KMS Powers

General Rules for PTO Installation

P.D. 11.07.2025

• Use the appropriate tools and instruments such as torque wrenches, gauges, and thickness gauges.


• Use only gaskets supplied by the manufacturer. Use paste gasket only if recommended.


• Mastic is forbidden if used together with paper gaskets.


• It is advisable to use medium thread locking fluid for locking bolts and studs.


• Perform all installation operations with the vehicle standing on a level surface; otherwise, oil levels cannot be checked.


• Operate with engine and gearbox at ambient temperature.


• Check that the PTO is equipped with the correct mounting kit.

Tightening Torque

For some aluminum gearboxes, the tightening torque needs to be reduced by 30%. Note on the tightening torque: the tightening torques reported are only meant as a guide and do not replace the indications given by the vehicle’s manufacturer or the gearbox manufacturer.

Safety Information

• Carefully read the user manual provided and take notice of the instructions indicated.

• The important sections for operator safety and a prolonged product life are marked with symbols. Take notice of such symbols.

• Never work alone when doing repair or maintenance work under the vehicle.

• Make sure to check if the instructions you follow and the tools you use are intended for the work you are engaging in.

• Never use worn or damaged parts.

• Do not attempt any modification on the PTO or any other drive components of the vehicle.

• Ensure to mount the parts properly.

• Check backlash when the engine is stopped.

• Do not go under the truck when the engine is running.

Instructions for Operation in Cold Weather

The disengaged PTO might transmit high levels of instant torque in cold weather (0°C and below), leading to rotation on the output shaft. This motion might result in injuries or damage to the PTO.

For prevention of injuries and damage to the equipment:

• Check the drive components of the vehicle.

• Do not attempt to use drive components without warming up the vehicle.