Service Manual
DS 350 GM
Rev A 05/01/01 // SB
190113_A
14
3.4
BROKEN LENGTH CABLE
PROBLEM: Damaged or broken length cable.
Replace length cable using the following procedure:
Refer to Section 4 for the following drawings:
Drawing 3 - Electrical Wiring Central Unit to Cable Reel
Drawing 6 - Cable Reel - Parts List
1. Cut old cable at cable drum.
2. Disconnect damaged length cable from junction box at the boom nose. Refer to Drawing 3.
3. Open cable reel cover and disconnect wiring from terminal block. Pull 7 conductor cable out of strain
relief. Note: Mark wires to make re-connection simpler.
4. Remove cable reel from mounting brackets.
5. Remove damaged length cable, which is mounted to the slip rings in the cable reel, from slip ring
terminal. Refer to Drawing 3.
6. On the back side of the cable reel, open the strain relief attached to the axle in the center of the
drum. Pull existing length cable out of the cable reel.
7. Pull new length cable through the hole, pipe and strain relief and push it through the axle of the
reeling drum. Tighten new strain relief to ensure sealing.
8. Reconnect the length cable to the slip ring. Refer to Drawing 3.
9. Remount cable reel to the boom.
10. Turn reeling drum clockwise to spool the new cable neatly onto the drum.
11. Set pre-load on cable reel by turning the drum counter-clockwise 5 to 8 turns.
12. Run the new length cable through the cable guides and wrap the length cable around the boom tip
anchor pin (4 or 5 wraps) and secure with tie wraps. Leave enough length cable to connect into the
boom tip junction box.
13. Connect the length cable into the boom tip junction box. Refer to Drawing 3.
14. Reset length potentiometer in length angle transducer (screw is located in center of white gear); with
boom fully retracted, turn potentiometer carefully counter-clockwise until it stops. Recheck length and
angle display. Refer to Procedure 5 in Section 5.5.
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