1.7. Features of driving of the car in various road, weather and climatic conditions

Operation of the car and term of service in many respects depend on features of driving. At the correct driving the car moves with a high average speed and a small consumption of fuel when overcoming almost impassable sections of the road. On cars UAZ-3160, on horizontal sections of roads with a hard coating or under a bias we recommend to begin-31601,-31605 start-off with the place on the second transfer. In all other cases and on the car UAZ-31604 begin the movement on the first transfer. Switch transfers at the switched-off coupling.
To exclude breakthroughs in transmission, at the movement do not allow operation of the engine at the lowered rotation frequency for what in due time switch transfers of the transmission. Optimum values of frequency of rotation of a bent shaft of the engine (on a tachometer) at gear shifting, min.-1:
with the first on the second – not less than 1200;
with the second on the third – not less than 2000;
with the third on the fourth – not less than 2500;
with the fourth on the fifth – not less than 2700.
Switch transfers by smooth pressing the lever without breakthroughs. If before start-off from the place it is not possible to include the required transfer, then slightly release a coupling pedal, and then again squeeze out coupling and include transfer.
Synchronizers in a box of transfers allow to switch transfers without application of double switching off of coupling. However for the purpose of acceleration of process of switching of transfers and increase in term of service of synchronizers it is recommended to apply double switching off of coupling with throttling upon transition from the highest transfer to the lowest.
Include transfer of a backing in a box of transfers only after a full stop of the car. At the movement of the car you do not hold a leg on a coupling pedal as it leads to partial switching off of coupling and to probuksovke a disk. On the slippery road the car should be conducted evenly, with a small speed.
When braking by the engine completely release an accelerator pedal.
Slow down the car smoothly, gradually increasing pressing a brake pedal. Any braking increases wear of tires and raises a fuel consumption. When braking you do not bring a wheel to sliding as in this case the brake way and wear of tires increase. Except that, strong and sharp braking on the slippery road can cause a car drift.
At the movement of the car on off road terrain (sand, dirt, snow, etc.), the slippery road, on steep slopes (over 15 °) and to other heavy sections of the road do not allow an engine overload. In these conditions include the forward bridge, and before the movement in especially severe conditions – and the lowering transfer in a distributing box. Before inclusion of the forward bridge include forward wheels. Peredny Bridge is included at the movement of the car, and the lowering transfer in a distributing box – only at a full stop of the car.
 Overcoming abrupt rises and descents. The movement of the car along roads with abrupt rises and descents demands from the driver of special attention and speed of reaction. In advance define an angle of lead and include that transfer in a box of transfers which will provide necessary traction effort on wheels not to switch transfer on rise. Overcome abrupt rises on the lowering transfer in the transfer case and on the first transfer in a box of transfers, without stops and whenever possible without turns. Overcome short rises at a convenient entrance and rather equal surface of the road from dispersal without inclusion of the lowering transfer in a distributing box, on the second or third transfer in a box of transfers depending on the steepness of rise. If for any reasons rise cannot be overcome, then accept all measures of precaution and slowly go down, having included transfer of a backing. Go down gradually, without accelerating the car and without switching off coupling. When overcoming abrupt descents provide the measures ensuring safety of descent. Overcoming long descent (more than 50 m), previously estimate its tilt angle and include those transfers in a box of transfers and a distributing box on which the car would begin to overcome raising of the similar steepness. Use at the same time braking by the engine.

Prevention
It is forbidden to overcome descent with the switched-off transfer in a box of transfers, or in a distributing box, or with the switched-off coupling.

Do not allow the high frequency of rotation of a bent shaft on descent, brake periodically the car, reducing the speed of the movement.
 Overcoming ditches, roadside ditches and ditches is carried out at a small speed with the included forward bridge in the direction, perpendicular to a slope, taking into account the sizes of the car defining its passability. Do not move obstacles straight off if the front blow in wheels is possible.
Overcoming ditches and ditches, consider a possibility of slanting posting of the car and its jamming because of probuksovki wheels.
 The movement on dirty country and profilirovannym to roads on clay and chernozem soil. On clay and chernozem soil after a heavy rain the car at the movement can slide off sideways. Therefore be careful at the choice of the direction of the movement. In time of the movement choose rather horizontal sites of a way, whenever possible using already laid track – it prevents a side drift of the car. Special difficulties for driving can arise at the movement of the car on excessively wet profilirovannykh the roads having an abrupt profile and deep ditches. On such roads it is necessary to move on a crest carefully, with a small speed.
 Overcoming boggy sites is carried out on a straight line, without abrupt turns and stops. Begin the movement smoothly, without breakthroughs. Move with included the forward bridge and the lowering transfer in a distributing box, on such transfer in a box of transfers which would provide necessary traction effort on driving wheels without probuksovki. Turn smoothly, with a big radius, without reducing the speed of the movement of the car that will exclude a possibility of failure of the turf and probuksovki wheels. Avoid the movement on the trace laid ahead by the going car.
 When overcoming sandy sites move smoothly, without breakthroughs and stops, turn also smoothly and with a big radius. At the movement use perhaps higher transfers at the included forward bridge, overcome straight off also short sandy rises are mashed. Do not allow probuksovki wheels. Determine by Zablagovre-menno a road situation and include that transfer in a box of transfers which would provide the necessary traction effort on wheels.
 Carry out overcoming the ford with big care. The car is capable to overcome with a small speed the ford up to 500 mm in depth with solid soil. Before overcoming the ford carefully check a condition of a bottom, be convinced of lack of deep holes, large stones, fenny places, choose and check places of an entrance of the car to water and its exit from water.
Overcoming the ford, do not create a wave in front of the car, move on the first or second transfer in a box of transfers with included the forward bridge and the lowering transfer in a distributing box.
Avoid maneuvering and abrupt turns.
After overcoming the ford at per-howl opportunities, but no later than on the same day, check lack of water in oil in all units. If in oil water is found, replace oil in this unit. Determine availability of water in oil by change of its color. It is also necessary to grease with fresh lubricant before its expression all press-butterdishes of the chassis. At each exit of the car from the ford execute several incomplete switching off of coupling and braking for drying of frictional overlays of coupling and overlays of brake blocks.
At an engine stop in time of overcoming the ford it is possible to make two-tri attempts to launch the engine start-rom. If the engine is not launched, the car should be evacuated immediately from water any means. In case of penetration of water into units of the car it is not necessary to move own course after its extraction from water. Tow off the car for pro-conducting maintenance.
 The movement on a snow virgin soil can make the car with a height of snow cover up to 350 mm. Carry out turns as well as at the movement on the boggy site. At the movement on loose snow adhere to the same rules, as at the movement on sand.