GE AMX 4+, Техническое руководство

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4-13
4. Remove retaining ring from endof pulley shaft.
5. Remove pulley shaft bearing, key, pulley andcables from mounting bracket.
6. Remove bearing from mounting bracket.
7. Place bearing on pulley shaft andinsert key.
8. Place pulley in position in the mounting bracket.
9. Insert pulley shaft, bearing andkey into mounting bracket andthrough pulley.
10. Place bearing in mounting bracket on endof pulley shaft.
11. Place retaining ring on endof pulley shaft.
12. Replace pulley set screws andsecure firmly.
Install Upper Pulley, Bearings andBrake
1. Place pulley andbrake assembly near upper endof vertical column. See IllustraĆ
tion 4-6.
2. Remove the nuts from the studends of main andsafety cables.
3. Insert each cable into pulley andbrake assembly along the side of the pulley then
lift it into its assignedpulley groove.
D The ball ends of these cables are attached to the counterweight.
4. Insert main and safety cables into the column through slot provided.
5. Check that the brake cable is exiting pulley andbrake assembly through hole in
casting.
6. Replace pulley andbrake assembly in top of column while sliding the brake cable
through slot in top of column.
D This must be done together or the brake cable may be damaged.
7. Replace the Heyco bushing in column where brake cable passes through column
andenters pulley andbrake assembly.
D Bushing extends into pulley and brake casting.
8. Apply Loctite andreplace capscrews securing pulley andbrake assembly to top
of column. Torque to 50-70 pound-inches (5.6 to 7.8 N-m).