Yetter 2940-010 Combo - Manual (Page 10)

10
OPERATION
1. Set/mount coulter blades to run perpendicular to the soil. Operation depth and blade
wear can be affected if the coulter is mounted crooked or if the toolbar is not level side to
side.
2. After a few hours of use, check all bolts for tightness and proper torque.
3. After a day of use (10-12 hours) check coulter hubs for loose bearings. There should be no
endplay in the hub bearings allowing the blade to wobble. If necessary, remove
hubcap and cotter pin and adjust the slotted nut to remove wobble, recommended torque
of 15 ft. lbs. and re-insert cotter pin. If the wobble or looseness cannot be corrected, the
bearings, cups and seals will need to be replaced.
DO NOT USE WORN OR DAMAGED
PARTS.
MAINTENANCE
LUBRICATION: USE #2 MULTI-PURPOSE LITHIUM GREASE
To ensure longevity and reliability of the Coulter Residue Manager Combo, the recommended
lubrication schedule should be followed using multi-purpose grease at hourly intervals as
indicated.
BEARING ADJUSTMENT:
1. Raise the toolbar until the blade is clear of the ground. Place a safety stand under the
toolbar. Remove the hubcap, cotter pin, slotted nut and washer from the hub assembly.
Remove the blade from the hub assembly.
2. Remove bearing cones and seals from hub.
3. Wash the old grease from the hub, bearing cups, spindle spacers, seals and bearing
cones. Inspect the condition of the bearing cups, cones and seals. Replace if necessary.
4. Apply #2 multi-purpose lithium grease on each bearing. Make sure the space around
each roller is filled. Lubricate the bearing cups.
5. Position the bearing in the cup and install the seal. Lubricate the seal lips and proceed
with reassembly of the removed parts including the blade. Blade bolt torque is 90 to 96 ft.
lbs.
6. Tighten the slotted nut to 15 ft. lbs. or until a definite drag is felt when the blade is
turned by hand. Tighten the nut one slot position to line up the cotter pin hole with a slot.
Secure the nut with a new cotter pin, replace hubcap.