Quality standards

DAF diesels are very popular in the world due to their efficiency and reliability. The basic design requirement is smooth, trouble-free operation, together with low fuel consumption, and a low noise level. The power characteristics of the engines can be chosen according to the area of application.

DAF diesel employs the most advanced production techniques to build its engines. The computer-controlled machining centres serve for production of the engines. All the crucial engine components such as cylinder head, cylinder block, camshaft, connecting rods and valve gear are machined in-house. DAF Diesel is extremely critical of its own quality and it devotes much attention to the smallest details. Its quality standards are very high.

A good reputation can be maintained by paying constant attention to a very high quality level. The same standards apply to components such as fuel injection pumps, and alternators, which DAF obtains from specialized outside suppliers. Every device is tested and inspected before it is found worthy of DAF.

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Finding a fault in a car

If your car doesn't start, you should check 3 things first: the battery, the fuel level and the spark plugs. It is easy to repair these faults. If the battery is dead, you should recharge it. If this doesn't work, you should replace it. If the petrol tank is empty, fill it up. If the spark plugs are dirty, clean them, and if the gap in the spark plug is too narrow or too wide, adjust it to the correct width. If your car still doesn't start, the petrol pump may be broken or the fuel pump may be blocked. If there is a loud CLICK! when you turn the key, the starter motor may be jammed. In this case you can try to release it by pushing the car forwards and backwards. If the car still doesn't start, the starter motor should be repaired or replaced.

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Instructions for checking the spark plug

1. Remove the cover.

2. Place the spanner over the spark plug.

3. Rotate the plug counter-clockwise until it is loose.

4. Remove the plug from the socket.

5. Examine the gap and check that it is clean.

6. Insert the gauge in a gap.

7. Check that the gap is between 0.65 and 1.00 mm wide.

8. Replace the plug in the socket.

9. Rotate the plug clockwise until it is hand-tight.

10. Place the spanner over the plug and give a quarter turn clockwise.

11. Do not over tighten the plug.

12. Replace the cover.

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Some pieces of advice to an auto fan

1. If the generator indicator lights, check the integrity¹ of the generator belt. Then knock on the relay regulator cover with a screw-driver (in case if we deal with non-electronic relay). Check the corresponding fuse in the fuse unit.

2. If the indicator doesn't go out, check the connection of the wire bundle to the generator. If necessary tighten the nut, connecting the terminals to the generator.

3. To avoid a carburetor obstruction² mount an additional filter between the gasoline pump and the carburetor.

4. Mount the lifting jack correctly to avoid damage to the car-cabin and the lifting jack tilting. Don't forget to set the car on the manual brake and in first gear.

5. To prevent the car locks and the car boot from freezing in winter, pour some drops of engine oil into your car.

6. While fuelling the car in hot weather don't fill the tank up to the cover. During the process of heating the fuel, volume within the tank, can increase to 21, it leads to losses. The fuel consumption can be increased to 40% at strong front and lateral wind⁴. In this case driving at a direct gear with minimum speed is recommended as the most economic driving.

7. Oil is to be filled up to the level defined by the lower and the upper marks on the oil level indicator. If the oil level is above the maximum mark, the oil consumption increases sharply and the engine function gets worse. It's a result of oil leakage through some spaces of the oil crankcase: it is sprayed by a crankshaft. Besides this a large amount of oil gets on the cylinder walls and penetrates into the combustion chamber. It is burnt there and forms snuff.

8. If your car is pulled to one side or another during the process of braking - your brakes function unequally⁵, and probably of all the front brakes. If the car is pulled to the right - the left wheel brake is defective, if to the left - the right wheel brake is defective. It is dangerous. You are to put in order one of the brake cylinders. It is necessary to change it. But if you have no new cylinders do the following. Remove the brake shoe from the defective cylinder side, pull out the piston, hold up the sealing rubber cover and strongly moisten the piston surface with brake liquid. Then pull the piston into the cylinder and pressing on the brake pedal, return it into the initial position. This procedure is repeated until the piston starts moving easily in the cylinder.

NOTES

¹integrity - целостность

²obstruction - засорение

³trample - вмятина

⁴front and lateral wind - передний и боковой ветер

⁵unequally - неравномерно

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THE DT-75K TRACTOR

The DT-75 K hillside tractor is constructed for various agricultural and forestry jobs in conjunction with mounted machines and implements. Implements are front-mounted and rear-mounted and the tractor performs its useful work both on the forward and reverse runs without turning at the ends of the operated fields. On a forward run the rear-mounted implement is in the working position while the front-mounted implement is in the transport position. During the reverse run, it is the other way round.

The original construction of the operator's seat ensures a constant vertical position of the operator during the work on slopes. To work across a slope a right-side protective device to support the tractor is hydraulically lifted or lowered from the operator's cab. A wide track provides good stability across the slope as well. To move directly ahead on a slope and ensure the stability of the tractor, it is equipped with the ability to lower the idler wheels to the ground. To increase maneuverability of the tractor, the idler wheels can be lifted by a hydraulic drive.

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THE DT-75M TRACTOR

This tractor is provided with a more powerful engine and higher working speeds. It is used for various agricultural jobs as a single unit with mounted, semi-mounted and trailing hydraulic and nonhydraulic implements. The tractor can perform the plowing of light and heavy soils, presowing cultivation, drilling and harvesting of grain and industrial crops, improving of meadows and pastures, application of fertilizers and transport work. Besides this, it is used on land reclamation and road building with a bulldozer attached.

The tractor is equipped with a hydraulic implement control linkage, a mechanically operated seven-speed gearbox and a rear axle combined in a common housing. The rear axle with its steering mechanisms, ensure reliable steering. The PTO-shaft is driven from the gearbox and is located in the rear of the tractor. To obtain low working speeds a mechanical reducing gearbox is provided on the tractor, so the tractor may be used for potato and beet harvesting.

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