Various parts of the hand pump
3.1
C
ALIBRATION
OF
P
RESSURE
/V
ACUUM
G
AUGE
:
1.
Fix the Master Gauge to one of ports. Use of the O-ring ensures hand tight is sufficient.
2.
Fix the test gauge at the other port in the same way.
3.
Select the mode of calibration. Pressure mode or Vacuum mode by pushing the mode pin. Use a small screw driver for doing this.
4.
Tightly close the release valve and place the priming cylinder in the outer most position while using in pressure mode or in th e innermost
position while using in vacuum mode
5.
Generate the pressure/vacuum by operating the handle.
6.
When the required value is reached, fine tune the value by using the priming cylinder. Note the value shown by both Test and master gauge.
7.
Similarly note the value at another range and if required adjust the test gauge.
8.
When the testing is over, release the pressure before removing the gauges.
Preventive Maintenance
Replace O-rings when required. Continuous use of the same O-rings will result in leakage which can not be arrested.
8. Troubleshooting Section:
PROBLEM
CAUSE
REMEDY
Pressure/Vacuum not generated
1.
Leakage
2.
Piston seal damaged
3.
Mode selection wrong
1.Arrest leakage
2. Replace piston seal
3. Select the mode properly
Of the 2 gauges only one gauge show change
in pressure / Vacuum and the other do not
show any change
1.Block in the line
1.
Check and clear blockage
Test or Master gauge
Priming cylinder with
Release valve
Hose for Test or Master Gauge
Handle for operating the
piston
Pressure/Vacumm mode
Selector pin
