Winterthur Gas X40-B, Руководство по обслуживанию

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Maintenance
2728 − 1/A1
Winterthur Gas & Diesel Ltd.
1/ 3
Starting Air Valve
Removal, Disassemble, Grinding, Assemble, Installation
1. General 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2. Removal 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3. Disassemble 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4. Grinding 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5. Assemble 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6. Installation 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1. General
Should functional difficulties occur with the starting air valves when starting, or should a
starting air pipe near to the connection become noticeably hotter in operation than on
the neighbouring cylinders, then the starting air valve must be dismantled and
reconditioned at the very next opportunity.
If no such difficulties occur it is recommended to dismantle yearly at random one starting
air valve for a thorough check and to overhaul the other starting air valves in frequencies
determined by such checking.
Periodical venting of the starting air manifold under higher pressure must be
provided as mentioned in the Operating Manual 0320 − 1. In addition, regular
checks must be carried out to make sure, that nut (17, Fig. 1 ) on solenoid (13) is
tight (see also 0380 − 1 Maintenance Schedule ).
2. Removal
1) Remove the control air pipe from the starting air valve and disconnect the plug from
3/2-way solenoid valve (13, Fig. 1 ).
2) Loosen bolts (8) and remove the complete starting air valve from cylinder cover (1).
Take care that during lifting, the starting air valve does not get jammed, whereby
pipe (14) risks being damaged.
3) Remove the pipe.
Note: When the removal is carried out with the cylinder cover fitted on the engine,
the vacated opening must be immediately covered by suitable means to
prevent the possibility of foreign particles entering the combustion space.
3. Disassemble
1) For further dismantling clamp the starting air valve on the milled faces below the
valve spindle head (spanner purchase) in a vice.
2) Loosen Allen screws (9) and remove cover (1) together with fitted 3/2-way solenoid
valve (13).
3) Loosen self-locking nut (10) with a socket spanner, and remove it.
4) Pull piston (5) and compression spring (6) from housing (2).
5) Lift housing up over valve spindle (4).
2016