DMWR-9-2815-220
AVDS-1790 ENGINE OVERHAUL STANDARD
DEPOT MAINTENANCE WORK REQUIREMENT
DMWR-9-2815-220 - Page 712 of 1422
- .·_±! ²³´
µ¶ :
.±²
•
DMWR
S2815220
5-88.l±
Reclamation.
EngIne coolINg fans (parT No.
8761242)
w±Th broken bLades
caN be r²C³aIMed by ´µG we³d±ng usINg the procedure oUTL±ned below¶
·efer To
O¸P
876²242 (³/6´µ¶·
¹º»¼
ºnLy We³d Fan blades thaT are broKen oN The o½Ter
2/3
of THe bLade
{WiT¾±N
3.16
±nches of The o¿Ter edge).
a.
»¾orougÀLy cLean The fanÁ
b¶
ÂsIng The ÃÄG Welding process ±n accordance W±Åh ƸÇ-S»DÈ1595, Weld Åhe
broÉeN blades WIth a
¸/¸6
or
3/32
x
36
x
4043
electrode¶
c.
ÊsIng a s˱Table hand gr±nder, gr±nd The Welded areas To draWIng spec±F±Ì
caTIons ÍÎÏG
876¸2¹2º»
d.
ÐeINspect aFter we³dIng to
MIL-¼-6866
wITÀ the FoLlowIng accepTance criTerIa:
½¸º Linear
Ind±cat±ons exceedIng
¸/¸6
±nch ±n lengTh are not acceptable.
½2¾
Ñraters exceedIng
1/8
IncÀ In d±ameTer and
1/8
±nch ±n depTÀ are NoT
acceptab
1
e¶
½3º
Òxcess±ve poros±Ty is noT accepTabÓe¶
½4º
Ônacceptable ±nd±caT±ons May be bLeNded oUT and rechecÕed È proVIded
b³UeÖr±nT d±×ens±ons are ØaÙnTa±ned¶
e¶
XÚray The we³d To ensUre ÛTs qualIty and INtegr±Ty.
ܶ
·eba³ance The fan and sp±n TesT for one ݱnÞTe aT
80¿0
·Pß afTer
rebaàancIng¶
ẻâ
QUalITy ÑonTrol WIlL ±nspect each Fin±shed part to ens¿re adherence
To TÀis proced½re¶
³/³³4
±
d.
j.
)
Back to Top
