864954 Mercruiser HOSE, Thermostat Housing to Upper Manifold

Start By:a. remove fan assembly
At operating temperature, the engine coolant is hot and under pressure. Steam can cause personal injury. Drain the coolant only after the engine has been stopped and the fill cap is cool enough to touch with your bare hand. Remove the fill cap from the radiator slowly to relieve pressure. Cooling system conditioner contains alkali. Avoid contact with the skin and eyes to prevent personal injury.
1. Drain the coolant from the radiator. The capacity of the cooling system is 30 liters (7.8 U.S. Gal).
At operating temperature, the hydraulic oil tank is hot and under pressure. Hot oil can cause severe burns. Remove the drain plug only when the engine is stopped, and the drain plug is cool enough to touch with your bare hand.
2. Drain the hydraulic oil tank. The capacity of the hydraulic oil tank is 125 liters (32.5 U.S. Gal).3. Remove the hood assembly.
View from underneath the radiator.4. Disconnect two lines (1). 5. Disconnect the upper and lower radiator hoses (2).6. Remove three bolts and washers (3) from each side of radiator and hydraulic oil cooler (4). 7. Disconnect one hydraulic oil line (5). 8. Install Tooling (A), and support the radiator and hydraulic oil cooler (4) with chains and a hoist as shown. Remove radiator and hydraulic oil cooler (4). The weight of the radiator and hydraulic oil cooler is 57 kg (125 lb). The following steps are for the installation of the radiator and hydraulic oil cooler.9. Position radiator and hydraulic oil cooler (4) in the frame.10. Install three bolts and washers (3) to each side, and secure radiator and hydraulic oil cooler (4). Remove Tooling (A) from the radiator.11. Connect one hydraulic oil line (5) and two additional lines (1).12. Connect upper and lower radiator hoses (2).13. Install the hood.14. Fill the radiator with coolant. See the topic "Lubricant Viscosities & Refill Capacities" in the Operation & Maintenance Manual for the correct procedures.15. Fill the hydraulic oil tank. See the topic "Lubricant Viscosities & Refill Capacities" in the Operation & Maintenance Manual for the correct procedures.End By:a. install fan assembly Some excavators may be equipped with an optional hydraulic oil cooler fan. For information regarding the removal and installation, refer to Vehicle Systems module, form no. SENR4346.Separate & Connect Radiator & Hydraulic Oil Cooler
Start By:a. remove radiator and hydraulic oil cooler 1. Disconnect two lines (1) from reservoir tank group (2).2. Remove three bolts and washers (3), and remove reservoir tank group (2). 3. Remove six bolts and washers (4), three from each side, and remove shroud (5). By removing two bolts and washers (6) and two bolts and washers (8), the radiator and the oil cooler can be removed at the same time, and then separated. To complete the separation, remove the remaining two bolts and washers (6). 4. Remove four bolts and washers (6), and remove radiator (7).5. Remove two bolts and washers (8), and remove hydraulic oil cooler (9). 6. Remove thermostat valve group (10) from hydraulic oil cooler (9). The following steps are for the connecting of the radiator and the oil cooler.7. Install thermostat valve group (10) into hydraulic oil cooler (9).8. Position hydraulic oil cooler (9), and secure into place with two bolts and washers (8).9. Position the radiator (7), and secure by installing two bolts and washers (6) on the outside of radiator (7). Install two remaining bolts and washers (6), and secure radiator (7) to hydraulic oil cooler (9).10. Position shroud (5), and secure with six bolts and washers (4).11. Position reservoir tank group (2), and secure with three bolts and washers (3).12. Connect two lines (1).End By:a. install radiator and hydraulic oil cooler