11.8.2
81B
Air blow the suction strainer to blow off deposits and adhering material.
Also remove foreign matter inside the cylinder part of the strainer.
WARNING
When using air blow, wear protective glasses to avoid getting deposits and dirt in
your eyes.
11.8.3
82B
After completing the cleaning, reassemble by following the removal procedure in reverse.
After completing reassembly, check that the unit runs normally by following the test run instructions.
11.9
49B
Safety Valve Adjustment Instructions
If any of the three conditions below is applicable, readjust the safety valve by referring to the [Safety Valve
Adjustment Instructions].
Usually, the safety valve is set so that it will not actuate even under use at the maximum operating pressure
setting (except during transition period where the hydraulic circuit is blocked due to a stop of the main
When the set pressure of the safety valve drops and it actuates even in the normal status due to
repeated operation over a protracted period or contaminants in the hydraulic oil.
[Judgment method]
When the oil temperature rise has become faster.
When, in the pressure holding state with the motor speed displayed, turning the safety valve
adjusting screw in the tightening direction lowers the motor speed.
When, for reasons such as the restricted withstand pressure of the hoses used, it is desired to as far as
possible suppress surge pressures that greatly exceed the set value.
