TM-9-2815-200-35
ENGINE, WITH CONTAINER:TURBOSUPERCHARGED, DIESEL ,FUEL INJECTION ,90-DEGREE “V” TYPE, AIR - COOLED ,12 - CYLINDER , ASSEMBLY ;MODELS AVDS-1790-2M (2815-856-4996), AVDS-1790-2A AND AVDS-1790-2AM (2815-856-9005)
TECHNICAL MANUAL; DIRECT SUPPORT, GENERAL SUPPORT AND DEPOT MAINTENANCE MANUAL INCLUDING REPAIR PARTS AND SPECIAL TOOLS LISTS
TM-9-2815-200-35 - Page 507 of 779
Para 6-65b
Para 6-65b
Section XVI. OVERHAUL OF CRANKCASE BREATHER TUBES, FIR E
EXTINGUISHER TUBE, INJECTION PUMP ELECTRICAL LEAD ,
AND
MANIFOLD
HEATER
FUEL
TUBES,
FILTER
AND
ELECTRICAL COMPONENT S
6-63. Genera l
Specific instructions on disassembly, cleaning ,
This section covers the overhaul of the crank -
inspection, repair, and assembly accompany th e
case breather tubes, fire extinguisher tube, in -
overhaul operations. Refer to the following table
jection pump electrical lead, and manfiold heate r
(table 6-45) for applicable illustrations an d
fuel tubes, filter, and electrical components .
instructions for overhaul operations .
Table 6-45. Crankcase Breather Tubes, Fire Extinguisher
-
Tube,
Injection Pump Electrical Lead, and Manifold Heater Fuel Tubes,
Filter, and Electrical Components
Component
Disassembly
Cleaning
Inspection
Repair
Crankcase Breather
Tubes, Fire Ex-
tinguisher Tube,
and Pump Eletri-
cal Lead
Manifold Heater
Fuel Tubes, Fil-
ter, and Electri-
cal Components
Para 6-64a
Para 6-65a
Fig. 6-251
Para 6-2
Para 6-64b
6-64. Overhaul of Crankcase Breathe r
Tubes, Fire Extinguisher Tube ,
and
EIectrical
Lead
a. Disassembly.
The crankcase breather tubes ,
fire extinguisher tube, and electrical lead were
disassembled during engine disassembly ,
Chapter 5 .
b. Cleaning, Inspection, and Repair.
Refe r
to paragraphs 6-2 through 6-4 .
(1)
Breather
tubes
and
tee.
Inspect
breather tubes (10, 11, 30, 36, and 43, fig. B-11)
and breather tube tee (16) for cracked, bent, o r
dented condition and for warping of tub e
mounting surface. Replace when cracked o r
badly dented or bent, or when mounting surface s
are badly warped. Straighten bent tubes to a s
near original shape as possible. Remove mino r
warpage of mounting surfaces by rubbing acros s
abrasive cloth held tightly on a surface plate o r
similar flat surface .
(2)
Fire extinguisher tube.
Inspect fir e
extinguisher tube (24, fig. B-11) for cracked ,
Para 6-64b
Para 6-65b
Assembly
Para 6-64c
Para 6-65c
Fig. 6-251
bent, or dented condition. Check spray holes in
tube for obstructions and corrosion. Inspect tube
fittings (25 and 26) for cracks and for stripped
or damaged threads. Pressure check tube t o
withstand a maximum working pressure of 2 5
psi. Replace tube when cracked, badly bent, o r
when spray holes cannot be cleaned. Replac e
fittings when cracked or when threads ar e
damaged .
(3)
Pump electrical lead.
Inspect pum p
electrical lead (51, fig. B-11) for cracked, frayed,
or deteriorated insulation. Inspect lead fo r
continuity with a low voltage circuit tester .
Inspect electrical connectors for stripped o r
damaged threads. Replace electrical lead whe n
insulation is cracked or broken, connecto r
threads are damaged, or when low voltage teste r
indicates a failure ,
c. Assembly.
The crankcase breather tubes ,
fire extinguisher tube, and electrical lead ar e
assembled during engine assembly, Chapter 7 .
6-213
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