30 300598802_002_C0 - 10/2016 - © Leybold
Maintenance
5.7 Maintaining the Gas Ballast Valve
D16/30T:
Tools required:
Allen key 4 mm
Allen key 5 mm
Unscrew the two hex head screws (10/13);
Remove the gas ballast valve body (10/11);
Take off the gasket (10/10) and O-ring (10/9);
Clean the parts and check that they are in perfect condition; If not, replace
them.
Unscrew the four hex head screws (10/7);
Remove the oil casing (10/8);
Pull out the gas ballast valve stem (10/1);
Take of the O-ring (10/2);
Clean the parts and check that it is in perfect condition; If not, replace them.
Pull out the gas ballast valve support ring (10/5);
Take of the spring (10/4) and gas ballast valve (10/3);
Clean the parts and check that they are in perfect condition; If not, replace
them.
Remount In the reverse order.
Ordering number of Gas Ballast Valve kit can be found in spare parts list.
1 Gas ballast valve stem
2 O-ring
3 Gas ballast valve
4 Spring
5 Gas ballast valve support ring
6 Washer
7 Screw
8 Oil casing
9 O-ring
10 Gasket
11 Gas ballast valve body
12 Washer
13 Screw
14 Gas ballast knob
Fig. 10 D16/30T Gas ballast valve disassembled
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