Safety and operating instructions
© Construction Tools PC AB | 98001365 01 | 2020-09-24
Original Instructions
15
Choose the correct dimension and length for the hy-
draulic hose. For hose lengths up to 30 meters, a hose
with a minimum internal diameter of 16 mm (⅝ in.) must
be used. To choose the correct hose, see the spare
parts list.
To resist exterior wear and tear, we recommend using a
2-layer hydraulic hose. The machine connection marked
P (pump) is the oil inlet, and the connection marked T
(tank) is the oil outlet. Always fill up the hydraulic hoses
with oil and circulate it before connecting the rock drill.
Use a pump to circulate the oil, see the spare parts list.
Connect both hoses and make sure that all hose con-
nections are tight. Never carry the machine by the hose.
NOTICE
Attach the return line hose and the pressure
line hose according to matching colors. The red color is
for the pressure line, the blue color is for the return line.
5.3 Quick-release couplings
The original 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. En-
sure that couplings are clean and correctly engaged be-
fore 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.
5.4 Hydraulic oil
In order to protect the environment, use of biologically
degradable and flame proof hydraulic oil (HFD-U) is rec-
ommended. No other fluids must be used.
n
Viscosity (preferred) 40-60 cSt. at working tempera-
ture.
Make sure to only use clean oil and filling equipment.
When the machine is used continuously, the oil tempera-
ture 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 be-
tween 20-40°C (68-104°F) above the ambient tempera-
ture. At working temperature, the oil viscosity must be
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 ma-
chine 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 60°C
(140°F).
5.5 Methods to prevent freezing
If the rock drill freeze, never heat it to melt the ice. Al-
ways let the ice melt at room temperature.
Never pour methylated spirits or similar substances into
the rock drill, as they will interfere with the lubrication
and lead to increased wear.
If the temperature is below 0 °C, blow out the water hose
with compressed air before storage to avoid frost expan-
sion.
NOTICE
Maximum allowable air pressure is 7 Bar.
5.6 Pressure adjustment
5.6.1 Hydraulic oil pressure
The hydraulic oil pressure is regulated by the PP 100.
Ensure that it can deliver the required oil pressure of
100-120 bar (1,450 – 1,740 psi) to the machine.
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Too high pressure causes rough operation and ex-
cessive wear.
n
Too low pressure results in a slow drilling speed.
5.6.2 Water pressure
The water pressure is regulated by the PP 100. The in-
coming pressure to the PP 100 must be between 5 - 7
bar (73 - 102 psi) at a flow rate of 12 l.p.m (2.6 UK gal/
min) to obtain good water flushing and good functionality
on the pusher leg.
5.7 Drill steel
WARNING
Running power pack
Changing the drill steel or accessories while the power
pack is running can cause serious injury.
u
Shut off the power pack and disconnect the hydraulic
hoses during mounting or dismounting of the drill
steel.
u
Secure the power pack against involuntary activa-
tion.
Содержание RD 100
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