Valid for serial no.0349 301 032 R
LAY 500
112101103105107109111102021110025108024042106023061104022041100020040060001
Spare parts list
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8. SPARE PARTS LIST
Fig. 8-1. Welding power source Lay 500 –front view
No. Quantity Part No Description Symbol
In circuit
1
2
3
4
5
6
7
8
9
10
11
12
13
14
1
1
1
1
3
1
1
1
1
3
2
3
1
1
0349 302 075
0349 302 023
0349 302 025
0349 302 024
0457 290 003
0349 302 026
0457 290 004
0457 290 006
0349 302 068
0349 302 022
0349 302 017
0349 302 009
0455 172 001
0455 174 001
Front cover
Rotary cam switch
Rotary cam switch
Rotary cam switch
LED-holder (socket)
LED diode (green/yellow)
LED diode (green)
LED diode (yellow)
U/I LA01 meter (circuit board)
Current connector - socket
Side panel
Capacitor 2µF/450V
Protection glass
Seal
Q1
Q3
Q4
H1
H3
H2
“ - ”
C1, C2, C3
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Fig. 8-2.Welding source LAY 500 - side view
No. Quantity Part no Description Symbol
In circuit
30 1 0349 302 163 Transformer with switches T1
31 1 0349 302 003 Inductor L1
32 1 0349 302 004 Control transformer T2
33 1 0349 302 005 Electronic PCB
34 1 0349 302 006 Cooler-fan case
35 1 0349 302 007 Cooler
36 1 0349 302 008 Tank
37 1 0349 302 029 Pump M2
39 1 0349 302 034 Rectifier bridge V3
40 1 0349 302 046 Contactor K1
41 1 0349 302 036 Shunt RI
42 1 0349 302 027 Circuit breaker Q2
43 1 0349 302 028 Flow switch B3
44 1 0349 302 048 Temperature switch B2
45 3 0457 290 047 Fuse socket
46 - - - -
47 1 0349 302 030 Fuse element 2A F1
48 1 0349 302 031 Fuse element 4A F2
49 1 0349 302 035 Fuse element 8A F3
50 1 0349 302 011 Base frame
51 1 0349 302 166 Roof
52 1 0349 302 018 Handle
53 1 0457 290 063 Fan M1
54 1 0349 302 021 Filler plug
55 2 0349 302 038 Hub cap
56 2 0349 302 037 Wheel
57 2 0457 290 026 Fixed wheel assy
58 - - -
59 1 0349 302 020 Chain
60 1 0349 302 165 Shelf
61 1 0457 290 042 Temperature switch B1
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Fig. 8-3. Welding source LAY 500 – back view
No. Quantity Part No Description Symbol
In circuit
70 1 0349 302 014 Rear shield
71 1 0349 302 010 Supply cable
72 1 0457 289 032 Cable gland
73 1 0365 803 011 Quick detachable coupling (inlet)
74 1 0365 803 012 Quick detachable coupling (outlet)
75 1 0349 302 022 Current connector - socket “ + ”
76 1 0368 544 005 Receptacle for socket contact X1
77 1 0457 289 033 Locknut
78 3 0193 513 105 Socket
79 1 0349 302 050 Plug
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8.1 Assembling of KIT 0349 302 208 to increase stability of LAY 500 power source
KIT ASEMBLY INSTRUCTION
1. Put the power source LAY 500 on the even surface and block rear wheels.
2. Lift the front of LAY 500 and disassemble both wheel sets.
3. Assemble the bracket and both wheel sets by means of screws disassembled earlier (4 pieces) and
screws from the kit (8 pieces) to LAY 500 unit.
SET OF ELEMENTS – KIT 0349 302 208
Pos. Quantity Element Number
1 1 Bracket 0349 302 209
28Screw M8x16
3 16 Washer 8,4
48Nut M8
Warning: When the unit is tilted by more than 10
0
during operation, there is a risk that it might fall
over. In order to increase stability of the unit when holder with support arm of wire
feeder is applied, the kit presented above shall be assembled. The kit shall be assembled
according to the attached instruction.
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9. ORDERING OF SPARE PARTS
When ordering spare parts, quote unit type, serial, number, marks and numbers of spare parts shown in the
list. This is shall simplify procedure and ensure proper delivery
10. SCHEMATIC DIAGRAM
Fig.10-2. LAY 500 schematic diagram (with meter LA01 with HOLD function)
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INSTRUCTION FOR INSULATION RESISTANCE MEASUREMENT.
It is recommended to measure the insulation resistance at least every 2 years, and also after each repair of
the machine.
The insulation resistance measured with 500V megaohm meter should not be lower than:
- 5,0 MOm between input circuit (mains plug L1, L2 or L3) and output circuit (output terminal XB1 (+))
- 2,5 MOm between input circuit (mains plug L1, L2 or L3) and control circuit (terminal X1 for connecting wire
feeder)
- 2,5 MOm between input circuit (mains plug L1, L2 or L3) and housing (grounding pin)
- 2,5 MOm between output circuit (output terminal XB1 (+)) and housing (grounding pin)
- 2,5 MOm between control circuit (terminal X1 for connecting wire feeder) and housing (grounding pin).
To perform the measurement:
Mains power switch Q1 must be set to position I (ON), contacts of contactor K1 must be shorted, shorten
contacts of terminal X2 on LA07 board, switch Q2 must be set to position I (ON), shorten “+” and “-“ output
terminals, shorten contacts of terminal X1.
After the measurement the machine must be returned to its initial status.
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