DRAFT
TM 5-4210-249-13&P-2
0187
Fastener Tightening Sequence Procedure.
g.
Installation Torque.
1.
NOTE
If a component has a critical tightening sequence, it will be illustrated in that particular
work package; otherwise, use the general sequence charts provided in Figure 1.
(a)
Tighten nuts twice in a crisscross pattern using a torque wrench. The first time nut is torqued,
apply approximately 75% of final torque value.
(b)
Repeat sequence a second time until 100% of final torque value has been obtained for each nut.
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TFFT04156
Figure 1.
General Tightening Sequences.
Check Torque.
2.
NOTE
When one or more screws are loose, check torque for all bolts on the component.
Tighten nuts in a crisscross pattern using a torque wrench. Apply 100% of final torque value.
Pipe Thread Tightening Procedures.
h.
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WARNING
ICON 30, 44, 27
Adhesives, solvents, and sealing compounds can burn easily, can give off harmful
vapors, and are harmful to skin and clothing. To avoid injury or death, keep away
from open fire and use in well-ventilated area. If adhesive, solvent, or sealing
compound gets on skin or clothing, wash immediately with soap and water.
CAUTION
Use sealing compound sparingly and only on male threads. Do not apply
compound on first two threads to avoid contamination of system from compound.
Do not apply compound to hose connections or fittings with preformed packings.
Damage to equipment may result.
1.
Coat threads of male fitting with sealing compound, sealant, or adhesive as indicated in each work
package.
