30
B_03906
10
9
8
7
5
3
2
1
4
11
6
OPERATING MANUAL
VERSION 01/2013
ORDER NUMBER DOC 2333538
5.4.1
PUMP
5.4
FUNCTION
General information
The piston pump is driven with compressed air. This compressed air moves up and down
the air piston in the air motor (4) and thus also the pump piston in the fl uid section (9).
At the end of each stroke the compressed air is redirected by a reversing valve and the
control piston.
Working materials are sucked in on the upward stroke and simultaneously conveyed to the
gun in both strokes.
Air motor (4)
The air motor with its pneumatic reverse (1) does not require pneumatic oil.
The compressed air is fed to the motor via the air regulator (2) and the ball valve (3).
The air motor is fi tted with a safety valve. The safety valve has been set and sealed at the
factory. In case of pressures over and above the permissible operating pressure, the valve,
which is held with a spring, automatically opens and releases the excess pressure.
Fluid section (9)
The fl uid section has been designed as a piston pump with exchangeable ball valves. The
hard chrome-plated pump piston runs in two fi xed packings which are self-adjusting by
means of a pressure spring, thus resulting in a long life-span.
Between the air motor and the fl uid section there is a separating fl uid cup (7) for holding
the separating fl uid.
1 Control housing with integrated
silencer
2 Air pressure regulator
3 Ball valve
4 Air motor
5 Compressed air inlet
6 Mounting fl ange
7 Separating fl uid cup
8 Material outlet
9 Fluid section
10 Material inlet
11 Grounding connection
Overpressure!
Risk of injury from bursting components.
Never change the safety valve setting.
WARNING
