Instruction Manual
EK 22 plus
page 7
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4. Description of the electric-hydraulic crimping unit
4.1. Description of the components
The electric-hydraulic crimping unit type EK 22 Plus is a hand held
tool and consists of the following components:
Table 1 (see Picture 1 page 2)
Pos.-
No.
Description
Function
1
Trigger
switch to start crimping procedure
2
Retract
button
button to open the dies in case of
emergency
3
Latch
device to open/close the crimping head
4
Retaining
clips
button to unlock/remove the dies
5
Housing
ergonomically formed plastic housing
for perfect handling with a detachable
lid
6
Light diode
display
indicator for tool functions and battery
charge control
7
Battery
cartridge
rechargeable NiCd battery
8
Trigger lock
safety lock to guarantee that no
unintentional processes can occur.
9
Removable
hand guard
guard to protect the operating hand, not
for transportation
10
Dies
interchangeable crimping dies
4.2. Brief description of the important features of the unit
-
The hydraulic unit incorporates an automatic retraction which
returns the piston into its starting position when the maximum
operating pressure is reached.
-
The unit is equipped with a special brake which stops the forward
motion of the piston/dies when the trigger (Pos.-No. 1) is released.
-
The unit is equipped with a double piston pump which is
characterised by a rapid approach of the dies (Pos.-No. 10)
towards the connector and a slow crimping motion.
-
The crimping head can be smoothly turned by 360° around the
longitudinal axis in order to gain better access to tight corners and
other difficult working areas.
-
The EK 22 Plus is equipped with a microprocessor which indicates
service intervals, internal checks and low battery charges. It also
shuts off the motor automatically after the crimp is completed.
4.3. Description of the light diode display
This tool is equipped with a special circuit board incorporating
several important features to inform the user about the current status
of the unit. The diode (Pos.-No. 6) signals in the following cases:
- The diode will signal periodically a few times while the battery
(Pos.-No. 7) is being inserted into the tool. This indicates that the
electronic circuitboard performed its self-test successfully.
-
If the diode signals continuously after a crimping cycle for approx.
20 sec. the battery is discharged and must be recharged again.
- Does the diode signal periodically at the end of a crimping 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 periodical ly
at the end of an pressing cycle. The signal indicates in this case the
circuit opening by the electronic fuse. A possible reason for that is
that a pressing 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.
- Signals the LED (Pos.-No. 6) for 20 s continuously and then
periodically a service is due and simultaneously the battery is
discharged.
5. Remarks in respect of the determined use
5.1. Operation of the unit
Before starting any work on electrical appliances it must be safeguarded
that there are no live parts in the immediate assembly area of the user. Is
this not possible special precaution measures
1
for working near live parts
must be provided.
Now you have to select the right dies (Pos.-No. 10) for the intended
application.
Attention
Don’t operate the tool without dies.
The crimping head has to be opened by unhooking the latch (Pos.-No. 3 &
Picture 2 Pos. A). Afterwards the retaining clips (Pos.-# 4) have to be
actuated (Picture 2 Pos. E) while the dies will be inserted sideways into the
open crimping head. After having completely closed the crimping head the
trigger lock (Pos.-No. 8) for the trigger (Pos.-No. 1) must be released,
which means that it is pushed down (Picture 2 Pos. D).
Prior to operating the unit the charging level of the battery (Pos.-No. 7)
should have been tested
2
. A low charging level can be detected by the
flashing of the LED (Pos.-No. 6) for 20 s at the end of a crimping cycle.
The crimping procedure is initiated by actuating the trigger (Pos.-No. 1 &
Picture 2 Pos. C). The crimping process is defined by the closing motion of
the dies. During that process the connecting material is positioned in the
stationary half of the die whereas the moving part of the die is approaching
the compression point
3
.
The crimping process is terminated when the crimping force is reached.
After having completed the crimp the dies return into the starting position
automatically. Afterwards a second crimping cycle can be initiated or the it
can be finished by opening the latch (Pos.-No. 3 & Picture 2 Pos. A).
Attention
After having terminated the crimping process
and prior to changing the dies the trigger (Pos.-
No. 1) has to be locked with the trigger lock
(Pos.-No. 8) to avoid unintended use.
In case of error or emergency the dies can be returned into the starting
position by actuating the retract button (Pos.-No. 2 & Picture 2 Pos. B).
Attention
The crimping process can be interrupted at any moment
by releasing the trigger.
1
See EN 50110-1
2
See Chapter 5.5 for more information of the battery and charging unit
3
See picture 4 page 2
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