Yanmar BY series Dokumentacja Pobierz pdf (Strona 121)

SPECIFICATIONS

114 BY Series Operation Manual

Tightening Fasteners

Use the correct amount of torque when

you tighten fasteners on the machine.

Applying excessive torque may damage

the fastener or component and not enough

torque may cause a leak or component

failure.

Standard Torque Values

Hexagon Bolts and Nuts

Hose Clamps

Note: Reuse and retightening is

prohibited for all hose clamps.

Always install new hose clamps.

Nominal Diameter

Grade (Lubricated)

8.8 or 8 10.9 or 10 12.9 or 12

M4 2.7 N·m (24 in.-lb) 3.88 N·m (34.3 in.-lb) 4.6 N·m (41 in.-lb)

M5 5.5 N·m (48.6 in.-lb) 8 N·m (71 in.-lb) 9.5 N·m (84 in.-lb)

M6 9.5 N·m (84 in.-lb) 13 N·m (115 in.-lb) 16 N·m (142 in.-lb)

M7 15 N·m (133 in.-lb) 22 N·m (195 in.-lb) 26 N·m (230 in.-lb)

M8 23 N·m (204 in.-lb) 32 N·m (24 ft-lb) 39 N·m (29 ft-lb)

M8 x 1 25 N·m (221 in.-lb) 35 N·m (26 ft-lb) 42 N·m (31 ft-lb)

M10 46 N·m (34 ft-lb) 64 N·m (47 ft-lb) 77 N·m (57 ft-lb)

M10 x 1.25 49 N·m (36 ft-lb) 68 N·m (50 ft-lb) 82 N·m (60 ft-lb)

M12 80 N·m (59 ft-lb) 110 N·m (81 ft-lb) 135 N·m (100 ft-lb)

M12 x 1.5 88 N·m (65 ft-lb) 125 N·m (92 ft-lb) 150 N·m (111 ft-lb)

Size Specification

5mm Hex Head

1.0 - 1.5 N·m

(8.9 - 13 in.-lb)

6mm Hex Head

2.5 - 3.5 N·m

(22 - 31 in.-lb)

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Yanmar BY series Dokumentacja Strona 121