Location Of Connections; Pin Brazing - BAC EASYBOND MK2 Operation And Maintenance Manual

7.4

LOCATION OF CONNECTIONS

The desired position of the required pin braze area should be accurately marked on the steel.
Do not use any oil based marker e.g. spray paint, as this will contaminate the grinding burr.
When pin brazing onto a coated pipeline then sufficient coating needs to be removed in order to
accommodate both the earth device and area of the pin braze, this would be a minimum of 14
cm x 4 cm using the standard earth device. If the earth device is placed on a separate earth
point on the pipe then the area required at the pin braze point will be a minimum of 4 cm x 4 cm.
7.5

PIN BRAZING

1. The magnetic earth device must be applied to the cleaned surface to ensure a sound
electrical circuit.
2. The brazing gun must be correctly adjusted with the correct pin and ferrule fitted.
3. Locate the brazing pin so that the pin is in the centre of the hole in the cable lug. For vertical
surfaces, the pin must be at the upper part of the hole in the cable lug.
4. Apply sustained pressure on the brazing gun so that full contact is made between the ferrule
and the bond attachment (or the steel surface when using threaded pins).
5. When the operator is ready to braze, he should look well to one side to protect his eyes from
glare. The operator's stance should be stable to enable this movement to be made without
altering the critical positioning of the gun.
6. Hold the gun firmly and close the circuit by squeezing the trigger.
BAC Document Number: Easybond MKII Manual V03
STEP FOUR
Figure 7
28/08/13 Page 15 of 32