Tilt control system of forklift

A tilt control system of a forklift comprising:

• a main hydraulic line including a tilt cylinder configured to tilt a mast forward or backward, a first hydraulic pump configured to supply a working fluid to the tilt cylinder, and a direction control valve configured to control a tilt direction of the mast;
• and
• a pilot hydraulic line including a second hydraulic pump configured to supply a control fluid, a remote control valve connected to the direction control valve and configured to control the direction control valve, and a pressure reducing valve provided between the direction control valve and the remote control valve,
• wherein the pressure reducing valve includes a push rod configured to be displaced by one end being pressed or released by the tilt cylinder, the pressure reducing valve configured to reduce pressure of the control fluid at a rear end of the pressure reducing valve on the pilot hydraulic line according to a displacement of the push rod when a tilt angle of the mast exceeds or is less than a preset angle range.