MacDon 872 Combine Adapter - Manual (Page 70)

70
FLOAT SPRING REMOVAL or INSTALLATION
9. Lower adapter to clear header and slowly back adapter out
of header.
10. Raise adapter to comfortable working height and support
with jack stands.
11. Remove bolt (A) at front of leaf spring assembly.
12. Swing up tip of frame leg to clear springs and place a
stand to support leg.
13. Completely remove bolt (B), which was loosened in Step 2.
NOTE: Step 14 refers to removing an existing leaf spring for
21’ 972 Headers, For adding a 9
th
leaf spring, go to Step 15.
14. Remove top three springs from assembly until third leaf
spring can be completely removed. Discard third spring
from top and reinstall top two springs.
NOTE: Steps 15 & 16 refer to adding a 9
th
leaf spring for 30’ & 36’ headers. For 21’
Headers, go to Step 17.
15. Remove all leaf springs from frame
pocket. Pivot the frame leg forward to
expose frame pocket. Cut away ½”
(12 mm) of material at (H).
IMPORTANT: Some 2002 Production
combine adapters have had the ½” of
material removed from the frame
pocket at the factory. Before cutting
away any material from the frame
pocket, be sure the entire slot (M) is
visible. If some of the slot has been
cut away, do not remove any further
material.
16. Re-assemble leaf springs, including the
extra spring (J) positioned between
existing springs 2 & 3 as shown at right.
17. Carefully reinstall float adjusting bolt (B)
into special nut (K) with tip of leaf springs
raised and looking in inspection slot at rear
of frame. Be sure clip (L) is engaged on
two top springs. Reattach front of leaf
spring assembly with bolt (A).
18. Repeat steps 11 to 17 at other side of
adapter.
19. Re-install adapter into header and adjust
float. See “Header Flotation” in Operation
section.
A
REMOVING 3 rd SPRING – 15’ 972 HEADER
B K
L
B
K
J
ADDING 9
th
SPRING – 30’ & 36’ HEADERS
L
REMOVE ½” (12 mm) FROM FRAME POCKET
IF FULL SLOT (M) IS VISIBLE
H M
PIVOT FRAME LEG UP TO EXPOSE
POCKET