HOSE AS 6N4377 - Caterpillar

Removal Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 207-1601 Rubber Lubricant 1
Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting, and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids.Refer to Special Publication, NENG2500, "Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Cat® products.Dispose of all fluids according to local regulations and mandates.
At operating temperature, the engine coolant is hot and under pressure.Steam can cause personal injury.Check the coolant level only after the engine has been stopped and the fill cap is cool enough to touch with your bare hand.Remove the fill cap slowly to relieve pressure.Cooling system conditioner contains alkali. Avoid contact with the skin and eyes to prevent personal injury.
Drain the coolant. Refer to Operation and Maintenance Manual, "Cooling System Coolant (ELC) - Change" for the correct draining and filling procedures.
Illustration 1 g03648876
Open door (1).
Illustration 2 g03704082
Remove bolts (2) and the washers. Move oil filter (3) and the bracket out of the way.
Illustration 3 g03704136
Remove elbow (5).
Remove tube assembly (4) from water temperature regulator housing (10).
Disconnect tee assembly (6) from water temperature regulator housing (10).
Disconnect clip (7) from water temperature regulator housing (10).
Disconnect harness assembly (9).
Remove bolts (8) and the washers. Remove water temperature regulator housing (10).
Illustration 4 g03704706
Disconnect hoses (13).
Disconnect oil cooler bonnet (14) from the water pump .
Loosen clamp (15).
Remove bolts (11) and the washers. Remove water pump cover (12).
Illustration 5 g03704748
Remove bracket (16).
Illustration 6 g03704755
Remove bolts (18). Remove cover (17).
Illustration 7 g03704836
Remove bolts (20) and the washers. Remove water pump (19). Installation Procedure
Install water pump (19) in the reverse order of removal.
Apply Tooling (A) to all O-ring seals and bores prior to installation.