HB 3600, HB 3600 DP
HB 4700, HB 4700 DP
The following accessories can be supplied:
1 nitrogen filling device
1 test pressure gauge ¼", 0-25 bar, test category 1.6
1 nitrogen bottle
1 adapter, country-specific
To enable the following inspection and maintenance
activities to be carried out, the equipment referred
to above has to be directly available at the location
of use at all times.
Checking the pressure in the piston
accumulator
Check the gas pressure in the piston accumulator if
the hydraulic breaker does not work. Do not top up
the piston accumulator unless the gas pressure is
equal to or less than the minimum gas pressure.
Check the pressure in the piston accumulator when
the hydraulic breaker is at operating temperature
(60-70 °C).
♦
Lay down the hydraulic breaker.
Do not apply pressure to the working tool.
♦
Remove the threaded plug (A) from the filling valve
»G«.
♦
Push the hose end of the test pressure gauge (B)
into the filling valve and note the pressure.
♦
If the value measured is below the required gas
pressure add nitrogen into the piston accumulator.
The required pressure in the piston accumulator is:
with an operating temperature 60-70 °C and
without exerting pressure!
Required gas
pressure
Minimum gas
pressure
Type
16.7 bar14.2 barHB 3100,
HB 3100 DP
14.0 bar11.5 barHB 3600,
HB 3600 DP
14.2 bar11.7 barHB 4100,
HB 4100 DP
13.0 bar10.5 barHB 4700,
HB 4700 DP
© 2012 Atlas Copco Construction Tools GmbH | No. 3390 5096 01 | 2012-04-26
Original instructions
48
HB 3100, 3100 DP, 3600, 3600 DP, 4100, 4100 DP,
4700, 4700 DP
MAINTENANCE
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