SWITCH AS 7E1794 - Caterpillar

Illustration 11. Remove the two fuel line brackets from the left side of the aftercooler housing on DITA Engines or at the 9Y1112 Bracket Assembly on DIT Engines. New mounting bolts and washers will be used. Keep the 9X6458 Washers, they may be needed as spacers. The 9Y1112 Bracket Assembly is the large bracket on DIT (non-aftercooled) Engines used to support the fuel line brackets. This bracket is part of the 6N5140 Fastener Group.
2. Remove the complete clamp assembly from the number 4 and 6 fuel lines at the front of the aftercooler housing or the 9Y1112 Bracket Assembly. This bracket is to the right of the tower clamp assembly. A new mounting bolt and washer will be used. Keep the 9X6458 Washer it may be needed as a spacer. On DIT Engines only, remove the mounting bolts for the tower clamp assembly and the fuel line brackets at the right side of the 9Y1112 Bracket Assembly. Carefully remove the 9Y1112 Bracket Assembly and install the new 6I0348 Bracket Assembly. Install the mounting bolts on the tower clamp assembly and the fuel line brackets on the right side. Tighten the mounting bolts.
In Steps 3, 6, and 8 do not install the new clamps over paint. Use Emery Paper or a fine sand paper to remove paint on the fuel lines in the area that the new clamps will be installed.
3. Assemble the new 6I4813 Clamp Kit (formed damper clamp) in place of the clamp assembly removed in Step 2. Tighten the screw to 2.25 N m (20 lb. in.). (See Section B-B in Illustration 2).
Illustration 2 Do not overtighten the screw. Use a 6V6069 Torque Screwdriver or similar tool to tighten the screw.
4. Slide a 8T1296 Washer under the new plate of the new formed damper clamp and loosely install a new 0S1590 Mounting Bolt [50.8 mm (2.0 in.)] with a new 9X6458 Washer. (See Section B-B in Illustration 2).For DIT Engines use a new 0L1351 Bolt [22.2 mm (.87 in.)].
5. Position the new 4P7144 Bracket in place of left rear fuel line bracket removed in Step 1. Slide two 688438 Spacers under the bracket and loosely install new 0L2070 Mounting Bolts [57.2 mm (2.25 in.)] with new 9X6458 Washers. (See Section D-D in Illustration 2).For DIT Engines use new 0S1594 Bolts [25.4 mm (1.0 in.)].
6. Assemble the new clamps and screws as shown in Section D-D of Illustration 2. Do not tighten the screws.7. Position the new 4P7137 Bracket in place of the left front fuel line bracket removed in Step 1. Slide two 8T1296 Washers under the bracket and loosely install new 0S1590 Mounting Bolts [0.8 mm (2.0 in.)] with new 9X6458 Washers. (See Illustration 3).
Illustration 3For DIT Engines use new 0L1351 Bolts [22.2 mm (.87 in.)].
8. Assemble the new clamps and screws as shown in Illustration 3.9. Tighten all the screws on both new fuel line brackets to 2.25 N m (20 lb. in.). Normally for Steps 4, 5, and 7, the washers