(2)
Provide proper coverings or supports to protect curvic couplings, shafts, gears, studs, and projecting parts from damage. If tapping is required to separate parts, use a cellulose-tipped hammer or a fiber or rawhide mallet. If clamping is necessary, clamp parts in vises that have micarta jaws or equivalent.
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(3)
After disassembly, spray steel parts with lubricant specified for the unit. Cover all parts with clean paper or suitable coverings unless cleaning and inspection is to be accomplished immediately.
CAUTION: USE PLASTIC CAPS OR PLUGS ON ALL FUEL, PNEUMATIC, OR LUBRICATION SYSTEM COMPONENTS. DO NOT USE CLOTH, TAPE OR ALUMINUM CAPS OR PLUGS.
(4)
Seal ports, bores, and passages of assemblies or components with tape or suitable closures between overhaul procedures. Cover large openings with cardboard taped in place.
(5)
During each stage of disassembly:
.
Examine all parts and assemblies for signs of scoring, burning, or other defects.
.
Note physical conditions which will not be apparent after cleaning.
.
Tag involved parts before they are cleaned and laid out for detail inspection.
.
Check additionally for evidence of damage caused by improper procedures at previous overhauls. Report such damage in accordance with current practice.
(6)
Record manner and location of lockwiring for duplication during reassembly.
(7)
Note manner and location of attaching parts on tube assemblies and wiring harness assemblies for duplication during reassembly.
(8)
Discard all removed packings, gaskets, and seals at time of disassembly.
(9)
Discard all removed self-locking nuts at time of disassembly if no minimum criteria for re-use is included in manual covering equipment.
(10)
Before discarding any bearing refer to applicable unit overhaul manual, inspection/repair manual, or repair manual for accept or reject criteria.
F. Disassemble Bearings
NOTE: Refer to applicable manual for removal and/or disassembly procedure for bearings. Specified tooling shall be used during bearing removal to prevent cocking, misalignments, and exerting force on rolling elements.
(1)
Observe bearing handling procedures.
(2)
Immediately place bearings in individual sealed plastic bags (SECTION VII) to minimize handling of bearings, and avoid direct contact with bare hands. Do not drop bearings.
(3)
Keep components (races, rollers, cages, etc.) of each bearing separate from components of another bearing. Reassembled bearings must contain only the original components of that bearing.
(4)
Immediately clean bearings in accordance with SECTION II.
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SECTION II – CLEANING
TABLE OF CONTENTS
SECTION PAGE
1. Standard Cleaning Practices ....................................................................................................... 201
A. General..................................................................................................................................201
2. Preparation of Cleaning Solutions ............................................................................................... 202
A. Method No. 202A: Alkaline Cleaning Solutions Mixing Instructions..................................... 202
B. Method No. 202B: Chromate Conversion Coating Mixing Instructions................................ 203
C. Method No. 202C: Chromic-nitric Pickle Mixing Instructions ............................................... 203
D. Method No. 202D: De-oxidizer Mixing Instructions..............................................................203 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：标准施工手册 STANDARD PRACTICES MANUAL 20-00-02/70-00-01(18)
