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MAINTENANCE
High-Strength Bolt Connections (continued)
Cable Drum for Excavators with Electric Prime Mover
Check condition anf fastening of parts (01 - 06) and (10, 30
and 40), illust. Z 20620
Legend for illust. Z 20620
(01)
Junction box
(02)
Brake motor
(03)
Drum body
(04)
Cable guide rocker arm
(05)
Sliding frame
(06)
Drive chain guard
(10)
Cable drum carrier frame
(11)
Mounting bolts frame (10) to undercarriage center
section
(14)
Mounting bolts junction box (01) to frame (10)
(19)
Mounting bolts drum (03) to frame (10)
(20)
Lock nut
(21)
Adjusting screw for drive chain tension
(30)
Limit switch, cable end
(40)
Actuator lever for limit switch (30)
Reference No.:
(11)
(14)
(19)
* SW Wrench size
For more information concerning cable drum maintenance refer to
the separate booklet CABLE DRUM in volume 2 binder.
Bolt size
Grade
mm
M20
10.9
M20
10.9
M16
10.9
4.12 EVERY 1000 OPERATING HOURS OR EVERY 6 MONTH
SW *
Tightening torque
mm
Nm
30
510
30
510
24
265
Qty.
40
4
4
459
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