Great Plains NP4000 Applicators - Manual (Page 6)

6 Great Plains Manufacturing, Inc. Front Page Appendix Spring Plunger Update
401-828M Front Page Appendix 2012-08-30
Replace Aft Cylinder Stops
Note: Only the Aft (rear) cylinder stops (lock channels)
are removed and replaced. The Forward (front)
cylinder stops remain as-is.
Start with the left side of the applicator.
Refer to Figure 8
27. At the aft wing fold cylinder, remove and save one:
805-105C PIN COTTER 1/4 X 2 1/2 PLT
804-028C WASHER FLAT 1 USS PLT
28. Check whether the clevis pin is loose enough to
remove. If it is tight, relieve cylinder pressure by
bleeding some oil at the JIC fitting
on the rod end
of the aft cylinder.
29. Remove and save the aft pin and second washer:
805-412C PIN CLEVIS 1 X 4.13 USBL
804-028C WASHER FLAT 1 USS PLT
30. Remove the cylinder stop (lock channel) .
It is not re-used.
31. Select one new:
407-916K SPRING PLUNGER ASSEM
Use the saved pins to install the new stop
weldment
where the aft lock channel was
removed.
32. Repeat step 27 through step 30 for the right wing.
Figure 8
Remove Aft Cylinder Stop
34111
5
13
U
D
F
B
L
R
Aft
Forw
ard
Aft
Forw
ard
14
15
11
58
13
14
13
15
5
15
13
11
58
58