VEHICLE APPEARANCE.

(3) After the parts are cleaned, rinse and dry

usually a visual, hand-feel, pry-bar, wrench, or

them thoroughly. Apply a light grade of oil to all polished

screwdriver inspection for looseness in the unit. This

metal surfaces to prevent rusting.

inspection will include any brackets, lockwashers,

(4) Before installing new parts, remove any

locknuts, locking wires, and cotter pins as well as any

preservative materials, such as rust-preventive

connecting tubes, hoses, or wires.

compound, protective grease, etc.; prepare parts as

(d) Excessively worn is understood to mean

required (oil seals, etc.); and for those parts requiring

worn beyond serviceable limits, or likely to fail if not

lubrication, apply the lubricant prescribed in the

replaced before the next scheduled inspection.

lubrication order.

Excessive wear of mating parts or linkage connections is

d. General precautions in cleaning.

usually evidenced by too much play (lash or lost motion).

(1) Dry-cleaning solvent and volatile mineral

It includes illegibility as applied to markings and data

spirits are inflammable and should not be used near an

plates, and printed matter.

open flame. Fire extinguishers should be provided when

c. General Cleaning.

Any special cleaning

these materials are used. Use only in well ventilated

instructions required for specific mechanism or parts are

places.

contained in the pertinent section. General cleaning

(2) These cleaners evaporate quickly and

instructions are shown in (1) through (4) below.

have a drying effect on the skin. If used without gloves,

(1) Use dry-cleaning solvent or volatile

they may cause cracks in the skin and, in the case of

mineral spirits to clean or wash grease or oil from all

some individuals, a mild irritation or inflammation.

parts of the truck.

(3) Avoid getting petroleum products, such as

(2) A solution of one part grease-cleaning

dry-cleaning solvent, volatile mineral spirits, engine fuels,

compound to four parts of dry-cleaning solvent or volatile

or lubricants on rubber parts as they will deteriorate the

mineral spirits may be used for dissolving grease and oil

rubber.

from chassis, mast and other parts. Use cold water to

(4) The use of diesel fuel oil, gasoline, or

rinse off any solution which remains after cleaning.

benzene (benzol) for cleaning is prohibited.

Maintenance

After

Semi

5-8. VEHICLE APPEARANCE.

Reference

Use

Daily

Weekly

Quarterly

Annual

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Inspect entire truck. Check panels and covers for proper

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closing.

Lube Chart

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Inspect body and chassis for missing or damaged parts.

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Lube Chart

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5-9. ENGINE ASSEMBLY.

542

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Check oil level in crankcase.

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Check oil pressure reading.

Inspect oil pan for leakage.

Inspect oil filter element. Replace as necessary.

Check tightness of cylinder head nuts.

Check tightness of manifold nuts.

Test engine compression.