78639 Mercury STUD

Personal injury or death can result from improper lifting or blocking.When a hoist or jack is used to lift any part or component, stand clear of the area. Be sure the hoist or jack has the correct capacity to lift a component. Install blocks or stands before performance of any work under a heavy component.Approximate weights of the components are shown. Clean all surfaces where parts are to be installed.
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.
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, "Caterpillar Tools and Shop Products Guide" for tools and supplies suitable to collect and contain fluids on Caterpillar products.Dispose of all fluids according to local regulations and mandates.
Put identification marks on all lines, all hoses, all tubes and all wires for installation purposes. Plug all lines, all hoses and all tubes. This will prevent fluid loss and contamination of the systems.
Illustration 1 g00805195
Illustration 2 g00805196
Remove two hose clamps (1). Slide hose (2) onto tube (3) and off tube (4). Remove two hose clamps (5). Slide hose (6) onto tube (7) and off tube (4). Remove the four bolts that secure four clamps (8) to machine frame (9) and remove tube (4) from the machine.
Illustration 3 g00805557
Illustration 4 g00805562
Remove four bolts (10) and the washers in order to disconnect tube (11) from transmission (12). Remove four bolts (13), the washers and two half clamps (14) before removing tube (11) from oil cooler (15) and the machine.
Disconnect harness (16) for the transmission temperature sender. Remove four bolts (17) and the washers in order to disconnect tube (18) from transmission (12). Remove four bolts (19), the washers and two half clamps (20) before removing tube (18) from oil cooler (15) and the machine.
Illustration 5 g00805886
Loosen four bolts (21) that secure bracket (22) to flywheel housing (23). Do not remove the bolts.
Illustration 6 g00805887
Loosen two bolts (24) that secure brake oil cooler (25) to bracket (22). Do not remove the bolts.
Illustration 7 g00805889
Attach a suitable nylon lifting sling around oil cooler (15). Feed the sling between the machine frame and the engine block in order to attach the sling to a suitable hoist. Take up the tension but do not lift oil cooler (15). Remove two bolts (26) and the washers that secure bracket (22) to oil cooler (15). Slide bracket (22) away from oil cooler (15) .
Illustration 8 g00806156
Remove six bolts (27) that secure oil cooler (15) to bonnet (28). Use the hoist and carefully lower the oil cooler to the floor. The weight of the oil cooler is 26 kg (58 lb).