Morra MH 420, Руководство по сборке

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9. Install the dust covers and outer tire & wheels onto the spindles
the outer arms. The bearings in these wheels are sealed but it is still
is a good idea to put grease in the dust cap. Align the wheel in the
travel position.
There is a left and a right arm. They are easy to recognize by the
position of the bracket for the hydraulic cylinder mount.
10. To attach the arm to the central unit, turn the rotor on the
central unit until the keyway on the shaft is at 12:00 and install the
keyway provided. It is also important to be sure there is no paint on
the shaft. You will also need to buff the paint from the yokes (inside
of central unit, outside of the arm)so that there is no problem with
fitting.
*This is also a good time to grease the universal joints on the arm.
Before installing the arm to the central unit, with the keyway at 12:00
and the arm yoke in line, you will want to notice the “timing” of the
unit to be sure that the inner and outer rake teeth will not collide.
You will need to start the yokes of the arm onto the shaft & tamp them
on with a rubber hammer until it is completely in position.