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English
5.906-591.0 Rev. 00 (01/14)
17
Danger
Prior to all work on the appliance, switch off the appliance
and pull the power plug.
* The control valve switches off the electric motor by
means of the pressure surge that is created when closing
the hand spray gun. Subsequently, the control valve ef-
fects a pressure reduction to 30...40 bar. In this way, the
pump and accessories are protected and the force for
opening the hand spray gun is reduced. For pumps that
are equipped with this control valve, the pressure cannot
be regulated on the hand spray gun (Servopress).
AE Service group pump
010 Safety information
020 Overview
1
Valve detergent
2
Suctioning of detergent
3
Control valve, complete *
4
Control boring
5
O-ring, low-pressure range/high-pressure range
6
Seals control piston
7
O-ring, oil
8
Piston spring
9
Spring plate
10 Piston, with drip edge
11 Oil seal piston guide
12 Piston guide
13 Spacer
14 High-pressure seal with support washer
15 Cylinder head
16 Valve gear casing
17 Suction valve, caulked
18 O-ring, valve gear casing
19 Pressure valve
20 Pressure holding valve
21 Injector nozzle
030 Function