English
5.906-494.0 Rev. 01 (04/11)
21
The removed piston with springs and seal set
Adhere to the sequence of the seal set and the
springs when assembling.
The seal set includes an O-ring 14x1,5-NBR 70.
Open the screw connection.
Replace the support ring and the O-ring.
During the assembly, ensure the correct installa-
tion sequence of the O-ring and the support ring.
Note
Grease all O-rings with Ontropeen (part number:
6.288-088.0 5 grams, 6.288-079.0 100 grams). Fill
the hollow spaces with grease.
Reassemble the hand spray gun in the reverse se-
quence.
1 Ceramic disc on spray pipe side
2 Ceramic disc on gun side
The ceramic disc on the gun side is rigidly connected
to the gun connection. The ceramic disc on the spray
pipe side is connected to the regulator and therefore
adjustable.
Offset holes in the ceramic discs can adjust the flow
volume when rotating the discs. This illustration
shows the two overlapping ceramic discs and the wa-
ter flow (blue) with different opening angles (from 0°
to 90°).
With the minimal setting, the water flows through a
small hose in the middle of the ceramic discs.
Cross section of the power press regulator (gun side)
1 Ceramic disc on gun side
2 Casing of rotating regulator
3 Connecting pin
4 Handle of rotary regulator
5.6.2 Adjustments on the power press regulator
2
1
2
1
3
4
