KIT-REAR SEAL 1U3506 - Caterpillar

Removal Procedure
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Note: M.C.S. regulated engines are equipped with thermowells which allow specific temperature sensors to be removed while the engine remains in operation. A heat conductive compound is used to ensure that an accurate temperature reading is achieved by the temperature sensor when installed in a thermowell.
Illustration 1 g03663284
Cut cable straps (1) and cable strap (3).
Disconnect harness assembly (2) from harness assembly (4).
Remove temperature sensor (5) from thermowell (6).
Use a clean towel to remove the heat transfer compound from temperature sensor (5) and thermowell (6).
If necessary, remove thermowell (6) from the cylinder head. Refer to Disassembly and Assembly, "Thermowell - Remove and Install" for the correct procedure.
Illustration 2 g03663285
Remove O-ring seal (5) from temperature sensor (6). Installation Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 5P-8937 Heat Sink Compound 1
Ensure that the temperature sensor and the thermowell are free from wear or damage.
Illustration 3 g03663285
Illustration 4 g03663284
If necessary, install thermowell (6) to the cylinder head. Refer to Disassembly and Assembly, "Thermowell - Remove and Install" for the correct procedure.
Install a new O-ring seal (7) to temperature sensor (5).
Apply a quantity of 1.7 mL (0.06 oz) of Tooling (A) to the inside of thermowell (6).
Install temperature sensor (5) to thermowell (6). Tighten the temperature sensor to a torque of 35 N m (26 lb ft).
Connect harness assembly (2) to harness assembly (4).
Install new cable straps (1) and a new cable strap (3). Ensure that the cable straps meet Original Equipment Manufacture (OEM) specifications.