MTD 464 Betriebsanleitung PDF herunterladen (Seite 177)

100

101

ARMY TM 9-6115-464-34

AIR FORCE TO 35C2-3-445-2

NAVY NAVFAC P-8-624-34

c. Cleaning, Inspection, and Repair.

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(2)

(3)

(4)

(5)

(6)

WARNING

Solvent, Dry Cleaning P-D-680, Type II is flammable and moderately toxic to skin,

eyes and respiratory tract. Eye and skin protection required. Good general ventilation

is normally adequate. Failure to observe this warning could result in personal injury or

death.

WARNING

Compressed air used for cleaning and drying purposes can create airborne particles

that may enter the eyes. Pressure shall not exceed 30 psig and use only with adequate

chip guards and chipping goggles. Failure to observe this warning could result in

personal injury or death.

Clean all parts in dry cleaning solvent (Federal Specification P–D-880) and dry with filtered

compressed air.

Clean all oil passages in crankshaft and connecting rods with a wire brush.

CAUTION

Use care to avoid damaging ring groove in pistons. Failure to observe this caution

could result in equipment damage.

Scrape carbon deposit from top and ring groove of piston.

Inspect crankshaft for cracks, nicks and scratches on bearing journals or other damage. Remove

minor nicks and scratches from bearing journals with crocus cloth. Clean to remove abrasive

residue.

Perform magnetic particle inspection of crankshaft in accordance with established procedures.

Remove minor nicks, burrs, and scratches from crankshaft bearing journals by polishing with crocus

cloth.

CAUTION

When regrinding crankshaft, it is imperative that the 5/32 inch radius from journal to

cheek be maintained. Crankshaft breakage may result from improper grinding of this

fillet. Failure to observe this caution could result in equipment damage.

Table 3-3. (UNDERSIZED BEARING JOURNALS)

Crankshaft journal diameter (In.)

Bearing

Size

Main Bearing Connecting rod

Standard

2.8734/2.8744 2.3730/2.3740

0.020 inch

2.8534/2.8544

2.3530/2.3540

0.040 inch

2.8334/2.8344 2.3330/2.3340

0.060 inch

2.8134/2.8144 2.3130/2.3140

3-123

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