Problems - SIKA P40.2 Notice D'utilisation

P40.2 / P60
Pumping process:
The pressure increase per pump stroke can be set with the stroke limitation and the settings
of the fine adjustment valve.
Furthermore the pressure increase is dependent on the current counterpressure, the total
volume of the test item and the energy of the pumping movements.
The following diagram shows, as an example, the pumping process with the hand pump at
different settings.
Stroke limitation:
max. pump stroke

min. pump stroke

Setting the fine adjustment valve:
Pump body stop collar (▬▬)

Storage / transportation (▬▬)

 Pressure relief valve stop collar (▬▬)
7

Problems

CAUTION! Material damage!
The hand pump cannot be repaired by the user. In case of a defect, the device must be
replaced or returned to the manufacturer for repair.
 Never open up the hand pump and / or perform any repairs yourself.
The following table details what problems you can solve yourself and how to solve them.
Problem
Pressure cannot be built up
(creation of vacuum).
Pressure / vacuum fades (un-
stable).
The first pump stroke is stiff. Not a defect. Due to adhesive
Pumping stroke stiff.
Technical changes reserved.
(
 )
(
 )
Possible cause
Defective / incorrect seal.
Seal incorrectly positioned.
Pressure relief valve open.
Switch valve in mid-position.
Leakage in the test item.
forces the first pumping process
requires a large amount of energy.
High counterpressure in the test
item.
Remedy
Check seal (size / material / wear).
Check positioning of seal.
Close pressure relief valve.
Turn the switch valve to the de-
sired position.
Check connections.
Check positioning of seals.
Carry out the first pumping proc-
ess with the pressure relief valve
open.
Increase the pressure with the
handwheel of the fine adjustment
valve.
Problems
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