PUMP & MOTOR GP-SEC STEERING 3913129 - Caterpillar

Inspect the Zinc Rods
The zinc rods are red for easy identification. Table 1 shows the locations of the zinc rods and the quantities of the zinc rod:
Table 1
Locations of the Zinc Rods    
Location     Quantity    
Inlet Adapter of the Heat Exchanger     1    
Outlet Elbow of the Heat Exchanger     1    
Outlet Elbow of the Auxiliary Water Pump     1    
Remove the zinc rod.
Illustration 1 g00104048
Tap the zinc rod lightly with a hammer. If the zinc rod has deteriorated, or if the zinc rod flakes, install a new zinc rod.Replace the Zinc Rods
Illustration 2 g00104049
Unscrew the old zinc rod or drill the old zinc rod from the plug. Clean the plug.
Apply 9S-3263 Compound to the shoulder of a new zinc rod. Apply the compound only to the shoulder of the zinc rod. Install the zinc rod into the plug.
Coat the external threads of the plug with 5P-3413 Pipe Sealant. Install the zinc rod. Refer to Operation and Maintenance Manual for more information on torque specifications.