Yanmar 3YM30E Especificações descarregar pdf (Página 37)

4. MAINTENANCE AND INSPECTION

Apply the following tightening torque

to bolts having "7" on the head. (JIS

strength classification: 7T) Tighten

bolts with no "7" mark to 60% tighten-

ing torque. If the parts to be tightened

are made from light alloy aluminium,

tighten the bolts to 80% tightening

torque.

4.2 List of Periodic Inspection

Items

Daily and periodic inspections are impor-

tant to keep the engine in its best condi-

tion. The following is a summary of

inspection and servicing items by inspec-

tion interval. Periodic inspection intervals

should vary depending on the uses, loads,

fuels and lubricating oils used and han-

dling conditions, and are hard to establish

definitively. The following should be treat-

ed as a general standard only.

Section 4.3 gives a detailed explanation of

which parts must be inspected and the

procedure for doing so for each interval.

Schedule your own periodic inspection

plan according to the operational con-

ditions of your engine and inspect ev-

ery item. Neglect of periodic

inspections may lead to engine trou-

bles and shorten the life of the engine.

Inspection and servicing at 1000 hours

and thereafter require special knowl-

edge and techniques. Consult your

Yanmar dealer or distributor.

NOTICE

Bolt dia. x pitch

(mm)

M6x1.0 M8x1.25 M10x1.5 M12x1.75 M14x1.5 M16x1.5

Tightening

torque

(Nm) 11 ± 1 26 ± 3 50 ± 5 90 ± 10 140 ± 10 230 ± 10

(kgf-m) 1.1 ± 0.1 2.7 ± 0.3 5.1 ± 0.5 9.2 ± 1 14.3 ± 1 23.5 ± 1

(lb-ft) 8.0 ± 0.7 19 ± 2.1 37 ± 3.6 66 ± 7.2 103 ± 7.2 170 ± 7.2

NOTICE

1 2 ... 32 33 34 35 36 37 38 39 40 41 42 ... 55 56

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