New Holland Workmaster 50 Operator's Manual page 94

Top Link
To adjust the top link length:
1. Hold the link end (1) and rotate the sleeve (2) to
lengthen or shorten the top link.
2. Tighten the lock (3) against the top link sleeve to pre-
vent unwanted rotation of sleeve when in work.
Hydraulic draft sensing spring adjustment
When operating in Draft Control, the top link and hydraulic
draft sensing spring transmit draft signals to the control
valve within the hydraulic system. The top link attachment
to the draft sensing spring affects draft signals.
The draft sensing spring bracket contains three holes for
attaching the top link. The top hole (1) is recommended
for light draft loads and light equipment. With the top link in
the top hole, the hydraulic system is more sensitive to draft
signals. Use the middle hole (2) for heavier draft loads
and equipment, and the bottom hole (3) for the heaviest
loads. With the top link in the bottom hole, the hydraulic
system is less sensitive to draft signals.
NOTICE: When mounting a category I, three-point hitch
mounted implement, it may be necessary to remove
the drawbar and drawbar support to obtain clearance
between tractor and implement.
6 - WORKING OPERATIONS
6-10
3
86090128N
4
86090127N