Wacker Neuson EH 27/115 User manual

www.wackergroup.com
Operator´s Manual
Electric-breaker
EH 27/115
Double insulated
0203032en 002
03.2007

SV00030GB.fm 3
Safety instructions
1. Safety instructions
WARNING!
When using electric tools, basic safety precautions should always be
followed to reduce the risk of fire, electric shock and personal injury,
including the following.
READ ALL THESE INSTRUCTIONS BEFORE ATTEMPTING TO
OPERATE THIS PRODUCT AND SAVE THESE INSTRUCTIONS.

Table of contents
4
1. Safety instructions 3
2. Foreword 7
3. Safety instructions 8
3.1 General Instructions ..............................................................................8
3.2 Operation ...............................................................................................8
3.3 Safety checks ......................................................................................10
3.4 Maintenance ........................................................................................11
3.5 Transport .............................................................................................11
3.6 Maintenance checks ............................................................................11
4. Technical Data 12
5. Description 13
5.1 Field of application ..............................................................................13
5.2 Functional description .........................................................................13
6. Transport to work site 14
7. Operation 15
7.1 Attaching the tool .................................................................................15
7.2 Connection ..........................................................................................15
7.3 Notes on correct handling ...................................................................16
8. Maintenance 17
8.1 Maintenance schedule ........................................................................17
8.2 Carbon brushes ...................................................................................18
8.3 Lubrication of the motor and transmission ..........................................18
8.4 Lubrication of the percussion system ..................................................18
8.5 Lubrication of the tool holder, tolerances ............................................19
8.6 Faults ...................................................................................................19
9. Electriwiring diagram 20
10. Diagram 21
11. Labels 22

Table of contents
5
12. Disposal 23
12.1 Environmentally friendly reuse ............................................................23
EC - Conformity Certificate 25
DIN EN ISO 9001 Certificate 27

Table of contents
6

Vorwort.fm 7
Foreword
2. Foreword
For your own safety and protection from bodily injuries, carefully read,
understand and follow the safety instructions in this manual.
Please operate and maintain your Wacker machine in accordance with
the instructions in this manual. Your Wacker machine will reward your
attention by giving trouble-free operation and a high degree of
availability.
Replace faulty or defective components Immediately.
All rights, especially the right for copying and distribution are reserved
Copyright 2007 by Wacker Construction Equipment AG
No part of this publication may be reproduced in any form or by any
means, electronic or mechanical, including photocopying, without
express permission in writing from Wacker Construction Equipment AG.
Any type or manner of reproduction, distribution or storage on data
carriers or storage mediums not authorized by Wacker 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 increasing their safety
standards.

Safety instructions
SV00046GB.fm 8
3. Safety instructions
for the use of drilling and breaking hammers with electric drive
3.1 General Instructions
3.1.1 Drilling and breaking hammers may only be operated by persons who
∗are at least 18 years of age,
∗are physically and mentally fit for this job,
∗have been instructed in operating drilling and breaking hammers and
proven their ability for the job to the employer
∗may be expected to carry out the job they are charged with carefully.
The persons must be assigned the job of operating drilling and
breaking hammers by the employer.
3.1.2 Drilling and breaking hammers are to be applied for their proper use.
Both the manufacturer’s operating instructions and these safety
instructions have to be observed.
3.1.3 The persons charged with the operation of these hammers have to be
made familiar with the necessary safety measures relating to the
machine. In case of extraordinary uses, the employer shall give the
necessary additional instructions.
3.1.4 This machine generates noise that exceeds the country-specific
permissible noise levels (individual rating level). It may therefore be
necessary to wear ear protection
3.2 Operation
3.2.1 The function of operation levers or elements is not to be influenced or
rendered ineffective.
3.2.2 Make sure that the machine is connected only to voltage and
frequency as indicated on its name plate. Choose correct cross section
for extension cord.

SV00046GB.fm 9
Safety instructions
3.2.3 The operator has to switch off drilling and breaking hammers, to
disconnect them from the electric mains and to store them in such a
manner that they do not turn over be fore leaving the machines or
going on breaks.
3.2.4 Wear safety goggles in order to avoid injuries to the eyes.
3.2.5 We recommend wearing suitable working gloves.
3.2.6 Wear safety shoes while working with drilling and breaking hammers.
3.2.7 Drilling and breaking hammers are always to be operated with both
hands on the handles provided for this purpose.
3.2.8 When working with drilling and breaking hammers, especially when
carrying out drilling jobs, the operator has to have a firm stand,
particularly when working on scaffolding and ladders.
3.2.9 Drilling and breaking hammers are to be guided such that hand injuries
caused by solid objects are avoided. When carrying out demolition
jobs at elevated places, special care is required to prevent the machine
or the operator from falling.
3.2.10 Avoid body contact with earthed components. When breaking
connecting passages, make sure that there are no electric wires or gas
pipes. No one may stay in the room to which the passage is broken
through, as there is danger of injuries because of falling stones or
tools.
3.2.11 During operation the tool holder must be closed. Tools and tool holder
must be checked for wear in order to guarantee proper functioning of
holder.
3.2.12 The operation of this machine may cause broken - off pieces to be
flung away. Therefore, during operation, no one except the operator is
to come near this machine.

Safety instructions
SV00046GB.fm 10
3.2.13 Drilling and breaking hammers have to be disconnected from the
electric mains before changing tools.
3.2.14 The tools always have to be in perfect conditions.
3.2.15 Do not operate this machine in areas where explosions may occur.
3.2.16 Do not misuse the electric cable to pull or lift up the unit or to pull the
plug out of the socket. Protect cable from heat, oil and sharp edges.
3.2.17 Electric equipment and material may only be used if they comply with
the operational and local safety requirements. They must be in proper
conditions and they must be maintained in this condition.
3.2.18 Do not expose electric tools to rain. Do not use electric tools in damp
or wet surroundings.
3.3 Safety checks
3.3.1 Drilling and breaking hammers may only be operated with all safety
devices installed.
3.3.2 Before starting operation, the operator has to check that all control and
safety devices function properly.
3.3.3 Before starting operation, the overload clutch of drilling hammers has
to be checked for proper functioning.
3.3.4 Regularly check cable for damage.
3.3.5 In case of defects of the safety devices or other defects reducing the
operational safety of the drilling and breaking hammers, the supervisor
has to be informed immediately.
3.3.6 The machine must to be switched off immediately in case of defects
jeopardizing the operational safety of the equipment.

SV00046GB.fm 11
Safety instructions
3.4 Maintenance
3.4.1 Only use original spare parts. Modifications to this machine are subject
to the express approval of the Wacker Company. All liabilities shall be
refused in case of nonobservance.
3.4.2 Disconnect the drilling and breaking hammer from the electric mains
before carrying out maintenance and repair jobs.
3.4.3 Work on the electric parts of the machines may only be carried out by
skilled technicians.
3.4.4 All safety devices must be reinstalled properly immediately after
maintenance and repair jobs have been completed.
3.5 Transport
3.5.1 When being transported on vehicles, precautions have to be taken that
these hammers do not slip or turn over.
3.6 Maintenance checks
3.6.1 According to the conditions and frequency of use, drilling and breaking
hammers have to be checked for safe operation at least once every 6
months by skilled technicians, such as those found at Wacker-service
depots and have to be repaired if necessary.
Please also observe the corresponding rules and regulations valid in your
country.

Technical Data
TD00601GB.fm 12
4. Technical Data
EH 27/115
Item no. 0008396
Length x width x height (without tool) mm: 710 x 529 x 210
Operating weight (mass) without tool kg: 27
Voltage V: 110 - 127 1~
Power input kW: 1,8
Current consumption A: 15
Frequency Hz: 50 / 60
Percussion rate min-1:1050
Special lubricating grease grease Retinax LX2
Shaft for breaking tools SW 28 x 152
Drive motor Totally insulatedt universal motor
Single stroke impact J: 45
Breaking output (Concrete B25) kg/h: 630
Sound pressure level at operator’s station LPA:94 dB(A)
The weighted effective acceleration
value, determined according to
EN ISO 5349 m/s2:is 6

Description
T01035GB.fm 13
5. Description
5.1 Field of application
For breaking concrete and asphalt as well as rubble-laden ground, for
demolishing concrete, masonry and similar building materials
(undisturbed and frozen ground) etc., for ripping up roads and
concrete, asphalt, tar as well as wood-block and stone paving, for
cutting off clay, loam, turf and salts, for breaking compacted or tamped
ground, for ramming in posts and earth rods.
Always use the proper pin driving tool with the machine when ramming
posts or ground rods. Damage will occur to the percussion system if
posts and/or rods are directly inserted into the toolholder. This will
eliminate any responsibility for warranty claims and prevent
unnecessary customer complaints.
5.2 Functional description
On activation of the switch lever (1), and electric motor (2) drives the
crank mechanism (3) through a transmission (4).
The rotary motion of the crankshaft journal is converted by means of a
con-rod (5)and a guide piston (6) into a linear motion and transmitted
through an air cushion (“pneumatic spring”) to the percussion piston
(7).
The percussion piston then strikes the tool directly (without any
intermediate piston).

Transport to work site
T00143GB.fm 14
6. Transport to work site
Conditions:
∗Only use appropriate lifting gear with a minimum load bearing capacity
of 30 kg (66 pounds) for the transport of your Wacker machine.
∗Always switch off engine during transport!
∗Securely tie down you Wacker machine when transporting it on the
floor of a vehicle.
Note: Also refer to the specifications in safety instructions.

Operation
T00730GB.fm 15
7. Operation
7.1 Attaching the tool
1. Swivel catch (9) on tool holder (11) outwards.
2. Clean shaft (10) and grease slightly.
3. Insert tool right in.
4. Press catch (9) on tool holder (11) right back.
Only use sharp tools!
Only use tools with perfect shaft (10) to avoid recoil!
7.2 Connection
Check before connecting:
1. The mains voltage must be the same as that indicated on the
nameplate (12)..
2. The electric breaker is operated with (light current) (see technical
specifications).
3. Check whether the necessary fuse is available in the mains
supply(see technical specifications).
4. The electric breaker is fully insulated and there is therefore no
green/yellow PE conductor in the power supply cable .

Operation
T00730GB.fm 16
7.3 Notes on correct handling
Place the electric breaker with tool on the material in question and
switch on by pressing the switch lever.
After a few seconds the electric breaker reaches its full percussion
rate.
Exploit the weitht of the electric breaker when working.
Applying great force against the surface being worked does not
improve the performance of the tool.
Apply a pressure of at least approximately 100 N (22 lbs) on both
handles to avoid no-load strokes and to guarantee a comfortable
operation.
Do not place the chipping tool to far from the edge, thus making it
possible to split off the material being worked on. This stops the tool
from jamming and helps increase the demolition performance.

Maintenance
T00145GB.fm 17
8. Maintenance
8.1 Maintenance schedule
Component Maintenance work Maintenance
interval
Feed cable Check for perfect condition, change if defective.
daily
Protective hood Ventilations slits free of dirt, clean if necessary.
Tools Check the shaft and cutting edges and, if
necessary, sharpen, reforge or replace.
Motor head Regrease via grease nipple (see technicla data) 20 hours
Carbon brushes Check for wear - if remaining length less than12
mm in spite of cut - out facility - replace. 80 hours
Tool holder Check for wear - change if necessary. monthly
Electric breaker Maintenance - WACKER service station. 300 hours

Maintenance
T00145GB.fm 18
8.2 Carbon brushes
Check carbon brushes:
1. Replace carbon brushes (16) if the surface has been worn down
unevenly.
2. Replace carbon brushes (16) if the are less than 12 mm long.
If shut-down device has triggered replace carbon brushes (16).
8.3 Lubrication of the motor and transmission
The sealed motor armature bearing and the transmission mean that
additional lubrication with in the maintenace interval of 300 hours is
unnecessary.
8.4 Lubrication of the percussion system
The percussion system (17) is to be moderately greased with special
grease (see technicla data) via the grease nipple (19) located on the
crankcase (accessible via the lubrication bore on the hood) roughly
every 20 hours of operation or at the latest if the tool shaft (10) runs
dry.

Maintenance
T00145GB.fm 19
8.5 Lubrication of the tool holder, tolerances
8.5.1 Only insert tools (18) with a cleaned and slightly greased shaft (10) into
the tool holder (11).
8.5.2 Check the tool holder often for signs of wear. A tool in new condition
(18) may exhibit tolerance of no more than 10 mm at a distance of 400
mm from the insertion end’s (1) rest collar. Replace a tool holder (11)
that exhibits greater wear in order to avoid disturbances and damages.
8.6 Faults
Cause Remedy
Carbon brushes worn. Replace carbon brushes.
Damaged power cable. Replace completely.
Failure of the
electronics.
The wiring diagram shows how it is possible to conti-
nue to use the machine in the event of an electronic
fault by changing the motor connection.

Electriwiring diagram
SK00681GB.fm 20
9. Electriwiring diagram
1Motor
2 Cover with terminal board
3 Switch
4Plug