30802 Mercury GEAR

Start By:
Remove the counterweight.Reference: Refer to Disassembly and Assembly, "Counterweight - Remove and Install".
Table 1
Required Tools    
Tool     Part Number     Part Description     Qty    
(A)     6V-3145     Load Leveling Beam     1    
(B)     8S-9906     Ratchet Puller     1    
Accidental machine starting can cause injury or death to personnel working on the machine.To avoid accidental machine starting, turn the battery disconnect switch to the OFF position and remove the key. If the machine is not equipped with a battery disconnect switch, disconnect the battery cables from the battery and tape the battery clamps.Place a do not operate tag at the battery disconnect switch location to inform personnel that the machine is being worked on.
At operating temperature, the hydraulic oil is hot and under pressure. Hot oils can cause burns.To prevent possible personal injury, release the pressure in the implement hydraulic circuit (boom, stick, bucket, and swing), travel circuits, and the hydraulic oil tank at the filler cap before any hydraulic lines or components are disconnected or removed.Remove the filler cap only when the engine is stopped and the filler cap is cool enough to touch.
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.
Note: Put identification marks on all lines, on all hoses, on all wires, and on all tubes for installation purposes. Plug all lines, hoses and tubes. This helps to prevent fluid loss and this helps to keep contaminants from entering the system.Note: A hydraulic oil sample should be obtained before any maintenance is performed in order to establish the system contaminant level. Refer to Fluid Analysis Laboratory Guide, SEBF3116, "Obtaining an Oil Sample for S O S Analysis". Refer to Operation and Maintenance Manual, "Sampling Interval and Location for Sampling" for the correct location.
Release the pressure in the hydraulic system. Refer to Disassembly and Assembly, "Hydraulic System Pressure - Release" in this manual.
Drain the oil from the hydraulic tank into a suitable container for storage or disposal. The total capacity of the hydraulic oil tank is 140 L (37 US gal).
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 filler cap is cool enough to touch with the bare hand.Remove the filler cap slowly to relieve pressure.Cooling system conditioner contains alkali. Avoid contact with skin and eyes to prevent personal injury.
Drain the coolant from the cooling system into a suitable container for storage or disposal. The capacity of the cooling system is 17 L (4.5 US gal).
Illustration 1 g00657201
Remove bolts (1) and the washers. Remove cover (2) .
Illustration 2 g00728218
Remove bolts (4) and the washers. Remove handhold (3) .
Illustration 3 g00728102
Remove bolts (6) and the washers. Remove mirror (5) .
Illustration 4 g00728252