Great Plains Frame-Mounted Coulters - Manual (Page 2)

Great Plains Mfg., Inc.
2 Update Kit
249-137M 02/28/2007
Dismount Coulter
Remove Coulter Blade
Refer to Figure 2
To reduce sharp object hazard, and to ease removal of
the swing arm, first remove the coulter blade.
3. Remove and save four each:
NUT HEX 1/2-13 PLT
WASHER LOCK SPRING 1/2 PLT
RHSNB 1/2-13X1 1/4 GR5
4. Remove and save the coulter blade .
Remove Spring
Refer to Figure 3
Because parts to be removed later are under tension
from the spring, remove it at this time.
5. Remove and save the outer jam nut:
NUT HEX JAM 3/4-10 PLT
6. Carefully remove and save the inner jam nut,
washer and coil spring:
NUT HEX JAM 3/4-10 PLT
COULTER SPRING WASHER
SPRING 2.25 O.D. X .5 COIL
7. Remove the old spring rod sleeve and bushing.
These are not re-used:
SPRING ROD SLEEVE 1 1/8 OD
BUSHING COULTER CASTING
Figure 2
Remove Coulter Blade
26098
65
60
61
1
61
65
60
1
Figure 3
Remove Spring
26098
69
62
55
54
57
62
62
62
54
55
57
69