TM-9-2815-220-24

AVDS-1790 2CA, 2DA and 2DR Air-Cooled 12-Cylinder Diesel Engines

TECHNICAL MANUAL; UNIT, DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE MANUAL FOR AVDS-1790 2CA, 2DA and 2DR Air-Cooled 12-Cylinder Diesel Engines

  TM-9-2815-220-24 - Page 174 of 1563

TM 9-2815-220-24
CLEAN AIR SYSTEM TROUBLESHOOTING
0026 00
MALFUNCTION 1:
(Continued)
Abnormal operation of dust detector system (power plant warning lamp and dust detector
warning lamps ON, with pressure switch plunger(s) visible).
PROBABLE CAUSE
CORRECTIVE ACTION
f.
Defective wiring harness.
(1) Inspect electrical leads for broken wire or
damaged connectors.
Check for
continuity using a voltmeter.
Replace
defective cable assembly (WP 0067, Dust
Detector Harness Replacement).
g. Air cleaner access door seals damaged or
cam arm pins worn or broken.
(1) Repair or replace as necessary, refer to
pertinent vehicle technical manual.
h. Leak in engine induction system
(turbosupercharger compressor housing and
engine air induction manifold).
(1) Inspect engine turbosupercharger and
manifold system.
Clean, tighten, or
replace parts as necessary (WP 0037,
Induction Leak Test).
i.
Oil leakage from turbosupercharger
compressor side bearing and seal.
(1) Repair turbosupercharger as shown in
TM 9-2990-205-34&P, and TM 9-2990-
206-34&P, or replace turbosupercharger
(WP 0099 Turbosupercharger Assembly
Replacement).
(WP 0100 for 2DR)
j.
Ingestion of re-circulated smoke/fuel caused
by missing/broken air cleaner access door
seals or components.
(1) Repair or replace as needed.
k. Ingestion of re-circulated exhaust smoke
caused by missing/broken air cleaner access
door seals or components.
(1) Repair or replace as needed.
L. Air cleaner filter damaged or punctured due
to installation, disassembly, or foreign
objects.
(1) Service air cleaner; refer to pertinent
vehicle technical manual.
WP 0026 00-2


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