IDLER GP-FRONT 3864139 - Caterpillar

Start By:
Connect the steering frame lock. Refer to Disassembly and Assembly, "Steering Frame Lock - Separate and Connect".
Release the pressure in the hydraulic system. Refer to Disassembly and Assembly, "System Pressure - Release".
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.
Personal injury can result from hydraulic oil pressure and hot oil.Hydraulic oil pressure can remain in the hydraulic system after the engine has been stopped. Serious injury can be caused if this pressure is not released before any service is done on the hydraulic system.Make sure all of the attachments have been lowered, oil is cool before removing any components or lines. Remove the oil filler cap only when the engine is stopped, and the filler cap is cool enough to touch with your bare hand.
Note: Put identification marks on all lines, on all hoses, on all wires, and on all tubes for installation purposes. Plug all lines, all hoses and all tubes. This helps to prevent fluid loss and this helps to keep contaminants from entering the system.
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Remove bolts (1) and grill assembly (2) .
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Disconnect hose assemblies (3), (4), and (5) .
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Remove fan guards (6), (7), (8), and (9) .
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Install Tooling (A), as shown. Attach a hoist and suitable lifting slings to Tooling (A) .
Remove bolts (10) .
Remove the fan blade and fan drive motor (11). The combined weight of the fan blade and of the fan drive motor is 57 kg (125 lb).
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Place the fan blade and the fan drive motor on cribbing, as shown.
Bend the tabs on lock washer (13) away from nut (12) .
Remove nut (12) and lock washer (13) .
Remove two bolts (14) that are 180 degrees from each other.
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Use Tooling (B) to remove fan (15) and fan adapter (16) .
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Remove bolts (14) .
Remove fan blade (15) from fan adapter (16) .
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Typical Example
Position the fan drive motor and the fan support on wood blocks, as shown.
Remove bolts (18) and fan drive motor (17) .