Desoutter Industrial Tools 20DFL Manual Del Usuario página 4

Part no 6159948692
Issue no 3
Series no A
Date 2015-07
Page 4
Adjusting the suspension
Fine adjustment of the suspension is possible to ensure low-wear
cable drum operation. To this end, adjust the suspension hook
along the bolt so that the balancer is suspended in a more or less
horizontal posision within the working area.
the hook distance to be maintained on the left above the housing
slot should be as follows for the various load ranges, realative to
thespecified maximum load (factory setting):
615 805 021 0 = aprox. 8 mm
615 805 022 0 = aprox. 8 mm
615 805 023 0 = aprox. 8 mm
615 805 024 0 = aprox. 9 mm
615 805 025 0 = aprox. 10 mm
615 805 026 0 = aprox. 11 mm
615 805 027 0 = aprox. 12 mm
Adjusting the working loads
The balancer has been factory-preset to maximum load permissible
for the type/ model in question.
After attaching the load . apply a size17 socket spanner/wrench
to the endless screw(9), then rotate the spanner in the direction of
the "-" symbol until the weight of the suspended working load is
exactly counterbalanced.
When setting the minimum load, never extend the cable beyond
a length of 1m, as otherwise the spring fracture safeguard may be
tripped. In case of the safeguard mechanism has already been ac-
tivated, first carefully preload the spring in the "+" direction as
far as it will go ( the spring is now fully "on block"), then adjust
the tension again to the working load by rotating the endless screw
(9) in the "-" direction.
A WARNING: To prevent spring destruction, do not slacken it
too much! Full spring release is permitted only if no load is
connected!
Infinitely variable load adjustment is possible within the balancer's
load range (see rating plate (1) for details). To adjust to lighter
working loads, simply rotate the endless screw (9) in the "-" direc-
tion; for heavier loads, rotate in the "+" direction. Note that the
balancer may not be operated outside the working range indicated
on the rating plate!
Cable stop buffer / Setting the cable extension
The cable stop buffer can be moved simply by moving the flexible
cable stop buffer and the cable clamp. The cable clamp should be
secured each time.
A
WARNING: The maximum cable extension length must not be
exceeded (even with a cable extension).
Drum lock
The drum lock (10) allows you to block the drum for cable replace-
ment, without any need to unload the spring (see description under
replacing the cable)
Maintenance
Servicing / Inspection
The balancer must be serviced continuously. All external moving
parts as well as the friction points on the suspension and spring
hook must be greased. For cable care, we recommend non-corros-
ive grease because it significantly increases the cable's useful life.
EN
The suspension, the safety chain, the spring hook and the cable
must be monitored continuously and needs to be checked by a
competent person at least once a year. If damage (such as broken
strands, "cage-type" bulging, flattened places or abrasion) is found
on the cable, or if any of the above-mentioned parts show signific-
ant signs of wear and tear, the balancer must be withdrawn from
service and replaced immediately. Should the cable, spring or
other parts of the balancer need to be replaced, pre-assembled re-
placement sets are available.
Maintenance
The following sections refer exclusively to our pre-assembled re-
placement sets: cable, spring & cable drum, housing, and suspen-
sion. Be sure to use only genuine spare parts for replacement.
When replacing any of the above-mentioned components, always
follow the Operating Instructions supplied with the product.
Replacing the cable
This balancer allows you to replace thecable without releasing the
spring tension or taking the system apart.
Pull out the cable up to the cable extension limit stop, then press
the blocking device to unlock the cable extension stop mechanism
and pull out the cable as far as possible(the cable coupling/mount
is now visible in the lower region of the housing slot).
Using a screwdriver, lock the cable drum by first pressing the
locking bolt of the drum lock (10) inwards as far as it will go and
then turning it clockwise by approx. 90 degrees.Make sure that
the bolt is securely arrested and the cable drum securely locked
as a result! Remove the working load. Disengage the cable by
pushing it back into the housing (use a screwdriver for support if
required), then remove it. Take a new cable and bend it slightly
towards the cable drum, then push it through the housing slot and
anchor it in the drum. Be sure to install the cable correctly: it must
engage noticeably with the guiding groove.
A
An incorrectly anchored cable may slip out of its coupling under
load and cause injuries or other damage as a result of the load
crashing down!
Hook the load and unlock the cable drum by pressing down the
locking bolt (10) again, then turning the unloaded bolt anticlock-
wise until it disengages and snaps back into its original position.
Replacing the spring assembly with the spring
fracture safeguard
(A) Removal:
Retract the cable fully, then remove the load. In the event of
spring fracture, lock the cable drum as described under Replacing
the cable.
Take the balancer off its suspension.
Release the spring tension, proceeding as follows:
Apply a size 17 socket spanner to the endless screw (9), then
turn the spanner in the direction of the "-" symbol until the cable
no longer retracts. The spring fracture safeguard blocks the cable
drum.
A
To prevent destruction, do not slacken it too much!
Unscrew the housing cover and the cable drum cover, then remove
the spring assembly from the drum.
A
When replacing the spring assembly following spring fracture,
the housing, the cable and the cable drum must be checked
for damage and replaced as well where indicated, as high dy-
namic forces are released when spring fracture occurs and the
spring fracture safeguard mechanism is activated as a result
of this.