P62.25-2574-07
1 Drill holes for plug welding in area A on upper firewall bottom section (1) and grind connection surfaces on both sides.
P62.25-2602-07
2 Mark cut on upper firewall top section (2) according to removed old part along dotted line in area D.
3 Cut on upper firewall top section (2) along dotted line in area D.
4 Expose spot welds in areas B and C on upper firewall top section (2) and cut out.
5 Remove upper firewall top section remaining section (2.2)
P62.25-2576-09
6 Grind joint on connection surface down to bare metal in area N on upper firewall top section (2).
7 Grind connection surfaces down to bare metal in areas E and F on upper firewall top section (2) on one side.
8 Grind connection surface down to bare metal in area Q on upper firewall top section (2) on both sides.
9 Drill holes for plug welding in areas G to M on upper firewall top section (2) and grind connection surfaces down to bare metal on both sides.
10 Grind connection surfaces down to bare metal in area P on upper firewall top section (2) on both sides. Coat insides of spot welding flanges with zinc dust paint.
P62.25-2577-11
11 Grind connection surface down to bare metal in area R on inner reinforcement on one side.
12 Drill holes for plug welding areas S to W on inner reinforcement and grind connection surfaces down bare metal on both sides.
13 Grind connection surface down to bare metal in area X on inner reinforcement on both sides. Coat insides of spot welding flanges with zinc dust paint.