TESTING AND ADJUSTING
ADJUSTING WORK EQUIPMENT. SWING PPC VALVE
ADJUSTING WORK EQUIPMENT.
SWING PPC VALVE
*
A
1.
2.
3.
4.
5.
If there is excessive play in the work equipment or
swing lever, adjust as follows.
Lower the work equipment to the groud and stop
the engine. Loosen the oil filler cap slowly to release
the pressure inside the hydraulic tank. Then set the
safety lock lever to the LOCK position.
Remove the PPC valve.
Remove boot (1).
Loosen locknut (2) then screw in disc (3) until it con-
tacts the 4 heads of piston (4).
* When doing this, do not move the piston.
Secure disc (3) in position, then tighten locknut (2) to
the specified torque.
- Locknut : 107.8 i 9.8 Nm (11 f 1 kgm)
Install boot (1).
* With the above adjustment, the clearance be-
tween disc (3) and piston (4) becomes 0.
20-53
a
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