Power take-off gearbox housing

Complete with 5189189

Potential problems:
Engine stops when PTO is engaged with high torque attachment mounted.
Hard PTO engagement
PTO is disengaged unexpectedly

The ball valve [part number 20419310 (replaced by part number 86642304)] located in the PTO inner support oil guide (part number 87359688) is not installed.
The missing ball valve prevents soft engagement of the PTO.
Therefore, the PTO is engaged excessively hard, causing either the engine to stall or the PTO clutch to disengage.
The symptom cannot be detected by performing system pressure tests.

Check if the following conditions / symptoms are applicable:
1. check that the PTO is operating normally without an attachment attached or with an attachment at a low initial torque.
2. with attachment attached at medium/high initial torque and PTO engaged, check that engine stops when engine speed is less than 1200 rpm and PTO is disengaged when engine speed is 1500 rpm or higher.
3. test with and without activation of the PTO soft start function (if provided).
Depending on the required PTO load of the attachment, both symptoms may occur with both the PTO soft start function activated and not activated.
If the PTO shuts down or the engine stalls with these described symptoms, check the PTO support to make sure the ball is installed.
If the ball is missing, install a new ball (part number 86642304).