HP-accumulator
Accumulators are pressure containers in the context
of the European Pressure Equipment Directive
97/23/EC.
Checking the expansion bolts
Once a week, check that the HP-accumulator
expansion bolts are tight.
exact location may differ depending on breaker type
♦
Check that the expansion bolts (A) are tight.
♦
Tighten any loose bolts to the right tightening
torques (see chapter Bolt connections / Tightening
torques).
♦
If any of the HP-accumulator expansion bolts are
broken, replace all bolts.
If the pressure line »P« starts to flail violently there
is a problem with the HP-accumulator operation.
♦
Immediately stop the hydraulic breaker.
WARNING Component coming loose abruptly
The HP-accumulator is under pressure, even when
the hydraulic system has been depressurised. Screw
connections and parts of the HP-accumulator might
come loose abruptly and cause injuries.
► Never unscrew the cover or the upper shell from
a pressurised HP-accumulator.
► Have the HP-accumulator checked in accordance
with the national / regional safety provisions.
Checking the gas pressure
After the first installation of the hydraulic breaker, the
fill pressure of the HP-accumulator must be checked
at least once during the first week. If no loss of gas
is found, the second check is to be carried out after
three months. If no change in pressure is found at
that stage, then testing can be switched to annual.
Further checks, e.g. prior to installation and recurring
checks, are to be carried out in accordance with
national regulations.
♦
Check the gas pressure by using the accumulator
filling device.
♦
Follow the procedure in the respective operating
instructions.
The pre-fill pressure changes with the gas
temperature. After filling or releasing nitrogen, it is
necessary to wait until the temperature has levelled
before checking the gas pressure (20 °C).
♦
Replace the HP-accumulator if necessary.
Instructions on how to replace the HP-accumulator
is described in a seperate documentation.
♦
Before replacing the HP-accumulator, consult the
Atlas Copco Customer Center/dealer in your area.
Checking the hydraulic lines
♦
Before starting your work shift, always carry out
a visual check of all lines (pipes and hoses) from
the pump to the hydraulic attachment and from
there to the tank.
♦
Tighten any loose screw connections or hose
clamps.
♦
Replace damaged pipes and/or hoses.
Checking and cleaning the
hydraulic oil filter
An oil filter must be integrated in the tank line of the
hydraulic system. The maximum mesh width allowed
for the oil filter is 50 microns; it must have a magnetic
separator.
♦
Replace the oil filter cartridges after the first 50
operating hours.
♦
Check the oil filter every 500 operating hours and
replace as required.
53© 2012 Atlas Copco Construction Tools GmbH | No. 3390 5005 01 | 2012-05-03
Original instructions
MAINTENANCEHB 5800, 5800 DP, 7000, 7000 DP, 10000 DP
To Next Page
Loading...
Need help?
General
