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Two tilt cylinders of double acting type are mounted on each side of the frame.
The front end of the piston rod is installed on the mast and the cylinder tail is on the
frame by pins. The tilt cylinder assembly consists primarily of a cylinder body,
cylinder cap, piston and piston rod.
The piston is welded to the piston rod. The piston, of which the outside periphery
is given two Yx-rings and a dust seal. Rings and dust seal is used for preventing leak
and dust (between piston rod and guide sleeve). The guide sleeve, fitted with an
O-ring on the outer periphery, is screwed into the cylinder body and fastened with a
lock ring.
When the tilt lever in the driver’s room is pushed forward, high pressure oil
enters from the cylinder tail side to shifts the piston forward, tilting the mast forward
6 degrees. As the tilt lever pulled backward, high pressure oil enters from the cylinder
guide sleeve. This shifts the piston to the rear, causing the mast to lilt backward 12
degrees.
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