Tanco Autowrap 1300 M, Руководство оператора

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Tanco Autowrap 1300 S
Operator’s manual
Fig. 13-2
S4 (VMP) Limits wraparm torque.
S3 (VMT) Ensures gradual stop of wraparm.
S1 (VBS) Ensures smooth running of wraparm
in hilly conditions.
13.4 WRAPPING ARM VALVE BLOCK.
The wrapping arm valve block is attached to the wrapping arm motor, and includes 4 valves.
When the wrapping arm starts, the oil pressure also goes to the brake so it is released. But we want a little
delay here to prevent a too hard stop when the brake goes on. This is obtained by the mounting of a nozzle
inside the fitting to the brake.
a) Non return valve.
It shall prevent the oil going back to the control valve for wrapping arm speed. It is placed inside the
block, and can only be reached by removing the whole block from the motor.
b) Safety valve on the plus side. (S3, fig.13-2).
This valve shall provide a gradual stop of the wrapping arm and prevent accumulation of pressure
on the motor's outlet side when the arm stops. The valve lets the oil flow from the outlet side of the
motor to the input side.
c) Safety valve on the minus side. (S4, fig.13-2).
This valve limits the max. torque of the wrapping arm. The valve lets the additional oil over to the
motors' outlet side. It is adjusted so that the pull force on the far end of the arm is approx. 35 KP.
d) Holding valve. (S 1, fig. 13-2)
This valve regulates the oil flow on the outlet side to be able to hold a constant input pressure to the
wrapping arm motor. This makes the motor go smooth, and the brake is not activated even if the
wrapping arm rotates easy "downwards". (If the machine is in an oblique position while wrapping).
IMPORTANT: All these valves have been carefully set in the factory. Incorrect adjustment of these
may cause damage to the machine. Always ensure that trained personnel only adjust the
settings of these valves.