Alarm (if equipped) ................................................................ 30
4.10 Lighting Equipment (if equipped) ........................................................ 31
4.11 Seat Belt ............................................................................................. 31
4.12 Operator Presence System ................................................................ 32
4.13 Scraper Bars ...................................................................................... 33
4.14 Anti-Vandalism Protection and Machine Access ................................ 34
4.15 Articulation Joint Lockarm .................................................................. 35

Table of Contents RD 12A
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4.16 Machine Stability .................................................................................36
4.17 Before Starting ....................................................................................37
4.18 Starting ................................................................................................38
4.19 Stopping/Parking .................................................................................41
4.20 Emergency Shutdown Procedure ........................................................42
4.21 Parking Brake ......................................................................................43
4.22 Parking Brake Adjustment ...................................................................44
4.23 Direction and Speed ............................................................................45
4.24 Transmission .......................................................................................46
4.25 Vibration ..............................................................................................47
4.26 Water Spray System ...........................................................................48
4.27 Auxiliary Battery Positive Terminal ......................................................49
4.28 Panel Indicator Lights ..........................................................................50
4.29 Adding Ballast to Rear Drum ...............................................................51
5 Maintenance 52
5.1 Engine Maintenance Schedule ............................................................52
5.2 Roller Maintenance Schedule .............................................................53
5.3 Rear Frame Access .............................................................................54
5.4 Battery .................................................................................................55
5.5 Fuel Filter ............................................................................................57
5.6 Engine Oil and Filter ............................................................................58
5.7 Spark Plug ...........................................................................................59
5.8 Engine Air Cleaner ..............................................................................60
5.9 Grease Fittings ....................................................................................61
5.10 Hydraulic System Cleanliness .............................................................62
5.11 Hydraulic Oil Requirements .................................................................63
5.12 Hydraulic Oil Level ..............................................................................64
5.13 Hydraulic Suction Strainer ...................................................................64
5.14 Changing the Hydraulic Oil & Filter .....................................................65
5.15 Bleeding the Hydraulic System ...........................................................65
5.16 Long-Term Storage .............................................................................65
5.17 Towing Bypass Valve ..........................................................................67
5.18 Towing .................................................................................................68
6 Basic Troubleshooting 70

RD 12A Table of Contents
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7 Schematics 71
7.1 Electrical Schematic ........................................................................... 71
7.2 Electrical Schematic Components ...................................................... 72
7.3 Hydraulic Schematic ........................................................................... 73
7.4 Hydraulic Schematic Components ..................................................... 73
8 Technical Data 75
8.1 Engine ................................................................................................ 75
8.2 Roller .................................................................................................. 76
8.3 Lubrication .......................................................................................... 76
8.4 Dimensions ......................................................................................... 77
8.5 Sound Measurements ........................................................................ 77
8.6 Vibration Measurements .................................................................... 78
8.7 Hydraulic Pressures ........................................................................... 78

Table of Contents RD 12A
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RD 12A Safety Information
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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.
fObey all safety messages that follow this symbol.
DANGER
DANGER indicates a hazardous situation which, if not avoided, will result in death
or serious injury.
fTo 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.
fTo avoid possible death or serious injury from this type of hazard, obey all safety mes-
sages that follow this signal word.
CAUTION!
CAUTION indicates a hazardous situation which, if not avoided, could result in
minor or moderate injury.
fTo avoid possible minor or moderate injury from this type of hazard, obey all safety mes-
sages that follow this signal word.

Safety Information RD 12A
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1.2 Machine Description and Intended Use
This machine is a dual drum, ride-on roller. The Wacker Neuson Ride-
On Roller consists of an articulated frame onto which is mounted a
gasoline or diesel engine, a fuel tank, a hydraulic tank, a water tank, a
hydrostatic drive system, two steel drums containing internal eccentric
weights, and an operator’s platform with a ROPS (Roll Over Protective
Structure). The engine powers the hydraulic systems that provide
machine movement and drum vibration. The vibrating drums smooth
and compact the work surface as the machine moves. Machine speed,
direction, and vibration are controlled by the operator from the
operator’s seat on the platform.
The machine is designed as a lightweight roller to be used in the
compaction of sublayers and finish layers of asphalt on roads,
driveways, parking lots, and other types of asphalt-covered surfaces.
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 tow other machines
• Using the machine to spray liquids other than water (i.e., diesel
fuel on asphalt)
• 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
• Burns from hot hydraulic fluid
• Fire hazards from improper refueling techniques
• Fuel and its fumes
• Personal injury from improper lifting techniques

RD 12A Safety Information
wc_si000516gb.fm 11
• Crushing hazards from improper operation (feet, legs, or arms
extending outside of the operator work station) and for other
persons in the work zone
• Line of sight blockage by the ROPS
To protect yourself and others, make sure you thoroughly read and
understand the safety information presented in this manual before
operating the machine.
Safety Guidelines for Operating the Machine
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
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.
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 or drugs
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
1.2.1
DO NOT drive over curbs or other uneven objects that will result in the
machine and operator being shaken.
1.2.2 DO NOT attempt to start the machine when standing alongside it. Only
start the engine when seated in the driver's seat and with the forward/
reverse control in the neutral position.
1.2.3 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.
1.2.4 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.
WARNING

Safety Information RD 12A
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1.2.5 Do not use accessories or attachments that are not recommended by
Wacker Neuson. Damage to equipment and injury to the user may result.
1.2.6 Never leave the machine running unattended.
1.2.7 NEVER operate the machine with the fuel cap loose or missing.
1.2.8 NEVER carry passengers on the machine. Crushing hazard—keep clear
of the articulated steering joint between the front and rear frames.
1.2.9 NEVER use or attempt to repair damaged safety belts or ROPS. Replace
only with Wacker Neuson spare parts.
1.2.10 ALWAYS disengage and stow the locking bar for the articulated steering
joint before operating the machine. The machine cannot be steered when
the locking bar is engaged.
1.2.11 ALWAYS check that all controls are functioning properly immediately after
start-up! DO NOT operate the machine unless all controls operate
correctly.
1.2.12 ALWAYS remain aware of changing positions and the movement of other
equipment and personnel on the job site.
1.2.13 Always remain seated and wear the seat belt at all times while operating
the machine.
1.2.14 ALWAYS remain aware of changing surface conditions and use extra care
when operating over uneven ground, on hills, or over soft or coarse
material. The machine could shift or slide unexpectedly.
1.2.15 ALWAYS use caution when operating the machine near the edges of pits,
trenches or platforms. Check to be sure that ground surface is stable
enough to support the weight of the machine with operator and that there
is no danger of the roller sliding, falling or tipping.
1.2.16 Always wear protective clothing appropriate to the job site when operating
the machine.
1.2.17 Always keep hands, feet, and loose clothing away from moving parts of the
machine.
1.2.18 Read, understand, and follow procedures in the Operator’s Manual before
attempting to operate the machine.
1.2.19 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.
1.2.20 Always operate the machine with all safety devices and guards in place
and in working order.
1.2.21 Make sure that all other persons are at a safe distance from the machine.
Stop the machine if people step into the working area of the machine.
1.2.22 Do not use a cellphone or send text messages while operating this
machine.

RD 12A Safety Information
wc_si000516gb.fm 13
1.3 Operator Safety while Using Internal Combustion Engines
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.
• 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.
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.
fRead 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. Expo-
sure to carbon monoxide can kill you in minutes.
fNEVER operate the machine inside an enclosed area, such as a tunnel, unless
adequate ventilation is provided through such items as exhaust fans or hoses.

Safety Information RD 12A
14 wc_si000516gb.fm
1.4 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.
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).
1.4.1 Some service procedures require that the machine’s battery be
disconnected. To reduce the risk of personal injury, read and understand
the service procedures before performing any service to the machine.
1.4.2 All adjustments and repairs MUST be completed before operation. Do not
operate the machine with a known problem or deficiency! All repairs and
adjustments should be completed by a qualified technician.
1.4.3 Do not attempt to clean or service the machine while it is running. Rotating
parts can cause severe injury.
1.4.4 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.
1.4.5 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.
1.4.6 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.
1.4.7 Do not modify the machine without the express written approval of the
manufacturer.
1.4.8 DO NOT stand under the machine while it is being hoisted or moved.
1.4.9 DO NOT get onto the machine while it is being hoisted or moved.
1.4.10 DO NOT use the machine as a ladder. Use safe ladders and platforms
designed for this purpose.
1.4.11 DO NOT modify, weld, or drill safety frames (ROPS) fitted as original
equipment. DO NOT loosen or remove bolts. DO NOT weld, drill or modify
a broken safety frame.
WARNING

RD 12A Safety Information
wc_si000516gb.fm 15
1.4.12 DO NOT open the hydraulic lines or loosen the hydraulic connections
while the engine is running! Before dismantling the hydraulic connectors
or hoses, ensure that all pressure has been bled from the circuit. Hydraulic
fluid under pressure can penetrate the skin, cause burns, blind, or create
other personal injury hazards. Set all controls in neutral, turn engine off,
and allow the fluids to cool before loosening hydraulic fittings or attaching
test gauges.
1.4.13 ALWAYS check all external fasteners at regular intervals.
1.4.14 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.
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.
1.4.15 Disconnect the spark plug on machines equipped with gasoline engines,
before servicing, to avoid accidental start-up.
1.4.16 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.
1.4.17 ALWAYS do periodic maintenance as recommended in the Operator’s
Manual.
1.4.18 ALWAYS turn the engine off before performing maintenance or making
repairs.
1.4.19 ALWAYS keep hands, feet and loose clothing away from moving parts.
1.4.20 ALWAYS make sure slings, chains, hooks, ramps, jacks, and other types
of lifting devices are attached securely and have enough weight-bearing
capacity to lift or hold the machine safely. Always remain aware of the
location of other people in the area when lifting the machine.
1.4.21 Always make sure hose connections have been reconnected back to the
correct fitting. Failure to do so may result in damage to the machine and/
or injury to person on or near the machine.
1.4.22 ALWAYS secure the articulated steering joint using the locking bar before
lifting, jacking, and servicing the machine. The machine halves could
swing together unexpectedly and cause a serious injury.
1.4.23 ALWAYS lock the lifting cylinders in the open position when the seat
pedestal is raised.
1.4.24 Before you start the machine, ensure that all tools have been removed
from the machine and that replacement parts and adjusters are firmly
tightened.
1.4.25 Fluid leaks from small holes are often practically invisible. DO NOT use
your bare hands to check for leaks. Check for leaks using a piece of
cardboard or wood.

Labels RD 12A
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2Labels
2.1 Label Locations
X
FF
GG
GG

RD 12A Labels
wc_si000302gb.fm 17
2.2 Label Meanings
Wacker Neuson machines use international pictorial labels where
needed. These labels are described below.
AWARNING!
Read and understand the supplied Operator’s
Manual before operating the machine. Failure to
do so increases the risk of injury to yourself and
others.
BDANGER!
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.
CTie-down point.
ECAUTION!
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.
FWARNING!
Pinch point.

Labels RD 12A
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GWARNING!
Hot surface!
HWARNING!
Hot surface!
IHydraulic oil reservoir fill tube.
Torque nuts to 13.6-14.7 Nm (120-130 in.lbs.)
maximum.
JCAUTION
Lifting point.
KWARNING!
To prevent hearing loss, wear hearing protection
when operating this machine.
MWARNING!
Disconnect battery before servicing.
Read Repair Manual for instructions.
Battery contains caustic acid and
potentially explosive hydrogen gas.
NWARNING!
Always wear seat belt when operating roller.
TChoke:
0 = Open
l = Closed

RD 12A Labels
wc_si000302gb.fm 19
UGrease points: Inspect and lubricate every 100
hours of operation.
VWARNING!
Avoid crushing area.
Articulated steering joint locking location. Lock
the articulated steering joint before servicing the
machine.
Read Repair Manual.
WEngine will stop without operator seated.
XGuaranteed sound power level in dB(A).
YA 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.
ZNo lift point.

Labels RD 12A
20 wc_si000302gb.fm
CC CAUTION! Electric shock hazard at
auxiliary battery positive terminal. Never
touch this terminal and a metal portion of
the machine simultaneously.
DD WARNING!
Read and understand the supplied Operator’s
Manual before operating the machine. Failure to
do so increases the risk of injury to yourself and
others.
EE Water tank fill.
FF This machine may be covered by one or more
patents.
GG WARNING!
Avoid crushing area.
AND