P.D. 11.07.2025
It must be definitely ensured when installing PTO control cable that cable support point is located either on the PTO or main transmission. If the installation is done on the chassis, the cable might get damaged or the PTO might accidentally engage due to individual vibration of the chassis and the PTO while the vehicle is moving. In consideration of these points, it must be definitely ensured that the cable is not installed on the chassis.
The pressurized air from the compressor must be checked. The pressure value should be between 90-116 psi. Water deposits might form inside the air tube due to the moisture while the compressor is running. A separate conditioner (air dryer) must be installed on the compressor to prevent this. To counter both risks, the water deposit inside the air tube must be periodically drained through relief plug. Moreover, it must be ensured that air transmission hoses do not get buckled.
PTO vacuum leakage must be inspected on the PTO and system. It must be ensured that vacuum installation hoses do not get buckled. Vacuum suction value must be inspected. The vacuum value should be between -11 and -14 psi.
The volt value of the electrical system of the vehicle (12V or 24V) must be determined, and a PTO with a suitable coil should be ordered. Attention must be paid to connecting the (+) and (-) poles of the vehicle accumulator correctly on the coil. Care must be taken to integrate the electrical control unit on the PTO body.
The electrical installation on the vehicle must be integrated with the PTO coil. The oil pressure sensor must be introduced to the vehicle computer while the engine is running after the PTO installation has been completed. Support must be sought from the vehicle main transmission authorized service point for this operation. Otherwise it might cause inefficient operation of the PTO and failure. Also it must be ensured to check coil of the vehicle electrical system (12V, 24V).
During engage/disengage process of the PTO, transmission gears should not run, this will damage the PTO and transmission gears. This is an important part of the process.
Engine runs at idle gear, transmission should be in neutral position
Engage;
1. Press the clutch for 5-7 seconds,
2. Activate PTO (depending on control type, pneumatic, electric..etc),
3. Release the clutch pedal slowly.
Disengage;
1. Press the clutch for 5-7 seconds,
2. Activate PTO (depending on control type, pneumatic, electric..etc),
3. Release the clutch pedal slowly.
For automatic transmission, depending on gearbox features, procedures might change. Please contact your truck supplier to get guidance, or contact us with information about the automatic transmission model.
