GROMMET 7Y8165 - Caterpillar

Welding Procedure
Table 1
Reference Parts
Item Part Number Part Description
1 263-7082 Block
2 266-6037 Dowel Pin(1)
(1) Use two dowel pins for every block.
Illustration 1 g01331274Note: The 263-7082 Block can be identified by mark (3).Note: The blocks should be welded to the rotor assembly. Use a wire or electric arc welding.
Preheat the block to approximately 200° 25°C (390° 45°F).
Place two dowel pins (2) in 194-6855 Rotor Assembly. Install blocks (1) on two dowel pins (2). Tack weld the block into position.Note: Two dowel pins (2) and 194-6855 Rotor Assembly are not shown.
Illustration 2 g01331362
Make sure that you cover bore (4) to protect the bore from any weld splatter.
Weld the block to the rotor assembly in 12 separate passes. Refer to Illustration 2 for the correct order to perform the welds.
Weld passes (A), (B), (C), (D), and (E) should be large enough to fill the gaps only. The welder should be placed at a setting of 240 amperes to 270 amperes.
Welds (F), (G), (H), and (J) should have a width of 15 to 20 mm (0.6 to 0.8 inch). The welder should be placed at a setting of 240 amperes to 270 amperes.
Weld pass (K) should be large enough to fill the gaps only. The welder should be placed at a setting of 200 amperes to 230 amperes.
Welds (L) and (M) should have a width of 15 to 20 mm (0.6 to 0.8 inch). The welder should be placed at a setting of 200 amperes to 230 amperes.
Once the block has been welded to the rotor assembly, allow the welded area to cool at a rate of 50 to 70 °C (122 to 158 °F) per hour. Do not use water or compressed air to cool the area of the welds.Wire Welding Process
The diameter of the wire should be 1.2 mm (0.05 inch). The type of wire is T1S AWS 5.28 ER 100S-1. Use a shield of 100 percent Carbon Dioxide.Process for Arc Welding
Table 2
Recommended Electrodes
Type International Classification
Electrode 17/11018-M (AWS A5.5 - 96)
Electrode 1002 AZ 150R (AWS - ASME II C)
Electrode Ine Basic 80 (AWS -A5.5 - E 10018M)
Electrode Ine Basic 80 Ø2,5 x 350 AWS - A5.5 -E 10018M)