WASHER-LOCK 5173225 - Caterpillar

Image1.5.1
9. Remove five nuts (6) and four spacers (7). Remove combustion head (5). Remove gasket (4) and flanged tube (3). Remove second gasket (2). Remove non-flanged tube (1) and remove studs (8). Refer to Image 1.6.1.
Image1.6.1
10. Remove the bolts and washers that hold the heat shield to the combustion body. Save the hardware for reuse.
Installation Procedure
1. Use appropriate tooling to remove 6 mm of material from the fuel manifold. Cleanliness is extremely important in this step. Cover all open ports on the fuel manifold. Refer to Image 1.8.1 and 1.8.2.
Image1.8.1
Image1.8.2
2. Install the new 328-2728 Heat Shield to the new 325-3698 Combustion Body with the hardware removed in step 10 of the removal procedure.
3. Apply anti-seize to the threads of studs (8) removed in step 9 of the removal procedure. Install studs (8) with the end that is marked "X" in the Up position. Tighten studs (8) to a torque of 17 +/- 2 N.m (12.5 +/- 1.5 lb ft). Refer to Image1.9.1.
Image1.9.1
4. Install original non-flanged tube assembly (1) removed in step 9 of the removal procedure into the new 325-3698 combustion body (13). Install a new 296-7780 Gasket (2). Install original flanged tube assembly (3) removed in step 9 of the removal procedure. Install new 296-7780 Gasket (4) and install combustion head (5) removed in step 9 of the removal procedure. Refer to Image 1.6.1.
5. Apply anti-seize to the threads of the five studs (8) and five nuts (6) removed in step 9 of the removal procedure. Install four original spacers (7) and one new 8E-9571 spacer. Refer to Image 1.6.1 and 1.10.1.
Image1.10.1
6. Tighten nuts (6) in a crisscross pattern to a torque of 23 +/- 3 N.m (17 +/- 2 lb ft). Tighten nuts (6) again in a crisscross pattern to a torque of 28 +/- 7 N.m (21 +/- 5 lb ft). Tighten nuts (6) a third time in a crisscross pattern to a torque of 28 +/- 7 N.m (21 +/- 5 lb ft). Refer to Image 1.6.1 and Image 1.10.1.
7. Position new 325-3698 combustion body group (13) and install new 300-8688 clamp (12). Tighten clamp (12) to a torque of 11 +/- 1 N.m (97 +/- 9 lb in). Refer to Image 1.11.1.
Image1.11.1
8. Install the new 328-4158 support bracket (14) with the original hardware removed in step 7 of the removal procedure. Refer to Image 1.11.1.
Step 9 - for Group 1
9. Attach the 345-7726 extension pipe assembly (9) to the 325-3698 combustion body (13) with a new 307-9892 clamp (11). Tighten clamp (11) to 12 +/- 1 N.m (106+/- 8 lb in). Install the OEM's original heat wrap removed in step 6 of the rework procedure onto the new extension pipe assembly. Install flame detection temperature sensor (not pictured) in to the new 345-7726 extension pipe assembly. Tighten flame detection temperature sensor to a torque of 45 +/- 5 N.m (33 +/- 3 lb ft). Refer to Image 1.11.1.
Step 9 - for Group 2
9. Install new 336-2068 and 336-2069 Heat Shields (8) on to