(4)
Using an arbor press, apply pressure to swaging tool as specified in applicable manual, to form retainer ring.
Assembly
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Retainer Ring Installation (Typical)
Figure 502
Assembly
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5. Torque Requirements
Torque requirements for air, oil and fuel system components depend on the type of parts being fastened or tightened.
NOTE: The terms torquing and tightening are interchangeable in this task.
A. General Torque Requirements This general practice applies to torquing bolts and screws when flanges are metal-to-metal.
WARNING: SOLVENT VAPORS ARE TOXIC AND FLAMMABLE. DO NOT INHALE VAPORS. OBSERVE FIRE PRECAUTIONS.
CAUTION: WHEN FLANGES INCLUDE GASKET MATERIAL, INITIAL TORQUING OR TIGHTENING SHALL BE AT 60 PERCENT OF SPECIFIED TORQUE OR AS LISTED IN TABLES.
(1)
Clean threads using solvent (Federal Specification P-D-680, Type I) (SECTION VII) and remove corrosion if present.
(2)
Free threads of nicks and burrs.
(3)
Apply a light coat of anti-seize lubricant to fittings prior to assembly.
NOTE: Table 503 identifies Honeywell approved anti-seize lubricants for threaded fasteners and fittings, depending on the service temperature and the fluid contacted. Only anti-seize lubricants shown in Table 503 shall be used unless otherwise approved by Honeywell.
Table 503. Approved Anti-seize Lubricants
Air, Oil and Fuel Systems Fittings, Lines and Fasteners Fasteners: Bolts, Nuts, Studs, etc.
Up to 600 F (Up to 315 C) 600 to 1200 F (315 to 648 C) 1200 to 1800 F (648 to 982 C)
Lubricating Compound (Liqui-Moly, Thread NV) Oil (MIL-L-7808 or MIL-L-23699 ) Lubricant (Santovac 5) Lubricating Compound (Liqui-Moly, Thread) NV Lubricant (Fluoro-Glide) High Temperature Compound (Fel-Pro C5-A)* High Temperature Compound (Fel-Pro C5-A)* Never-Seez NS-165 Anti-seize Compound (Milk of Magnesia) Ease-Off 990 Never-Seez NS-165 Anti-seize Compound (Milk of Magnesia)
*Fel-Pro C5-A shall not be used in oil-wetted areas.
Assembly
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(4)
Position mating flanges in specified assembly position. Preposition bolts or studs before beginning the torquing sequence.
CAUTION: REFER TO APPLICABLE ASSEMBLY MANUAL, OR TO FIGURE 503 AS NEEDED, FOR PROPER, SPECIFIED TORQUING SEQUENCES.
(5)
For first sequence, apply approximately 25 to 50 percent of the maximum torque level uniformly for each bolt.
NOTE: For additional intermediate sequences apply torque levels proportionally between 25 to 50 percent of the maximum specified.
(6)
For final sequence, apply maximum allowed for the specific bolts being used.
*
Screws and bolts when flanges are metal-to-metal.
*
Flange with gasket material, initial torque at 60 percent of specified, or as in listed in tables.
Torquing Sequence Figure 503
Assembly
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B. Procedure - Preparing and Installing Fasteners (Standard Shop Practice)
WARNING: SOLVENT VAPORS ARE TOXIC AND FLAMMABLE. DO NOT INHALE VAPORS. OBSERVE FIRE PRECAUTIONS.
CAUTION: WHEN FLANGES INCLUDE GASKET MATERIAL, INITIAL TORQUE OR TIGHTENING SHALL BE AT 60 PERCENT OF SPECIFIED OR AS LISTED IN TABLES.
(1)
Clean threads using solvent (Federal Specification P-D-680, Type I) (SECTION VII) and remove corrosion if present.
(2)
Free threads of nicks and burrs.
(3)
Apply a light coating of anti-seize lubricant to fittings prior to assembly.
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