GE AMX 4+, Technical Manual

Page: 63 / 132

4-15
Install Upper Pulley, Bearings and Brake
(Alternate)
This procedure can be used in conjunction with Section 4Ć4Ć6.
1. Insert screws holding upper brake to the pulley and brake assembly casting and
secure in place.
2. Check that the brake cable is exiting pulley and brake assembly through hole in
casting.
3. Replace pulley and brake 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.
4. Replace the Heyco bushing in column where brake cable passes through column
and enters pulley and brake assembly. Bushing extends into pulley and brake
casting.
5. Apply Loctite and replace capscrews securing pulley and brake assembly to top
of column. Torque to 50-70 pound-inches (5.6 to 7.8 N-m).
6. Connect brake. Refer to Section 4Ć4Ć5.
7. Move carriage to top of column and insert main and safety cables in carriage caĆ
ble mounting strut. See Illustration 4-8.
ILLUSTRATION 4-8
8. Tighten the main and safety cable stud end nuts and lock in place with the holding
nuts.
9. Set cable tension in accordance with Section 4Ć3Ć4. Tighten cable jam nuts.
10. Replace cover plate on the carriage assembly and secure with four binding head
screws. See Illustration 4-3.
11. Replace horizontal arm with yoke. Refer to Section 3-6.