CAM AS-SPIDER 8R9831 - Caterpillar

Introduction
This Special Instruction contains the directions for relocating the fuel suction port on D6N Track-Type Tractors that are equipped with 392-6886 Fuel Tank Gp or 392-6891 Fuel Tank Gp.Do not perform any procedure in this Special Instruction until you have read the information and you understand the information.Safety Section
Applying heat to a tank which has held flammable liquids, even when empty, can result in residual flammable liquid or vapor igniting with explosive force.Personal injury or death can result from an explosion.Do not weld or flame cut on any tank that has held flammable liquid without taking the proper precautions such as filling the tank with either inert gas or water.
Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting, and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids.Refer to Special Publication, NENG2500, "Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Cat® products.Dispose of all fluids according to local regulations and mandates.
The fuel tank and/or hydraulic tank must be drained of all fuel and/or oil so that there is no residual fuel and/or oil left in the tank.
Reference Section
Reference: Operation and Maintenance Manual, SEBU9220, "Fuel Tank Water and Sediment - Drain"Reference: Disassembly and Assembly, UENR4082, "Fuel Tank - Remove and Install "Reference: Special Instruction, REHS1841, "General Welding Procedures"Required Parts
Table 1
Required Parts
Item Qty Part Number Description
1 1 034-3679 Adapter
2 2 238-5080 O-Ring Seal
3 520 mm (20.47 inch) 347-8646 Hose
4 1 3K-0360 O-Ring Seal
5 1 426-1821 Boss
6 2 5P-4961 Hose Clamp
7 1 9S-4185 Plug Installation Procedure
Drain the fuel tank.
Illustration 1 g06119023
Remove the rear guard box to gain access to the fuel tank. Remove bolts (8) and bolts (9). Remove cover (10).Note: If the machine is equipped with a winch, it may be required to remove the fuel tank to proceed to the fuel suction port modification. Refer to the Disassembly and Assembly manual.
Illustration 2 g06119162
(A) 161 mm (6.34 inch)
(B) 10 mm (0.394 inch)
(W1) 3 mm (0.118 inch) Fillet weld
Cut a 40 mm (1.575 inch) diameter hole in 392-6889 Bottom on the fuel tank. Refer to Illustration 2 for the location of the new hole.
Clean inside the fuel tank. If needed, use a magnet to ensure that there are no metal chips left inside the fuel tank.
Weld boss (5) to the new hole. Refer to Illustration 2 for the weld instructions. Repaint the new boss.
Illustration 3 g06119169
Remove and retain existing ball valve (11). Discard hose (12). Plug the current suction boss with plug (7) and seal (4).
Illustration 4 g06119170
Install ball valve (11) on boss (5) with one seal (2). Install adapter (1) onto ball valve (11) with one seal (2).
Connect 520 mm (20.47 inch) of hose (3) to fuel filter (13) and adapter (1). Secure each end of hose (3) with hose clamps (6).