TUBE AS 3827150 - Caterpillar

Table 1
Locations of the Zinc Rod
Location Quantity
Sea water pump outlet elbow 1
Plate type heat exchanger inlet 1
Plate type heat exchanger outlet 1 Inspect the Zinc Rods
Remove the zinc rod.
Inspect the zinc rod.Ensure that the zinc rod will remain effective until the next scheduled inspection.
If the zinc rod has deteriorated excessively, install a new zinc rod.
Illustration 1 g00481100
Tap the zinc rod lightly with a hammer. If the zinc rod breaks, install a new zinc rod.
If the zinc rod will be reused, scrape the layer of oxidation from the zinc rod before installation. The layer of oxidation reduces the effectiveness of the zinc rod.Replace the Zinc Rods
Use pliers to unscrew the old zinc rod from the plug.If not enough material remains or the zinc rod has broken off, drill the zinc from the plug.
Clean the plug.
Illustration 2 g00748510
(1) Shoulder
(2) Threads
(3) External threads of the plugNote: Do not apply adhesive or sealant to the threads of the zinc rod (2).
Apply 9S-3263 Thread Lock Compound to the shoulder (1) of a new zinc rod. Apply the compound only to the shoulder of the zinc rod. Install the zinc rod onto the plug.
Coat the external threads of the plug (3) with 5P-3413 Pipe Sealant. Install the zinc rod. See Specifications, SENR3130, "Torque Specifications" for the torque for the plug.