Perkins 2800 - Torque Figures for Constant Torque Hose Clamps; Torque Figures for Standard Hose Clamps of the Worm Drive Band Type

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Workshop Manual, TSD3450E, Issue 1 25
2800
Torque figures for standard hose clamps of the worm drive band type
Torque figures for constant torque hose clamps
Use a torque wrench for the correct installation of a constant torque hose clamp. For a constant torque hose
clamp to be installed correctly, these conditions must exist:
The screw tip (D1) must extend by 6,35 mm (0.250 in) beyond the housing (D2).
The belleville washers must be collapsed almost flat after the screw (D3) has been tightened to a torque of
11 +/- 1 Nm (98 +/- 9 lb in).
Width of clamp
Torque figure for initial
installation on a new hose
7,9 mm (0.31 in) 0,9 +/- 0,2 Nm (8 +/- 2 lbf in)
13,5 mm (0.53 in) 4,5 +/- 0,5 Nm (40 +/- 4 lbf in)
15,9 mm (0.63 in) 7,5 +/- 0,5 Nm (65 +/- 4 lbf in)
Width of clamp Torque figure for used clamp
7,9 mm (0.31 in) 0,7 +/- 0,2 Nm (6 +/- 2 lbf in)
13,5 mm (0.53 in) 3,0 +/- 0,5 Nm (27 +/- 4 lbf in)
15,9 mm (0.63 in) 4,5 +/- 0,5 Nm (40 +/- 4 lbf in)