TM-9-2815-220-34
ENGINE, WITH CONTAINER:TURBOSUPERCHARGED, DIESEL ,FUEL INJECTION ,90-DEGREE “V” TYPE, AIR - COOLED, 12-CYLINDER, ASSEMBLY; MODELS AVDS-1790-2C (2815-00-410-1203) AND AVDS-1790-2D (2815-00-410-1204)
TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE MANUAL
TM-9-2815-220-34 - Page 304 of 532
TM 9-2615±²20·34
Table
3-1 I. P
i
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t
o
n
S
,
PIston R±Ng8 and piS²ON ³´µS RE¶a·r
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Fig.
Ref±
PoInt of
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WeAr
CompN³NT
´oµ
lETt¶·
measu¸ement
of New ¹a¸T²
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5±7¹¿0
Ȧ7980
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u
±
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c
'
Ďď× oć ̺½tĐđ In cĒLInDe» boÐe,
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0¶200Ð
3
ö÷
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m¶æ½u»ED uÌ
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ºnÞh¶½
fēom boTtom of ßĒLºndeÐ
½ĔIĕT,
¾
d¶G»¶es to ¹i½toN
̺n
REfe To ÌæÂægēæÌh
3Í3Ñc
ćĖÂ ¶xėLænaøIon of sĘmBoęs.
³´µµ.
Repair
a.
Replace pistonS which are diStorted± cracked²
worn± abL'aded, or If oIl holeS In the rIng ³andS can-
not
be
cleared± or IF laNds are damaged or Broken.
´eplaCe PisTons That are Badly Bured± µ
1
Icked, or
Scratched¶ Remove mInor BUrs, nIckS or Sc·¸aTcheS
from pistOns wIth cROcus clOth dippED ±N dRy-CLEaN²
W¹thIn ºiMITs SpecI»Ied in repair standards (tab³e
¶¸¹º)»
Replace oI³ control ringS If drAIn ho¼es cannot
Be c³eared½
B
i
³g so´vEµt (P²¶·680, TYpE ¸¹). ºEp»acE ¼±s½O¾s
wH¿CÀ AÁÂ
nO¾
wi¾H¿À
lÁmi¾Â
s
p
EC
i
e
D
I
ÃE¼ÄÅÆ
s½Ä³DÄÆDs ÇÈÉb´E
3-11 ).
b¼
ÃISTon rIngS cannoT Be repaiÄed½ Rep³ace Åings
ÆhaT are ÇcÈÉfedÊ chipped± scraTched² or when they
Show siGns oÉ aBrasIon. Replace ËIngS when not
3½9¾ ¿2
ChaNge À
C²
Replace al³ piston pInS whIch aÌe cÌacKed, or
haVe deep nIcKs oÅ scraTCheS. RemoÍe MInor nIcks
or ScraTcheS wITh crocÎS cloTh dIpped In dryÏ
CÊEa˱¾G solVE³t (P-¶Ì6Í0Î TYpE ÏÐÑÒ ºEpÊacE
PIston ±
pi¾s tÓÔt aÕE Ëot
wiÐHIn
´ÖM×ts spECiFÖED jË REpaiR
s½a³DÔÁds
(TAblE ²³L ´
Ñ
±
³ÁÂ7Ã
µSS¶mB·y
A±
Ñheck MarÒinG on rInGÇ and insta³l The ÈÓper
ÔTapeÌed) coÕpresSIon Ö¿nG and the two inteÌ×
)
²
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