Kongskilde MS 3975, Instruction Manual

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28 MS MT KK EN 180103
Conventional Ploughs MS/MT
6. CARE, MAINTENANCE AND REPLACEMENT OF WEARING PARTS
TIGHTENING THE BOLTS
Bolts of quality 8.8, 10.9 and 12.9 are used on the ploughs. When replacing these bolts,
ensure that the same quality bolts and nuts are used. It is easier to tighten bolts and nuts to
the correct tightening torque, if they are lubricated with oil.
The following tightening torque should be used for the different bolts:
Tightening torque’s
Quality Size Torque
Dry bolts Bolts and nuts
and nuts lubricated with oil
8,8 M12 81 Nm 70 Nm
8,8 M16 197 Nm 170 Nm
8,8 M18 275 Nm 236 Nm
8,8 M20 385 Nm 330 Nm
8,8 M24 665 Nm 572 Nm
8,8 M30 1310 Nm 1127 Nm
10,9 M12 114 Nm 98 Nm
10,9 M16 277 Nm 238 Nm
10,9 M20 541 Nm 465 Nm
10,9 M24 935 Nm 804 Nm
10,9 M30 1840 Nm 1582 Nm
12,9 M16* 333 Nm 286 Nm
12,9 M20 649 Nm 558 Nm
12,9 M24 1120 Nm 963 Nm
GREASING OF THE BEAM HINGE POINTS
Grease the beam hinge points weekly, in stony conditions more frequently.
Procedure: Position the plough with the bodies approx. 15 cm above the ground. For
depressurising the accumulators, see section 4. STONE TRIP SYSTEM, CHECKING THE
ACCUMULATOR.
The hinge points will now expose as the beams drop down. Grease all the upper hinge points
(MoS2 grease is recommended) Also grease all other lubricating points in the stone trip
linkage while depressurized. Lower the plough and drive slightly forward so the lower hinge
point can be greased. Now pressurise the accumulators, make sure that the beams return to
their correct positions. Charge the accumulators up to the correct operating pressure!
NOTE! Make sure that all beams return to their correct positions.