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oil, however do not dismantle the pressing jaw! Remove any deposits in the
pressing contour (11). Check that all pressing tongs are func tional at regular
intervals by a trial pressing operation with the press fitting inserted. The pressing
jaws (10) must close (10) both at their tips (Fig. 1, at "A") and at the level of
the connecting link (Fig. 1, at "B") after completion of pressing. Do not use
damaged or worn pressing tongs again. If in doubt, return the drive unit together
with all pressing tongs to an authorised heima-press after-sales service facility
for inspection.
4.1.2. Radial presses
Keep the press tongs receptacle clean, in particular clean the press rollers (5)
and tongs shank (2) at regular intervals and then lubricate them with machine
oil. Check the functional reliability of the drive unit regularly by making a pressing
with the largest press fitting used. If the pressing tongs close completely during
this pressing operation (see above), the drive unit is functionally reliable.
4.2. Inspection/repair
WARNING
Before any repair work, pull the mains plug! This work may only be performed
by qualified personnel.
The gearbox of the heima-press POWERline drive unit is maintenance -free.
They operate in a permanent grease filling and therefore require no lubrication.
The motor of the heima-press POWERline drive unit has carbon brushes. These
are subject to wear and must therefore be inspected or replaced from time to
time. Only use genuine heima-press carbon brushes. If the pressing power is
insufficient or oil is lost, the drive unit must be inspected and if necessary
repaired by heima-press or by an authorised heima-press after-sales service
facility.
NOTICE
Damaged or worn pressing tongs cannot be repaired.
5. Trouble
For preventing damages make sure to avoid operating situations like exempla-
rily shown in Fig. 3 through 5, that no distortion between pressing tongs, fitting
and drive unit occurs.
5.1. Trouble: Drive unit does not operate.
Cause:
● Worn carbon brushes.
● Mains lead defective.
● Drive unit defective.
5.2. Trouble: Radial press does not finish pressing operation, pressing tongs
do not close completely.
Cause:
● Drive unit overheated.
● Worn carbon brushes.
● Slipping clutch defective.
● Drive unit defective.
● Incorrect pressing tongs (pressing contour, size) inserted.
● Pressing tongs with stiff action or defective.
5.3. Trouble: During closing of the pressing tongs, a marked ridge is created
on the compression sleeve.
Cause:
● Damaged or worn pressing tongs/pressing contour.
● Incorrect pressing tongs (pressing contour, size) inserted.
● Unsuitable matching of compression sleeve, pipe and support
5.4. Trouble: Pressing jaws close unevenly when the pressing tongs are not
loaded at "A" and "B" (Fig. 1).
Cause:
● Pressing tongs have been dropped, compression spring is
bent.
6. Disposal
The drive units may not be thrown into the domestic waste at the end of use.
They must be disposed of properly by law.
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