NOTE: Transmission rear cover assembly must be removed from the transmission case when making the following adjustments. However, it should not be necessary to change these adjustments unless parts in the rear cover assembly are to be replaced.

LOAD-AND-DEPTH CONTROL ANCHOR YOKE ADJUSTMENT

If rear cover has been disassembled, refer to Figure 47A, showing relative position of parts for assembling.

Install special load spring adjusting nut with counter-bore in nut toward spring. Grasp spring and tighten adjusting nut until end-play or free movement of spring is just eliminated (Figure 47B).

Then tighten the adjusting nut an additional 1/4 turn (Figure 47C). Secure adjusting nut in this position with lock nut.

Check the above adjustment in the following manner: Clamp a steel plate measuring about 6 inches wide and 18 inches long to the transmission rear cover as shown in Figure 47D. The measurement from the edge of the mounting surface on the cover assembly to the center of the hole in the control lever as shown in Figure 47D, should be 4-1/4 to 4-5/8 inches. If the dimension is less than 4-1/4, add a shim under the load control spring. If the dimension is more than 4-5/8 inches, remove the shim from under load control spring. Each time a shim is added or subtracted, follow the adjustment procedure very carefully. Always check adjustment after adding or removing a shim.

ADJUSTMENT OF STOP FOR LOAD-AND-DEPTH CONTROL LOCK-OUT SCREW

After the 4-1/4- to 4-5/8-inch dimension has been established, place a 3/4-inch steel spacer block across the flat on the lock-out screw head and back screw out until block just contacts the anchor yoke stop lug (Figure 47E). Block must be held flat on lockout screw head. Next, turn set screw into cover until it just contacts the lock-out screw. Lock set screw securely in this position with special lock nut (Figure 47E).

ADJUSTMENT OF STOP FOR LOAD-AND-DEPTH CONTROL LOCK-OUT SCREW

NOTE: The transmission rear cover assembly must be removed from the transmission case when making this adjustment. However, it should not be necessary to change the adjustment unless a new cover, lock-out screw, or set screw are to be installed.

Loosen lock nut and remove set-screw from front or inside of transmission rear cover and place cover on a flat surface. Install Load-and Depth Control lock-out screw in rear or outside of cover and adjust lock-out screw in cover until 2-15/16-inch dimension is obtained (Figure 48A).

Reinstall set-screw in front side of cover and turn in until it bottoms against lock-out screw. Then tighten lock nut securely (Figure 48B) making sure that 2-15/16-inch dimension does not change.

LOAD-AND-DEPTH CONTROL ANCHOR YOKE ADJUSTMENT

NOTE: The transmission rear cover and anchor yoke assemblies must be installed on the tractor in their relative positions before this adjustment can be made.

Turn the Load-and-Depth Control lock-out screw into the transmission rear cover assembly until it bottoms against stop in cover. Hold a 29/32-inch steel spacer block flat on the head of the lock-out screw and tighten load control spring adjusting nut until anchor yoke stop lug just touches the block (Figure 48C). Lock adjusting nut securely in this position with the lock nut.

CAUTION: The 29/32-inch adjustment must be re-set each time the anchor yoke is removed.