Yale YBF Series, Translated Operating Instructions

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5
English
INTRODUCTION
All users must read these operating
instructions carefully prior to the initial
operation. These instructions are intended to
acquaint the user with the product and enable
him to use it to the full extent of its intended
capabilities. The operating instructions contain
important information on how to handle the
product in a safe, correct and economic way.
Acting in accordance with these instructions,
helps to avoid accidents, reduce repair costs
and downtime and to increase the reliability
and lifetime of the product. The operating
instructions and the accident prevention act
is valid for the respective country and area
where the product is used. And also the
commonly accepted regulations for safe and
professional work must be adhered too.
The user is responsible for the proper and
professional instruction of the operating
personnel.
CORRECT OPERATION
----- This product has been designed to handle
loads, which are constantly lifted.
- The capacity indicated on the unit is the
maximum safe working load (W L L) that may
be attached.
- Do not allow personnel to pass under a sus-
pended load.
- Start moving the load only after it has been
attached correctly and all personnel is clear
of the danger zone.
- The operator must ensure that the load is
attached in a manner that does not expose
himself or other personnel to danger by the
product or the load.
- The product can be operated in ambient tem-
peratures between -10
°
C and + 50
°
C.
Consult the manufacturer in case of extreme
working conditions.
- Prior to operation of the product in special
atmospheres (high humidity, salty, caustic,
alkaline) or handling hazardous goods (e.g.
molten compounds, radioactive materials)
consult the manufacturer for advice.
----- If defects are found, stop using the spring
balancer.
----- For use in the food-industry, consult the
manufacturer.
----- When using spot-welding guns, take care
that the unit is insulated because of the
current leakage.
----- The suspension (trolleys etc.) should be
mounted so that the load is kept perpen-
dicular.
GB
INCORRECT OPERATION
----- Do not exceed the rated capacity of the spring
balancer.
----- Welding on hook and wire rope is strictly for-
bidden. The wire rope must never be used
as a ground connection during welding
(Fig. 1).
----- Side pull, i.e. lateral load on either housing
or bottom block is not permitted (Fig. 2).
----- Do not use the spring balancer for transpor-
tation of people (Fig. 3).
----- Do not remove the safety latch from the
hooks (Fig. 4).
----- The load must always be seated in the sad-
dle of the hook. Never attach the load to the
tip of the load hook (Fig. 5). This also ap-
plies to the suspension hook.
----- Do not knot or shorten the wire rope by us-
ing clamps, screws, screwdrivers or other
devices (Fig. 6). Do not use the wire rope
over sharp edges.
----- Do not throw the spring-balancer down.
Always place it carefully on the ground.
----- The unit must not be operated in potentially
explosive atmospheres.
INSPECTION BEFORE INITIAL
OPERATION
Each balancer must be inspected prior to
initial operation by a competent person.
The inspection is visual and functional and
shall establish that the unit is safe and has
not been damaged by incorrect transport or
storage. Inspections should be made by a
representative of the manufacturer or the
supplier although the user company can
assign its own suitable trained personnel.
INSPECTION BEFORE
STARTING WORK
Before starting work, inspect the spring
balancer, the wire rope and all load bearing
constructions for visual defects every time.
Furthermore, test, that the load is correctly
attached by carrying out a short work cycle of
lifting/pulling, tensioning and releasing.
Inspection of top suspensions
(Trolleys etc.)
The suspensions, like trolleys, have to be in-
spected for any wear or damage.
Inspection of top and bottom hooks
Inspect top and bottom hooks for deforma-
tions, damage, cracks, wear or corrosion
marks according to DIN 15405-1.
Inspection of the housing
Inspect the housing for deformations, dam-
age, cracks, wear or corrosion marks.
Inspection of wire-rope guide
Inspect the wire-rope guide for any wear or
damage.
Inspection of wire-rope
For safety reasons, the wire rope must be
changed if the amount of wire breakage is
higher than the presented regulations for the
relevant country of use.
The breakages must be counted along a wire
rope length of 6 resp. 30 times of the wire
rope diameter (see Tab. 1).
The wire rope has to be changed if a com-
plete cord is broken, there is waviness, links
or other wear and damage. Guidance for in-
spection and maintenance of wire ropes are
DIN 15020-2 „Grundsätze für Seiltriebe, Über-
wachung und Gebrauch“ and ISO 4309
„Cranes - Wire ropes - Care, maintenance,
installation, examination and discard“ also in
corporation with the regulation of the country
of operation.
The wire rope has to be replaced:
• If the number of visible wire breakages is
higher than a mandatory amount.
• If a complete cord is broken.
• If the wire rope shows bulges, kinks, pinch-
es, consistent deformations, buckling, or
any other indication of excessive wear.
• If the wire rope is damaged by any kind of
heat influence.
• If the wire rope shows corrosion inside or
outside.
• If the wire rope is extremely worn due to
insufficient lubrication.
INSTALLATION
----- According to DIN 15112, a secondary sup-
port cable or chain has to be fitted (Fig. 6,
Pos. 2). Attach one end of the secondary
support cable or chain to the balancer body
and the other end to a separate fitting which
does not support the balancer. Leave some
slack in the secondary support cable or chain
to allow the balancer to rotate freely. The
slack must be a suitable length so that the
balancer will stop within 100mm of the sus-
pension point in case of failure of the sus-
pension hook or the fitting (Fig. 7).
----- Attach the suspension hook of the balancer
directly to a suitable fitting. Check the safety
latch is closed. Take care that the balancer
does not hit surrounding objects.
----- Ensure that the top hook can swivel freely.
ADJUSTMENT OF SPRING TENSION
Note!
Before attaching, check if the total load,
including all accessories, is within the capac-
ity range of the balancer.
----- After attaching the load, adjust the spring