Maintenance
4325−1/A1
Winterthur Gas & Diesel Ltd.
1/ 6
Clean and Function Check
1. General 1..........................................................
2. Preparation 1.......................................................
3. Disassemble 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 necessary maintenance and
intervals on the shut−off valve for starting air (shut-off valve).
Read the data in the Operation Manual 4003−2, Engine Control Diagram and 4003−9,
Pipe Diagram − Air Systems.
2. Preparation
1) Engage the turning gear.
2) On the starting air bottles 9.01, close
the stop valves.
3) Open the vent valves 2.21 and 2.27 to
release the air in the system.
4) Disconnect the electrical connections
from the pressure switch (7) and the
solenoid valves (1).
5) Remove the pipe (3, Fig. 1).
6) Remove the pipe (4).
7) Remove the pipe (5).
8) Remove the eight screws (6) from the
flange of the inlet pipe (not shown).
9) Remove the eight screws from the
flange of the outlet pipe (not shown).
10) Remove the shut-off valve from the
engine.
11) Do a check of the gaskets installed on
the flanges. If the gaskets are
unserviceable, replace them.
2016
Starting Air Shut-off Valve
WCH03534
1
2
3
4
I
I
Fig. 1
1
1
4
6
3
AO
7
5
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