Clutch Solenoid Valve - Komatsu WA250-6 Shop Manual

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200 Power train

Clutch solenoid valve

P: From HST charge pump

A: To transfer clutch

1. Clutch solenoid valve

WA250, 250PZ-6

When the current value of input signal is large,

the transfer clutch drains oil pressure.

As the current value of input signal becomes

smaller, oil pressure of the transfer clutch goes

higher inversely proportional to the current

If the current value of input signal is further

lowered until the oil pressure of the transfer

clutch reaches the oil pressure at which oil is

pressure-fed from the HST charge pump, the

oil pressure of the transfer clutch remains at

this level even if the current value may be fur-

ther decreased.

Table of Contents

Wa250pz-6 75001