Product Manual

Page 13 of 28
skids located on the sides of the tiller. The adjustment bolts for both the right and left sides
should be positioned in the same adjustment hole. This allows the tiller to till the same depth on
each side.
6. Raise the tiller and remove the blocking.
Slip Clutch Adjustment (when supplied)
The Slip Clutch is designed to slip so that the gearbox and driveline are protected if the implement
strikes an obstruction.
A new slip clutch or one that has been in storage over the winter may seize. Before operating the
implement, make sure it will slip by performing the following:
1. Turn off tractor engine and remove key.
2. Remove driveline from tractor PTO.
3. Loosen the cap screws to remove all tension from the spring plate.
4. Hold clutch hub solid and turn shaft to make sure clutch slips.
5. If clutch does not slip freely, dissemble and clean the thrust plate faces, flange yoke, and clutch
hub.
6. Reassemble clutch.
7. Finger tighten spring until it is against the thrust plate of the clutch and then tighten each of the
nuts by 1½ - 2 full rotations. Try the implement and watch for clutch to slip. Adjust nuts another
½ turn as needed until clutch stops slipping.
8. If clutch continues to slip when the spring is compressed, check friction disc for excessive wear.
Discs are 1/8” thick when new. Replace discs after 1/16” wear. Minimum disc thickness is 1/16”.
During Adjustment
During the adjustment, in case the gear side clearance conflicts with the meshing imprint (meshing
imprint is suitable while gear side clearance is not suitable), the meshing imprint should be followed
without guaranteeing the gear side clearance (gear side clearance should not be less than 0.2mm).
When disassembling and maintaining the unit, the quantity of shims should not be increased or
decreased and its thickness should not be changed.
Bearing Clearance: Adjusting the Blade Arbor Spline Shaft
If the symmetry plane of the blade arbor gear is overlapped with the symmetry plane of the gear box
body after the bearing clearance has been adjusted, it will still need to be adjusted. This can be done
by adding or removing the shims between the right or left bearing cover and box body. To prevent the
adjusted bearing clearance from being destroyed, the total quantity of shims should not be changed.
The number of shims being increased on the left side should be decreased on the right side, and vice
versa.