1.
Check the lower link hitch for damage,
deformation, cracks and wear.
2.
Have the damaged lower link hitch replaced by a
specialist workshop.
3.
Check the bolt tightening torques.
10.1.17 Checking the ball coupling
INTERVAL
Every 50 operating hours
Ball coupling
Wear dimension
Fixing bolts
Quantity
Bolt tightening
torque
K80 (LI009)
82 mm
M16 10.9
8
300 Nm
K80 (LI040)
82 mm
M20 10.9
8
560 Nm
K80 (LI015)
82 mm
M20 10.9
12
560 Nm
Drawbar eye
D35 (LI038)
42 mm
M16 12.9
6
340 Nm
D40 (LI017)
41.5 mm
M16 10.9
6
300 Nm
D40 (LI006)
42.5 mm
M20 8.8
8
395 Nm
D46 (LI034)
48 mm
M20 10.9
12
550 Nm
D50 (LI037)
60 mm
M16 12.9
4
340 Nm
D50 (LI010)
51.5 mm
M16 10.9
8
300 Nm
D50 (LI059)
51.5 mm
M20 10.9
4
560 Nm
D50 (LI011)
51.5 mm
M20 8.8
8
410 Nm
D50 (LI060)
52.5 mm
M20 10.9
8
560 Nm
D51 (LI039)
53 mm
M20 10.9
12
600 Nm
D58 (LI031)
60 mm
M20 10.9
12
550 Nm
D62 (LI007)
63.5 mm
M20 10.9
8
590 Nm
D79 (LI021)
81 mm
M20 10.9
12
550 Nm
1.
Check the drawbar eye for damage, deformation,
cracks and wear.
2.
Have damaged hitch balls replaced by a
specialist workshop.
3.
Check the bolt tightening torques.
CMS-T-00006968-A.1
10 | Repairing the machine
Maintaining the machine
MG6828-EN-II | N.1 | 13.08.2021
90
