M-4. Bleeding air from hydraulic cylinders (Part 2

M-4

1.Bleeding air from cylinder with piston valve (Blade lift cylinder)

1)With the engine at high idle, retract the cylinder to a point approx. 100 mm before the end of the stroke, then use fine control (at least 10 seconds) to retract the cylinder to the end of its stroke. While operating the lever, hold the cylinder in this position for 1 minute.

2.Bleeding air from cylinder without piston valve (Blade tilt cylinder, ripper lift cylinder, ripper tilt cylinder)

1)While running the engine at high idle, repeat this operation for 5 minutes. Then run the engine at low idle and operate the piston rod to the end of its stroke to relieve the circuit.

3.After bleeding the air, leave the engine stopped for 1 hour.

1)After leaving for 1 hour, check the oil level in the hydraulic tank. (Check that the oil level is between "L" and "H" of the sight gauge. If it is not between "L" and "H", add oil.) a When checking the hydraulic oil level, see assembly procedure “A-10-4. Oil level check position”.

k Check the oil level, and add oil to the specified level if necessary.