ABB REX 521 Operating Manual Download Page 17

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Cutti ng Tool

O p e r at in g G ui d e 17

9. Finishing the work

2. Push the new replacement relay firmly against the
panel cut-out.

1. It is advisable to coat bare surfaces, for example
with cold galvanized compounds, in case of corrosive
atmosphere.

Install the new replacement relay.

3. Add the four fixing brackets.

4. Tighten all the four fixing bracket screws step by
step. Use tightening torque of 1.3...1.7 Nm.

Summary of Contents for REX 521

Page 1: ... OPER ATING GUIDE Relay Retrofit Program for REX 521 Cutting Tool Operating Guide ...

Page 4: ... widen the existing cut out To the left or to the right depending of the switchgear lay out free space on it Figure 2 Left cutting Figure 3 Right cutting Figure 1 REX521RRP with REF615 replacement relay C A B C A B A 179 mm 1 new cut out width B 136 mm 1 old cut out width C 254 mm 1 ...

Page 6: ... the work before before installing REX521RRP Note The file is not included in the cutting tool kit 1 3 2 4 5 6 7 6 1 Cutting head 2 Offcut gatherer part of the cutting head 3 Vent lever 4 Operating switch 5 Power unit 6 Battery 7 Battery charger Figure 7 Cutting tool kit components Figure 8 File ...

Page 8: ...o the feed rod 2 Notice the position of the REX 521 marking on the punch 3 Install the two coil springs 5 to their slots in the punch 3 4 Install the die 6 to the feed rod 2 Ensure the correct die position with the marking in the die Check that the coil springs 5 go to their slots in die ...

Page 9: ...the nut so that the hole in the nut and the groove in the feed rod are aligned Add the lock pin 8 to the hole in the nut 8 Add the gatherer 9 to the die 6 part of the cut ting head with M6 socket screws 10 Use tightening torque of 4 2 5 2 Nm The cutting tool kit includes a socket screw key ISO 2936 5 for the M6 screws ...

Page 10: ...de 9 Check and correct the gatherer alignment with the cutting head Ready installed cutting head with the gatherer After assembling the cutting head insert the bat tery to the power unit The battery can be inserted from either side ...

Page 12: ...tting Tool Operating Guide 6 Release the four fixing brackets 4 Release the protective ground wire 5 After the wires have been released the whole de vice can be released Remove the four fixing bracket screws ...

Page 13: ...yout free space For your safety keep your hands on the power unit never on the cutting head Beware of the sharp edges Use safety gloves protective glasses hearing protectors and a hard hat 7 After releasing all the four fixing brackets remove the device 2 Check that the cutting head is correctly installed The marking REX 521 should be on the same side on the punch and the die ...

Page 15: ...Cutting Tool Operating Guide 15 The fourth cut 7 For the fifth cut push the cutting head which is guiding the faces firmly against the bottom side edge ...

Page 16: ...he relay compartment to avoid spreading dust 1 After each relay cut out ten separate cuttings empty the offcut gatherer For safety reasons remove the battery first Ensure that no offcuts remain inside the switchgear if the offcut gatherer was not used 8 Finalizing the cutout 4 Clean dust and any remaining offcuts ...

Page 17: ...ainst the panel cut out 1 It is advisable to coat bare surfaces for example with cold galvanized compounds in case of corrosive atmosphere Install the new replacement relay 3 Add the four fixing brackets 4 Tighten all the four fixing bracket screws step by step Use tightening torque of 1 3 1 7 Nm ...

Page 18: ...de wire connectors with their fixing screws to the male side connectors Use a type PH 0 or PZ 0 ISO 8764 2 screwdriver Use tightening torque of 0 2 Nm 8 Finish the work and close the door 7 Install the current and voltage wires Only use screwdriver and insert bits for Phillips PH 1 cross recessed screws M3 5 Use tightening torque of 0 8 1 2 Nm ...

Page 19: ...Cutting Tool Operating Guide 19 ...