SOFTWARE GP-IMPLEMENT 3855563 - Caterpillar

Personal injury can result from hot coolant, steam and alkali.At operating temperature, engine coolant is hot and under pressure. The radiator and all lines to heaters or the engine contain hot coolant or steam. Any contact can cause severe burns.Remove cooling system pressure cap slowly to relieve pressure only when engine is stopped and cooling system pressure cap is cool enough to touch with your bare hand.Do not attempt to tighten hose connections when the coolant is hot, the hose can come off causing burns.Cooling System Coolant Additive contains alkali. Avoid contact with skin and eyes.
Illustration 1 g00302172
(1) Filler cap for the aftercooler cooling system
(2) Filler cap for the jacket water cooling system
(3) Cooling system relief valves If the system overheats or if coolant is leaking, clean the relief valves or replace the relief valves.
Slowly remove filler caps (1) and (2). This will relieve the pressure.
Remove the bolts from the relief valve and remove the valve assembly.
Illustration 2 g00302286
(4) Valve
(5) Valve seals
(6) Gasket
(7) Valve cover
(8) Mounting bolts
Inspect valve (4),valve seals (5) and gasket (6). If necessary, replace the valves, the seals or the gaskets.
Inspect valve cover (7) and mounting bolts (8).
Assemble the relief valve. Install the relief valve.
Install the filler caps.