Maintenance
4325−1/A1
Winterthur Gas & Diesel Ltd.
1/ 6
Cleaning and Function Check
1. General 1..........................................................
2. Preparation 1.......................................................
3. Disassembly 2.....................................................
4. Servicing 2.........................................................
5. Assembly 4........................................................
6. Shut-off valve test 5................................................
6.1 Initial position 5..............................................
6.2 Test procedure 5..............................................
6.3 Automatic mode 6............................................
7. Completion 6.......................................................
1. General
Read the data in 0380−1 Maintenance Schedule for the applicable maintenance and
intervals on the shut-off valve for starting air (shut-off valve).
See the data in the Operation Manual 4003−2, Engine Control Diagram and 4003−9,
Pipe Diagram − Air Systems.
2. Preparation
1) On the starting air bottles, close the
stop valves 930−V03 and 930−V04.
2) Engage the turning gear.
3) Open the ball valves 30−8605_EO_6
and 30−8605_EO_7 to release the air
in the system.
4) Disconnect the electrical connections
from the pressure transmitter (5) and
the solenoid valves (1) and (8).
5) Disconnect the pipes (2) and (35) from
the shut-off valve.
6) Remove the eight screws (6) from the
flange (7).
7) Remove the eight screws (4) from the
flange (3).
8) Remove the shut-off valve (500kg) with
a suitable lifting device (e.g. four M24
eye bolts).
9) Do a check of the two gaskets that are
installed on the flanges (3) and (7). if
the gaskets are unserviceable, replace
them.
2015
Shut-off Valve for Starting Air
6
7
2
35
5
1
8
WCH03072
Fig. 1
4
3
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