Operation Manual

Job Card No.:
Engine:
Filing No.:
Starting Pilot Air Distributor
Inspection
0178-30-10 1639
© 0585
10.02.01 Page 1 of 2
S/BVM 628
The control disc (9) - Fig. 2 - contacts the
distributor ring (13) only during the starting
procedure. Ring (10) seals off the air passage
to the crankcase. At the end of the starting
procedure, control disc (9) runs free.
Inspection
Remove distributor ring (13) and control disc (9) for
inspection.
Job
Removing Control Disc (9)
Undo coupling (6) - Fig. 1 -. Unscrew hex. bolts (62)
and take off nest of tubes (11). Pull off distributor ring
(13) - Fig. 2 - and withdraw control disc (9) along with
ring (10).
Clean all components.
Check sliding surfaces of distributor ring (13) and
control disc (9). If the surfaces are damaged, renew
components. Check ring 10, renew if necessary.
Refitting Control Disc (9)
Install control disc (9) along with ring (10) to that the
punch mark (16) coincides with the hole (17) in shaft
(1) - see Fig. 3 -.
Check control disc (9) and ring (10) for easy move-
ment. Check O-seal (14) in distributor ring (13), rene-
wing if necessary. Place distributor ring (13) in posi-
tion so that punch mark (18) on cover (4) coincides
with notch (19) in distributor ring (13) - see Fig. 3 -.
Secure nest of tubes (11) - Fig. 1 - by means of hex.
bolts (62). Connect coupling (6).
Removing and Refitting Starting Pilot Air Distri-
butor
Removing Starting Pilot Air Distributor
Undo coupling (6). Unscrew hex. bolts (62) and take
off nest of tubes (11). Pull off distributor ring (13) -
Fig. 2 - and withdraw control disc (9) along with ring
(10). Screw out banjo bolt (57) and remove pipe (5).
Undo hex. bolts (8). Take off cover (4) along with
gasket (7).
Shaft (1) is quite difficult to withdraw, owing to
the lock pin, and should therefore be dismant-
led only when really essential.
Fig. 2
Fig. 1
Job Card:
- 02.00.01
Tools:
- Standard tools
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