Specifications

Service Training
Page 4.2
Section 31
09.04
4.2.3.1 ADJUSTMENTS
CONDITIONS
- Jack up and securely block the truck so that both traction wheels can rotate freely.
- Hydraulic oil at operating temperature.
4.2.3.1.1 HYDRAULIC NEUTRAL POSITION
- Hold the eccentric pin (6) with a socket head spanner.
- Slacken the hexagonal nut (5).
- Start the engine and let it idle.
- Gently turn the eccentric pin (6) with the socket head spanner until the traction wheels cease to rotate.
The mark (7) on the pin (6) will point toward the bleed screw (15).
- Continue to turn the pin (6) until the wheels start to turn. Note the position of the spanner.
- Turn the pin (6) back until the wheels start rotating in the opposite direction. Note the position of the
spanner.
- Turn the eccentric pin (6) back half way from the noted spanner position.
- Lock the hexagonal nut (5).
- Manually bring the engine to maximum speed. The wheels should not rotate. Repeat the adjustment if
necessary.
4.2.3.1.2 PRIMARY ADJUSTMENT OF START OF CONTROL
- Let the engine run at low idle speed and slacken the grooved nut (8).
- By turning the setscrew (9), the pressure springs (10) are either tensioned or relieved so that the wheels
start to rotate at a differential pressure of 4 bar between Y and Z. The pressure difference must be preset
by depressing the accelerator pedals.
4.2.3.1.3 MECHANICAL LIMITATION OF THE SWASHPLATE ANGLE
- Slacken nut (11).
- Start the engine and let it idle.
- Release the brake.
- Screw in the threaded pin (12) with a socket head spanner until the wheels just start to turn.
- In this position measure the distance the threaded pin (12) is behind the front of the setscrew (9).
- Now turn the threaded pin (12) out for 11 mm and lock with the nut (11).