6
Problems
CAUTION! Material damage!
The hand pump cannot be repaired by the operator! In the case of a defect, the appliance
must be sent back to the manufacturer for repair.
Never open up the hand pump and / or carry out any repairs yourself.
The following table details what problems you can solve yourself and how to solve them.
If you are unable to remedy any particular problems, then immediately disconnect the hand
pump.
Contact your supplier or directly to SIKA. Please send the device for repair with a brief de-
scription of the problem, the environmental conditions and the length of time the device was
operational before the problem occurred.
6.1
Return shipment to the manufacturer
Due to legal requirements placed on environmental protection and occupational safety and
health and to maintain the health and safety of our employees, all units returned to SIKA for
repair must be free of toxins and hazardous substances. That also applies to cavities in the
devices. If necessary, the customer must neutralise or purge the unit before return to SIKA.
Costs incurred due to inadequate cleaning of the device and possible costs for disposal
and/or personal injuries will be billed to the operating company.
WARNING! Risk of injury due to insufficient cleaning!
The operating company is responsible for all damages and harm of any kind, in particu-
lar physical injuries (e.g. caustic burns or toxic contaminations), decontamination
measures, disposal etc. that can be attributed to insufficient cleaning of the measuring
instrument.
Comply with the instructions below before returning the unit.
Problem
Possible cause
Remedy
Pressure cannot be built up. Defective / incorrect seal.
Check seal (size / material / wear).
Seal incorrectly positioned.
Check positioning of seal.
Pressure relief valve open.
Close pressure relief valve.
No further increase of pres-
sure is possible
Air was sucked in during pressure
generation.
Open pressure relief valve so that
the air can be rinsed out of the
piston system.
Ensure the correct position of the
hand pump during pressure gen-
eration.
Pressure fades (unstable).
Leakage in the test item.
Check connections.
Check positioning of seals.
Pumping stroke stiff.
High counter pressure in the test
item.
Increase the pressure with the
hand wheel of the fine adjustment
valve.
