Quick-Release Couplings; Hydraulic Oil; Nipple - Atlas Copco LH 11 Instrucciones De Seguridad Y De Funcionamiento

LH 11, 180, 190, 220, 230, 270, 280, 390, 400
and the connection marked T (tank) is the oil outlet.
Always connect both hoses and make sure that all
hose connections are tight. Never carry the machine
by the hose.

Quick-release couplings

The original Atlas Copco hydraulic hoses are fitted
with Flat-Face quick-release couplings that are strong
and easy to clean. The quick-release couplings are
fitted so that the male connection supplies oil and
the female connection receives oil.
NOTICE Wipe all couplings clean before
connecting. Ensure that couplings are clean and
correctly engaged before operation. Failure to do so
may result in damage to the quick couplings and
cause overheating and cause foreign matter to enter
the hydraulic system.

Hydraulic oil

In order to protect the environment, Atlas Copco
recommends the use of biologically degradable
hydraulic oil. No other fluids must be used.
♦ Viscosity (preferred) 20-40 cSt.
♦ Viscosity (permitted) 15-100 cSt.
♦ Viscosity index Min. 100.
Standard mineral or synthetic oil can be used. Make
sure to only use clean oil and filling equipment.
When the machine is used continuously, the oil
temperature will stabilise at a level which is called
the working temperature. This will, depending on the
type of work and the cooling capacity of the hydraulic
system, be between 20-40°C (68-104°F) above the
ambient temperature. At working temperature, the
oil viscosity must lie within the preferred limits. The
viscosity index indicates the connection between
viscosity and temperature. A high viscosity is
therefore preferred, because the oil can then be used
within a wider temperature range. The machine must
not be used, if oil viscosity fails to remain within the
permitted area, or if the working temperature of the
oil does not fall between 20°C (68°F) and 70°C
(158°F).

Nipple

At delivery, breakers LH11, LH 180 and LH 190 E
are factory set to 20 l.p.m (EHTMA C). They can not
be adjusted to a higher flow. LH 220, LH 220 HBP,
LH 230 E, LH 230 E HBP, LH 270, LH 270 HBP, LH
280 E and LH 280 E HBP are supplied factory set to
30 l.p.m (EHTMA D). There is a plastic bag in the
© 2011 Atlas Copco Construction Tools AB | No. 3392 5206 90b | 2011-01-27
Original instructions
Safety and operating instructions
package with a label and restrictor nipple that should
be mounted on the tank line (T) if there is a need for
the breaker to be set to 20 l.p.m. The size of the
orifice is stamped on the nipple. LH 390. LH 390
HBP, LH 400 E and LH400 E HBP are supplied
factory set to 30 l.p.m (EHTMA D). They also have
a plastic bag in the package with a label and a nipple
with no restrictor if there is a need for the breaker to
be operated at 40 l.p.m (EHTMA E).
Oil flow rate
20 l.p.m
LH 11 no restrictor
LH 180 no restrictor
LH 190 E no restrictor
LH 220 restrictor
3.4
LH 230 E restrictor
3.4
LH 270 restrictor
3.4
LH 280 E restrictor
3.4
LH 390 -
LH 390 -
HBP
LH 400 E -
LH 400 E -
HBP
Oil flow rate
20 l.p.m 20 l.p.m
Back Back
Pressure Pressure
<10bar 10-35 bar
LH restrictor 2.8 restrictor 3.2
220
HBP
LH restrictor 2.8 restrictor 3.2
230 E
HBP
LH restrictor 2.8 restrictor 3.2
270
HBP
LH restrictor 2.8 restrictor 3.2
280 E
HBP
There is no EHTMA category for the intermediate
flows.
Replacing the nipple
30 l.p.m 40 l.p.m
- -
- -
- -
no -
restrictor
no -
restrictor
no -
restrictor
no -
restrictor
restrictor no restrictor
4.2
restrictor -
5.2
restrictor no restrictor
4.2
restrictor -
5.2
30 l.p.m 30 l.p.m
Back Back
Pressure Pressure
<10bar 10-35 bar
restrictor 3.4 no restrictor
restrictor 3.4 no restrictor
restrictor 3.2 no restrictor
restrictor 3.2 no restrictor
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