15
6-5 CARE AND MAINTENANCE
Under normal working conditions, the PUK U3 needs only a minimum of maintenance
and care. However, it is necessary to observe a few vital points, to ensure that the device
remains operable, and gives lasting service in the years to come.
Regularly check all cables and plugs to make sure that they are not damaged.
Check the moving parts of the hand-piece to ensure ease of mobility.
Whenever necessary, clean the thread under the clamping nut of the hand-piece (see
Fig. 3 no. 24 on page 8), to ensure that the electrode has a perfect contact with the hand-
piece.
Warning !
IF FUSES NEED TO BE EXCHANGED; THESE ARE ONLY TO BE REPLACED WITH
FUSES OF THE SAME SPECIFICATION. USING FUSES OF A HIGHER VALUE WILL
INVALIDATE ANY WARRNTY CLAIMS !
The PUK U3 may only be opened by an electrician, electrical technician or other
qualified personnel who are familiarised with these products.
7
TECHNICAL DATA
7-1 TECHNICAL DATA
■
Device suitable solely for indoor-welding in dry surroundings!
■
Humidity
Max. 80 % up to 31°C,
Max. 50 % 31°C - 40°C
■
Elevation
Not over 2000m NN
■
Mains voltage
~115V/50-60Hz+/-15%
■
Fuse
T 6,3 A
■
Power input
400 VA
■
Closed-circuit voltage
20 – 43 V
■
Open-circuit voltage
43 V
■
Duty cycle X
80%
■
Max. charging time
0,8 s
■
Inert gas
min. ARGON 99,9%
■
Maximum Gas pressure
4 bar
■
Protection category
I
■
Insulation class
B
■
Degree of protection
IP 21S
■
Weight “PUK U3”
8,8 kg
