Operation4003−1/A1
Winterthur Gas & Diesel Ltd.
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4.10.2 Starting Air Shut-off Valve
1) On the valve unit E, remove the check valve 35-115HA. Make sure that the three
O-rings do not fall out of the valve.
2) In the LDU−20, get the CONTROL LOC. Page, then select the button CTRL. TR.
to get control.
3) In the LDU−20, get the USER PARAMETERS page, then select the button AIR
RUN (see 4002−2, paragraph 3.10 User parameters) and make sure that:
D The solenoid valves ZV7013C and ZV7014C are energized (use a
screwdriver or a magnet tester).
D In the valve unit E, control air comes out at each outer bore at the check
valve position.
4) Make sure that:
D The shut-off valve 30-4325_E0_1 is manually closed.
D No shut-down signals are released.
D The turning gear is disengaged.
5) In the LDU−20, get the MAIN page.
6) Select the button ON/OFF to set the auxiliary blowers to off.
7) In the LDU−20 MAIN page, select the button START AHD. Make sure that
Auxiliary Blowers Stopped is shown. No start command is released.
8) Select the button START AST and do steps 3 to 7 again.
9) Select the button ON/OFF to set the auxiliary blowers to on then:
a) Select START AHD and do steps 3 to 7 again.
b) Select START AST. and do steps 3 to 7 again.
The auxiliary blowers start and in the valve unit E, control air comes out of each outer
bore at the check valve position.
10) Make sure that the O-rings are in position in the check valve 35-115HA.
11) Install the check valve 35-115HA in the valve unit E.
2015-03
Engine Control
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