TM 5-3805-290-23-2
TORQUE LIMITS - CONTINUED
0207 00
HOSE CLAMPS - CONTINUED
Constant Torque Hose Clamps
427-B0183
Use a constant torque hose clamp instead of any worm drive band type clamp. Ensure constant torque hose clap is same
size as worm drive band type clamp. Because of extreme temperature changes, hose will heat set. Heat setting can cause worm
drive band type clamps to become loose. Loose hose clamps can result in leaks. There have been reports of component failures
that have been caused by loosened worm drive band type clamps. Constant torque hose clamp will help prevent these failures.
Use a torque wrench for proper installation of all constant torque hose clamps. There are two types of constant torque
hose clamps: Belleville washer (1) and T bolt and spring (4).
When constant torque hose clamp of Belleville washer (1) is assembled correctly, Belleville washers (2) are nearly col-
lapsed flat. The proper torque for screw (3) is based on diameter (B) of clamp. Refer to Table 20 for the correct torque.
Table 20.
Diameter (B)
Standard Torque
2 in. (Up to 50.8 mm)
65 5 lb-in. (7.3 0.6 Nm)
2 in. (Greater than 50.8 mm)
95 10 lb-in. (11 1 Nm)
The correct torque for constant torque hose clamp (T bolt and spring) (4) is 60 10 lb-in. (7 1 Nm).
END OF WORK PACKAGE
0207 00-22