Wacker Neuson RD25 User manual

www.wackergroup.com

Roller

RD 25

OPERATOR'S MANUAL

0154648en 001

0102

0154648EN

Foreword

wc_tx000001gb.fm

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.

1. Foreword

This manual provides information and procedures to safely operate

and maintain this Wacker model. For your own safety and protection

from injury, carefully read, understand and observe the safety

instructions described in this manual.

Keep this manual or a copy of it with the machine. If you lose this

manual or need an additional copy, please contact Wacker

Corporation. This machine is built with user safety in mind; however,

it can present hazards if improperly operated and serviced. Follow

operating instructions carefully! If you have questions about operating

or servicing this equipment, please contact Wacker Corporation.

The information contained in this manual was based on machines in

production at the time of publication. Wacker Corporation reserves the

right to change any portion of this information without notice.

All rights, especially copying and distribution rights are reserved.

No part of this publication may be reproduced in any form or by any

means, electronic or mechanical, including photocopying, without

express written permission from Wacker Corporation.

Any type of reproduction or distribution not authorized by Wacker

Corporation represents an infringement of valid copyrights and will be

prosecuted. We expressly reserve the right to make technical

modifications, even without due notice, which aim at improving our

machines or their safety standards.

WARNING

INTRODUCTION / VORWORT RD25

ii

Menomonee Falls, WI 53051 USA

Wacker Corporation

112232

hp

kW

Rev.

Model

kg

Item Number

lbs

max.lbs

MADE IN

ITALY

max.kg

Manuf. Yr.

Serial Number

dB(A)

Nameplate / Typenschild

A nameplate listing the Model Number and Serial Number OR Model Number, Item Number, Revision, 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 the model number and serial number OR model number, item number, revision number,

and serial number of the unit.

Ein Typenschild mit Typ und Seriennummer ODER Typ, Artikelnummer, Version und Maschinen-Nummer ist an jedem

Gerät angebracht. Die Daten von diesem Schild bitte notieren, damit sie auch bei Verlust oder Beschädigung des

Schildes noch vorhanden sind. Der Typ und Maschinen-Nummer ODER der Typ, die Artikel-Nummer, die

Versions-Nummer und die Maschinen-Nummer sind bei der Ersatzteilbestellung oder Nachfragen bezüglich

Service-Informationen stets erforderlich.

My machine’s numbers are / Die Nummern meines Gerätes sind :

Serial Number

Maschinen-Nummer

Revision

Version

Item Number

Artikel-Nummer

Model number

Typ

RD25RD25

RD25

00080580008058

0008058

101101

101

50101015010101

5010101

RD25 INTRODUCTION / VORWORT

iii

This manual should be considered as an integral part

of your Wacker machine like any other component. If

it becomes damaged or illegible you should request a

replacement immediately from the manufacturer.

Read the contents of this manual carefully.

Wacker Corporation declines all responsibility for im-

proper use of the machine and for any damages

caused by operations not described in this manual or

otherwise considered as unreasonable use.

The machine must only be used for the purposes for

which it was designed; using the machine for any other

purpose can be dangerous.

Wacker Corporation only accepts responsibility for

machines which conform to their original design.

Any modification to the structure or operating cycle of

the machine must be expressly authorised beforehand

by Wacker Corporation.

Only use original Wacker spare parts. Wacker Corpo-

ration declines all responsibility for damage caused by

use of non-original spare parts.

Wacker operates a policy of continuous improvement

and reserves the right to make changes in machine

design without prior notice.

Use and maintenance of the machine is subject to the

following types of legislation:

• Accident prevention regulations

• The Highway Code and traffic regulations

• Regulations governing road making and earth mov-

ing machinery.

Dieses Handbuch ist Bestandteil des Lieferumfangs

der Maschine; sollte es beschädigt bzw. Teile davon

nicht lesbar sein, so ist umgehend eine neue Kopie

anzufordern.

Die Anweisungen bezüglich Bedienungssicherheit,

Wartung und die Beschreibungen aufmerksam

durchlesen.

Wacker Corporation lehnt jegliche Haftung aufgrund

des nicht bestimmungsgemäßen Einsatzes der

Maschine, sowie für Schäden und Folgeschäden

aufgrund unsachgemäßer bzw. im vorliegenden

Handbuch nicht beschriebener Eingriffe ab.

Die Maschine darf nur bestimmungsgemäß zum Einsatz

kommen; jeder unsachgemäße Einsatz könnte

gefährlich sein.

Wacker Corporation übernimmt die Verantwortung nur

für die Maschine in der Grundausführung gemäß

Konstruktion.

Eine Änderung der Struktur und des Betriebskreislaufes

der Maschine ist von der Technischen Abteilung von

Wacker Corporation ausdrücklich zu genehmigen.

Verwenden Sie ausschließlich Originalersatzteile;

Wacker Corporation lehnt jegliche Haftung für Schäden

und Folgeschäden durch den Einsatz von nicht Original-

Ersatzteilen ab.

Wacker Corporation behält sich das Recht auf

Änderungen in der Konstruktion bzw. Verbesserungen

ohne Ankündigung an Kunden, die bereits über ähnliche

Modelle verfügen, vor.

Für das jeweilige Land sind vorrangig die

• einschlägigen Unfallverhütungsvorschriften

• die Straßenverkehrsordnung

• die für derartige Maschinen und Geräte eventuell

gültigen Normen.

INTRODUCTION / VORWORT RD25

iv

Safety information

This manual contains important safety information and

should be read carefully before using the machine.

The operating and maintenance instructions in this manual

have been provided to ensure safe, efficient use of the

machine for the purposes for which it was designed.

The purpose of this manual is to provide owners and

operators with safe, efficient instructions for the use and

maintenance of the tandem roller. Following these

instructions will safeguard operator safety, reduce repair

costs and downtime and ensure a long, productive

machine life.

This manual must be complete and fully legible and must

be kept where it is immediately available to machine

operators and maintenance staff. Operators and

maintenance staff must be informed of the location of this

manual.

These operating and maintenance instructions are

delivered by your Wacker dealer together with the machine

to ensure that they are read and understood fully. If any

parts of this manual are not clear, do not hesitate to

contact your nearest Wacker dealer for clarification. A full

understanding of the instructions in this manual is your

best guarantee of safe operation.

Carry out the daily maintenance operations as required

and keep a record of the working hours completed by the

machine.

Only use original Wacker spare parts. Original spares

can be obtained from a Wacker area agent who will also

provide advice and instructions on their fitting and use.

Fitting non-original spare parts may cause damage to

other components. We recommend that you obtain your

spare parts exclusively from an authorised Wacker agent

or dealer.

Working conditions world-wide vary greatly and it is

impossible therefore to guarantee that this manual will

cover all the situations likely to be encountered. While

every attempt has been made to ensure that this manual

is up to date, Wacker declines all responsibility for loss or

damage arising out of published material or any errors

and omissions therein. If the machine is to be used in

particularly heavy conditions, we recommend that you

contact your nearest dealer for special instructions. Failure

to observe these instructions may void the guarantee on

your tandem roller.

You are strongly advised to contact your Wacker dealer

in the event of any problems regarding use and

maintenance of the vehicle.

For reasons of clarity, some of the illustrations in this

manual show parts of the machine with the guards or

covers removed. The machine MUST NOT be oper-

ated without the guards and covers in position. Keep

the guards and covers in position at all times when

operating the machine.

WARNING

RD25

Operation

Table of Contents

1A

1A-1

1.1 Safety Notes ............................................................................................. 1A-2

1.2 Application ................................................................................................ 1A-2

1.3 Laws Pertaining to Spark Arresters ........................................................... 1A-2

1.4 Operating Safety ....................................................................................... 1A-3

1.5 Service Safety........................................................................................... 1A-4

1.6 Operator Safety while using Internal Combustion Engines........................ 1A-5

1.7 Warning & Informational Labels ................................................................ 1A-6

1.8 Operating Labels....................................................................................... 1A-7

1.9 Dimensions ............................................................................................... 1A-8

1.10 Technical Data .......................................................................................... 1A-8

1.11 Operation & Service Locations................................................................ 1A-10

1.12 Main Features ......................................................................................... 1A-11

1.13 Hydraulic Equipment ............................................................................... 1A-11

1.14 Engine..................................................................................................... 1A-11

1.15 Chassis ................................................................................................... 1A-11

1.16 Steering .................................................................................................. 1A-11

1.17 Driving Position ....................................................................................... 1A-11

1.18 Operator Presence System..................................................................... 1A-11

1.19 Electrical Equipment ............................................................................... 1A-11

1.20 Transmission .......................................................................................... 1A-12

1.21 Exciter System ........................................................................................ 1A-13

1.22 Braking System....................................................................................... 1A-14

1.23 Throttle lever ........................................................................................... 1A-14

1.24 Water Sprinkling Equipment .................................................................... 1A-15

1.25 Panel Controls and Indications ............................................................... 1A-16

1.26 Lighting equipment .................................................................................. 1A-18

1.27 Isolating the power supply....................................................................... 1A-18

1.28 Roll Over Protection Structure (ROPS) ................................................... 1A-19

1.29 Flashing yellow light ................................................................................ 1A-20

1.30 Driving on slopes and uneven terrain ...................................................... 1A-20

1.31 Anti-theft protection ................................................................................. 1A-21

1.32 Tanks: filling, levels and draining ............................................................ 1A-22

1.33 Seat adjustment ...................................................................................... 1A-23

1.34 Jump starting .......................................................................................... 1A-23

1.35 Fuse box ................................................................................................. 1A-24

1.36 Additional fuses....................................................................................... 1A-24

1.37 Preliminary checks .................................................................................. 1A-25

1.38 Starting the engine .................................................................................. 1A-26

1.39 Stopping the engine ................................................................................ 1A-27

1A-2

1A OPERATION RD25

1.1 Safety Notes

This manual contains NOTES, CAUTIONS, and WARNINGS which must be followed to prevent the possibility of

improper service, damage to the equipment, or personal injury.

Notes:

Notes appear in italics and contain additional

information important to a procedure.

CAUTION: Cautions provide information important to prevent

errors which could damage machine or components.

Warnings warn of conditions or practices which

could lead to personal injury or death!

WARNING

1.3 Laws Pertaining to Spark Arresters

Notice: Some states require that in certain locations, spark arresters be used on internal combustion engines. A spark

arrester is a device designed to prevent the discharge of sparks or flames from the engine exhaust. It is often required

when operating equipment on forested land to reduce the risk of fires. Consult the engine distributor or local authorities

and make sure you comply with regulations regarding spark arresters.

1.2 Application

This 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. Do not use this machine for any other

purpose.

1A-3

RD25 OPERATION 1A

1.4 Operating Safety

Familiarity and proper training are required for the safe operation of mechanical equipment! Equipment operated

improperly or by untrained personnel can be dangerous! Read the operating instructions in both 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 equipment before being allowed to operate the machine.

ALWAYS disengage and stow locking bar for the

articulated joint before operating machine. The ma-

chine cannot be steered when the locking bar is

engaged.

ALWAYS check that all controls are functioning prop-

erly immediately after start-up! DO NOT operate

machine unless all controls operate correctly.

ALWAYS remain aware of changing positions and

movement of other equipment and personnel on the

jobsite.

DO NOT attempt to start the machine when standing

alongside. Only start the engine when seated in the

driver's seat and with the forward-reverse lever in the

neutral position.

ALWAYS remain aware of changing surface condi-

tions and use extra care when operating over uneven

ground, on hills, or over soft or coarse material. The

machine could shift or slide unexpectedly.

ALWAYS use caution when operating near the edges

of pits, trenches or platforms. Check to be sure ground

surface is stable enough to support the weight of the

machine and that there is no danger of the roller

sliding, falling or tipping.

ALWAYS wear protective clothing when operating

equipment. Wear goggles or safety glasses, hearing

protection, safety helmet and work gloves.

ALWAYS keep hands, feet, and loose clothing away

from moving parts of equipment.

ALWAYS read, understand, and follow procedures in

Operator’s Manual before attempting to operate equip-

ment.

WARNING

ALWAYS store equipment properly when it is not

being used. Equipment should be stored in a clean,

dry location out of the reach of children.

ALWAYS operate machine with all safety devices

and guards in place and in working order.

ALWAYS 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.

NEVER allow improperly trained people to operate

this equipment. People operating this equipment must

be familiar with the potential risks and hazards asso-

ciated with it.

NEVER touch engine or muffler while machine is

operating or immediately after it has been turned off.

These areas get hot and may cause burns.

NEVER use accessories or attachments which are

not recommended by WACKER for this equipment.

Damage to equipment and/or injury to user may

result.

NEVER leave machine running unattended.

NEVER operate a defective unit in need of service or

repair.

NEVER operate with fuel cap loose or missing.

NEVER carry passengers. Danger of crushing —

keep clear of the central steering joint between the

front and rear frames.

NEVER use or attempt to repair damaged safety belts

or ROPS. Replace only with WACKER spare parts.

1A-4

1A OPERATION RD25

WARNING

1.5 Service Safety

Poorly maintained equipment can become a safety hazard! In order for the equipment to operate safely and properly

over a long period of time, periodic maintenance and occasional repairs are necessary. Maintenance should only be

performed by suitably trained personnel.

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.

DO NOT use the machine as a ladder. Use safe

ladders and platforms designed for this purpose.

DO NOT attempt to clean or service machine while

it is running, the engine is hot, or the machine is

moving. Rotating parts can cause severe injury.

DO NOT use gasoline or other types of fuels or

flammable solvents to clean parts, especially in en-

closed areas. Fumes from fuels and solvents can

accumulate and become explosive.

DO NOT modify the equipment without express writ-

ten approval of the manufacturer.

DO NOT modify, weld or drill safety frames (ROPS).

DO NOT loosen or remove bolts. DO NOT weld, drill

or modify a broken safety frame.

ALWAYS keep area around muffler free of debris

such as leaves, paper, cartons, etc. A hot muffler

could ignite them, starting a fire.

ALWAYS replace worn or damaged components

with spare parts designed and recommended by

WACKER for servicing this machine.

ALWAYS keep machine clean and labels legible.

Replace all missing and hard-to-read labels. Labels

provide important operating instructions and warn

of dangers and hazards.

ALWAYS check and tighten all external fasteners

at regular intervals.

Before starting any maintenance operations, switch

off the machine and remove the ignition keys from

the control panel.

Switch off the power supply at the isolator before

adjusting or maintaining the electrical equipment.

Before you start the machine, ensure that all tools

have been removed from the machine and that

replacement parts and adjusters are firmly tight-

ened.

Before dismantling hydraulic connectors or hoses,

ensure that all pressure has been bled from the

circuit.

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.

WARNING

1A-5

RD25 OPERATION 1A

DO NOT refuel engine near open flame.

DO NOT spill fuel when refueling engine.

DO NOT operate near open flames.

ALWAYS refill fuel tank in well-ventilated area.

ALWAYS replace fuel tank cap after refueling.

ALWAYS keep area around hot exhaust pipes free

of debris to reduce the chance of an accidental fire.

DO NOT run machine indoors or in an enclosed area

unless adequate ventilation, through such items as

exhaust fans or hoses, is provided. Exhaust gas from

the engine contains poisonous carbon monoxide

gas; exposure to carbon monoxide can cause loss of

consciousness and may lead to death.

DO NOT smoke while operating machine.

DO NOT smoke when refueling engine.

DO NOT refuel hot or running engine.

1.6 Operator Safety while using Internal Combustion Engines

Internal combustion engines present special hazards during operation and fueling! Failure to follow the safety guidelines

described below could result in severe injury or death.

WARNING

1A-6

1A OPERATION RD25

Safety alert. During

fueling, no sparks,

flames, or burning

objects near machine.

1.7 Warning & Informational Labels

This WACKER machine uses international pictorial labels where needed. These labels are described below:

Pictorial Meaning Pictorial Meaning

Safety alert.

Read operator’s manual for

instructions.

Pinch point

Grease points:

Inspect and lubricate every

50 hours of operation.

Tie-down point

(one of two)

Hydraulic oil

reservoir level

Hydraulic oil

reservoir fill

Hydraulic oil

reservoir drain

Lift point

(one of four)

110167

110176

111418

111760

112216

110032

111418

110200

50

Warning! Electrical

shock hazard!

Warning! Do not approach

the machine while it is

moving.

112235

112230

112228

Water tank fill

1A-7

RD25 OPERATION 1A

1.8 Operating Labels

Pictorial Meaning Pictorial Meaning

This WACKER machine uses international pictorial labels where needed. These labels are described below:

P

Variable direction control:

Forward

Neutral

Reverse

112233

Variable throttle:

Low RPM

High RPM

112236

Parking brake is engaged

Parking brake is disengaged

Water control valve

is fully open

Water control valve

is fully closed

Electrical isolator switch

open - closed

112234

112339

89712

1A-8

1A OPERATION RD25

1.10 Technical Data

1.9 Dimensions

Sound and Vibration Measurements

The required sound specification, per Appendix 1, Paragraph 1.7.4.f of the EC-Machine Regulations, is:

- the sound pressure level at operator's location (L

pA

) = 84 dB(A).

This sound value was determined according to ISO 6081 for the sound pressure level (L

pA

) at the operator's location

with the machine stationary at maximum RPM and the exciter off.

The weighted effective acceleration value, determined according to ISO 8662 Part 1, is approximately:

Hands = 0.8–1 <2.5 m/s

2

, Feet = 1.5–2 m/s

2

, Seat = 0.2–0.3 <0.5 m/s

2

.

The vibration measurements were obtained with the machine moving on hard asphalt at maximum RPM.

BB01320

I

B

J

L

D

F

E

K

A

F

J

B

I

G

C

H

ABC D E F G H IJKL

in. 102.4 43.3 70.9 51 36.4 29.5 113.5 7.9 1.8 1.6 72.8 80

mm 2600 1100 1800 1295 925 Ø 750 2882 200 46 40 1850 2030

1A-9

RD25 OPERATION 1A

Engine

Roller

Engine Make

Engine Model

Power

Hp (kW)

Displacement in

3

(cm

3

)

Starter type / V / kW

Alternator Volts / Amps

Air Cleaner type

Operating Speed rpm

Valve Clearance (cold) intake in. (mm)

exhaust

Battery V / Size

Fuel type

Fuel Capacity gal. (l)

Fuel Consumption gal. (l)/hr.

5510 (2500)

5113 (2320)

102.4 x 46.7 x 120.1 (2600 x 1186 x 3053)

43.3 (1100)

29.5 (750)

8 (200)

42.3 (160)

13.1 (4.0)

0 – 5

(0 – 8.0)

(1)

3200 (53.3)

Rev. 104 and lower Rev. 105 and higher

Hatz Hatz

2M41L 2M41-153J

32.6 (24.3)

104.7 (1716)

Electric / 12 / 2.7

14V / 50

Single Element

2650

0.004 (0.10)

12 / 100 Amp-hour

Clean, filtered diesel

14.8 (56)

1.8 (6.7)

Lubrication

Engine Crankcase

Hydraulic System

Exciters (each)

Articulated Joint

Drive Bearings -

front and rear drums

Quantity

1.5 U.S. gal. (5.5 liters)

22.5 U.S. gal. (85 liters)

1.3 U.S. gal. (5 liters)

4 – 5 shots with hand-held

grease gun

Sealed

Operating Weight lb.(kg)

Dry Weight lb.(kg)

Overall Size l x w x h in. (mm)

Drum Width in. (mm)

Drum Diameter in. (mm)

Ground Clearance in. (mm)

Water Tank Capacity gal. (l)

Outside Turning Radius ft. (m)

Forward / Reverse Speed mph (km/hr)

Gradeability

Vibration Frequency vpm (Hz)

Please refer to the Main-

tenance section for the

recommended lubricants

and their equivalents.

Type

(1)

Please refer to Section 1.30

Driving on slopes and uneven terrain.

1A-10

1A OPERATION RD25

1.11 Operation & Service Locations

1 Diesel engine

2 Hydraulic transmission pump

3 Front hydraulic transmission motor

4 Rear exciter hydraulic motor

5 Exciter/Steering hydraulic pump

6 Exciter solenoid valve

7 Front exciter hydraulic motor

8 Rear hydraulic transmission motor

9 Hydrostatic steering

10 Brake

11 Oil Cooler

12 Electric water pump

BB01206

A - Throttle lever

B - 3-position ignition switch

C, D, M, K, V, W, I, O, U, - indicating lights

E - Hour meter

F - FORWARD/REVERSE lever

H - Parking and emergency brake button

J - Light switch and horn button

L - Direction indicator switch

N - Rear work lights switch

P - 6 fuses

Q - Exciter selector switch

R - Exciter ON/OFF switch (on forward/

reverse lever)

S - Drum sprinkler valve

T - Water pump switch

D

E

U

KJ

Q

T

I

O

P

W

V

C

N

L

M

B

BB00108 BB00114

S

H

F

R

A

G

765112

311 4

8

10

9

2

10

1A-11

RD25 OPERATION 1A

1.12 Main Features

The RD25 incorporates the following innovative features:

• Drive on both drums.

• Vibration on both drums at a single amplitude and

frequency; vibration on the front drum only is also

possible.

• Central steering joint.

• Hydrostatic series transmission.

• Hydraulic series powered vibration.

• Hydrostatic steering.

• Negative hydraulic brakes on both drums.

• Water sprinkler equipment on both drums.

• Lighting and electrical equipment to highway code

standard.

• Stainless steel water tank.

• Speeds from 0–5.0 mph (8.0 kph).

1.17 Driving Position

The driving position has a large, comfortable seat provid-

ing good visibility to both sides of the machine. The

steering wheel has a knob. The dashboard houses the

ignition key, an electric hour meter and the engine

warning lights. The forward-reverse, brake, and accel-

erator levers are ergonomically positioned.

1.13 Hydraulic Equipment

The hydrostatic drive of the transmission and vibrating

systems is protected by an oil cooler and filters. The

transmission filter has a “filter clogged” indicator (a

vacuum gauge) on the inlet side of the pump.

1.19 Electrical Equipment

The electrical system is powered by a 12 Volt, 100 Ah

battery. The vehicle is fitted with a complete set of road

and work lights.

1.15 Chassis

The chassis consists of two half-frames linked by a

central steering joint. The front half-frame carries the

engine and transmission equipment and one of the drive/

exciter drums. The rear half-frame carries the driving

controls, the water tank and a drive/exciter drum.

1.14 Engine

The machine has an air-cooled diesel engine with electric

starter. The engine powers the hydraulic pump for the

steering and exciter equipment and the hydraulic trans-

mission pump.

1.16 Steering

A hydraulic gear pump drives the ORBITROL steering

servo which is controlled by the steering wheel. The

steering servo feeds oil to the double-acting steering

cylinders. In the event of a drop or failure in the pressure

supplied by the hydraulic gear pump, the steering will

continue to operate because the ORBITROL servo unit

will also act as a pump.

Turning the steering wheel G to the left or to the right

causes a corresponding movement of the front half-

frame. The steering joint between the two half-frames

has been designed so that the tracks made by the front

and rear drums are identical on all turning circles.

BB00016

1.18 Operator Presence System

The machine is fitted with a safety device which locks the

engine transmission when the driver stands up or leaves

the driver’s seat. The machine can therefore only be

driven when the driver is seated.

1A-12

1A OPERATION RD25

1.20 Transmission

Both roller drums are driven. A variable displacement

pump and hydrostatic transmission drive the hydraulic

motors fitted to each drum. Forward and reverse travel

are selected using a forward-reverse lever located to the

side of the driver’s seat. In order to comply with safety

standards, the machine has a safety device which only

enables starting of the diesel engine when the forward-

reverse lever is in the neutral position.

FORWARD-REVERSE lever

Shift the lever F into “Forward” A or “Reverse” I according

to the direction of travel desired.

An increase or decrease in road speed is obtained by

moving the lever forwards or backwards; road speed

varies from “ZERO” to a permitted maximum of 5 mph

(8.0 kph) Road speed is the same in both “Forward” and

“Reverse”. If you wish to change direction of travel from

FORWARD to REVERSE or vice versa, move the lever

to the "N neutral” position, allow the vehicle to come to a

complete stop, then move the lever in the direction

desired. The lever runs in a slider which prevents any

sudden inversion of the lever. The end of this lever is also

fitted with a switch R for the exciter pump.

Note: The machine is equipped with an "operator pres-

ence system". This "system" permits the machine to

move only when the operator is seated in the driving

position. The machine's motion is suspended when the

operator rises from the driving position consequently

activating the negative brake.

To restart:

• sit down in the driving position

• place forward/reverse lever into neutral

• operate forward/reverse lever.

When negotiating gentle slopes, keep the engine at high

rpm's and the Forward/Reverse lever at the minimum

position.

Refer to section 1.30

Driving on slopes and uneven

terrain

for gradient limits. Vehicle speed must also be

regulated in accordance with current ground conditions

and vehicle road holding ability.

CAUTION: This vehicle has a hydrostatic transmission

which means that the Forward/Reverse lever can also be

used as an engine brake. Shifting the lever to the neutral

position stops the vehicle.

F

BB00012

R

I

A

N

112233

1A-13

RD25 OPERATION 1A

1.21 Exciter System

The exciter is electrically controlled and operates on both

drums. The exciter is driven by a gear pump. The

hydraulic motor, fitted to one side of the rear drum, is

splined onto the shaft of an eccentric weight by a splined

coupling. A switch on the forward-reverse lever operates

the exciter. The vehicle chassis is isolated from vibra-

tions by a series of shockmounts.

Exciter selector switch

Use this selector switch Q to select vibration on both

drums or vibration on the front drum only. Switch on the

vibration mode selected by using the exciter switch R.

Position 1: vibration on both drums

Position 0: vibration on front drum only

Exciter ON/OFF switch

To start vibration, turn the switch R to position 1.

To stop vibration, turn the switch R to position 0.

CAUTION: Do not keep the vibration running when the

vehicle is to remain stationary for some time.

Keeping the exciter on for a prolonged period when the

machine is stationary may cause serious damage to the

exciter equipment.

BB00108

1030SD44

Q

0

1

BB00114

BB00064

R

0

R

1

1A-14

1A OPERATION RD25

1.22 Braking System

The machine is fitted with negative brakes. Negative

brakes are automatically applied when there is no hy-

draulic system pressure. Hydraulic system pressure falls

when the forward-reverse lever is moved to the “0”

(neutral position), when the diesel engine is switched off,

or when there is a fault in the hydraulic system.

Service brake: this hydrostatic brake is applied when the

forward-reverse lever is moved to its central “neutral”

position.

Safety and parking brake: there is a multi-disc mechani-

cal brake on each drum. The brake is controlled by a push

button. In the event of a pressure failure in the hydraulic

braking circuit, the brakes automatically switch to the

“on” position.

The push button H is hydraulic and operates the negative

brake of the hydraulic drive motor.

Position 1 - Brakes on

Position 2 - Brakes off

The “Brakes ON” warning light I comes on when the

lever H is in position “1”.

Note:

Negative brakes are automatically applied when

there is no hydraulic system pressure. Hydraulic system

pressure falls when the diesel engine is switched off or

when there is a fault in the hydrostatic transmission.

CAUTION: Do not use the parking or emergency brakes

when the machine is moving. The parking or emergency

brakes can only be used when the machine is moving in

cases of extreme emergency, i.e. following failure of the

main braking system (moving the Forward/Reverse lever

to the neutral position) or on slopes.

BB00106

H

A

MinMax

BB00114

BB00069

1.23 Throttle lever

This lever A adjusts the rpm of the diesel engine between

two positions:

Position “Min” - minimum throttle

Position “Max” - maximum throttle

When starting the engine, move the lever forward to the

first 1/4 of its total travel.

I

21

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Wacker Neuson RD25 User manual

Wacker Neuson RD25 User manual

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