MacDon FD75 OM - Manual (Page 53)

OPERATION
Adjusting Endshields
Plastic endshields are subject to expansion or contraction from large temperature variations. The position of the
top pin and lower catch can be adjusted to compensate for dimensional changes.
To adjust the endshield, perform the following:
1. Check gap ‘X’ between the front end of shield and
header frame and compare to chart.
Temperature
°F (°C)
Gap ‘X’
in. (mm)
25 (-4) 1-1/8 (28)
45 (7) 1 (24)
65 (18) 13/16 (20)
85 (29) 5/8 (16)
105 (41) 1/2 (12)
125 (52) 5/16 (8)
145 (63) 3/16 (4)
165 (89) 0
Figure 4.16: Endshield
If adjustments are required, proceed as follows:
2. Open endshield. Refer to Opening Endshields, page
35 .
3. From inside endsheet, loosen nut (A) on pin (B) with a
3/4 in. socket.
4. Close endshield and adjust position to achieve
the gap ‘X’ between the front end of shield and
header frame.
5. Open endshield and tighten nut (A).
6. To achieve a snug fit between top of shield and header
frame and to ensure that endshield is fully engaged on
pin (B), loosen bolts on catch (C) and adjust catch as
required to reposition shield.
7. Tighten bolts on catch (C).
8. Close endshield. Refer to Closing Endshields, page
36 .
Figure 4.17: Adjustments
169894 39 Revision A