EFA 85 /DS Quick guide

EFA circular saws
Translation of the
original operating instructions
EN
Schmid & Wezel GmbH
www.efa-germany.com
Rev. 00 –09.2020
EFA circular saws
Breaking and
splitting saws
EFA 85 /DS
EFA 86 /DS
EFA 185 DS/H
EFA 186 DS/B
EFA SK 18 WB/S
EFA SK 23/18
EFA SK 30/18
EFA SK 40 E

EFA circular saws Translation of the original operating instructions EN
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Translation of the original operating instructions
Schmid & Wezel GmbH.All rights reserved.
Printed in Germany.
These operating instructions must not be reproduced in whole or in part, used for competitive
purposes without our authorisation, or made available to third parties without our consent.
Any changes or amendments to these operating instructions are only allowed to be made by us;
otherwise any warranty claim against us will be void.
Schmid & Wezel GmbH
Maschinenfabrik
Maybachstrasse 2
75433 Maulbronn / Germany
[phone]
[phone]
＠[email protected]
Internet: http://www.efa-germany.de

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Table of contents
1Introduction and general information______________________________________________________ 2
1.1 Information on the operating instructions ______________________________________________________ 2
1.2 User group _____________________________________________________________________________ 2
1.3 Scope of supply__________________________________________________________________________ 3
1.4 Intended use ____________________________________________________________________________ 3
1.5 Claims for defects, liability, warranty__________________________________________________________ 4
2Safety______________________________________________________________________________ 6
2.1 Safety instructions________________________________________________________________________ 6
2.1.1 Other safety signs __________________________________________________________________ 7
2.1.2 Warning signs _____________________________________________________________________ 7
2.1.3 Mandatory instruction signs___________________________________________________________ 7
2.1.4 Prohibition sign ____________________________________________________________________ 8
2.2 Personal protective equipment ______________________________________________________________ 8
2.3 Conduct at the workplace __________________________________________________________________ 8
3Technical description_________________________________________________________________ 10
3.1 Dimensions ____________________________________________________________________________ 14
3.2 Nameplate_____________________________________________________________________________ 16
4Transport and storage ________________________________________________________________ 17
5Connection and start-up ______________________________________________________________ 18
5.1 Initial start-up___________________________________________________________________________ 18
5.1.1 Spring balancer___________________________________________________________________ 18
5.1.2 Electrical connection _______________________________________________________________ 19
5.1.3 Water connection _________________________________________________________________ 19
6Handling___________________________________________________________________________ 20
6.1 Switch operation ________________________________________________________________________ 20
6.1.1 Switching on _____________________________________________________________________ 20
6.1.2 Switching off _____________________________________________________________________ 20
6.2 Working with the circular saw ______________________________________________________________ 21
6.2.1 Operation________________________________________________________________________ 21
6.2.2 Operational safety_________________________________________________________________ 21
7Assembly__________________________________________________________________________ 22
7.1 Saw blade change_______________________________________________________________________ 22
7.1.1 Removal of saw blade______________________________________________________________ 22
7.1.2 Installation of saw blade ____________________________________________________________ 22
7.2 Sharpening the saw blade_________________________________________________________________ 23
7.3 Protective hood and depth stop_____________________________________________________________ 23
7.4 Changing the carbon brush (EFA SK 18 WB, EFA SK 23/18, EFA SK 30/18) _________________________ 23
8Cleaning___________________________________________________________________________ 24
8.1 Daily cleaning after completion of the slaughtering______________________________________________ 24
8.1.1 Cleaning the circular saw ___________________________________________________________ 24
9Maintenance and repair_______________________________________________________________ 25
9.1 Maintenance ___________________________________________________________________________ 25
9.1.1 Daily maintenance of the circular saw__________________________________________________ 25
9.1.2 Extended maintenance _____________________________________________________________ 25
9.2 Repair by customer service________________________________________________________________ 26
9.2.1 Return __________________________________________________________________________ 26
10 Waste disposal –recycling ____________________________________________________________ 27
10.1 Disassembly and disposal_________________________________________________________________ 27

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1 Introduction and general information
Important! Operating instructions cannot
prevent misuse in every case!
1.1 Information on the operating instructions
These operating instructions are part of the technical documentation of the machine and comply with the
Machinery Directive.
The machine has been designed and built according to the careful selection of the harmonising standards to
be observed as well as other technical specifications.
The operating instructions are intended to describe the operation and handling of the EFA circular saw and
provide the necessary safety instructions.
These operating instructions are intended for the machine operator and contain the details of the intended use
and important information:
for safe handling of the machine,
for maintenance,
for cleaning.
If the instructions are followed, the EFA circular saw will be operated safely, properly and economically and its
operational capability will be maintained.
Observance of these instructions helps to avoid dangers, minimise repair costs and downtimes, and increase
the reliability and service life of the machine.
A prerequisite for safe handling and trouble-free operation of the machine is observance of the following:
the operating instructions,
the company directives (safety signs and danger warnings),
the legal provisions on occupational safety,
the applicable laws and regulations.
These operating instructions must always be kept accessible at the machine for all work to be carried out.
Note! If the existing operating instructions have been damaged or lost, you can request a
replacement by stating: machine designation, part number, serial number and year of
production, see section 3.2 Nameplate.
If you have any questions, or if you cannot solve a problem with the help of these operating instructions,
please contact our Service department.
1.2 User group
Only instructed and/or trained personnel over 16 years of age are allowed to set up or operate the EFA
circular saw. Furthermore, it is imperative that everyone working with and on the machine has read and
understood the operating instructions, and observes them.
The operation of the circular saw by persons who are under the influence of alcohol, medication, or drugs is
strictly prohibited.
Instructed person
Persons over 16 years of age who have been instructed and trained by a qualified person (specialist) in the
tasks assigned to them and about possible dangers in the event of improper behaviour, as well as in the
handling of the necessary protective devices and protective measures, are considered to be instructed
persons.

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Trained person (specialist personnel)
Persons who have obtained a professional qualification and have demonstrated this by checking the results or
passing an examination are considered to be trained persons.
1.3 Scope of supply
Upon receipt of the delivery, check immediately whether the scope of supply corresponds to the
accompanying documents.
Submit a complaint in the event of:
apparent transport damage immediately to the supplier,
apparent defects/missing items, toSchmid & Wezel GmbH.
These operating instructions describe the EFA circular saw with all possible options.
Options are not necessarily included in the scope of supply and can only be retrofitted to a limited extent.
1.4 Intended use
Danger!
Never point the device at
people!
Wear eye protection such
as protective goggles when
working!
Danger!
Never reach into the cutting area of
the saw blade, you could injure
yourself!
Areas of application
EFA 85, EFA 85 DS, EFA 185 DS, EFA 185 H
These breaking saws are designed for medium to heavy breaking operations in medium sized and large
plants. These models are suitable for breaking and quartering in the hanging of halves of beef.
EFA 86, EFA 86 DS, EFA 186, EFA 186 DS, EFA 186 B
These breaking saws are designed for medium to heavy breaking operations in medium sized and large
plants. These models are suitable for the breaking of halves of pork in hanging and lying position; can be
used on breaking belts or tables.
EFA SK 18 WB, EFA SK 18 S, EFA SK 18 S AE
This breaking saw is used for breaking cattle, calves, pigs and sheep.
EFA SK 23/18
This breaking saw is used for breaking cattle, calves, pigs and sheep.
EFA SK 30/18
This model is particularly suitable for quartering halves of beef due to its performance and the 300 mm
saw blade.
EFA SK 40 E
This splitting saw is designed for light to medium breaking operations, especially for halving hogs and
sows in medium sized and large plants.
These machines are not equipped for a different type of use. Should the user desire to use the equipment for
a different purpose than intended, please contact Schmid & Wezel GmbH (S&W). For all other types of use,
the user must be advised of the inherent accident hazard and increased wear.
In the event of non-compliance, the liability shall be borne by the user alone.
The circular saw is only allowed to be used:
in a fully functional and perfect technical state, in line with the intended use, in consideration of all of the
safety- and hazard-relevant aspects,
with properly functioning safety devices,
with the equipment approved by the manufacturer.

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Do not use materials harmful to health.
If, contrary to the intended use, materials harmful to health are to be processed then Schmid & Wezel GmbH
must be informed in writing about the planned use and the protective measures taken by the
customer/operating company.
The customer/operating company is solely responsible for suitable protective measures (e.g. extraction
devices, respiratory protection, protective suits, etc.) and company directives.
If the EFA circular saw is not used as intended or is modified without the approval of Schmid & Wezel GmbH,
persons could be injured and the machine damaged.
The operating permit is invalidated.
The intended use includes in particular that you:
Observe the operating instructions and company directives,
Observe maintenance instructions and intervals,
Immediately rectify any faults that impair safety,
Do not operate the circular saw if safe working with it is not possible,
Do not make any structural changes to the circular saw without authorisation.
Danger! The circular saws can be hazardous if they
are used by untrained persons, in an
improper manner, or for purposes that are
not in line with the intended use.
Residual hazards
As the circular saw is intended for industrial use on carcasses, there is a possibility of injury or, in case of
gross misuse, of fatal injury. Therefore, in case of misuse, the possibility of immediate death or death by blood
loss must be expected.
Consequently, always pay attention to the correct handling of the machine.
There is an injury hazard, especially in the uncovered area of the saw blade. Remain focused and act with
caution when working. Wear personal protective equipment
1.5 Claims for defects, liability, warranty
Warranty and liability claims for personal injury and damage to property are excluded in particular in the
following cases:
Improper use or unsuitable use,
Improper transport or storage,
Improper assembly and/or initial start-up,
Improper operation (operating errors),
Disregarding of operating instructions/company directives,
Faulty or negligent handling,
Improper maintenance/repair,
Unsuitable equipment or spare parts that are not approved by Schmid & Wezel GmbH Maschinenfabrik,
Natural wear and tear,
Improper or unprofessional rectification of defects by the customer/operating company or third parties,
Unauthorised structural changes to the machine without written permission from Schmid & Wezel GmbH,
Chemical, electrochemical or electrical influences –unless they are the responsibility of Schmid & Wezel
GmbH.
Liability
The manufacturer accepts no liability for accidents, machine damage and consequences of machine failure
resulting from failure to observe the operating instructions. In addition, the local accident prevention
regulations and general safety regulations for the area of application of the machine apply.

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Limitation of liability
All technical information, data and instructions for the operation of the machine contained in the operating
instructions are up to date at the time of delivery. They are provided to the best of the manufacturer's
knowledge, taking into account previous experience and knowledge. The manufacturer reserves the right to
make technical modifications in the course of further development of the machine described in these operating
instructions. No claims can therefore be derived from the information, figures and descriptions in these
operating instructions. The manufacturer shall be liable for any errors or omissions within the scope of the
warranty obligations entered into in the contract, to the exclusion of further claims.
Claims for damages are excluded, irrespective of the legal basis on which such claims are derived. Only the
text of the original operating instructions is authoritative.
The textual and graphical representation in the operating instructions does not necessarily correspond to the
scope of supply or a spare parts order. Illustrations in these instructions are not to scale.
Technical changes
The manufacturer Schmid & Wezel GmbH reserves the right to make technical changes within the scope of
improving the usage properties and further development without prior notice. Figures are for basic
understanding and could differ from the actual design of the system.
Copyright
The manufacturer reserves the copyright to these operating instructions. These operating instructions are
intended for assembly, operating, maintenance and monitoring personnel.
Transferring the operating instructions to third parties without the written consent of the manufacturer Schmid
& Wezel GmbH is not permitted. Duplication in any kind and form –in whole or in part –as well as the use
and/or communication of the contents are not permitted without written declaration of the manufacturer.
Note!All content, texts, drawings, pictures and other
representations are protected by copyright and
are subject to industrial property rights.
Any improper use may be punishable!

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2 Safety
Everyone who is involved in the installation, start-up, operation, set-up, equipping and maintenance of the
machine in the operating company must have read and understood the operating instructions, in particular the
"Safety" chapter.
Safe operation of the machine is only guaranteed if:
Unauthorised persons are kept away from the working area of the machine,
Safe working with awareness of the dangers involved is regularly checked in accordance with the
operating instructions,
No working methods are employed that could compromise safety,
Malfunctions in the machine are eliminated immediately,
Maintenance work is carried out regularly.
Important!The operating instructions must be accessible at all
times during the entire period of use of the machine
for the operating, maintenance and cleaning
personnel.
Therefore, always keep these operating instructions
close to the machine.
First aid!
Important!In the event of an accident, provide FIRST AID!
2.1 Safety instructions
During the use of the machine, dangers could arise in certain situations or through certain behaviour.
The measures described to protect against dangers must be observed.
The safety instructions are identified as shown in the following tables (pictograms).
Symbol/
pictogram
Signal word
Damage/
injury to . . .
Definition
Possible consequences of
disregarding the safety
instructions
Danger
Persons
Imminent danger
Death, serious bodily injury or
substantial damage to property
Warning
Persons
Potentially dangerous
situation
Death or serious bodily injury could
occur
Caution
Persons
Less dangerous situation
Slight or minor injuries
Attention
Property
Potentially harmful
situation
Damage to the product or its
environment
Information
-
Application tips and other
important/useful
information and notes
No dangerous/harmful situation
•Keep calm!
•Remove injured persons from the danger area without
endangering yourself!
•Inform other employees (first-aiders, paramedics) or
request help!

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2.1.1 Other safety signs
Symbol
Meaning
Mark of conformity!
The machine complies with the applicable regulations of the EC Machinery Directive.
Recyclable materials!
Ensure that the materials are recycled properly!
2.1.2 Warning signs
Warnings and symbols used in the operating instructions and documentation are intended to help you to
recognise and assess the dangers more easily.
Symbol
Meaning
Warning: Dangerous electrical voltage!
Touching live parts can result in immediate death. Covers or cabinets marked with this sign are only
allowed to be opened by qualified electricians after the machine has been switched off.
Warning: Sharp cutting tool!
Contact with the running cutting tool will lead to extremely severe cutting injuries involving permanent or
even fatal injury. Ensure that a sufficient safety distance is maintained. Contact with the stationary cutting
tool could lead to severe cutting injuries involving permanent injury. Wear safety gloves. Ensure that a
safety distance is maintained.
Warning: Hand injuries!
There is a danger of hands being pinched, pulled in or otherwise injured. Keep your hands away from
places that bear this warning sign!
Warning: Noise with high sound pressure level!
If the sound pressure level at the workplace is above 85 dB(A). Remaining for a relatively long period can
cause permanent hearing damage. Only enter the area if wearing the correct hearing protection.
Warning of hot surface!
It is not always possible to notice the presence of hot machine parts, containers or materials, as well as
hot liquids. If such a safety sign is affixed to a component, care must be taken. Do not touch hot surfaces
without protective gloves.
2.1.3 Mandatory instruction signs
Symbol
Meaning
General mandatory instruction sign!
Observe company directives, notes in operating instructions and generally applicable safety regulations.
Wear cut-resistant gloves!
Cutting injuries possible. Provide information about suitable cut-resistant gloves.
Use safety shoes!
Safety shoes form part of the personal protective equipment and provide protection for the health of the
worker. They prevent accidents and injuries such as crushing by heavy objects.
Wear a protective helmet!
Head injuries are possible due to objects falling, tipping over or being thrown out, or due to swinging
loads; bumping into obstacles also represents a danger. A suitable protective helmet must always be
worn on the head when in the indicated area.
Wear protective goggles!
Eye injuries (loss of vision) possible when working due to flying solid objects.
Wear hearing protection!
If the continuous sound pressure level of the machine/system is above 85 dB(A), hearing protection must
be worn to prevent permanent hearing damage.
Wear protective clothing!
Protection against contact with auxiliary or working equipment. Find out about suitable protective clothing.

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2.1.4 Prohibition sign
Symbol
Meaning
General prohibition sign!
The red signal border/prohibition stripe indicates an immediate danger and is overlaid diagonally over the
self-explanatory symbol. The general prohibition sign must always be used in conjunction with another
sign.
2.2 Personal protective equipment
Some work requires protective equipment.
This protective equipment must be made available to the operator.
Lifecycle phase
Protective equipment
Transport
Protective gloves
Safety shoes
Assembly, start-up and
maintenance
Cut-resistant gloves
Safety shoes
Protective goggles
Hearing protection
Hairnet for long hair
Operation
Hairnet for long hair
Cut-resistant gloves
Protective goggles
Hearing protection
Safety shoes
Protective clothing
Storage
Protective gloves
Safety shoes
Disposal
Protective gloves
Safety shoes
2.3 Conduct at the workplace
The workplaces must be designed in such a way that each employee has at least 1.5 m² of freedom of
movement. Ensure proper lighting of the workplace (at least 500 lux).
No other workplace should protrude into this area, otherwise there is an injury hazard due to the actions
carried out with circular saw.
The floor must minimise the danger of slipping on wet, greasy or dirty surfaces.
The workplace must comply with local hygiene and workplace regulations.
Keep your workplace tidy and in good working condition. A cluttered or messy workplace can lead to
accidents.
Take environmental influences into account.
Keep other persons away from your workplace. Focus on the job in hand when working.
Do not use the EFA circular saw when you are tired and/or unfocused.
Store the circular saw in a safe manner. Store unused devices in a dry place.
Avoid wearing loosely fitting items of clothing and jewellery that can be caught by moving parts. Wear
sturdy shoes during your work. Always wear a hairnet!
Ensure that your workplace has a correct, ergonomic set-up and make sure that you are standing
securely.
Only use original EFA saw blades. Follow the instructions listed under Saw blade change. See also
section 7.1 Saw blade change.
Do not leave any tool keys connected. Check that all keys have been removed before switching on.
Look after your tools with care. Use only sharp and undamaged saw blades so that you can work better
and more safely.
Only use genuine EFA accessories/spare parts.
Never drill into the motor housing. Use adhesive labels to identify the device.
Changes and modifications to the machine are not permitted and, if any such changes are made, S&W's
guarantee and liability shall be invalidated.
The use of other equipment, accessories or spare parts can endanger you and other persons.
Non-compliance will void the warranty.

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3 Technical description
Tab. 3.1 –Technical data
Description
EFA circular saws
EFA 85 /DS -
EFA 185 DS/H
EFA 86 /DS -
EFA 186 DS/B
EFA SK 18 WB
EFA SK 23/18
EFA SK 30/18
EFA SK 40 E
Motor output
W
1500
1020
1800
2500
Rotational speed
rpm
1150
1650
1350
1400
Voltage
V/Ph/Hz
See Tab. 3.2 –Electrical data
Connection cable
m
4 (42 V)
5 (112/400 V)
3.5
3.5
3.5
6
Type of protection
-
IP 65
IP 24
IP 24
IP 44
Saw blade
Ø mm
300
230
180
230
300
400
Depth of cut
mm
100
15 –75 (adjustable)
15 / 65 (adjustable)
15 / 75 (adjustable)
100
140
Water consumption
l/min
-
-
-
-
-
7.0
SPL –sound pressure level
dB(A)
< 76
< 85
approx. 87
< 85
SWL –sound power level
dB(A)
-
-
-
< 95
-
Hand-arm vibration
m/s²
< 2.5
< 2.5
< 2.5
< 2.5
Weight
kg
15.2 –16.7
14.7 –16.2
6.7
9.8
11.0
47 (42 V)
42 (115/460 V)

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Tab. 3.2 –Electrical data
EFA circular saws
Operating voltage
U [V]
Frequency
f [Hz]
Amperage
I [A]
Machine no.
EFA 85
400
50
3.5
110886300
60
110886343
EFA 85 DS
42
50
33.0
110886302
110886304
EFA 85
110886307
EFA 85 DS
400
3.5
110886308
EFA 85
115 / 208
12.1 / 6.7
110886305
EFA 86
400
60
3.5
110886320
42
50
33.0
110886322
EFA 86 DS
33.0
110886324
EFA 86
110886327
EFA 86 DS
400
3.5
110886328
EFA 185 DS
400
50
3.5
110886310
EFA 185 H DS
110886311
EFA 185 DS
42
33.0
110886312
EFA 185 H DS
110886313
EFA 185 DS
115 / 208
60
12.1 / 6.7
110886319
EFA 185
42
50
33.0
110886340
400
3.5
110886342
EFA 185 H
42
29.0
110886350
EFA 186 DS
400
50
3.5
110886330
42
33.0
110886332
EFA 186
110886337
400
3.5
110886362
EFA 186 B
42
33.0
110886290
EFA SK 18 WB
230
50 / 60
4.55
110885310
110885340
115
9.2
110885320
42
25.2
110885330
EFA SK 18 S
230
5.5
110885355
EFA SK 18 S AE
110885356
EFA SK 23/18
230
50 / 60
8.4
110890306
42
46.0
110890307
EFA SK 30/18
230
50 / 60
8.4
110890406
42
46.0
110890407
EFA SK 40 E
400
50
5.0
110888206
42
45.0
110888216
115
17.0
110888226
415
60
4.6
110888236
42
45
110888217
440 / 460
4.45 / 4.26
110888246

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EFA circular saws
Operating voltage
U [V]
Frequency
f [Hz]
Amperage
I [A]
Machine no.
400
3.9
110888250
230
8.5
110888256
600
3.3
110888266
Tab. 3.3 –EFA circular saw overview
EFA circular saw
Usage
Application
EFA 85
EFA 85 DS
Breaking saw
2-hand control:
Powerful breaking saw with centrifugal
power brake for halves of beef; for medium
and large sized plants.
EFA 86
EFA 86 DS
Breaking saw
2-hand control:
Powerful breaking saw with centrifugal
power brake for halves of hogs; for
medium and large sized plants.
EFA 185
EFA 185 DS
EFA185 H
EFA 185 H DS
Breaking saw
Powerful breaking saw with centrifugal
power brake and extended gear head, for
halves of beef; for medium and large sized
plants.
EFA 186
EFA 186 DS
EFA 186 B
Breaking saw
Powerful breaking saw with centrifugal
brake and long gear head, for hogs; for
medium and large plants.

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EFA SK 18 WB
EFA SK 18 S
EFA SK 18 S AE
Breaking saw
The handy breaking saw for butcher’s
shops and medium-sized plants.
EFA SK 23/18
Breaking saw
Breaking saw for halves of hogs; for
medium and large sized plants.
EFA SK 30/18
Breaking saw
Breaking saw for halves of beef; for
medium and large sized plants.
EFA SK 40 E
Splitting saw
2-hand control:
High cooling and water connection for
cleaning and cooling the saw blade.

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3.1 Dimensions
The following figures give you an overview of the dimensions of the EFA circular saws.
EFA 85, EFA 85 DS
EFA 86, EFA 86 DS
EFA 185, EFA 185 DS, EFA 185 H, EFA 185 H DS

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EFA 186, EFA 186 DS, EFA 186 B
EFA SK 18 WB, EFA SK 18 S, EFA SK 18 S AE
EFA SK 23/18
EFA SK 30/18
189
244
244
219
322
785
174
151
323
605
222
539

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EFA SK 40 E
3.2 Nameplate
The nameplate is attached to the machine and contains information on the machine performance.
The following figure shows an example of the nameplate for the EFA machines.
Control cable
Handle with
switch
Splash guard
Depth of cut
Handle with
switch
Disinfectant connection
Cooling water connection
Machine designation
Part number
Serial number
Year of production
Power cable

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4 Transport and storage
The machine has been tested and carefully checked in our factory before shipment.
The test ensures that the machine is working properly.
Despite all care taken, there is a possibility that the machine could be damaged during transport.
Therefore, check the machine for possible transport damage when unpacking it.
Unpacking the machine
Remove all packaging materials and dispose of them in a professional and environmentally friendly
manner.
Check the machine for possible transport damage.
Information on disposal and recycling can be found in section 10.
Storage of the machine
For safe storage of the machine, it is essential to observe the following instructions:
–Only store the machine in a dry, ventilated room.
–Only store the machine in a clean and dry condition.
–Protect the machine from corrosion.

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Fig. 5.2 –Weight relief system
(spring balancer)
5 Connection and start-up
5.1 Initial start-up
Danger!
Voltage!
Installation work is only allowed
to be carried out by authorised
specialist personnel.
Only connect the saw to the
mains when it is switched off!
Caution!
Tripping hazard!
We recommend that the lines are led
away upwards.
Lines that run along the floor can be
a tripping hazard for the operator!
Warning!
Wear eye protection or protective
goggles and safety shoes when
working!
When the saw is not in use, place it in such a way that there is no accidental contact with the sharp saw blade.
This can lead to injuries.
5.1.1 Spring balancer
The machine must always be operated in combination with a weight relief
device (spring balancer), see Fig. 5.1 and Fig. 5.2.
The spring balancer is secured with a safety chain (2), see Fig. 5.3 Fine-
tuning of the spring balancer. This must be secured in a fixed position
independent of the suspension of the spring balancer.
Use a trolley to attach the spring balancer to a higher
element above the workplace or to the ceiling.
Danger! Do not come into
contact with the sharp
saw blade.
Danger! Due to the weight, there could be
a hazard due to the machine
slipping or falling when the
weight relief device is attached
or detached.
Also make sure that the machine does not jam either on the snap hook or on
the hook of the circular saw.
Be careful!
Danger!
When hooking in the cable of the spring
balancer, the spring loaded rope can whip
around if the snap hook is not properly
hooked.
Please note that if the rope rebounds when
unloaded, it is very dangerous for people.
The spring will also be irreparably
damaged.
The maximum load specified on the
nameplate must not be exceeded.
Spring balancer
Snap hook
Fig. 5.1 –Weight relief system
(spring balancer)
Nameplate

EFA circular saws Translation of the original operating instructions EN
Rev. 00 –09.2020
19 of 29
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Adjustment of the spring balancer
The fine-tuning of the spring balancer is carried out via the plus/minus
(+/-) screw on its housing (1).
To do this, turn the screw in the direction of minus (-) until the device is freely
suspended and balanced (with the tension spring) at working height.
If it is not possible to pull out, the spring balancer is blocked and a new
adjustment is necessary.
Turn the screw in the plus direction (+) until pulling out is possible and start
the fine adjustment again.
5.1.2 Electrical connection
The saw is operated with electrical power. It must be connected by a qualified
electrician in accordance with the legal regulations and those of the local energy
supply companies.
For electrical machines, a fuse must be provided on the operating side.
If the operating voltage does not correspond to a safety extra-low voltage, a residual current circuit breaker
(RCCB) must be installed on the operating side.
Before connecting the safety isolating transformer on the primary side (only for safety extra-low voltage),
the connection data of the transformer must be observed. Furthermore, the existing power system type
must be taken into account. Fuse protection of the transformer must be provided on the operating side.
The cable cross-sections must be dimensioned accordingly for the electrical connection of the connecting
cable between the safety isolating transformer and the control (only with safety extra-low voltage).
The connecting line of the saw must be connected according to the electrical circuit diagram supplied.
When starting up the saw, check the direction of rotation of the motor.
The saw has been designed and built according to the Machinery Directive 2006/42/EC.
Unauthorised changes and modifications, especially to the safety devices of the saw, are not permitted for
reasons of operational safety and, if any such changes are made, the manufacturer's guarantee and
liability shall be invalidated.
5.1.3 Water connection
EFA SK 40 E
There is a cold water connection available.
The saw blade cooling/saw blade rinsing is controlled by a manual valve.
Instead of the manual valve (tap), a magnetic valve can be installed.
Fig. 5.3 –Fine-tuning of the
spring balancer