OMAR178078: 8120, 8220, 8320, 8420, and 8520 Tractors , Block File: AG_RX15494_3106_19

causym CAUTION: Avoid personal injury. PTO shaft may be hot from operation. Allow shaft to cool before changing.

1. Remove snap ring (A), which retains the 45 mm (1-3/4 in.) 20 spline, 1000 rpm PTO stub shaft. Carefully clean surrounding areas.

NOTE: Rotate the ends of the snap ring to align with flat surface of the shaft.

2. Remove PTO stub shaft (B) from housing.

3. Clean stub shaft thoroughly, coat splines with John Deere HD Non-Clay grease.

4. Select the 540 (C) or 1000 (D) rpm shaft end of the PTO adapter.

5. Install splined overload collar (E) on shaft and insert adapter into PTO housing.

NOTE: Torque-limiting collar is designed to fail in overload conditions to protect equipment.

540 rpm shaft - Rotate collar back and forth while installing, to insure shaft is correctly seated in housing.

1000 rpm shaft - Rotate collar back and forth while installing until engagement is felt.

Shaft is correctly engaged when shaft turns with high effort.

6. Retain adapter with four cap screws.

PTO Adapter Cap Screw - Specification

Cap Screws -Torque

52 N·m (70 lb-ft)

IMPORTANT: Prevent PTO damage. Clean bore in end of shaft thoroughly when installing six-spline PTO shaft for 1000 rpm use.

A-Snap Ring
B-PTO Shaft
C-540 rpm End of Shaft
D-1000 rpm End of Shaft
E-Overload Collar

AG,RX15494,3106 -19-24SEP01-1/1