H y d r a u l i c
R o t a r y H a m m e r D r i l l
2 2 4 1 8 0 0 1 0
M a s c h i n e n f a b r i k G m b H
Spitznas Maschinenfabrik GmbH, Fellerstr.4, D-42555 Velbert, Tel: +49(0)2052 605 0, Fax: +49(0)2052 605 29
, www.spitznas.de
Translation of the original operation
manual, compiled: 12.09.13
224180010_BA_en_Version_06
Page 6 of 11
Hydraulic system requirements
An operation pressure of 80 bar/ 1137 PSI and a volume flow of 15 l/ min/ 4 gallons/ min is
required to achieve the specified performance data. Volume flow of more than 15 l/ min / 4 gallons/
min is conveyed back to the tank via a bypass. At pressure of more than 80 bar/ 1137 PSI,
a pressure control valve has to be used. (Pressure control valve 2 2406 9900)
WARNING!
Never use your hydraulic tool without a pressure relief valve in line!
The system should not have more than 250 PSI/ 17 bar back pressure measured at the tool end of
the operating hoses. The system conditions for measurement are at maximum fluid viscosity or
400 ssu / 82 centistokes (minimum operating temperature).
The hydraulic system should have sufficient heat rejection capacity to limit the maximum oil
temperature to 140° F / 60° C at the maximum expected ambient temperature. The recommended
minimum cooling capacity is 5 hp / 3.73 kW at a 40° F / 4° C difference between ambient
temperature and oil temperature.
The hydraulic system should have a minimum of 25 micron full-flow filtration. It is recommended
that filter elements be sized for a flow of at least 30 gpm/ 114 lpm for cold temperature startup and
maximum dirt holding capacity.
The recommended hose size is 0.500 inch / 12 mm I.D. to 50 ft / 15 m long and 0.625 inch /
16 mm I.D. minimum up to 100 ft / 30 m long.
The rotary hammer drill return hose must connect directly to the circuit return line and go straight
through the oil filter, thermal valve, and oil cooler to the reservoir. To prevent trapped or reversed
pressure, fluid should not be returned through a blocking or reversing valve.
The rotary hammer drill cannot be operated with the hydraulic flow reversed. Supply (IN) and
return (OUT) hoses must be connected as marked on the sides of the tool ports.
IMPORTANT!
Do not run the tool return hose through stack or directional valves. If the circuit is operated from a
stack valve, tap only the pressure port to the valve. Connect the tool return directly to the return
fluid line.
Your hydraulic rotary hammer drill is an open-center tool. Operate open-center tools from open-
center hydraulic circuits only. Operate closed-center tools from closed-center hydraulic circuits
only.
The rotary hammer drill can be operated with oil only.
Pay attention that the rotary hammer drill is not operated with pressure exceeding the
characteristics indicated, when power is supplied by the system.
Apply pressure reducing valves, otherwise the machine could be damaged or destructed.
When working in a surrounding at 4° C, impact interruptions can occur. Therefore it is
recommended to start the machine and warm it up first.