WinGD X72DF - Page 281

PROCEDURE
1 If the seating faces of the housing (001, Figure 7-51) and of the valve spindle (002) only
have minimum damage, do as follows:
1.1 Use an applicable tool to manually grind the seating faces of the housing (001)
and of the valve spindle (002).
1.2 Make sure that you keep each radius to the values given.
2 If the seating faces of the housing (001) and of the valve spindle (002) have more than
minimum damage, do as follows:
2.1 Use an applicable machine tool to grind the seating faces of the housing (001)
and of the valve spindle (002).
2.2 Use an applicable tool to manually grind the seating faces of the housing (001)
and of the valve spindle (002) to get a good finish.
2.3 Make sure that you keep each radius to the values given.
Fig 7-51 Starting air valve - grind
001
I
I
002
00711
90°
91°
CLOSE UP
• None
X72DF
AA00-2728-00AAA-655A-A
Maintenance Manual Starting air valve - grind
Winterthur Gas & Diesel Ltd.
- 281 - Issue 002 2020-10