Design And Function - SIKA P40.2 Notice D'utilisation

P40.2 / P60
3

Design and function

Operating elements:
 Hand grips
Fine adjustment valve (handwheel)

 Pressure relief valve (rotary knob)
'Pressure / vacuum' switch valve (rotary

knob)
Knurled nut (two parts with lock nut)

Connectors:
Connector reference gauge

Pressure hose with cap screw (test item

connection)
Main components:
Pump body

 Piston rod with internal spring
Function:
The test item respectively the pressure device to be tested (hereafter referred to as 'test
item') is connected to the cap screw of the pressure hose.
Pumping is carried out by repeatedly pushing the hand grips together (for a vacuum, by pull-
ing them apart). An internal spring returns the hand grips to their start position.
The pumping movements are transferred to the pistons in the pump body via the push rods.
Pressure or vacuum is generated there, depending on the switch valve setting. The construc-
tion of the hand pump means that the same pressure/vacuum is generated for the test item
as for the reference test gauge.
The pressure or the vacuum is set to the necessary value using the fine adjustment valve.
Using the pressure relief valve, the pressure or the vacuum can be reduced as needed or
completely released. The generated pressure or vacuum is displayed on the reference test
gauge and compared with the measurements of the test item.
The knurled nut is used to set the spring preload settings and limit the pumping range.
Technical changes reserved.
Design and function
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