TM 5-2350-378-23&P
0008
APRON WILL NOT RAISE - Continued
d.
Using LINE UP or LINE DOWN button (Figure 4, Item 3), select V1 on the HDC display
(Figure 4, Item 2).
1
2
3
4
T00607HDC
Figure 4. Hydraulic Diagnostic Center (HDC) Control Box.
e.
Close V1 on the HDC display (Figure 4, Item 2) by selecting the CHANGE POSITION button
(Figure 4, Item 4) on the HDC control box. Select V17 on the HDC display (Figure 4, Item 2).
f.
Close V17 on the HDC display (Figure 4, Item 2) by selecting the CHANGE POSITION button
(Figure 4, Item 4) on the HDC control box.
g.
Have assistant start engine and hold APRON CONTROL lever to UP position.
h.
Loosen jam nut (Figure 5, Item 1) on apron control pressure relief valve (Figure 5, Item 3).