3-Point Linkage Support Chain; Maintenance And Service; Checking The Knives And Knife Holders - SaMASZ KDT180 Operator's Manual

Rear disc mower
Operator's manual
KDT180;KDT220;KDT260;KDT300;
KDT340

5.5. 3-point linkage support chain.

B
A
~40cm
b
a
Fig. 15. 3-point linkage support chain.
Support chain is used to ensure 3-point linkage frame of the mower is always at the same
height, to set the mowing unit parallel to the ground and to relieve the hydraulic lift of the
tractor.
When connecting mower to the tractor, the hanger plate A of support chain should be
disconnected from chain and put on the pin B of upper link (fig.15a). Then the mower has to be
lifted with hydraulic lift about 40 cm high (fig.15b). The support chain is then connected to the
hanger plate A, so that is tensioned when the mower is in its working position. If the 3-point
linkage frame is more than 40 cm above the ground, adjust the chain.

5.5. Maintenance and service

5.5.1. Checking the knives and knife holders

All knives should have the same lengths and weights. Always check mower before starting
work for damaged, missing and/or worn knives. Replace them, if necessary, only in sets. Make
sure all knives in a set are of the same length and weight.
If the knife holder pin is worn too much and/or the knife holder is worn or deformed, please
replace it immediately.
Fig. 16. Permissible wear of knife holder pin.
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