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 183 of 1563
TM 9-2815-220-24
STANDARD MAINTENANCE INSTRUCTIONS
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HANDLING TECHNIQUES
Avoid damage to engine and container parts and subassemblies during disassembly, cleaning,
inspection, repair, and assembly procedures.
Nicks, scratches, and dents caused by careless
handling can cause oil leakage or improper functionality leading to premature engine failure.
Replace or repair all defective parts.
When servicing the engine, care must be used to protect
it against contamination.
Dirt, small tools, and parts could fall into access holes and cavities.
This could result in an engine failure.
When an engine is not being serviced, protect it from
contamination.
TORQUE
When a special torque value is required it is indicated in the work package relating to the part.
Work Package 0174 is a listing of special and standard torque values.
CLEANING
Standard cleaning instructions in this work package cover:
Bearings
Castings, forgings, and machined surfaces
Electrical cables and flexible hoses
Oil passages and screens
Oil seals and flexible hoses
Painted parts
Shafts and spindles
Threaded parts and inserts
Procedures for cleaning will be the same for most engine and container parts.
Standard
cleaning instructions are detailed here.
Special cleaning procedures are covered in the
procedural work package relating to the specific part.
The importance of cleaning must be thoroughly understood by maintenance personnel.
Great
care and conscientious effort are required in all cleaning operations.
Foreign matter such as
dirt and metal chips in the engine could damage parts, cause malfunctions, and interfere with
accurate measurements.
A dirty procedure can result in:
Cylinder scuffing or scratching
High oil consumption
Bearing destruction
Component failures directly attributed to the entrance of dirt
Maintain rigid standards during all phases of the cleaning operation.
The following general
instructions apply to all cleaning operations.
WP 0028 00-3
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