Clean the breathers. Where leaks are detected, check the oil level and top up, if needed, with the T-14B automo¬tive transmission oil (with an additive), MPT7-12H No,54-65 or TAXJ-15B, LiFTT-58-1-185-65 (a substitute is oil TAn-15, GOST 8412-57).49. Check the oil level in the hydraulic steering booster tank (Pig,19) and top up,if needed,with oil,grade P, T7-58-1-110-67 used for the truck hydraulic systems. A sub¬stitute is turbine oil 22, GOST 52-53 or industrial oil, grade 20 (spindle oil 5), GOST 1707-51.When checking the oil level the front wheels should be in the straight-ahead position.The oil is topped up (with the engine idling) until it appears over the strainer of the filling filter.50. Remove, wash and fill the engine air cleaners with fresh oil (Fig.20), following Process Chart No.l. The same is done to the filter of the oil filling neck.Auxiliary Operations Per-formed when the Truck is Used in Sandy Desert LocalitiesThe servicing operations involving disassembly of some truck units under field conditions should be performed in¬doors or in tents.1. Drain from 1 to 2 litres of sediment from the fuel tanks.2. Remove the filtering element of the fuel filter- settler (Pig.10) and wash it with gasoline. Before the fil-tering element is reinstalled, clean the internal surfaces of the bowl of dirt.5. On the 3HJI-151 truck, check the functioning of the air valves (Fig.22) of the fuel tanks and wash them, if needed.Using compressed air, clean the valve pipe and the pipe connecting the fuel tanks.4. Remove the bowl-settler of the fine fuel filter (Pig.21) and wash the filtering element with gasoline.5. Remove the gauze fuel filter of the carburettor and wash it with gasoline.
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