Doosan DL450-3 상점 매뉴얼 - 페이지 18
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페이지 인쇄Replacing the XPI Injector Sleeves
The cylinder head must be removed when replacing the unit
injector sleeve. The valves do not need removing. The
illustrations show the cylinder head with valves removed to
demonstrate clearly the work described.
NOTE:
Guide and pilot tap on extension piece 99 397.
1.
Thread the lower part of the sleeve using the pilot tap and
guide from tool kit 99 574.
2.
Knock out the pilot tap and sleeve from underneath. Use a
100 mm long metal rod of diameter 9 mm.
3.
Degrease and check the contact surfaces of the sleeve
and cylinder head. Smooth off any burrs and irregularities
that may score the sleeve.
4.
Degrease the new injector sleeve and apply a thin film of
sealant 561 200 on the sleeve and cylinder head contact
surfaces.
5.
Press in the sleeve using the drift and guide from tool kit 99
574.
Replacing the Valve Bridge Guide Pins
The cylinder head must be removed when replacing the guide
pins.
1.
Remove Outlet valves and Intake valves.
Reference
Number
1
2
Engine
Page 38
Description
Outlet Valves
Intake Valves
Figure 26
Figure 27
2
Figure 28
FG020272
FG020273
1
FG020276
SP002541