SEGMENT-QUARTER AUGER 8T8008 - Caterpillar

Welding Requirements
Welding quality is critical to the success of the installation procedures. Welds must be smooth and continuous. Do not undercut the welds. No overlap is allowed. Grind the ends of the welds to a smooth radius.Prepare the metal for welding according to the next section. Refer to the illustrations in this special instruction for welding symbols and specifications.All electrodes must be dried completely. The electrodes can be dried by heating the electrodes to 300°C (572°F). The electrodes must be dried for at least 30 minutes.Do not weld in windy conditions. Do not weld when temperatures are below 16°C (60°F).Penetration characteristics may vary greatly depending on the following conditions:
Electrode diameter
Shielding gas
Welding current
Plate thicknessThe following items also affect the welds:
Geometry of welded joints
Surface conditions
Composition of the base metal and of the electrodeA root pass should be applied before each weld is finished.Maintain a 3 mm (0.12 inch) minimum root opening on all cross welds and circle welds.For more welding information, consult the Caterpillar Service Welding Guide, SEBD0512.Preparing the Metal for Welding
All grease, paint, and foreign objects must be removed before welding. Any of these materials will discharge gas which will cause porosity in the weld deposit. Water and rust will cause hydrogen embrittlement. Hydrogen embrittlement causes cracks in the weld deposit.Remove foreign objects with a wire brush, a buffer, or a grinder. Shot blasting the appropriate areas will also remove foreign material.Remove any oil or grease with a Caterpillar approved solvent.Note: After welding, allow all areas to cool to room temperature. After the areas have cooled, paint the area with primer. After the primer has dried, coat the area with Caterpillar 4C-4200 Yellow Paint .Installation Procedure of 343-8342 Hydraulic Kit
Illustration 2 g03329798
Location of hydraulic kit
Illustration 3 g03329846
Location of components on the boom (location A-A) (1) 4I-9521 Marker Band ( Red) (2) 4I-9522 Marker Band ( Yellow) (4) 196-9994 Union As (5) 343-8343 Hose As (6) 344-6276 Hose As (7) 164-5570 Union As (9) 323-6157 Permanent Coupling As
Attach one red marker band (1) to one hose (5) .
Use one coupling (9), one union (7), and one union (4). Attach the hose to the hose on the boom with the same red marker band.
Attach one yellow marker band (2) to one hose.
Use one coupling (9), one union (7), and one union (4). Attach the hose to the hose on the boom with the same yellow marker band.
Attach one red marker band (1) to the opposite end of the hose (5) that was initiated in Step 1.
Attach one yellow marker band (2) to the opposite end of the hose (5) that was initiated in Step 3.Note: Perform Step 7 for both hoses (5) until the hoses has been secured thoroughly.
Use the cable strap (12) as needed to secure the hose (5) to the existing hydraulic lines.
Attach hoses (6) to both previously installed hoses (5) using union (7) .
Attach one red marker band (1) to the hose (6) that was connected to hose (5)