9* When operating the truck in dust laden atmospheres or under snow storm conditions, remove the engine air cleaner and the filter of the oil filler neck, disassemble them and wash their parts in a kerosene bath (see Process Chart No.l).Change oil in the cleaner and filter bodies. Wet the filtering elements (gauzes) with oil and let the oil flow down.Reassemble and reinstall the filter and cleaner.10. Check the attachment of the steering arm, condi¬tion of the cotter-pins, tightening of nuts and bolts of the steering rods.Loose attachments and noticeable plays in the joints of the steering rods are not tolerable.11. Check the air brake system for airtightndss.12. Check the condition of the springs, shock absor¬bers, propeller shafts and their flanges, as well as the torque arms of the 3HJM.31 truck.13. Check the presence and tightening of the wheel nuts, remove foreign objects stuck between dual tyres and in the tyre treads, check the air pressure in the tyres and bring it to normal. On the 3HJI-131 truck close the tyre „ valves.14. When operating with a trailer, check the condition of the pintle hook.15. Check the stowage of the winch cable, if it was used in the truck trip.16. When operating under conditions of heavy dirt, day- ly use grease yC-1 (press-solid oil), press-solid oil, grade "C", or solid oil, grade "C", to lubricate the steering rod ends and spring holts. Every other day lubricate the univer¬sal joints of the propeller shafts driving the axles with the oil used for the gear box.17. Eliminate the troubles detected en route and in the servicing, stow all the driver's tools in place (Appendix 1).
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