10
von 37
V 07.17
Service Manual BXT3-13/16/19
ENGLISH
3.1.2
Welding and cutting procedure
Symptom
Possible cause
Rectification
The sealing surface
has not been welded
through completely.
1. The welding time has been set too low
2. The strap width setting does not correspond with the
strap in use.
3. The toothed plate # 9 has a tight fit
4. The ball guide of the swivel bearing # 153 or the
welding shoe # 158 are worn.
5. The base plate is bent.
– Increase the welding time. See opera-
ting instructions (chap. 4.5).
– See the operating instructions (chap.
5.3).
– Remove contamination, replace the
toothed plate and / or bolts if
necessary
– Replace the swivel bearing and / or
welding shoe
– Replace the base plate.
The welding time must
be set extraordinarily
high for sufficient wel
-
ding. Unusual noises
during sealing
1. The sliding surfaces of the welding shoe are worn.
– The sealing shoe and, if necessary, the
needle sleeve must be replaced. En-
sure to lubricate sufficiently to prevent
wear.
The strap is not cutting
the strap although the
knife has not been
worn yet.
1. The welding time is too short
2. The spring above the knife is not present or not
functional
3. The strap thickness is outside the device specifica
-
tion
4. The knife may be too coarse for very thin and narrow
strap.
– Increase the welding time. See opera-
ting instructions (chap. 4.5).
– Check spring # 168.
– Check the strap dimensions. See ope-
rating instructions (chap. 5.3).
–
Slightly grind the knife with fine emery
cloth.
The strap tears during
the sealing procedure.
1. The welding time is set too long. The bottom strap,
being under tension, is getting affected
2. The strap tension is set too high for the strap used.
– Reduce the welding time.
– Reduce the tension level
Part of the weld joint is
tearing at opening of
the tool
1. At the strapping site lubricants could be in use that
have contaminated the strap. During the sealing proce-
dure, the lubrificant is affecting the welding.
– Query the application.
Instead of the sealing
noise, only a quiet
rustling of the motor
can be perceived.
Then an E53 error
code appears. Typical-
ly, this does not occur
for every strapping.
1. The sleeve freewheel installed in the belt wheel has
malfunctions and does not transfer the torque correctly.
It is probably contaminated with grease or other foreign
objects.
– Replace the belt wheel # 126. Atten-
tion! No grease may enter the free-
wheel. Lubricate only with light oil.
