HYDRAULIC EXPANDING UNIT FOR ROCK-BOLTING
HEU 320-40E
March 2011
SAFETY PRECAUTIONS
The pressure in both hydraulic and pumping fluid circuits is considerably high. There at the technical
condition of your equipment should be under constant scrutiny. Especially couplings, valves and hoses
should be maintained tight and clean as well as kept under constant observation.
Hydraulic leakages must be rectified immediately to avoid injuries caused by pressure and hot oil
blowouts.
Follow all your local safety instructions related to the high pressure hydraulics.
Hydraulic system of a carrier machine should be maintained according to the service program.
In order to exclude possible accidents, it is not allowed to clean or inspect HEU-pump when hydraulic
or/and pumping fluid circuit is pressurized. Prior to any cleaning, inspection and service hydraulic
system of your carrier machine must be stopped and both hydraulic and pumping fluid circuits
dissipated.
Always wear appropriate clothing and safety equipment such as goggles, ear protection and safety
shoes at all times when operating the HEU-unit.
When operating the tool, beware of machinery parts warmed by hot hydraulic oil.
Do not lift the tool by the water hose.
NEVER POINT THE EXPANDING GUN AT BYSTANDERS OR ANY INAPPROPRIATE OBJECT!
EXTERME CLEANLINESS MUST BE MAINTAINED WHEN CARRYING OUT ANY SERVICE DISSASSEMBLING
OR REPAIR OF HRN-TOOL AND HYDRAULIC SYSTEM. THIS IS CRUCIAL TO ENSURE SAFE, RELIABLE
AND LONG-LIFE OPERATION OF YOUR EQUIPMENT.
Operators and maintenance personnel must always comply with local safety regulations and precautions
in order to close out the possibility of damages and accidents.
All installation and service of both hydraulic and electric equipment must be performed by qualified
and experienced personnel only.
PUMPING FLUIDS
Water based fluids and sea water can be pumped without any special arrangements, however the
HRN-tool MUST BE FLUSHED AND CLEANED THOROUGHLY after a working shifts with clean sweet water.
Same rule applies to pumping of gelatin and depositing fluids —after having done your job, flush
HRN-tool with clean water or suitable solvent.
Solvents, fuels and oils can be pumped without any special arrangements.
Fluids with abrasives or high content of solids can be pumped as well, but should be kept in mind, that
HRN-tool’s service life time is considerably shortened.
Furthermore, if pumping solution is aggressive to NBR-rubber, special seals and hoses must be used.
WARRANTY
DYNASET products are warranted against defects in materials and workmanship for a period of 12
(twelve) months from the date of purchase. Exceptions are parts subject to normal wear and tear, such
as seals and other parts that become worn through normal use of the unit.
Warranty covers detective parts solely. Expenditure incidental to shipping and replacement are not
covered by present warranty.
The warranty is void if product has been modified, provided with parts other than original or misused.
4 / 5