Endo ELF-3 Manuel utilisateur
Users Manual
Spring Balancer
ELF-3
ELF-5
ELF-9
For safe and correct operation of the product, please be sure to read this manual and fully
understand its content before use.
After reading keep the manual safe so that you can find and use it readily.
In case of resale or transfer of this product, make sure to transfer the manual to the new owner.
BMU-0011
Issued in December 2022
CONTENTS
Introduction.............................................................................................3
Notation in this manual ................................................................................................
Scope of warranty and liabilities for the equipment .....................................................
Definition of intended users for this manual ................................................................
3
4
4
Emergency contact in case of malfunctions ................................................................ 5
Precautions for handling.......................................................................5
3-1 Packaging arrangement and transportation ...................................................
3-2 Checks after unpacking ..................................................................................
3-3 Disposal of packing materials .........................................................................
5
5
6
Product Description ..............................................................................6
4-1 Components ...................................................................................................
4-2 Operating environment ...................................................................................
4-3 Product specifications .....................................................................................
6
6
6
4-4 Applicable standards ...................................................................................... 7
Installation ..............................................................................................8
5-1 Preparation and checks before installation .....................................................
5-2 Installation procedures ....................................................................................
5-3 Post-installation checks .................................................................................
8
9
10
Usage ....................................................................................................11
6-1 Pre-operation inspections and checks ...........................................................
6-2 Precautions for use.........................................................................................
6-3 Operation method of the drum lock ................................................................
11
12
13
6-4 Replacement of the tools (equipment) ...........................................................13
Troubleshooting ...................................................................................15
7-1 Countermeasures? ......................................................................................
7-2 Releasing the fall-arrest device ..................................................................
15
15
Dimensional Drawing ..........................................................................16
Consumables and Special Accessories ............................................16
Disposal of Product .........................................................................16
2
1.
2.
3.
4.
5.
6.
7.
8.
9.
10. Parts list..........................................................................................7-18
11.
Spring Balancer Users Manual
Unpacking and Installation....................................................................5
6-5 Periodical inspections ....................................................................................14
Introduction
1.
Thank you very much for your purchasing of the Spring Balancer. To prevent any trouble and obtain the best
performance, please be sure to read this manual and fully understand its content.
Notation in this manual
Hazard levels
This product is designed with ultimate priority on the safety of operators. However, due to the nature of
the system, there are risks that cannot be removed.
In this manual, the level of significance and risk is defined and indicated in three stages: “WARNING”,
“CAUTION”, and “NOTICE”. Thoroughly read and fully understand the indicated items before operating
the product and performing maintenance procedures. The indications for “WARNING”, “CAUTION”, and
“NOTICE” are in order of risk significance (WARNING > CAUTION > NOTICE). Their details are
described below.
WARNING
CAUTION
A situation that, if mishandled, may cause death or serious disability.
A situation that, if mishandled, may cause minor or moderate injury.
Indicates a situation that, if mishandled, may cause property damage.
The extent of the problem described above (disability, injury, and property damage) is defined as
follows.
Serious disability:
Moderate injury:
REMINDER
Symbols
Indicates a PROHIBITED action that
must not be performed.
Illustrations
3
Spring Balancer Users Manual
Loss of eyesight, wound, burn (high-temperature or low-temperature), electric
shock, bone fracture, poisoning, and other injuries that leave aftereffects and that
require hospitalization or long-term outpatient treatment.
Burn, electric shock, bone fracture, and other injuries that do not require
hospitalization or long-term outpatient treatment.
Scratch, bruise, laceration, and other injuries that have a minor impact on health.
Minor injury:
Property damage: Extended damage to buildings, household articles, and injury to domestic
animals or pets.
Describes important details to be remembered for the operation.
This Users Manual uses the following symbols to simply provide information in addition to the
indications above. Indicates potential property damage
or a danger that may inflict bodily
injury.
Indicates a REQUIRED action that
must be performed.
Indicates that it is necessary to
thoroughly read the manual and the
relevant documents.
This manual covers multiple models of the Spring Balancer. If their functions and details of operations
are identical and can be correctly described in the same way, illustrations are provided taking a specific
model as an example. Therefore, please note that the illustrations may be different from the actual
equipment.
Scope of warranty and liabilities for the equipment
Warranty and liabilities for the equipment
Definition of intended users for this manual
Operator
Spring Balancer Users Manual
1. We will repair or replace the product free of charge if a failure due to manufacturing defects occurs
under proper usage during the warranty period. For details, contact us or your dealer.
2. The warranty will be void in the following cases:
1) Change of ownership.
2) Repair or modification performed by a party other than the manufacturer, agents, or dealers.
3. The warranty period is one (1) year from the date of purchase.
4. Repairs applicable to any of the following shall be charged even during the warranty period:
1) Failure/damage caused by incorrect use.
2) Failure/damage caused by use of non-authorized parts.
3) Failure/damage caused by fire, earthquake, natural disaster, or other unexpected incident.
4) Incident caused by fall, shock, negligence, or by inadequate storage.
5) Failure/damage caused by use of parts or other equipment that are not included in this product.
6) Replacement of consumables.
7) Usage in violation of dangers or cautions stipulated in this manual.
8) Failure/damage caused by any reason that is not attributable to the manufacturer.
5. Warranty exclusions such as opportunity loss.
Either during or after the warranty period, opportunity loss, damage to anything other than our
product(s), or other duties imposed on you/your customer as a result of the failure of our product(s)
are outside the scope of the warranty.
Copyright and liabilities
4
The copyright for this manual is issued to Endo Kogyo Co., Ltd.
The manual is provided for the limited purpose of supporting the safe and proper use of the product. It
cannot be used for other purposes.
The customer may not use or make copies of this manual, in whole or in part, outside of this purpose
without receiving prior consent from Endo Kogyo Co., Ltd.
The customer is also prohibited from translating or modifying the content of the manual, in whole or in
part.
The content described in the manual is subject to change without advance notice. Please note this in
advance.
This manual has been prepared to help all intended users involved with this product. From the stand point of
safety, we have defined intended users according to their ability and experience and provided detailed
descriptions for each group. This manual defines four user levels.
Maintenance
operator
The operator is a user who engages in general operations. Maintenance and other
operations that require special skills are excluded from the general operations. The
operator is therefore not permitted to disassemble the main equipment.
The operator should read the manual thoroughly and carry out their work with
complete understanding of the operating procedures.
In addition to the work of the operator described above, the maintenance operator
is permitted to perform installation, simple troubleshooting, and periodic
inspections. The maintenance operator is required to develop sufficient knowledge
and operating skill for this product. The maintenance operator should read the
manual thoroughly and carry out their work with complete understanding of the
equipment’s characteristics and all work contents.
Precautions for handling
2.
● Do not use in explosive, flammable gas, or dusty atmospheres, any place where
water or oil may splash, and near combustibles. This may cause fire or injury.
● Do not perform any modification of the product.
Unpacking and Installation
3.
3-1 Packaging arrangement and transportation
3-2 Checks after unpacking
● Spring Balancer (main equipment) ---- 1 set
● Support Site guide or Users Manual--- 1 copy
Spring Balancer Users Manual
Emergency contact in case of malfunctions
If any problem with the product arises, contact us or your dealer.
Service engineer
The management supervisor is required to have sufficient knowledge of the product
and advanced operating skill for this product.
The management supervisor should manage not only the product itself but on-site
operations that handle the product, comprehensively.
In The service engineer is a worker with special knowledge and skills for installing the
product, investigating the causes of a failure or damage, and performing repairs
and overhauls. Service engineering (the work by the service engineer) is performed
by our service technicians or authorized service technicians.
Management
supervisor
Incorrect handling of this product may cause damage to the product itself as well as a fire or injury.
Thoroughly read the following precautions and be sure to heed the instructions when handling the
machinery.
The maintenance should be performed by a maintenance operator who has
developed sufficient knowledge and operating skill for the balancer.
● Incorrect usage of the product may cause an injury. Use the product correctly in
accordance with the descriptions in this manual.
● Particularly, “WARNING”, “CAUTION”, and “NOTICE” described in this manual
must be fully understood and always observed.
● Install the product correctly in accordance with the descriptions in this manual.
● Be sure to perform daily and periodic inspections.
● Be sure to use the product within the capacity range that is described in “4-3-1
Specifications”.
The standard set of this product is packaged for delivery in a cardboard box.
The total weight of the package is the sum of the weight described in “4-3-1 Specifications” and the
weight of the packing materials (approximately 0.5 kg).
When transporting the package, do not drop or allow impact to it.
Prepare a box of a similar size for re-packaging.
After opening the package, check that the following products are included.
Please contact us if you find anything missing or damaged.
5
WARNING
CAUTION
3-3 Disposal of packing materials
After opening the package, dispose of any packing and cushioning materials in accordance with the
local regulations of the area where the product is used.
Product Description
4.
4-1 Components
4-1-1 Main equipment（ELF-3,5,9）
Top hook
Cover
Bottom hook
Wire rope
Worm
Drum lock
6
Spring Balancer Users Manual
Casing
Model Factory setting
load (kg) Stroke (m) Wire rope
diameter (φ mm) Mass (kg)
4-2Operating environment
4-3Product specifications
ELF-5
ELF-9
ELF-3 4.0
7.0
2.3
3.0〜5.0
5.0〜9.0
1.5〜3.0
2.5
2.5
2.5 3.0
3.0
3.0 Approx. 4.6
4-3-1 Specifications
Installation location: General indoor
Ambient temperature: -10°C to +50°C (no freezing)
Humidity: 85% or less (no condensation)
Atmosphere: Non-explosive, free of flammable or corrosive gas, or dust, water/oil should not
splash directly
Capacity
range (kg)
Approx. 4.8
Approx. 5.4
4-3-2 Fall-arrest device
7
4-3-3 Drum lock device
Spring Balancer Users Manual
If the spring is ruptured, this device prevents the tool (equipment) attached to the bottom hook from
falling across the entire stroke. If the spring is ruptured, the safety pin is activated from the spring casing
and interferes (collides) with the pin installed on the spring casing, stopping the rotation of the drum.
For the method of releasing the activated fall-arrest device, refer to “7-2 Releasing the fall-arrest
device”.
The fall-arrest device is not designed to prevent tools (equipment) from falling. Before
using the balancer, be sure to check that the total mass (weight) of the tool
(equipment) and the accessories is within the capacity range of the balancer.
If the spring tension is set lower than the minimum capacity, the fall-arrest device will
be activated and prevent the vertical movement of the tool (equipment). (See “0
Installation of tools (equipment) and adjustment of the spring tension”.)
You can lock the drum by setting the drum lock device. (See “6-3 Operation method of the drum lock”.)
The drum lock is used to remove the tool (equipment) attached to the bottom hook or to replace the wire
rope or the wire guide. (See “6-4-1 Method of removing the tool (equipment)”.)
4-4 Applicable standards
EN ISO 12100 : Sefety of machinery General principles for design Risk assessment risk reduciion
Machinery Directive 2006/42/EC
■
Note: Only the standard specification of this product complies with the standards. If the product is used
in combination with non-standard parts or modified by the customer, the standards may no longer
be complied with. Please note this in advance.
CAUTION
Installation
5.
5-1 Preparation and checks before installation
5-1-1 Tools and equipment for installation
5-1-2 Check of installation location
1
2
3
4
5
6
8
Spring Balancer Users Manual
● Install the balancer correctly in accordance with the descriptions in this manual.
Incorrect installation may cause an injury, property damage, or damage to the
balancer.
● Be sure to attach an auxiliary wire rope or chain to the balancer to protect workers
in case the top hook or the support member (metal hanger) for the balancer should
be damaged.
The installation should be performed by a maintenance operator who has developed
sufficient knowledge and operating skill for the balancer.
All of the following items must be prepared by the customer.
・Auxiliary wire rope or chain
・Support members (metal hangers)
Before installing the product, check that the installation location does not have any of the following
problems.
Check that the support members have a sufficient strength.
Ensure that sufficient space for performing maintenance, including the adjustment of the spring
tension, is available on a side of the main equipment.
Ensure that adequate work space is available around the main equipment.
Check that the installation location has the installation environment described in “4-2 Operating
environment”.
If a trolley is used, attach a carabiner.
Check that there are no sharp edges in the installation location.
WARNING
CAUTION
5-2 Installation procedures
5-2-1 Installation of the Spring Balancer
1Support members
(metal hangers)
Top hook
2
3
4
5
9
Spring Balancer Users Manual
Do not fix the top hook. Using the product with the top hook fixed may cause
damage or a fall.
●Use a support member (metal hanger) with no opening
as shown in the figure on the right, so that the balancer
does not come off while in motion.
● Attach the support member such that the balancer does
not collide with its surroundings.
● When installing multiple balancers alongside, place
them at different heights so that they do not collide with
each other.
Prepare a support member (metal hanger) with a
sufficient strength.Attach the top hook of the
balancer directly to the support member (metal
hanger).
Note: The support member
(metal hanger) and the tool
(equipment) in the figure
are indicated for reference.
Check that the top hook latch is closed.
Ensure that the balancer moves freely.
Prepare an auxiliary wire rope or chain that has
a strength at least 10 times greater than the
maximum capacity of the balancer.
As shown in the figure on the right, attach an
end of the auxiliary wire rope or chain to a
support member (metal hanger) different from
the support member (metal hanger) to which the
top hook has been attached. Attach the other
end of the auxiliary wire rope or chain to the
main equipment of the balancer.
Support member
for the auxiliary
wire rope
Installation of the
auxiliary wire rope to
the main equipment
Auxiliary wire rope
Note: The auxiliary wire rope
and the support member
in the figure are
indicated for reference.
CAUTION
Slack
Damaged
and falls
Within
100 mm
5-2-2 Installation of tools (equipment) and adjustment of the spring tension
10
Spring Balancer Users Manual
Loosen the auxiliary wire rope or chain to
allow the balancer to move freely.
The slack must be such that the balancer
stops within 100 mm if the top hook or the
support member (metal hanger) for the
balancer are damaged and the balancer
falls.
Do not pull out the wire rope when the balancer is not loaded. If the wire rope is
released by mistake while being pulled out without a load, it may quickly be wound
up, causing an injury.
If the spring tension is set higher than the maximum capacity, not only will the
specified stroke not be obtained, but the life of the spring will also be reduced. Also, if
the spring tension is set lower than the minimum capacity, the fall-arrest device will be
activated and prevent the vertical movement of the tool (equipment).
1
2
3
Check whether the total mass (weight) of the tool (equipment) and the accessories is within the
capacity range of the balancer.
4
“+”
Increase
tension
“-”
Decrease
tension
Worm
If the spring tension is too strong, the main equipment of the balancer or
the wire rope may be damaged.
After attaching the tool (equipment), perform
readjustment and ensure that balance is achieved.
Lift the tool (equipment) and attach it to the bottom
hook of the balancer.Do not pull out the wire rope.
Lift the tool (equipment) and attach it to the bottom
hook of the balancer.Do not pull out the wire rope.
● The tension will increase if you turn the worm inthe “+” direction (clockwise).
● The tension will decrease if you turn the worm inthe “-” direction (counterclockwise).
CAUTION
WARNING
Autres manuels pour ELF-3
1
Ce manuel convient aux modèles suivants
2
Table des matières
Autres manuels Endo équilibreuse de roues
