40787
Operation (power take off disengaged)
A = Electro-pneumatic valve N.A. (usually open) with switch disengaged
B = Electro-pneumatic valve N.C. (usually closed) with switch disengaged
With the switch in position 0 (disengaged) the electromagnets of the valves A - B are disconnected and therefore the circuit of the
valve A remains open and that of valve B remains closed.
The air taken in enters valve A by link (2), leaves by link (3) and passes through the pipes to chamber E, moving the control rod
with fork D in power take off position disengaged.
At the same time the air in chamber C passes through the piping to the link (6) and passes into the air by link (5).
Figure 5
242
POWER TAKE OFF
S
TRALIS
AT/AD
Base - January 2003