Remove gas ballast valve
Required tool
● Screwdriver
● Allen key, 4 mm
● Allen key, 5 mm
● Torque wrench
1. Unscrew the screw from the gas ballast knob.
2. Remove gas ballast knob.
– Be careful with the O-rings.
3. Unscrew both screws from flange.
4. Remove the flange.
– Be careful with the O-rings.
5. Unscrew the rear screw from the flange and remove washer and plate spring.
6. Unscrew silencer screw from valve housing.
– Be careful with the O-ring.
7. Unscrew screws from valve housing.
– Be careful with the O-rings.
8. Clean all parts and replace wearing parts in accordance with maintenance kit.
Install gas ballast valve
1. Install the gas ballast valve in reverse order.
2. Note screw torques:
● Screw (14) – torque:
6 Nm
.
● Screw (9) – torque:
3 Nm
.
● Screw (5) – torque:
3 Nm
.
7.5.2 Gas ballast valve – corrosive gas version
1
2
3
6
10
11/12
9
8
4
7
5
15
13/14
16
17
18
Fig. 25:
Remove and clean gas ballast valve (C version)
1
Screws
10
Screw
2
Circlip
11
Washer
3
Dosing screw
12
Plate spring
4
O-ring
13
Silencer screw
5
O-ring
14
O-ring
6
Flange
15
Screw
7
Hose nozzle
16
Valve housing
Maintenance
41/66
