SERVICE MANUAL FOR TC213F

c.Valve base set

The valve base set comprises a flow control valve and a relief valve [set pressure: 120 kgf/cm2 (12.2 Mpa)].

CHAPTER 8. HYDRAULIC SYSTEM

4.COMPOSITION OF HYDRAULIC LINKAGE

The control valve spool is constantly pushed toward lowering position by the spring. The spool is shifted to the neutral or the lifting position by the pin. There are two ways of moving the arm: one by the arm integrated with the pin and the other by the pin of the detente mechanism.

4.1.CONTROL LEVER

•Three positions are selectable: Up, Neutral, and Down, but this is not actual position control.

•When the lift arm is raised to a specific height, the rod is pulled to return the control lever to the neutral position.

Notch for UP position

Notch for Neutral position

Notch for DOWN position

4.2.ADJUSTMENT

When the control valve and lever bracket have been removed, be sure to confirm the following items when reinstalling them: i.When the control lever is shifted to the UP position with the rotary hoe landed, the detent should be seated securely in the concave for UP. îi.Adjustment is made by the number of M6 washers inserted. iii.When the spring has been removed, the installed length of the spring should be determined without mounting the valve on the tractor.

–The spring holder should be locked without fail.

–Installed length of spring: 25.5 mm

Spool's shifting dimensions

CHAPTER 8. HYDRAULIC SYSTEM

25.5 mm (spring length when installed)

9 mm (stroke)Up position: 16.5 mm

Notch for up position

Detent

Control valve

M6 washer Spring holder Spring

Spool

Bend open the ends of the cotter pin securely.

Tighten the lock-nut securely.

Apply screw locking agent (Chemiseal L324).

Tighten using a lower frame tightening nut.

Lower links should move smoothly.

Tighten on the rear axle using the rear axle tightening bolt. Bend open the ends of the cotter pin securely.

Tighten without fail.