Tweco 42 CutMaster Service Manual - Manual (Page 45)

TROUBLESHOOTING CUTMASTER 42
Manual 0-5171 6-9 Troubleshooting
6.10 Check Pressure Switch
1
2
Art # A-10292
1. Pressure switch open
When the pressure is up to 3.5kgf/cm
2 (49.78 PSI), the pressure switch turns off.
2. Pressure switch closed
When the pressure is less than 2.4kgf/cm
2 (34.13 PSI), the pressure switch turns on and the resistance between 1
and 2 is about 0.1Ω.
6.11 Check Regulator
1
Art # A-10293
When solenoid valve is on,adjusts the knob 1. If the pressure is continuously adjustable, the regulator is ok.