Wacker Neuson RD 27-100, RD 27-120 Operator's Manual

Operator’s Manual

Roller

RD 27-100

RD 27-120

0171754en 003 1109

0171754EN

Copyright
notice

© Copyright 2009 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

Manufacturer

Translated
instructions

All trademarks referenced in this manual are the property of their respective owners.

Wacker Neuson Corporation
N92W15000 Anthony Avenue
Menomonee Falls, WI 53051 U.S.A.
Tel: [phone] · Fax: [phone] · Tel: [phone]

www.wackerneuson.com

This Operator’s Manual presents a translation of the original instructions. The original
language of this Operator’s Manual is American English.

RD 27 Foreword

Foreword

Machines
covered in
this manual

Machine Item Number

RD 27-100 0620393

0620395
0620508
0620510
0620512

RD 27-120 0620396

0620394
0620509
0620511
0620513

Machine
documentation

Expectations
for
information in
this manual

 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.

 This manual provides information and procedures to safely operate and main-

tain 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.

Copyright
notice

 All rights, especially copying and distribution rights, are reserved.
 Copyright 2009 by Wacker Neuson Corporation.
 This publication may be reproduced through photocopying by the original pur-

chaser 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 Cor-

poration represents an infringement of valid copyrights, and violators will be
prosecuted.

wc_tx000836gb.fm 3

Foreword RD 27

CALIFORNIA
Proposition
65 Warning:

Laws
pertaining to
spark
arresters

Trademarks

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.

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.

All trademarks referenced in this manual are the property of their respective own­ers.

4 wc_tx000836gb.fm

RD 27 Table of Contents

Foreword 3

1 Safety Information 9

1.1 Signal Words Found in this Manual ...................................................... 9

1.2 Machine Description and Intended Use ............................................. 10

1.3 Safety Guidelines for Operating the Machine ..................................... 11

1.4 Safety Guidelines while Using Internal Combustion Engines ............. 13

1.5 Guidelines for Service Safety ............................................................. 14

2 Labels 16

2.1 Label Locations .................................................................................. 16

2.2 Safety and Warning Labels ................................................................ 17

2.3 Informational Labels ........................................................................... 20

3 Lifting and Transporting 23

3.1 Lifting the Machine ............................................................................. 23

3.2 Tying Down/Transporting the Machine ............................................... 24

4 Operation 25

4.1 Preparing the Machine for First Use ................................................... 25

4.2 Position of the Operator ..................................................................... 25

4.3 Operation & Maintenance Locations .................................................. 26

4.4 Unlocking/Locking the Articulated Joint .............................................. 28

4.5 Using the Roll Over Protection Structure (ROPS) .............................. 29

4.6 Installing the Rotating Beacon ............................................................ 30

4.7 Using the Seat Belt ............................................................................. 31

4.8 Adjusting the Seat .............................................................................. 32

4.9 Adjusting the Steering Column ........................................................... 33

4.10 Positioning the Scraper Bars .............................................................. 33

4.11 Using the Anti-Vandalism Protection Devices .................................... 34

4.12 Using the Water Spray System .......................................................... 35

4.13 Using the Forward/Reverse Lever ...................................................... 36

4.14 Backup Alarm ..................................................................................... 37

4.15 Using the Flow Divider (if equipped) .................................................. 38

4.16 Using the Vibration System ................................................................ 39

4.17 Using the Parking Brakes ................................................................... 40

4.18 Warning Lights ................................................................................... 41

4.19 Using the Lights and Horn .................................................................. 42

4.20 Machine Stability ................................................................................ 43

4.21 Operating on Slopes ........................................................................... 44

wc_bo0171754en_003TOC.fm 5

Table of Contents RD 27

4.22 Preliminary Checks .............................................................................45

4.23 Mounting and Dismounting the Machine .............................................45

4.24 Starting the Engine ..............................................................................46

4.25 Stopping the Engine ............................................................................47

4.26 Understanding the Operator Present System .....................................48

4.27 Emergency Shutdown Procedure ........................................................48

5 Maintenance 50

5.1 Periodic Maintenance Schedule ..........................................................50

5.2 Major Component Locations ...............................................................52

5.3 Major Components ..............................................................................53

5.4 Safety-Related Spare Parts .................................................................54

5.5 Maintaining the Seat and Seat Belt .....................................................59

5.6 Checking the Air Filter Indicator ..........................................................60

5.7 Cleaning the Air Cleaner and Primary Air Filter Element ....................61

5.8 Changing the Air Filter Elements .........................................................62

5.9 Testing the Backup Alarm ...................................................................63

5.10 Checking the Engine Coolant Level ....................................................64

5.11 Checking the Engine Oil ......................................................................65

5.12 Checking Hydraulic Oil Level ..............................................................66

5.13 Checking the Neutral Switch ...............................................................67

5.14 Adjusting the Scraper Bars ..................................................................68

5.15 Inspecting the Seat Belt ......................................................................69

5.16 Cleaning the Water Spray Nozzles .....................................................70

5.17 Cleaning the Water Spray System Filter .............................................71

5.18 Cleaning and Changing the Fuel Filter/Water Separator ....................72

5.19 Priming the Fuel System .....................................................................73

5.20 Draining Water and Sediment from the Fuel Tank ..............................74

5.21 Cleaning the Water Tank Strainer .......................................................75

5.22 Adjusting Alternator Belt Tension ........................................................76

5.23 Lubricating the Articulated Steering Joint ............................................77

5.24 Lubricating the Steering Cylinder ........................................................78

5.25 Testing the Brake System ...................................................................79

5.26 Changing the Engine Oil and Filter .....................................................80

5.27 Cleaning the Fuel Tank Cap and Fuel Strainer ...................................81

5.28 Changing the Hydraulic Oil Filter .........................................................82

5.29 Cleaning the Hydraulic Oil Cooler .......................................................83

5.30 Disconnecting/Connecting the Battery ................................................84

5.31 Adjusting the Forward/Reverse Lever .................................................85

5.32 Changing the Hydraulic Oil ..................................................................86

5.33 Checking and Cleaning the Hydraulic Tank Breather .........................87

6 wc_bo0171754en_003TOC.fm

RD 27 Table of Contents

5.34 Cleaning the Hydraulic Oil Strainer .................................................... 88

5.35 Cleaning the Radiator Filler Cap ........................................................ 89

5.36 Checking the Engine Water Pump ..................................................... 90

5.37 Changing the Cooling System Coolant .............................................. 91

5.38 Replacing the Water Temperature Regulator ..................................... 93

5.39 Draining the Water Spray System ...................................................... 94

5.40 Towing the Machine ........................................................................... 95

5.41 Manually Releasing the Parking Brakes ............................................. 97

5.42 Troubleshooting .................................................................................. 98

6 Schematics 100

6.1 Electrical Schematic ......................................................................... 100

6.2 Hydraulic Schematic ......................................................................... 106

7 Technical Data 110

7.1 Engine .............................................................................................. 110

7.2 Roller ................................................................................................ 111

7.3 Lubrication ........................................................................................ 111

7.4 Sound Measurements ...................................................................... 112

7.5 Measurements of Operator Exposure to Vibration ........................... 112

7.6 Dimensions ....................................................................................... 113

wc_bo0171754en_003TOC.fm 7

Table of Contents RD 27

8 wc_bo0171754en_003TOC.fm

RD 27 Safety Information

1 Safety Information

1.1 Signal Words Found in this Manual

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 hazards.
f Obey all safety messages that follow this symbol.

DANGER

DANGER indicates a hazardous situation which, if not avoided, will result in death
or serious injury.

f To avoid death or serious injury from this type of hazard, obey all safety mes-

sages that follow this signal word.

WARNING

WARNING indicates a hazardous situation which, if not avoided, could result in
death or serious injury.

f To avoid possible death or serious injury from this type of hazard, obey all safety

messages that follow this signal word.

CAUTION

CAUTION indicates a hazardous situation which, if not avoided, could result in
minor or moderate injury.

f To avoid possible minor or moderate injury from this type of hazard, obey all

safety messages that follow this signal word.

NOTICE: Used without the safety alert symbol, NOTICE indicates a situation
which, if not avoided, could result in property damage.

Note: A Note contains additional information important to a procedure.

wc_si000247gb.fm 9

Safety Information RD 27

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
 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.

10 wc_si000247gb.fm

RD 27 Safety Information

1.3 Safety Guidelines for Operating the Machine

Operator
qualifications

Personal
Protective
Equipment
(PPE)

Operator
training

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

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

Before operating the machine:

 Read and understand the operating instructions contained in all manuals

delivered with the machine.

 Familiarize yourself with the location and proper use of all controls and safety

devices.

 Contact Wacker Neuson Corporation for additional training if necessary.

Machine’s
safety devices

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.

 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.

 Check that all controls are functioning properly immediately after start-up!

To ensure safe operation of the machine:

 Do not operate the machine if any safety devices or guards are missing or

inoperative.

 Do not operate the machine unless all controls operate correctly.
 Do not modify or defeat safety devices.
 Do not use accessories or attachments that are not recommended by Wacker

Neuson. Damage to equipment and injury to the user or others may result.

wc_si000247gb.fm 11

Safety Information RD 27

Safe
operating
practices

When operating this machine:

 Always remain seated and wear the seat belt at all times while operating the

machine.

 Remain aware of changing positions and the movement of other equipment and

personnel on the job site.

 Be 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.

 Remain aware of changing surface conditions, for example, uneven ground,

hills, trench edges, soft or coarse material. Be sure that the surface is stable
enough to support the weight of the machine and that there is no chance of the
machine sliding, falling, or tipping.

 Remain aware of the machine’s moving parts. Keep hands, feet, and loose

clothing away from the machine’s moving parts.

 Wear protective clothing appropriate to the job site when operating the machine.
 Wear safety glasses when operating this machine.
 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.

When operating this machine:

 Do not drive off curbs or other uneven surfaces that will result in jarring impacts

to the machine and operator.

 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.

 Do not allow anyone to ride on any part of the machine. Passengers can be

seriously injured or killed from falls, tip-overs, or roll-over incidents.

 Do not leave the machine running unattended.
 Do not operate a machine in need of repair.
 Do not attempt to start the machine while standing alongside it. Only start the

engine when seated in the driver’s seat and with the forward/reverse control in
the neutral position.

 Do not operate a machine when its fuel cap is loose or missing.
 Do not use a cellphone or send text messages while operating this machine.
 Do not operate the machine with unapproved accessories or attachments.
 Do not transport the machine while it is running.

12 wc_si000247gb.fm

RD 27 Safety Information

1.4 Safety Guidelines while Using Internal Combustion Engines

WARNING

Internal combustion engines present special hazards during operation and fueling.
Failure to follow the warnings and safety standards could result in severe injury or death.
f Read and follow the warning instructions in the engine owner’s manual and the

safety guidelines below.

DANGER

Exhaust gas from the engine contains carbon monoxide, a deadly poison.
Exposure to carbon monoxide can kill you in minutes.

f NEVER operate the machine inside an enclosed area, such as a tunnel, unless

adequate ventilation is provided through such items as exhaust fans or hoses.

Operating
safety

Refueling
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.

 Do not remove the radiator cap when the engine is running or hot. The radiator

fluid is hot and under pressure and may cause severe burns!

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.

wc_si000247gb.fm 13

Safety Information RD 27

1.5 Guidelines for Service Safety

WARNING

A poorly maintained ained 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.

f ALWAYS do periodic maintenance as recommended in the Operator’s Manual.

Personal
Protective
Equipment
(PPE)

Precautions

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).

 To reduce the risk of personal injury, read and understand the service

procedures before performing any service to the machine.

 Some service procedures require that the machine’s battery be disconnected.
 All adjustments and repairs MUST be completed before operation. NEVER

operate the machine with a known problem or deficiency! All repairs and
adjustments should be completed by a qualified technician.

 Stop the engine before servicing the machine. If the engine has electric start,

disconnect the negative terminal on the battery.

 Secure the articulated steering joint using the locking bar before lifting, jacking,

and servicing the machine. Machine halves could swing together unexpectedly
and cause a serious injury.

Accessories,
safety
devices, and
modifications

Replacing
parts and
labels



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.



Do not modify the machine without the express written approval of the manufacturer.

 Replace worn or damaged 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.

 Never use or attempt to repair a damaged safety belt or ROPS. Replace these

components before operating the machine.

 Replace all missing and hard-to-read labels. Labels provide important operating

instructions and warn of dangers and hazards.

 Check all external fasteners at regular intervals.

14 wc_si000247gb.fm

RD 27 Safety Information

Lifting and
transporting

Cleaning and
servicing the
machine

When lifting the machine:

 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.

 Remain aware of the location of other people when lifting the machine.

To reduce the possibility of injury:

 Do not stand under the machine while it is being hoisted or moved.
 Do not get onto the machine while it is being hoisted or moved.

While cleaning or servicing the machine:

 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.

 Keep the machine clean and labels legible.
 Keep hands, feet, and loose clothing away from moving parts.

While cleaning or servicing the machine:

 Do not remove air cleaner cover, paper element, or precleaner while engine is

running.

 Do not attempt to open the radiator cap while the machine is running or before

the engine has cooled down. Severe burns may result!

 Do not attempt to clean or service the machine while it is running. Rotating parts

can cause severe injury.

 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.

 Do not tip the machine for cleaning or for any other reason.

WARNING

Possibility of injury. Hydraulic fluid under pressure can penetrate the skin, cause
burns, blind, or create other potentially dangerous hazards.
f Set all controls to neutral, turn the engine off, and allow fluids to cool before

loosening hydraulic fittings or attaching test gauges.

f Do not open hydraulic lines or loosen hydraulic connections when the engine is

running.

f Before dismantling hydraulic connectors or hoses, ensure that all pressure has

been bled from the circuit.

f 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.

f Always make sure hose connections have been reconnected back to the cor-

rect fitting. Failure to do so may result in damage to the machine and/or injury to
person on or near the machine.

 Always replace safety devices and guards after completing repairs and

maintenance.

 Before you start the machine, ensure that all tools have been removed from the

machine and that replacement parts and adjusters are firmly tightened.

wc_si000247gb.fm 15

Labels RD 27

2 Labels

2.1 Label Locations

v

n

q

g

o

i

g

k

b

x

v

n

s

p

w

d

u

a

k

f

d

c

g

g

h

r

m

j

f

t

l

d

g

f

wc_gr005053

16 wc_si000393gb.fm

RD 27 Labels

STOP

2.2 Safety and Warning Labels

Ref. Label Definition

b DANGER!

Read and understand the supplied
Operator's Manuals before operating this
machine. Failure to do so increases the risk
of injury to yourself and others.

Do not run the machine indoors or in an
enclosed area without adequate ventilation.
Engine exhaust contains carbon monoxide.
This is a poison you cannot see or smell.
Exposure to carbon monoxide can cause
loss of consciousness and CAN KILL YOU IN
MINUTES.

To reduce the risk of hearing loss, wear hear­ing protection when operating this machine.

Always wear seat belt when operating the
machine.

Never operate the machine sideways on
slopes.

c DANGER!

Asphyxiation hazard. Do not run the machine
indoors or in an enclosed area without ade­quate ventilation. Read the Operator’s Man­ual for instructions. No sparks, flames, or
burning objects near machine. Stop the
engine before adding fuel. Use only diesel
fuel.

0178715

dCAUTION

Lifting point.

wc_si000393gb.fm 17

Labels RD 27

Ref. Label Definition

f WARNING!

Avoid crushing area.

h WARNING!

Disconnect battery before servicing.
Read Repair Manual.
Explosion hazard. Batteries can emit explo­sive hydrogen gas. Keep all sparks and
flames away from the battery.

lWARNING!

Pinching hazard. Rotating machinery.

m WARNING!

Pressurized contents. Do not open when hot!

18 wc_si000393gb.fm

RD 27 Labels

Ref. Label Definition

n WARNING!

Avoid crushing area.

s WARNING!

Do not drill or weld the ROPS.
Read the Operator’s Manual.

t WARNING!

Avoid crushing area.
Articulated steering joint locking location.
Lock the articulated steering joint before ser­vicing the machine.
Read Repair Manual.

wc_si000393gb.fm 19

Labels RD 27

2.3 Informational Labels

Ref. Label Definition

a Operator’s Manual must be stored on

O P E R A T O R ' S M A N U A L M U S T B E
S T O R E D O N M A C H I N E .
R E P L A C E M E N T O P E R A T O R ' S
M A N U A L C A N B E O R D E R E D

L O C A L W A C K E R

T H R O U G H Y O U R
D I S T R I B U T O R .

D I E B E T R I E B S V O R S C H R I F T M U S S
A N D E R M A S C H I N E A U F B E W A H R T
W E R D E N . Z U R B E S T E L L U
E R S A T Z B Ü C H E R N W E N D E N S I E
S I C H B I T T E A N I H R E N
Ö R T L I C H E N W A C K E R H Ä N D L E R .

N G V O N

E L M A N U A L D E O P E R A C I O N D E B E
S E R R E T E N I D O E N L A M A Q U I N A .
C O N T A C T E A S U D I S T R I B U I D O R
W A C K E R M A S C E R C A N O P
P E D I R U N E J E M P L A R
A D I C I O N A L .

L A N O T I C E D ' E M P L O I D O I T
E T R E M U N I E S U R L A M A C H I N E .
C O N T A C T E R L E D I S T R I
W A C K E R L E P L U S P R O C H E
P O U R C O M M A N D E R U N
E X E M P L A I R E S U P P L E M E N T A I R E .

B U T E U R

A R A

machine. Replacement Operator’s Manual
can be ordered through your local Wacker
Neuson distributor.

1 1 5 0 9 6

e A nameplate listing the model number, item

number, revision number, and serial number
is attached to each unit. Please record the
information found on this plate so it will be
available should the nameplate become lost
or damaged. When ordering parts or
requesting service information, you will
always be asked to specify the model num­ber, item number, revision number, and serial
number of the unit.

g Tie-down point.

i Hydraulic oil drain.

HYDRAULIC OIL
HYDRAULIKÖL
ACEITE HIDRÁULICO
HUILE HYDRAULIQUE

j Hydraulic oil reservoir fill.

20 wc_si000393gb.fm

RD 27 Labels

Ref. Label Definition

k Water tank fill.

o Engine oil drain.

ENGINE OIL
MOTOROEL
ACEITE DE MOTOR
HUILE À MOTEURS

p Key switch positions.

STOP

Power to glowplugs.
Engine stopped (OFF).
Engine ON.
Power to starter motor.

q Throttle lever positions.

High speed.
Low speed.

wc_si000393gb.fm 21

Labels RD 27

Ref. Label Definition

r Vibration activation and deactivation switch.

Forward/reverse lever positions.

u Fuse identifications.

v Tighten screw to reduce vibration.

1

2

Read Operator’s Manual.

wc_gr002757

w Guaranteed sound power level in dB(A).

x ROPS certification label

y Biodegradable hydraulic oil reservoir fill

(if equipped)

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RD 27 Lifting and Transporting

3 Lifting and Transporting

3.1 Lifting the Machine

Prerequisites

Procedure

 Lifting equipment (crane or hoist) capable of supporting 2722 kgs. (6000 lbs.)
 Four lifting hooks and chains capable of supporting 2722 kgs. (6000 lbs.)

WARNING

Crushing hazard. You may be crushed if the lifting devices fail.

f Never stand under, or get onto, the machine while it is being lifted or moved.
f Use only the designated lifting points to lift the machine.

Follow the procedure below to lift the machine.

1. Stop the engine.

2. Engage the parking brake.

3. Lock the articulated steering joint (a).

4. Attach one lifting chain to each of the four lifting eyes (b) on the machine (two
per side) using hooks or shackles.

5. Attach the other end of the chains to the lifting equipment.

6. Lift the machine as necessary.

CAUTION

Crushing / machine damage hazards. The Roll Over Protection Structure (ROPS)
(c) is intended strictly to protect the operator during a rollover or tip-over incident.
The ROPS must not be used to lift the machine.
f Use only the designated lifting eyes to lift the machine.

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Lifting and Transporting RD 27

3.2 Tying Down/Transporting the Machine

Prerequisites

Procedure

 Engine shut down
 Parking brake ON

Follow the procedure below to tie down the machine.

1. Make sure that the transport vehicle is capable of handling the weight and size
of the machine. See Technical Data for dimensions and operating weight.

2. Lock the articulated steering joint (a).

c

wc_gr004992

3. Attach steel ropes or chains to each of the four tie down eyes (b) on the
machine (two per side) and the two tie down bars (c) on the front and rear of the
machine.

c

4. Attach the other end of the chains to an appropriate vehicle capable of handling
the weight of the machine.

Note: The transmission is normally braked when the diesel engine is off, or when
the hydraulic system is not functioning, unless there is a fault and/or the parking
brakes have been manually disabled.

NOTICE: Do not position ropes or chains across the machine frame or the articu­lated joint when tying down the machine. Damage to the machine may occur.

NOTICE: Do not completely compress the shock mounts when tying down the
machine. Damage to the shock mounts may occur.

NOTICE: Do not leave the machine tied down for extended periods of time (except
when transporting). Damage to the shock mounts may occur.

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RD 27 Operation

4 Operation

4.1 Preparing the Machine for First Use

Preparing for
first use

To prepare your 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. Add fluids as needed, including fuel, engine oil, and battery acid.

6. Move the machine to its operating location.

4.2 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:

 be seated in the operator’s seat facing forward
 wear the seat belt, properly adjusted and latched
 have both feet on the control deck
 have one hand on the steering wheel at all times
 have the other hand free to operate the controls as needed

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Operation RD 27

4.3 Operation & Maintenance Locations

Ref. Description Ref. Description

a Throttle lever l Vibration mode switch

b Ignition key block m Vibration ON/OFF switch

c Alternator warning light n Water pump switch

d Engine oil pressure warning light o Engine temperature warning light

e Hydraulic oil temperature warn-

ing light

f Forward-reverse lever q Turn signal switch

g Horn r Flashers ON warning light

h Parking brake warning light and

control

i Vibration-on warning light t Flow divider switch (if equipped)

j Light switch u Turn signal indicator

k Fuse box v Lights ON indicator

-- -- w Light switch

p Hour meter

s Flasher activation switch

Ref. Description Ref. Description

1 Diesel engine 7 Front exciter hydraulic motor

2 Hydraulic transmission pump 8 Rear hydraulic transmission

motor

3 Front hydraulic transmission

motor

4 Rear exciter hydraulic motor 10 Brake

5 Exciter hydraulic pump 11 Oil cooler

6 Steering hydraulic pump 12 Electric water pump

9 Servo steering

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RD 27 Operation

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rwq iu s c hode

p

n l g j

b

a

9

t

1

11

7

10

3 10

2

k

m

12

6

5

10

f

4

10

8

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wc_tx000814gb.fm 27

Operation RD 27

4.4 Unlocking/Locking the Articulated Joint

Locking

Unlocking

Install the articulated steering joint pin in the LOCKED position (a) before you lift
the machine, transport the machine, or perform maintenance near the center of the
machine.

Install the articulated steering joint pin in the UNLOCKED position (b) before you
operate the machine.

NOTICE: Attempting to steer the machine with the articulated steering joint pin in
the locked position may destroy the steering cylinder and locking mechanism.

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RD 27 Operation

4.5 Using the Roll Over Protection Structure (ROPS)

Background

Positioning

The machine is equipped with a Roll Over Protection Structure (ROPS). The ROPS
is designed to protect the operator in a rollover accident.

WARNING

Crushing hazard. You may be crushed if the machine rolls over.
f Never use the machine without the ROPS in place.

Follow the procedure below to position the ROPS in the upright position.

1. Support the ROPS (a) using a crane and suitable rigging capable of supporting
70 kg (155 lbs.).

2. Remove the safety pin (b) and pull out the locking pin (c).

3. Lift the ROPS into the upright position.

4. Insert the locking pin and secure it with the safety pin.

5. Tighten the adjusting screw (d) as needed to reduce vibration.

Keep the ROPS in the extended (upright) position when using the roller.

WARNING

Crushing / machine damage hazards. The ROPS is intended strictly to protect the
operator during a rollover or tip-over incident and must not be used to lift the
machine.

f Use only the designated lifting eyes to lift the machine. See Lifting the Machine.

WARNING

Personal injury hazard. The ROPS is not a handhold for passengers. Passengers
can be seriously injured or killed from falls, tip-overs, or roll-over incidents.

f Do not allow anyone to ride on any part of the machine.

wc_tx000814gb.fm 29

Operation RD 27

Checking

Rules for re­installing

Each month, check:

 the torque on all of the screws holding the ROPS in place
 the ROPS frame for rust, cracks, and any other damage

When reinstalling the ROPS:

 Use the original nuts and bolts.
 Use oil to lubricate the bolts before installing the ROPS.
 Tighten the bolts to the specified torques.

NOTICE: Do not weld or drill into the ROPS. Drilling or welding on the ROPS will
nullify the ROPS certification.

4.6 Installing the Rotating Beacon

Background

The rotating beacon illuminates and rotates when the key switch is in the ON
position.

Procedure

Follow the procedure below to install the beacon.

1. Thread the power wire (c) through the light staff and fix it to the upper connector.

a

d

b

c

wc_gr004731

2. Insert the connector into the light staff.

3. Insert the light staff assembly (a) into the left side of the machine ROPS and
tighten the set screw (b).

4. Slide the rotating beacon (d) onto the light staff.

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