Practical / Usage Guidelines - SIKA P40.2 Notice D'utilisation

Practical / usage guidelines

Completing the pressure or vacuum measurements:
Once the pressure or vacuum measurements have been completed, the positive or negative
pressure in the hand pump, the test item and in the pressure hose need to be brought into
balance.
CAUTION! Risk of injury through excessive pressure!
Do not remove any connected components (test item, pressure hose, reference gauge) if
+p the hand pump is under pressure.
 Open the pressure relief valve before removing any of the components.
 Releasing pressure / equalising vacuum:

Turn the pressure relief valve knob 2-3 rotations in an anti-clockwise
direction and wait until there is no longer any positive or negative pres-
sure.
 Remove the test item with adapters and seals from the pressure hose.
 Put the hand pump away along with any accessories which have been
used.
( § 8: "Maintenance/cleaning, storage and transportation")
REFERENCE GAUGE + PRESSURE HOSE
The common reference models fit into the gaps in the transportation case and do not
need to be removed. The pressure hose can also remain attached to the hand pump. It
should generally never be removed.
6 Practical / usage guidelines
Preloading the springs / stroke limitation:
The preloading of the springs changes how much power the hand grips have to reset them-
selves. The stroke limitation changes the size of the pumping strokes and therefore the
pumping volume of the hand pump.
The spring preload settings and the stroke limitation are set with the knurled nut.
KNURLED NUT
The knurled nut is made up of two parts. The upper part is used to adjust the spring pre-
load settings and the pumping stroke. The lower part is the lock nut and fixes the setting.
Setting the spring preload / stroke limitation:
 Loosen the countering of the knurled nut.
 Set the desired spring preload / pumping stroke
with the knurled nut.
Turn to the upper stop:
• the spring preload increases.
• the pumping stroke decreases.
Turn to the lower stop:
• the spring preload decreases
• the pumping stroke increases.
 Fix the setting with the lock nut of the knurled
nut.
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P40.2 / P60
© SIKA • Ba_P40.2 • 01/2014