Carl Stahl Kromer 7230 0000 01 Instrucciones De Empleo página 36

Push the cable upwards out of the cable drum, remove the
bush from the cable and pull the cable downwards out of
the zero gravity balancer.
Introduce a new cable from below through the housing
mouth and the hole in the cable drum ("Tunnel") and push it
through upwards. Push the bush over the cable onto the
ferrule. Pull the cable in downwards into the cable drum
hole ("Tunnel"). Ensure correct coupling: the cable with the
bush must be clearly and distinctly anchored in the cable
drum.
Suspend the working load and set the cable drum in motion
by pulling the cable out slightly and pulling the steel pin out
of the locking device.
An incorrectly anchored cable can break out of the
coupling under load and cause consequential damage.
Suspend the working load and set the cable drum in motion
by first pressing in the fixing pin and then, optionally unloa-
ding by 90°, turning it right or left, until it jumps back into
the original position.
Exchanging the spring
☞ (A) Dismantling:
Feed in the cable to the cable stop and disconnect the wor-
king load. Then disconnect the device.
Release the spring:
place a size 17 socket wrench on the endless screw. Turn
the wrench in the direction of the "-" symbol (anti-clockwi-
se) until the cable stop buffer is no longer up against the
housing. The spring fracture safety device is now locking
the cable drum.
Never release the spring beyond full unload, or it will
be destroyed.
Screw off the housing cover. Screw off the cable drum
cover. If necessary, correct the spring tension for full relief.
Remove the spring from the cable drum. To do this press
the spring fracture safety device pin fully outwards and lock
it in this position with the supplied strip.
The damaged spring is replaced with a new one. If a diffe-
rent strength of spring is used, the type details and the load
range on the nameplate are to be altered accordingly.
☞ (B) Assembly:
Insert the spring into the cable drum. To do so, the external
spring suspension must point to the left and engage in the
groove in the housing. The internal spring suspension must
engage in the groove in the spring locking device so that
trouble-free operation is possible, turning the spring locking
device if necessary with the load-adjusting endless screw
so that the internal spring suspension can slide into the
groove the spring locking device. Release the pin of the
locked spring fracture safety device again.
Screw on the cable drum cover, using new lock washers to
do so. Secure screws with Loctite 241 screw-locking
sealant. Then screw on the housing cover, again using new
lock washers.
Comment on type 7231:
In each assembly phase, the detent pawls must outside on
the drum cover.
To pretension the spring see Adjusting the load.
Replaced springs must be properly dispose of.
CAUTION: Springs can fly out when bandings or
rivets are removed and can cause injuries.
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Changing the housing
The replacement part set "housing complete" consists of
the housing with cover, 3 screws with lock washers, name-
plate and assembled anti-fall arrangement, nameplate and
mounted anti-fall arrangement.
☞ (C) Dismantling:
The housing is partly dismantled, as described in Exchan-
ging the spring (see ☞ [A]). The spring is removed.
Unscrew the housing cover.
Remove the spring locking device retaining ring in the cable
drum with special pliers. Take the cable drum out of the
housing. Unwind the cable and lift it out of the cable drum.
Remove the suspension from the housing. Unwind the
cable, push the cable end upward out of the cable drum,
remove the bush from the cable. Pull the cable downward
out of the housing. Then pull the spring locking device out
of the cable drum.
Remove the suspension on the housing: Remove the split
pins, washers, pin and hook from the housing.
Label the nameplate (with a ball-pen).
☞ (D) Assembly:
Mount the suspension on the new housing, using new split
pins to do so.
Insert the cable from below through the housing mouth and
through the hole in the cable drum ("Tunnel") and push it
upward. Push the bush over the cable onto the ferrule and
pull the cable end fully into the guide slot (see Changing the
cable).
Insert the cable drum into the housing and using special
pliers fasten the retaining ring in the slot on the spring
locking device. Wind up the cable by turning the cable
drum.
Ensure correct winding up in the cable groove.
Assemble further as described in Exchanging the spring
(see ☞ [B]).
Changing the cable drum
The replacement part set "cable drum complete" consists
of the cable drum and cover with 3 screws and lock was-
hers with spring fracture safety device already installed and
a strip for locking the pin of the spring fracture safety devi-
ce. The zero gravity balancer is dismantled as described in
Changing the housing (see ☞ [C]). However, the suspensi-
on on the housing is not removed.
Assembly is carried out as described in Changing the hou-
sing (see ☞ [D]) (without installing the suspension).
Changing the suspension
The replacement part set "suspension complete" consists
of the safety hook, the split pin, plain washer and the pin.
Remove the suspension split pin, plain washer and pin from
the housing. Remove the hook. Insert a new hook, push the
pin through and secure with the plain washer and a new
split pin.