300781 • 1/2019 • H.S.
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Operating Instruction
High Pressure Cleaner cold water, mobile
Series 3x3
2 Safety
2.6
Periodic inspections
The periodic inspections are listed in Section 8 (Maintenance).
2.7
Guidelines for liquid sprayers
High pressure cleaners must be inspected by an expert in accordance with
the „Guidelines for liquid sprayers“, if necessary or at least every
12 months. The result of the test must be recorded in writing.
In the appendix of this manual there is a test sheet (proof of customer
service) to record the tests carried out.
EHRLE service technicians are experts and can be consulted and
commissioned by EHRLE service for this prescribed inspection.
2.8
Design changes to the device
Design changes to the high pressure cleaner are not permitted.
When operating a device which has been modified or changed in design,
the device will not be used for its intended purpose. If the device is not
used for its intended purpose, no liability or warranty will be accepted (see
Section 1.7, Warranty and Liability).
2.9
Safety devices
Safety devices serve to protect the user and must not be suspended or
circumvented in their function.
The high pressure cleaner has the following safety devices listed below:
●
Pressure switches:
Device functions are switched on or off (safety functions) based on type
of construction and intended use.
●
Unloader valve and non-return valve:
The first serves to adjust the operating pressure and the second valve
keeps the pump head depressurised when the trigger gun is deactivated.
●
TSS system with pump-off delay:
After deactivating the trigger gun, the pump continues operation for
approx. 30 s in the pressureless bypass mode (avoidance of too high
pressure build-up in the pump); after 30 s the high pressure cleaner
automatically switches into the stand-by mode.
●
Total Switch-off:
Automatically switches the high pressure cleaner off in the event of
prolonged interruption of operation or unused trigger gun for more
than 20 minutes.
●
Overload protection switch:
When the motor current load is too high the switch releases and the
device is switched off.
●
Mechanical arrest for trigger gun:
Prevents unintentional or unconscious activating the trigger gun.
