Device, diagrams, repair
Front drive axle of the T-40 tractor - design and repair
Front axle design
The front drive axle of the T-40 AM and T-40 ANM tractors is used to increase traction forces and increase cross-country ability on moist soils and in off-road conditions. The front axle consists of a transfer case, differential, main and final gears and suspension.
Diagram of the T-40 front axle: 1 - transfer case housing; 2 - plug; 3 - gear; 4, 24 — ball bearings: 5 — front cover; 6 — transfer case shaft; 7 — drive shaft of the front drive axle; 8 — main gear drive shaft; 9 - drive gear; 10 - glass; 11 — driven gear; 12 — adjusting shims; 13 - wedge; 14 — axle shaft; 15 — brake washer; 16 — bridge body; 17 — pawl axis; 18 - dog; 19 — differential housing cover; 20 — shield; 21 — final drive; 22 — front wheel suspension; 23 — cardan; 25 — splined holder; 26 — differential housing; 27 - pin; 28 — sleeve.
Front axle final drive
The main gear consists of a pair of bevel gears with a circular tooth. The drive gear is mounted in a cup on two ball bearings. The driven gear is part of the differential and is attached to the differential housing with bolts and pins.
During operation of the front axle, it is necessary to monitor the lateral clearance in the engagement of the teeth of the main gear. If noise or other malfunctions occur, it is necessary to check the mesh clearance or axial play of the drive gear. Due to tooth wear, an increase in the lateral clearance in the meshing is permissible up to 2 millimeters. If the gap increases due to wear of the bearing tracks, they must be replaced with new ones. The factory adjustment of the lateral clearance in the gear mesh is in the range of 0.17-0.65 mm.
Both gears are replaced simultaneously during operation and further development of their service life. When installing the sleeves, the total number of shims on both sides should be such that the differential rotates freely in the bearings by hand without any jamming or displacement.
Front axle differential
The differential allows the drive wheels to rotate at the same angular speed, which is required when driving the tractor over uneven terrain and when performing maneuvers.
The front drive axle differential design is a double-acting ratchet-type overrunning clutch. The differential consists of a housing, a splined race, a driven gear and a cover, connected to each other using four bolts. In the driven gear, cover and differential housing there are two axes each, on which a pawl is installed on a key. As the driven gear rotates, the pawls engage with the inner races by the frictional force that appears between the special patterns on the ends of the pawl axles and the surfaces of the brake washers.
Using springs, the axles are constantly pressed against the brake washers to create friction. Depending on the direction of rotation, the pawl engages with one of its ends. If the rear wheels rotate with less than 4% slip, the splined races overtake the driven gear, forcing the pawls to click along the teeth of the races. When the slipping of the rear wheels exceeds 4%, the forward movement of the tractor will decrease, while the driven gears and angular speeds of the cage will be leveled. With a subsequent increase in slipping of the rear wheels, the pawls will engage with the splined race, as a result of which torque will be transmitted from the driven gear through the splined races and axle shafts to the front wheels.
The differential is mounted in sleeves on two ball bearings: on one side on the neck of the differential cover, on the other - on the neck of the driven gear.
The T-40 front axle housing is equipped with a breather, which serves to maintain stable pressure in the cavities of the differential, main gear and hoses. To prevent oil from leaking out of these cavities, special sealing rings and cuffs are installed.
Torque is transmitted to the final drives through dual cardan shafts. Needle bearings and universal joints are unified with similar components of GAZ vehicles. All universal joints used consist of a spider and two forks. The fork holes contain needle bearings, into which the crosspiece axles are inserted.
Rework and modernization of the T-40 front axle
As a visual aid for remaking the front axle of a tractor, watch this video.
Reducer of the front axle of the T-40 tractor
To transfer the drive from the gearbox to the front drive axle, a gearbox (transfer box) is used. The gearbox consists of a housing and a gear, which is mounted on the shaft splines. The shaft and gear are mounted in a housing on two ball bearings. Using the drive shaft, rotation is transmitted from the shaft to the drive shaft of the main gear.
To prevent winding of plants, a special protective casing is installed on the drive shaft.
Oil from the tractor transmission is used to lubricate the bearings and gears. Cuffs are installed in the front cover of the gearbox housing of the T-40 tractor to prevent oil leakage.
Diagram of the front axle gearbox: 1, 8 - cuffs; 2, 13, 19 — bolts; 3, 12 — lock washers; 4 - cover; 5 — roller bearings; 6 — body; 7 — bearing cup; 9 — drive gear fork; 10 - drive gear; 11 — ball bearing; 14 — driven gear; 15 — hairpin; 16 - plug; 17 - pallet; 18 — cuff body; 20 - axle shaft.
Front axle final drives
Final drives are used to increase torque and reduce rotation speed transmitted to the front drive wheels of the T-40 ANM and T-40 AM tractors. All final drives are single-stage gearboxes with spur gears. The drive gear is mounted on the splined end of the fork and is mounted in the housing on two tapered roller bearings. The driven gear is placed on the splines of the axle shaft and is installed in the gearbox housing on two ball bearings. The wheel disc is attached to the axle flange using bolts. The steering arms and brackets for the front wheel protective fenders are attached to the gearbox housing. The steering linkage rods, in turn, are riveted to the swing arms.
Front drive axle of the T-40 tractor
Before studying in more detail the main parts that make up the T 40 front drive axle, it is advisable to familiarize yourself with its features. It represents one of the most significant components of this vehicle, which is responsible for its movement across the terrain.
Thanks to the high level of reliability and simple design, the unit has a long service life. At the same time, for uninterrupted operation, it is necessary to perform timely maintenance in accordance with the manufacturer’s recommendations.
Bridge structure
The design diagram of the front axle of the T 40 tractor allows you to form an objective idea of the design of such an element. It consists of many large and small parts, among which it is advisable to highlight a number of the most important:
- transfer case and related mechanisms;
- differential;
- suspension;
- transmissions - main and final.
Since each of them has an impressive number of features, it is advisable to study them in more detail. You should consider the final drive of the bridge, which consists of two bevel-type gears, as well as the main gear. For successful fastening of the latter, a bearing and other elements are used. The driven gear is mounted using special bolts directly to the differential. It should be noted that the appearance of extraneous noise during the operation of this unit, as well as other problems, requires immediate elimination, since even with severe wear, the gap in the engagement between the gear teeth should be no more than 0.2 cm. If this indicator is exceeded, it is strongly recommended to carry out repairs by replacing damaged items.
Another important component is the differential, which is responsible for the same rotation speed of the front pair of wheels. This allows the tractor to move effectively off-road, as well as perform complex maneuvers. The main element of this part is the body, splined race, gears and cover.
When studying the drive of this unit, it is advisable to note the final drive, which is used to increase torque and reduce speed. An important element is a single-stage gearbox equipped with gears with straight teeth.
To maintain optimal tractor performance, it is recommended to monitor the play of the fork axles at the end of the agricultural work season. If it exceeds 0.4 mm, this is a good reason for carrying out repair work.
It is also necessary to mention the front axle suspension, which allows the tractor to move without strong shaking and vibrations caused by uneven road surfaces. The suspension bracket is bushed and mounted on the final drive housing, allowing it to rotate freely. Components subject to friction are lubricated to prevent excessive wear and subsequent breakdown.
The drive from the transmission to the axle is carried out using a gearbox consisting of a housing, as well as gear mechanisms mounted on a spline. The drive shaft transforms the movement to the main gear and is equipped with a protective casing. The presence of the latter allows you to avoid plants and other foreign objects getting into this important unit.
T-40 front axle diagram
In the process of servicing or repairing such a unit, the technician will be helped by a diagram of the T 40 front axle, which contains detailed information about the key structural elements, their location and other useful information. Guided by such a scheme, you can easily troubleshoot problems yourself, saving on the services of specialists.
spare parts for tractor t-40 and t-50
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group T25.16. Clutch T-40 10188 Clutch basket bolt. regul, on Sat. (main couplings) T-40.. T2 180.00 rub. 70593 Clutch basket bolt. adjuster, complete with nut (main coupling) T-40 T2 RUB 180.00 10208 Main clutch shaft T-40; 10 spline T2-B2 RUB 1,300.00 61298 PTO clutch shaft T-40; (12/22 spline) T5 RUB 1,700.00 63583 Main clutch engagement fork shaft T-40; T2-B1 390.00 rub. 10189 Clutch fork T-40 T2-B RUB 330.00 10190 Clutch release fork T-40 T2-B RUB 1,500.00 63182 Driven disk with cover. T-40 (small hub) 10 tooth T2-B RUB 1,100.00 72492 Driven disk with cover. T-40 (small hub) 14 tooth T2-G RUB 1,400.00 10195 Disc of the main clutch T-40 T2-B1 RUB 1,660.00 61331 Clutch basket D-144, T-40 in ass. T2-B1 RUB 7,900.00 10198 Laying T-40; without bearing T2-B1 780.00 rub. 70654 R/K clutch basket D-144 (small) 830.00 rub. 10201 Release lever of the main clutch T-40 T2-B1 RUB 150.00 10202 PTO release clutch lever T-40 T2-V RUB 230.00 group T25.17. Gearbox T-40 10016 Gear block s/x (z1=25, z2=34) T-40 T2-D RUB 1,950.00 73436 Primary shaft T-40; T2 RUB 1,650.00 73540 Reverse shaft T-40 T2-K RUB 1,800.00 70261 Locking roller T-40; T2 750.00 rub. 67319 Shift roller 1 and deceleration transmission T-40 T2-V1 300.00 rub. 73277 Shift roller for 2nd and 3rd gears T-40; T2-B1 300.00 rub. 73278 Shift roller 4th gear and reverse gear T-40; T2 300.00 rub. 73284 Plug incl. 4-gear rear progress T-40; T2 540.00 rub. 71550 2nd and 3rd gear shift fork T2 RUB 240.00 69551 Reverse shift fork T-40 T2 B 470.00 rub. 10024 Set of gears with reverse clutch D-144 T2-A RUB 10,650.00 70097 Shift lever housing T-40; T2-G 975.00 rub. 71800 Switching mechanism T-40 T2B RUB 4,400.00 73821 Reverse clutch and hodome T-40; D-144; T6-A RUB 1,100.00 10026 Reverse clutch and hodome T-40; D-144; (z=22, m=2.5) T6-B 1,100.00 rub. 73438 R/k checkpoint T-40; RUR 80.00 73437 R/k checkpoint T-40; with differential 80.00 rub. 65706 1st gear gear (z=15) Т2-В RUB 1,300.00 10031 Gear 2nd and 5th gears z27/39 T-40; T2-G RUB 1,420.00 65707 Gear 2nd and 3rd gear (z=17/19) Т2-В RUB 1,420.00 66053 Gear 5th and 6th lane (z=30/35) T-40; T2-B1 RUB 1,400.00 10035 6th gear driven gear (z=22, m=4) T-40 T2-D 850.00 rub. 10038 Slow gear (z=9, m=4) T-40 T2-E RUB 810.00 10039 Driven bevel gear z=23 T-40 T5-G RUB 1,340.00 71563 Reverse bevel gear (z=19) T-40 T6-D RUB 2,900.00 10040 Reverse bevel gear (z=23) T-40 T6-B RUB 1,500.00 group T25.35. Brakes T-40 70260 Brake drum T-40 left in sat. with long shaft T2 RUB 4,800.00 10077 Brake drum T-40 right in sat. with short shaft T2 RUB 3,800.00 71554 Rear axle sleeve cover T-40; T2 450.00 rub. 10080 Brake band assembly T-40; T-25; T2-B5 600.00 rub. group T25.42. Power take-off shaft T-40 69584 PTO shaft T-40; intermediate T2 RUB 2,780.00 70258 Synchronous shaft in Sat. T-40 T2 RUB 3,000.00 group T40.18. Transfer case T-40 73440 Transfer case shaft T-40; T4 RUB 1,150.00 69647 Transfer case housing T-40 (empty) T40A - RUB 1,950.00 73442 R/K transfer case T-40; 45.00 rub. group T40.23. Front drive axle T-40 10043 Front wheel drive shaft T-40 (L=1000mm) T40AG RUB 2,400.00 69555 Shaft shank T-40; (front axle) T40A-B1 RUB 1,000.00 68884 Double fork T-40 T40AA RUB 2,900.00 71797 Short fork (T40A-A) T40A - RUB 1,900.00 70594 Bushing front axle T-40; T40A - 350.00 rub. 70908 Front axle lock T-40; T40A-A2 170.00 rub. 70014 Crosspiece rotation of the hinge T-40 (53A-) T40A- 400.00 rub. 71553 Suspension rotating bracket with bushing T-40 T40A - RUB 5,200.00 70598 Suspension spring T-40 T40A - 650.00 rub. 73276 Rusk T-40 T40A-B 30.00 rub. 73102 Suspension cover T-40; T40A - 100.00 rub. 74381 Front drive axle joint T-40; from Sat. T40A- 5,200.00 rub. 70021 Drive gear (z=12) in pair with (z=31) T-40 T40AG RUB 1,030.00 group T40.24. Final transmission T-40 69945 Locking clutch T-40; T2B 680.00 rub. 73449 Final transmission in the assembly (rear axle) T-40 used T4 RUB 8,200.00 71810 Axle shaft T-40; T5 RUB 3,200.00 73450 R/k final drive, rear axle T-40; RUB 50.00 73142 Bearing cup in collection. with sub-com 42215 T-40 gearbox; T2 RUB 1,500.00 70264 Drive gear (z=12) T-40 T2B RUB 1,900.00 group T40.28. Frame T-40 10078 Front bracket bushing (frame) T-40 T2-A RUB 185.00 70909 Bracket (PNM) T2-A RUB 3,100.00 group T40.30. Front non-driving axle T-40 69740 Pin T-40 T2 800.00 rub. 73454 Front non-driving axle connection (without cuffs) T-40; RUB 75.00 73455 Front axle non-driving axle (full) T-40; RUB 155.00 73453 Front axle axle T-40; RUR 55.00 72152 Left rotary lever T-40: T40A-A RUB 1,600.00 72153 Right rotary lever T-40: T40A-A RUB 1,600.00 10061 Axial axle T-40 T2-B1 RUB 3,900.00 group T40.34. Steering T-40 63578 Cardan shaft T40M - 420.00 rub. 63581 Bipod shaft T-40; T3-B RUB 2,200.00 10079 Steering cardan assembly with crosspiece T-40; T2-B RUB 1,300.00 68186 Flow valve (tractor T-40 and mod) T3 RUB 1,900.00 70015 Cardan cross T2 RUR 380.00 67620 Steering mechanism. GUR T-40 T3 RUB 11,500.00 73457 R/k GUR T-40; (full) RUB 100.00 69589 T-40 steering bipod; T5 RUB 1,250.00
Prices for spare parts for tractors, suppliers 2801 (+35)
Demand for tractor spare parts, buyers 267
complain Posted: 05/29/2019, views: 6925
