Replacement Of The Stop Valve (With Check Joint); Replacement Of The High Pressure Switch (Psh); Replacement Of The Pressure Sensor (Pd); Replacement Of The Pressure Sensor (Ps) - Hitachi SAMURAI Series Service Manual

3 Servicing
Cycle components

3.3.9 Replacement of the stop valve (with check joint)

1 Remove the brazed parts using a blowtorch
and previously cooling the pipe side and the
stop valve unit with wet cloth in order to avoid
brazing material enter inside the pipes.

3.3.10 Replacement of the high pressure switch (PSH)

1 Disconnect the cables (9 and 10 of the
Pressure switch from the E-box of the
compressor terminal board).
2 Remove the screw of the clamp that fixes the
switch.
3 Unscrew the switch and proceed to its
replacement
4 When reassembling proceed in reverse order
than removing.

3.3.11 Replacement of the pressure sensor (Pd)

1 Disconnect the cables (4, 5 and 6 of the
pressure sensor from the E-box of the
compressor terminal board).
2 Remove the screw of the clamp that fixes the
switch.
3 Unscrew the switch and proceed to its
replacement
4 When reassembling proceed in reverse order
than removing.

3.3.12 Replacement of the pressure sensor (Ps)

1 Disconnect the cables (1, 2 and 3 of the
Pressure sensor from the E-box of the
compressor terminal board).
2 Unscrew the sensor and proceed to its
replacement
3 When reassembling proceed in reverse order
than removing.
73 SMGB0120 rev.0 - 11/2017
Brazed parts
Screw
Screw
High pressure
sensor (Pd)
Pressure sensor
(Ps)
Stop valve
Check joint
High pressure
switch (PSH)
Clamp
Clamp
3