How much does a transfer case weigh in the Urals?

Engine

The Ural 4320, whose technical characteristics can surprise, is equipped with a powerful V-shaped engine running on diesel fuel. Power units are produced at the Yaroslavl Motor Plant. In the Ural 4320 car, engine technical characteristics vary depending on the engine modification:

YaM3-236NE2. Volume 11.15 l, power – 230 l. s., maximum torque – 882 Nm. Number of cylinders – 6
YAM3-236BE. 6-cylinder 11.15-liter engine with 250 hp. With. with a torque of 1078 Nm
YaM3-238. The engine capacity is 14.86 liters and the maximum torque is 882 Nm. 8-cylinder 240-horsepower power unit

Upon individual order, the manufacturing plant is ready to install a power unit of the YaMZ-7601 modification with a rated power of 300 hp. With.

Specifications

The curb weight of the Ural 4320 is 8050 kilograms, while the total weight of the vehicle reaches 15205 kilograms. The vehicle is capable of transporting cargo weighing up to 6855 kilograms. The weight of the towed trailer reaches 11,500 kilograms.

Dimensional characteristics:

Length/width/height – 7366/2500/2870 mm
Wheelbase - 3525 mm
Ground clearance – 400 mm
Rear track – 2000 mm
Front track -2000 mm
Minimum turning radius 11400 mm

In the Ural 4320 vehicle, the length of the body and overall dimensions allow it to accommodate a company of soldiers. The load distribution for the front and rear axles is 4550 and 3500 kg respectively. The truck body allows for the simultaneous transportation of 27-34 passengers. When looking at the technical characteristics of the Ural 4320, it is unacceptable to ignore the maximum speed. For the model under consideration, the upper speed limit is 85 km/h.

For a Ural 4320 truck, fuel consumption per 100 km is in the range of 31-42 liters (depending on the speed limit). The design of the Ural 4320 car includes 2 fuel tanks with a total capacity of 360 liters (the main tank holds 300 liters, the additional tank holds 60 liters). It is worth noting that not all modifications of the series are equipped with an additional fuel tank. The maximum climb that the machine can overcome is 58%.

Spare parts for Ural, Kraz, MAZ, Kamaz trucks. Engine parts YaMZ-236, YaMZ-238

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Gearbox for Ural-4320, Ural-5557 vehicles

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Until 1994, Kamaz-141 gearboxes (for the Kamaz-740 engine) were installed on Ural-4320 and 5557 vehicles. Since 1994, Ural-4320 vehicles and their modifications have been equipped with YaMZ-236 engines with a YaMZ-236 gearbox or with a YaMZ-2361 gearbox (a modernized version of the YaMZ-236 gearbox). Gearbox Ural-4320, 5557 (YaMZ-236) Gearbox YaMZ-236 for Ural-4320, 5557 vehicles - mechanical, three-way, five-speed (five gears for forward movement and one for reverse) with synchronizers for 2–3 and 4–5 transmissions Modification of the gearbox - YaMZ-236U. Gear ratios of the gearbox Ural-4320, 5557 YaMZ-236 U Transmission Gear ratios 1 5.26 2 2.90 3 1.52 4 1.00 5 0.664 Reverse 5.48

Rice. 13. Gearbox of Ural-4320, 5557 (YaMZ-236) vehicles 1– clutch release clutch; 2–primary shaft; 3, 15 – bearing caps; 4–clutch housing; 5, 10 – synchronizers; 7 – retainer ball; 8, 22–fifth gear gears; 9, 21–third gear gears; 11, 19 – second gear gears; 12–first gear and reverse gear; 13–top cover; 14–secondary shaft; 16–flange; 17 – intermediate shaft with first gear gear; 18–gearbox housing; 20–oil pump intake with magnet; 23– power take-off gear; 24–intermediate shaft drive gear; 25–oil pump; 26–axis of the reverse gear block; 27–reverse gear block; 28–speedometer drive gear. Primary shaft 2 (Fig. 13) of the Ural-4320, 5557 gearbox is mounted on two ball bearings. The front bearing is pressed into the engine crankshaft bore. During assembly, the bearing cavity is filled with Litol-24 lubricant and sealed with a cuff. The rear bearing is secured against axial movements in the front wall of the gearbox housing and the bearing cover using a retaining ring. The front end of the secondary shaft 14 rests on a roller bearing placed in the socket of the primary shaft. The rear end of the secondary shaft of the Ural-4320, 5557 gearbox rests on a ball bearing secured by a retaining ring in the crankcase wall and cover. A flange 16 is installed on the splines of the rear end of the secondary shaft for fastening the propeller shaft of the vehicle. The intermediate shaft 17 is mounted on two roller bearings. The front end of the intermediate shaft of the Ural-4320, 5557 gearbox has a groove for driving the oil pump. The reverse gear block 27 rotates on two roller bearings mounted on a fixed axis 26. All gears of the Ural-4320, 5557 gearbox have spiral teeth, except for the spur gears of the first gear, the reverse gear and the power take-off gear. The second, third and fifth gears and a pair of intermediate shaft drive gears are in constant mesh. The gears of the second, third and fifth gears of the secondary shaft are mounted on steel plain bearings with a special configuration, coating and impregnation. Shockless engagement of the second, third, fourth and fifth gears is ensured by two synchronizers 6 and 10. The Ural-4320, 5557 inertial type gearbox synchronizer allows the gear coupling of the carriage to engage with the gear coupling of the gear only when the angular velocities of rotation of the gear and shaft are equalized. The speed equation is carried out using a friction pair - a synchronizer cone ring and a cone on the gear. Engaging first gear and reverse gear is carried out by moving gear 12 along the splines of the secondary shaft until it fully engages with the corresponding gear. The top cover of the Ural-4320, 5557 box contains a three-way gear shift mechanism. On the rods of the Ural-4320, 5557 gear shift mechanism, forks are attached, which, when the rods move, move the synchronizer carriages or the first gear and reverse gear. The rods are held in the desired position by ball retainers 7. To protect against accidental engagement of two gears at the same time, the Ural-4320, 5557 gearbox has a locking device (type A–A), consisting of a pin and two pairs of balls; when any rod moves, the other two are locked balls that fit into the corresponding grooves on the rods. To protect against erroneous engagement of reverse gear and first gear, spring fuse 32 is used. To engage reverse gear or first gear, the additional force of the fuse spring must be overcome. Through gear 23 (Fig. 13), power can be taken to drive additional units. The power take-off mechanism is attached to one of the flanges with hatches located on both sides of the gearbox housing. The Ural-4320, 5557 gearbox is equipped with a speedometer drive mechanism located in the cover 15 of the rear bearing of the secondary shaft (view B-B).

Rice. 14. Diagram of the lubrication system of the Ural-4320, Ural-5557 gearbox A – oil suction; B—high blood pressure; 2–oil intake magnet; 3–oil intake mesh; 4–drain plug; 5– oil pump; 6–reducing valve; 7–filler plug The lubrication system of the Ural-4320, 5557 gearbox is mixed (Fig. 14). The sliding bearings of the secondary shaft gears are lubricated under pressure. Rolling bearings, gears and the gear shift mechanism of the Ural-4320 are splash lubricated. Oil is sucked from the crankcase oil bath through the intake and channel system by gear oil pump 5, installed on the front wall of the gearbox housing and driven from the intermediate shaft. The oil intake is closed with a mesh 3 and has a permanent magnet 2 to catch small metal particles in the oil. The oil pump is equipped with a pressure reducing valve 6, adjusted to a pressure of 80±10 kPa (0.8±0.1 kgf/cm2). Oil is poured into the Ural-4320 gearbox through a hole in the top cover, closed with a plug, to the level of the control hole located on the left side of the crankcase. The filling capacity of the Ural-4320 gearbox lubrication system is 5.5 l. The internal cavity of the Ural-4320, 5557 gearbox housing communicates with the atmosphere using a breather. During maintenance, check the fastening of the Ural-4320 gearbox to the engine and the condition of its suspension, maintain a normal oil level in the box and promptly replace it according to the lubrication table.

Rice. 15. Transmission plugs Ural-4320, 5557 (YaMZ-236) 1 – oil filler hole; 2–oil pump intake cover; 3–oil level inspection hole; 4–drain hole The oil level in the gearbox housing must not be lower than the lower edge of inspection hole 3 (Fig. 15). Drain the oil from the Ural-4320, 5557 gearbox housing while hot through the drain hole closed with plug 4. After draining the oil, clean the magnet of the drain plug. After draining the oil, unscrew the bolts and remove cover 2 of the oil pump intake, clean and rinse the mesh, and then replace the cover. When installing the intake cover, be careful not to block the oil line with the cover or its gasket. It is recommended to wash the Ural-4320, 5557 gearbox with industrial oil I-12A or I-20A in accordance with GOST 20199 - 88; 2.5 - 3 liters - pour it into the gearbox crankcase, set the gear shift lever to the neutral position, start the engine for 7...8 minutes, then stop it, drain the flushing oil and fill with fresh oil. It is strictly forbidden to flush the Ural-4320, 5557 gearbox with kerosene or diesel fuel in order to avoid failure of the oil pump due to insufficient suction vacuum and, as a result, failure of the gearbox. In case of complete overhaul of the Ural-4320 gearbox, lubricate the oil pump with the oil used in the gearbox before installation. When towing a car with the engine not running, the input and intermediate shafts of the Ural-4320, 5557 gearbox do not rotate, the oil pump in this case does not work and does not supply lubricant to the bearings of the secondary shaft gears and to the cone surfaces of the synchronizers, which will cause scuffing of the sliding surfaces and wear of the rings synchronizers and leads to failure of the entire gearbox. To tow, disengage the clutch and engage direct (fourth) gear in the gearbox or disconnect the gearbox from the transmission. Towing a vehicle over a distance of more than 20 km without disconnecting the driveshaft or squeezing the clutch with the direct transmission engaged is not allowed. To prevent premature wear of the rubbing pairs, it is recommended to warm up the gearbox before starting the engine at an ambient temperature below -30°C. If this is not possible, then drain the oil from the crankcase while the engine is stopped for a long time, and before starting the engine, heat this oil and pour it into the Ural-4320 box through the hole in the top cover. For smooth and easy gear shifting and protection of the teeth of the intermediate shaft and six gears of first gear and reverse gear from end wear, as well as protection of rings. synchronizers from wear, properly adjust the clutch and prevent it from “driving.” Gearboxes Ural-4320, Ural-5557 (YaMZ-2361) The YaMZ-2361 gearboxes are a modernized modification of the YaMZ-236 family of gearboxes. On the Ural-4320, 5557 gearboxes of the YaMZ-2361 type, a reinforced input shaft was introduced by increasing the shaft diameter, the input shaft seal and the lubricant supply system from the oil pump to the input shaft cover were changed. The lubricant is supplied through an oil pipeline from the oil pump to the input shaft cover. Gearbox model YaMZ-236U - after change - YaMZ-2361-50 The Ural-4320, 5557 gearbox assembly complete with a diaphragm-type clutch is interchangeable when replacing the driven clutch disk 182.1601130 with 182.1601130-10 with an increased inner diameter of the hub and clutch release clutch 183.1601180 -01 to 184.1601180-31. The name and designation of parts of the Ural-4320, 5557 gearboxes complete with a diaphragm-type clutch before and after changing the gearbox are given in the table. Name of the part, gearbox unit. Part designation (Before change), Quantity / Part designation (After change), Quantity Primary shaft with tube assembly 236Н-1701027-Б 1 / 2381.1701025* 1 Primary shaft cover 236-1701040-А 1 / 2381.1701040 1 Oil pump 236-1704010 -A 1 / 336.1704010-10 1 Gasket 236-1704017-A2 1 / - - O-ring - - / 336.1704019 1 Pipeline - - / 336.1704300 1 Cuff 236-1701230 - / 201.1701230 1 Bolt M1 6x1.5-6 — — / 310264- P29 2 Gasket — — / 201.1015624 4 Thrust ring — — / 201.1721413 3 Note: * — Primary shaft with rear bearing and tube assembly. For the conversion of Ural-4320, 5557 gearboxes of the YaMZ-236 type into gearboxes, respectively, of the YaMZ-2361 type, a set of spare parts 2361.1700200 was created, including the parts and assemblies necessary for replacement.

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Cardan shafts and power take-off Ural-4320
Transmission gearbox Ural-4320
Bridges Ural-4320
Transfer case Ural-4320
Steering Ural-4320

Truck cranes and cranes based on trucks

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Cylinder block and cylinder head YaMZ-236 HE2, YaMZ-236 BE2
Checking and adjusting YaMZ-236
Power system and lubrication system YaMZ-236
Driven and driven clutch discs YaMZ-236, 238
Cooling and lubrication systems YaMZ-238
Fuel injection pump YaMZ-238

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Kamaz diesel engine
Repair and adjustment of Kamaz power steering
Kamaz-152 gearbox with divider
Gearbox parts for Kamaz-5320 gearbox
Kamaz transfer case and driveshafts
Kamaz gearbox repair
Clutch KamAZ-5320
Construction of Kamaz-4310 drive axles

Power steering MAZ-5551, 5549, 5335, 5336, 5337
Front axle and steering rods MAZ-5551, 5549, 5335, 5336, 5337
Clutch adjustment MAZ-5551, 5549, 5335, 5336, 5337
Adjustment and repair of gearboxes MAZ-5551, 5549, 5335, 5336, 5337
Repair and maintenance of the rear axle MAZ-5551, 5549, 5335, 5336, 5337
Front axle parts and steering rods MAZ-5516, 5440
Steering Maz-5516, 5440
Details of driving axles Maz-5516, 5440

Clutch device ZIL-130
Repair of ZIL-130 gearbox
Repair of rear axle ZIL-130
Basic parts of the ZIL-130 engine
Transfer case and power take-off ZIL-131
Drive axles ZIL-131
Steering ZIL-131
Maintenance of ZIL-645 engine parts

Various modifications of "Ural-375"

Since the Ural-375 turned out to be quite a popular model, in 1964 the designers made major changes to the design of the truck, resulting in the updated Ural-375D model. This model was created taking into account the wishes of the army, which did not like some of the design features of the first Ural-375 model.

List of main changes to the Ural-375D model:

The cabin became completely metal. It easily accommodated 3 people, although in practice there were 5;
The frame was enlarged because the Army needed van-type trucks;
The front axle connection system was removed. Now he began to work constantly;
A more economical and durable ZIL-375 engine was installed, which had lower fuel consumption. Although the presence of a constantly working front axle did not significantly reduce consumption.

The new model “Ural-375D” became the main chassis for the production of various modifications of the car, which had a wide variety of equipment:

Launcher "Grad" BM-21;
AC tanker;
The P-18 radar was also produced on the Ural-375D chassis;
Two modifications of truck cranes 8T and 9T;
Various kungs, workshops and laboratories at their base;
"Ural-375A" had a longer frame, it was developed specifically for installing military shelters. The length of the car of this modification was 8,000 mm;
To install various special equipment, the “375E” modification was used. Cranes, tanks and other special equipment were installed on this chassis;
The “375C” modification and its modernized version “375SK1” were used as tractors and timber carriers;
For heavy use in the Far North, the “375K” modification was used. It had double glass, improved thermal insulation and special frost-resistant wiring insulation, which allowed the car to be operated at temperatures of minus 60 degrees. In order to start the engine in such cold weather, the truck had a special pre-heater;
The “375N” model was intended for use in the national economy. In addition to these, there were many more modifications of the Ural-375D.

For export sales, modifications “375ДУ” and “375ДМУ” were produced.