Summers CoulterChisel CC2815 Operator's Manual page 31

SECTION 2 – SET-UP OF DISK-CHISEL & COULTER-CHISEL CENTER SECTION (32'-40')
1. Place front, center and rear sections on floor with bolt plates facing each other.
2. ATTACH sections with 48 – 3/4x2-1/4" bolts, lock washers and nuts as shown.
3. Block center frames off the floor.
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