Wacker Neuson RD 7 Series, RD 7H-ES, RD 7H, RD 7-RAW, RD 7H-S Operator's Manual

Operator’s Manual

Notice d’Emploi

Roller

Rouleau

RD 7

5000185489 17 0911

5000185489

Copyright
notice

© Copyright 2011 by Wacker Neuson Production Americas LLC
All rights, including copying and distribution rights, are reserved.
This publication may be photocopied by the original purchaser of the machine. Any

other type of reproduction is prohibited without express written permission from
Wacker Neuson Production Americas LLC.

Any type of reproduction or distribution not authorized by Wacker Neuson Production
Americas LLC represents an infringement of valid copyrights. Violators will be
prosecuted.

Trademarks

Manufacturer

Original
instructions

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

Wacker Neuson Production Americas LLC
N92W15000 Anthony Avenue
Menomonee Falls, WI 53051 U.S.A.
Tel: [phone] · Fax: [phone] · Tel: [phone]
www.wackerneuson.com

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

5000185465 17 0911

RD 7 Foreword

Foreword

Machines
covered in
this manual

Machine Item Number

RD 7H 0008042
RD 7H-ES 0009408, 0620794
RD 7H-S 0009487, 0620795
RD 7-RAW 0620079, 0620478, 0620596

Machine
documentation

Expectations
for
information in
this manual

 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.
 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 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

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.

CALIFORNIA
Proposition
65 Warning

Laws
pertaining to
spark
arresters

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.

wc_tx001345gb.fm 3

Foreword RD 7

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.

4 wc_tx001345gb.fm

EC Declaration of Conformity

Manufacturer

Wacker Neuson Production Americas LLC, N92W15000 Anthony Avenue,
Menomonee Falls, Wisconsin USA

Product

Product

Product category

Product function

Item number

Net installed power

Measured sound power level

Guaranteed sound power level

RD 7H-ES, RD 7H-S

Vibrating Walk-Behind Rollers

To compact asphalt

0620794, 0620795

5,1 kW

107 dB(A)

108 dB(A)

Conformity Assessment Procedure

According to ANNEX VIII

Notified Body

Lloyds Register Quality Assurance Limited (Notified Body No 0088)
71 Fenchurch Street, London EC3M 4BS, United Kingdom

Guidelines and Standards

We hereby declare that this product meets and complies with the relevant regulations and
requirements of the following guidelines and standards:

2011-CE-RD7H_en.fm

2006/42/EC, 2000/14/EC, 2004/108/EC, EN 500-1, EN 500-4

Authorized Person for Technical Documents

Axel Häret, Wacker Neuson SE, Preußenstraße 41, 80809 München

Menomonee Falls, WI, USA, 22.08.2011

William Lahner
Vice President of Engineering

Paul Sina
Manager, Product Engineering

Original Declaration of Conformity

Table of ContentsRD 7

Foreword 3

EC Declaration of Conformity 5

1 Safety Information 9

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

1.2 Machine Description and Intended use .............................................. 10

1.3 Operating Safety ................................................................................ 11

1.4 Operator Safety While Using Internal Combustion Engines ............... 13

1.5 Service Safety .................................................................................... 14

2 Labels 16

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

2.2 Safety and Informational Labels ......................................................... 17

3 Lifting and Transporting 22

4 Operation 23

4.1 Preparing the Machine for First Use ................................................... 23

4.2 Controls and Service Locations .......................................................... 24

4.3 Position of the Operator ..................................................................... 25

4.4 Refueling the Machine ........................................................................ 26

4.5 Before Starting ................................................................................... 27

4.6 Engine Throttle Control ...................................................................... 27

4.7 Starting the Machine (RD 7H, RD 7H-S) ............................................ 28

4.8 Starting the Machine (RD 7H-ES) ...................................................... 29

4.9 Cold Weather Starting (RD 7H, RD 7H-S) ......................................... 30

4.10 Engine Speed ..................................................................................... 31

4.11 Stopping the Machine ......................................................................... 31

4.12 Direction and Speed Control .............................................................. 32

4.13 Exciter ................................................................................................ 32

4.14 Back-Up Stop Pad .............................................................................. 33

4.15 Engine Crank ...................................................................................... 33

4.16 Parking Brake ..................................................................................... 34

4.17 Watering System ................................................................................ 34

4.18 Machine Stability ................................................................................ 35

4.19 Operation on Slopes ........................................................................... 36

4.20 Rollovers ............................................................................................ 36

4.21 Emergency Shutdown Procedure ....................................................... 37

wc_bo5000185465_17TOC.fm 7

Table of Contents RD 7

5 Maintenance 38

5.1 Maintenance Schedule ........................................................................38

5.2 Safety-Related Spare Parts .................................................................39

5.3 Checking Engine Oil ............................................................................41

5.4 Changing Engine Oil and Oil Filter ......................................................42

5.5 Fuel System ........................................................................................43

5.6 Engine Air Filter ...................................................................................45

5.7 Checking and Adjusting Valve Clearances .........................................46

5.8 Engine Cooling System .......................................................................47

5.9 Mechanical Oil Pressure Monitoring ....................................................48

5.10 Scraper Bars .......................................................................................49

5.11 Water Spray Bars ................................................................................50

5.12 Hydraulic Oil Requirements .................................................................51

5.13 Hydraulic Oil Level ..............................................................................52

5.14 Changing Hydraulic Fluid and Filter ....................................................53

5.15 Direction Lever Adjustment .................................................................54

5.16 Pressure Washing the Machine ..........................................................56

5.17 Storing the Machine ............................................................................56

6 Troubleshooting 57

7 Technical Data 58

7.1 Engine .................................................................................................58

7.2 Roller ...................................................................................................59

7.3 Lubrication ...........................................................................................59

7.4 Sound and Vibration Measurements ...................................................60

8 AEM Safety Manual 61

9 Schematics 88

9.1 Hydraulic Schematic ............................................................................88

9.2 Hydraulic Schematic Components ......................................................89

9.3 Hydraulic Diagram ...............................................................................90

9.4 Hydraulic Diagram Components .........................................................91

9.5 RD 7H ES—Electrical Schematic ........................................................92

9.6 RD 7H-ES—Electrical Schematic Components ..................................93

8 wc_bo5000185465_17TOC.fm

RD 7 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.

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 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 mes-

f

sages 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_si000115gb.fm 9

Safety Information RD 7

1.2 Machine Description and Intended use

This machine is a dual drum vibratory walk-behind roller. The Wacker
Neuson Walk-Behind Roller consists of an upper frame to which are
mounted a diesel engine, a hydraulic tank, a water tank, and a
hydrostatic drive system, and a lower frame which supports two steel
drums, an exciter assembly, and a handle. The engine powers the
hydraulics that provide machine movement and drum vibration. The
vibrating drums smooth and compact the work surface as the
machine moves. The operator uses the handle to control machine
speed and direction.

This machine is intended to be used for compacting sand, gravel, soil,
and asphalt on roadways, walkways, bridges, and parking lots.

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 or operating tech­niques

10 wc_si000115gb.fm

RD 7 Safety Information

To protect yourself and others, make sure you thoroughly read and
understand the safety information presented in this manual before
operating the machine.

1.3 Operating Safety

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

WARNING

Operator qualifications

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.

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

Contact Wacker Neuson for additional training if necessary.

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

1.3.1 ALWAYS operate the machine with both of your feet on the ground! DO NOT
stand, sit, or ride on machine while in operation.

1.3.2 Always operate machine with all safety devices and guards in place and in
working order. Do not modify or defeat safety devices. Do not operate machine
if any safety devices or guards are missing or inoperative.

1.3.3 ALWAYS check that all controls are functioning properly immediately after
start-up! DO NOT operate the machine unless all controls operate correctly.

1.3.4 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.

wc_si000115gb.fm 11

Safety Information RD 7

1.3.5 ALWAYS use caution when operating near the edges of pits, trenches or
platforms. Check to be sure that the ground surface is stable enough to
support the weight of the machine with the operator and that there is no danger
of the roller sliding, falling, or tipping.

1.3.6 ALWAYS position yourself safely when operating machine in reverse or on
hills. Leave enough space between yourself and the machine so you will not
be placed in a hazardous position should the machine slide or tip.

1.3.7 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.

1.3.8 ALWAYS remain aware of moving parts and keep hands, feet, and loose
clothing away from the moving parts of the machine.

1.3.9 ALWAYS remain aware of changing positions and the movement of other
equipment and personnel on the job site.

Do not use a cellphone or send text messages while operating this
machine.

Do not subject the roller to jarring impacts by driving it off curbs or off
the back of a truck or trailer.

1.3.10 NEVER operate the machine with the fuel cap loose or missing.
Do not operate the machine with unapproved accessories or

attachments.
Do not transport the machine while it is running.

1.3.11 Never leave the machine running unattended.

1.3.12 Do not use accessories or attachments that are not recommended by Wacker
Neuson. Damage to equipment and injury to the user may result.

1.3.13 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.

1.3.14 Do not operate a machine in need of service or repair.

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

1.3.16 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.

1.3.17 Do not use a cellphone or send text messages while operating this machine.

12 wc_si000115gb.fm

RD 7 Safety Information

1.4 Operator Safety While Using Internal Combustion Engines

WARNING

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

safety guidelines below.

DANGER

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

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

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.

wc_si000115gb.fm 13

Safety Information RD 7

1.5 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.

WARNING

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).

1.5.1 ALWAYS check all external fasteners at regular intervals.

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

1.5.3 Do not attempt to clean or service the machine while it is running. Rotating
parts can cause severe injury.

1.5.4 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.

1.5.5 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.

1.5.6 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.

1.5.7 ALWAYS turn the engine off before servicing the machine. If the engine has
electric start, disconnect the negative terminal on the battery before servicing
the machine.

1.5.8 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.

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

1.5.10 DO NOT open hydraulic lines or loosen hydraulic connections while the engine
is running! Hydraulic fluid under pressure can penetrate the skin, cause burns,
blind, or create other potentially dangerous hazards. Set all controls in neutral
and turn engine off before loosening the hydraulic lines.

14 wc_si000115gb.fm

RD 7 Safety Information

1.5.11 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.

1.5.12 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.

1.5.13 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.

1.5.14 Before you start the machine, ensure that all tools have been removed from
the machine and that replacement parts and adjusters are firmly tightened.

1.5.15 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.

1.5.16 Keep the machine clean and labels legible. Replace all missing and hard-to­read labels. Labels provide important operating instructions and warn of
dangers and hazards.

1.5.17 ALWAYS replace safety devices and guards after repairs and maintenance.

wc_si000115gb.fm 15

Labels RD 7

2Labels

2.1 Label Locations

O

D

Q

L

V

K

N

L

J

T

C

S

M

A

B, F, U

P

E

G

H

M

SR

16 wc_si000398gb.fm

RD 7 Labels

STOP

2.2 Safety and Informational Labels

Wacker Neuson machines use international pictorial labels where
needed. These labels are described below.

Label Meaning

A DANGER!

Asphyxiation hazard.

Engines emit carbon monoxide.

0178715

Do not run the machine indoors or in an
enclosed area unless adequate
ventilation, through such items as
exhaust fans or hoses, is provided.
Read the Operator’s Manual. No
sparks, flames, or burning objects near
the machine. Stop the engine before
refueling.

B WARNING!

Hot surface

C WARNING!

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.

D WARNING!

To prevent hearing loss, wear hearing
protection when operating the machine.

wc_si000398gb.fm 17

Labels RD 7

Label Meaning

E Guaranteed sound power level in

dB(A).

F CAUTION!

Use only clean, filtered diesel fuel.

L O C A L W A C K 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 IB 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. A replacement Operator’s
Manual can be ordered through your

1 1 5 0 9 6

local Wacker Neuson distributor.

G 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
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 IE
S I C H B IT 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 .

H Water control valve.

J Vibration control ON/OFF.

K NOTICE

No lift point.

18 wc_si000398gb.fm

RD 7 Labels

Label Meaning

L NOTICE

Lifting point.

M Tie-down point.

N Engine oil drain.

O Hydraulic oil reservoir fill tube.

P Hydraulic oil drain.

Q Key switch, engine start:

Off
On
Start

R This machine may be covered by one

or more patents.

wc_si000398gb.fm 19

Labels RD 7

Label Meaning

S 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 nameplate 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.

T

Check engine oil level.
Use SAE10W30.

Check the fuel level.

Engage parking brake.

Turn vibration off.

Pull engine throttle out.

20 wc_si000398gb.fm

RD 7 Labels

Label Meaning

Pull decompression lever up.

Insert crank handle.

Rotate crank handle counterclockwise
5X.

Remove crank handle.

Disengage parking brake.

U Low sulfur fuel or ultra low sulfur fuel

only.

V Parking brake.

wc_si000398gb.fm 21

Lifting and Transporting RD 7

3 Lifting and Transporting

WARNING

Crushing and machine damage hazards. Improper lifting techniques can cause the
machine to fall.

f Observe the safety guidelines below when lifting and transporting the machine.

Lifting

• Attach a sling or chain to the lifting eye

shackle. Each lifting device must have capacity of at least 650 Kg
(1430 lbs).

• Only use steel ropes or chains for hoisting. The rope or chain must

have the suitable specified lifting capacity of 650 Kg (1430 lbs). Do
not use improvised ropes or chains.

NOTICE: Never use any other part of the roller to lift the machine, as

severe damage may occur.

• Do not stand under, or get onto, the machine while it is being hoisted

or moved.

(a)

using a suitable hook or

c

Transporting

Before transporting the machine:

• place blocks in front of and behind each drum.

• use the front and rear tie-downs

• place the lift handle

NOTICE: Only use the tie-downs to secure the machine. Do not use
any other part of the roller to tie the machine down as severe damage
to the machine may occur.

trailer.

(c)

to secure the machine to the

(b)

into the upright position.

22 wc_tx001349gb.fm

RD 7 Operation

4 Operation

4.1 Preparing the Machine for First Use

Preparing for first use

To prepare your machine for first use:

4.1.1 Make sure all loose packaging materials have been removed from the
machine.

4.1.2 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.

4.1.3 Take inventory of all items included with the machine and verify that
all loose components and fasteners are accounted for.

4.1.4 Attach component parts not already attached.

4.1.5 Add fluids as needed and applicable, including fuel, engine oil, and
battery acid.

4.1.6 Move the machine to its operating location.

wc_tx000294gb.fm 23

Operation RD 7

4.2 Controls and Service Locations

Ref. Description Ref. Description

1 Handle locking pin 15 Crank guide sleeve
2 Tie-down location 16 Fuel tank fill cap
3 Scraper bar (4 total) 17 Top cover
4 Water control valve 18 Hydraulic tank (under front cover)
5 Shock mount (4 total) 19 Hydraulic tank fill port (under top cover)
6 Parking brake 20 Hydraulic tank sightglass (through slots)
7 Back-up stop pad 21 Fuel tank
8 Forward/reverse control lever 22 Front cover

9 Exciter control lever 23 Lifting eye
10 Water tank fill cap 24 Operator’s Manual holder
11 Crank storage location 25 Water tank
12 Throttle control 26 Battery
13 Air cleaner indicator 27 Ignition switch
14 Oil dipstick 28 Alarm

24 wc_tx000294gb.fm

RD 7 Operation

4.3 Position of the Operator

Safe and efficient use of this machine is the operator’s responsibility.
Full control of the machine is not possible unless the operator
maintains the proper working position at all times.

While operating this machine, the operator must:

• stand or walk behind the machine, facing forward with the handle
directly ahead

• grasp the handle with one hand

• activate the control levers with the other hand

wc_tx000294gb.fm 25

Operation RD 7

4.4 Refueling the Machine

Requirements

• Machine shut down

• Engine cool

• Machine/fuel tank level with the ground

• Fresh, clean fuel supply

Procedure

Perform the procedure below to refuel the machine.

WARNING

Fire hazard. Fuel and its vapors are extremely flammable. Burning fuel can cause
severe burns.

f Keep all sources of ignition away from the machine while refueling.
f Do not refuel if the machine is positioned in a truck fitted with a plastic bed liner.

Static electricity can ignite the fuel or fuel vapors.

f Refuel only when the machine is outdoors.
f Clean up spilled fuel immediately.

4.4.1 Remove the fuel cap.

4.4.2 Fill the fuel tank until the fuel level gauge indicates that the tank is full.

CAUTION

Fire and health hazard. Fuel expands when heated. Expanding fuel in an over-filled
tank can lead to spills and leaks.

f Do not overfill the fuel tank.

4.4.3 Reinstall the fuel cap.

Result

The procedure to refuel the machine is now complete.

26 wc_tx000294gb.fm

RD 7 Operation

4.5 Before Starting

Before starting the machine, check the following:

• Engine oil level

• Air cleaner maintenance indicator

• Fuel level

• Hydraulic fluid level

• Water tank level

4.6 Engine Throttle Control

See Graphic: wc_gr001338

The engine throttle control (c) is pulled out to start the engine. Press
in on the rubber button (c1) with your thumb while pulling the control
out. The control will stay at any position, and can be fine-tuned by
twisting the control in or out.

To stop the engine, push the throttle control all the way in by pressing
on the rubber button with the heel of your hand.

c1

a

c

b

d

wc_gr001338

wc_tx000294gb.fm 27

Operation RD 7

4.7 Starting the Machine (RD 7H, RD 7H-S)

See Graphic: wc_gr001338, wc_gr001339, wc_gr001340

4.7.1 Check that the exciter (a) is in the OFF position.

4.7.2 Pull the throttle control (c) up to open engine throttle.

4.7.3 Turn the decompression lever (f) until stop (f1) is reached. In this
position, the automatic decompression system is heard to engage.

4.7.4 Insert the crank (d) into the guide sleeve (b).

4.7.5 Turn the crank 5 turns to build up pressure for the engine to fire.

4.7.6 Stand alongside the engine, facing the back of the machine (e) and
grasp the tubular grip with both hands.

Do not stand in any other position! Injury may result if the engine
should backfire!

WARNING

4.7.7 Turn the handle slowly until the pawl engages the rachet, then
increase the turning force to build up speed.

Note: The highest speed must be reached when the decompression
lever (f) returns to the (f0) position.

4.7.8 As soon as the engine has started, pull the starting handle out of the
guide sleeve.

You must hold the tubular grip firmly to maintain contact all the time
between the starting handle and the engine. Maintain turning force

WARNING

during the entire hand starting operation.

Note: If backfiring occurs when starting the engine because the crank
handle was not turned firmly enough, the brief reverse rotation at the
handle tube separates the link between the crank lug and the driving
dog.

4.7.9 If the engine begins to run backwards after backfiring (smoke emerges
from air cleaner), release the crank handle immediately and stop the
engine.

4.7.10 To restart the engine, wait until it has come to a standstill, then repeat
the starting procedures.

4.7.11 Allow engine to warm up for a few minutes before operating machine.

e

f1

wc_gr001339

g

f

f0

wc_gr001340

28 wc_tx000294gb.fm

RD 7 Operation

4.8 Starting the Machine (RD 7H-ES)

See Graphic: wc_gr001529

4.8.1 Check that the exciter (a) is in the OFF position.

4.8.2 Pull the throttle control (b) up to open the engine throttle.

4.8.3 Turn the ignition switch (c) to start the engine.
.
When the key is in the ON position, an alarm will sound. The alarm is

a reminder to turn the key to the OFF position when the machine is not

CAUTION

WARNING

4.8.4 Allow the engine to warm up for a few minutes before operating the

in use. Failure to do this will result in a dead battery.
Note: The alarm will stop when proper oil pressure is reached.

Do not crank the engine starter for more than 15 seconds at one time.
Longer cranking cycles could lead to starter damage.

machine.

wc_tx000294gb.fm 29

Operation RD 7

4.9 Cold Weather Starting (RD 7H, RD 7H-S)

See Graphic: wc_gr001338, wc_gr001339, wc_gr001340

At temperatures below approximately -5°C (30°F), always turn the
engine over to ensure that it rotates freely.

4.9.1 Check that the exciter switch (a) is in the OFF position.

4.9.2 Pull the throttle control (c) up to open the engine throttle.

4.9.3 Move the decompression lever (f) to a position that is approximately
halfway between f0 and f1.

4.9.4 Insert the crank (d) into the guide sleeve (b).

4.9.5 Turn the crank 10 turns (rotations) to build up pressure for the engine
to fire.

4.9.6 Clean around the cover of the metering device (g), then:

• remove the cover

• fill with lubricating oil until the level reaches the upper rim

• press the cover on firmly.

4.9.7 Start the engine as normal. See section Starting the Machine.

a

b

d

wc_gr001338

e

f1

g

c1

c

wc_gr001339

f

f0

wc_gr001340

30 wc_tx000294gb.fm