TANK A 2Y6691 - Caterpillar

Illustration 20 g00765116
Remove the bolts that secure handhold (33). Remove the handhold.
Remove plates (34) in order to access the weld nuts that were used to secure handhold (33). Remove the six weld nuts that were used to secure former handhold (33) .
Illustration 21 g00765121
Install the 192-6257 Handhold in place of handhold (33) with three 185-1721 Plate As (35) .
Position the 192-6257 Handhold and weld three 185-1721 Plate As (35) to the enclosure. Weld in two places along each of the long sides. Achieve a weld penetration of 3 mm (0.12 inch).Optional Attachments (Right Side)
Illustration 22 g00724583
Remove bolts that secure handhold (36) to the stairs. Remove the handhold.
Remove the two weld nuts which are closest to the stairs. Do not remove the other weld nuts.
Illustration 23 g00765131
Install handhold (36) with a 185-1721 Plate (37). Position the handhold, and weld the 185-1721 Plate to the bumper. Weld in two places along each of the long sides. Achieve a weld penetration of 3 mm (0.12 inch).
Illustration 24 g00724611
Remove the bolts that secure handhold (38) on the outside of the stairs and handhold (39) on the inside of the stairs. Remove the handholds.
Remove the right side stairs.
Illustration 25 g00765147
Remove three weld nuts (40) that secure the handhold to the stairs. Remove four weld nuts (41), four weld nuts (42), and four weld nuts (43). Remove the weld nuts from both sides of the stairs.
Illustration 26 g00765157
Remove "Z" channel (44) that is located under the top platform of the stairs.
Illustration 27 g00765160
Install 192-6208 Handhold on the outside of the stairs with a 185-1721 Plate As (45), a 149-2052 Plate As (46), and a 186-1102 Plate As (47).
Position the handhold and weld 185-1721 Plate As (45), 149-2052 Plate As (46), and 186-1102 Plate As (47) to the stairs. Weld in two places along each of the long sides. Achieve a weld penetration of 3 mm (0.12 inch).
Illustration 28 g00765162
Install handhold (39) onto the inside of the stairs with a 149-2052 Plate As (48) and a 186-1103 Plate As (49) .
Position handhold (39) and weld 149-2052 Plate As (48) and 186-1103 Plate As (49) to the stairs. Weld in two places along each of the long sides. Achieve a weld penetration of 3 mm (0.12 inch).
Illustration 29 g00766715
Position 202-9001 (50) against the top plate at point (C). Refer to illustration 8. Align the holes with the holes in the top threaded plate. Keep the flat surface of the boss parallel to the top threaded plate.
Weld 202-9001 Plate (50) to the stairs at both ends. Weld from point (C) to point (D) on the accessible side of the channel. Achieve a weld penetration of 3 mm (0.12 inch).
Install the stairs with two new 7T-8331 Mountings between the "Z" channel and the mounts on the platform.