Yetter 2910-130-HD Heavy Duty Coulter - Manual (Page 6)

6
2910-130-HD
INSTALLATION
1. Assembly 3/8 x 2-1/2” roll pin into hole closest to end of 1-1/2” diameter shank, leaving
approximately equal amount protruding out each side. Note: offset shanks require
that you perform step 2 first then step 1.
2. Insert lock collar into pivot casting and slide shank up through casting and lock collar.
Slide shank up till roll pin contacts casting surface. Install and tighten 5/8 x 1”
setscrew in lock collar to 110 ft. lb. torque maximum.
3. Mount blade to hub using four 1/2 x 1-1/2” carriage bolts, lock washers and nuts.
4. Assemble clamp components loosely to the tool bar as shown in parts view of
appropriate clamp. Tighten four 1/2” nuts to secure the clamps.
5. Slide shank up through clamps and tighten 5/8 x 1” setscrews.
6. Install 5/16 x 2-1/2” cotter pins in all vertical 1-1/2” diameter shanks. This cotter pin
prevents loss of coulter should the clamp setscrews work loose. Cotter pin can be
installed between clamp castings or on top, above top casting depending on the
shank.
7. Set lock collar to allow swivel in one or both directions as required. Tighten set screw
to 110 ft. lb. torque maximum.
8. Set spring tension by adjusting 3/4” lock nut until 1/8” of threads are exposed above
the nut. Tighten 3/4” locknut if greater spring pre-load is required.