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4. description of the electric hydraulic
pressing unit
4.1. Components
the electric hydraulic pressing unit type uP75 is a hand-
held unit and consists of the following components.
table 1 (see Picture 1)
Pos. description
1
trigger
2
retract button
3
locking pin
4
Pressing head
5
Housing
6
lED display
7
Battery
8
Hand guard
9
Battery locking spring spring to hold the battery
4.2. short description of the unit's key features
- the unit incorporates an automatic return function,
which returns the drive rolls to their starting position
when the maximum operating temperature is reached.
- the unit is equipped with a special brake which stops
the forward motion of the dies when the trigger
(pos. 1) is released.
- the unit is equipped with a double piston pump which
is characterised by its rapid forward motion and slow
pressing motion.
- the pressing head (pos. 4) can be smoothly turned by
360° in order to gain better access to difficult working
areas
- the uP75 is controlled by a microprocessor which
turns off the motor when pressing is complete, dis-
plays service intervals and the charge level of the bat-
tery (pos. 7), and carries out error diagnosis.
4.3. the led display
uP 75 – 02/2008
Function
operating switch to start
the pressing process
Button to retract the
piston in case of error or
emergency
Bolt to lock the pressing
jaws
receiving the pressing
jaws
Ergonomically shaped pla-
stic housing with tank lid
Indicator for battery
charge level and other
functions of the unit
rechargeable ni-mH
battery
Protects the hand of the
operator
in place
this tool is equipped with a special circuit board incor-
porating several important features to inform the user
about the current status of the unit. the diode (Pos. 6)
signals in the following cases:
signal
duration
When it
occures
a few seconds
battery
of flashing
insertion
glowing for
after crimp
20 seconds
flashing for
after crimp
1)
20 seconds
(2Hz)
flashing for
During high
20 seconds
temperature
2)
(5Hz)
20 sec. glow-
after crimp
ing
and flashing
intermittently
1)
Does the diode signal periodically at the end of a working cycle for
approx. 20 sec the unit must be returned to an authorised service
center for service as soon as possible.
- In case of an error the light diode display also signals periodically
at the end of a working cycle. the signal indicates in this case the
circuit opening by the electronic fuse. a possible reason for that
is that a cycle was performed with an incorrectly low battery. If
the signal occurs even after changing the battery there must be a
different error or a service is due. In these cases the tool must be
returned to the manufacturer or an authorised service center.
the unit switches off when it gets too hot. It switches on automati-
2)
cally after the unit cooled off.
5. guide for intended use
Before starting work, the charge level of the battery
should be checked. a low charge level can, for example,
be detected by a 20 second illumination of the lED dis-
play (pos .6) at the end of a test press. (see section 4.3)
5.1. Operation of the unit
Firstly, the pressing jaws to be used should be checked
for possible damage or dirt in the compression area. If
they come from a different manufacturer, it is also nec-
essary to check that they can be used with our unit. to
insert or change the pressing jaws, please follow pictures
2 - 4 (locking), resp. 5 - 7 (unlocking).
made by
®
A Textron Company
What it
means
self check –
o.K.
battery
discharged
return for
service
unit too hot
service required
and battery flat
11
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