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Clutch
uncoupling is for short-term disconnection of working engine from the transmission and smooth their connections required at the start of movement (pulling away) car, and after a gear change in the gearbox during motion. In addition, the clutch protects the engine parts and transmission units from overload which may occur during heavy braking of the car with Failure to disconnect the motor. Clutch installed on all models Golf III, single-plate, dry, with a central pressure spring diaphragm type. The slave drive assembly with damper slots located on the input shaft of a transmission. Drive clutch or mechanically through a cable or hydraulic, with the main and working cylinders (only for transmission of type 02A). Structurally, the clutch, made by Sachs, consists of a casing of coupling with a press disk, a conducted disk and a clutch mechanism. The clutch disc with a resilient hub has an outer diameter of 190 to 228 mm, depending on the type of transmission. So, for the transmission of type 084 or 085 diameter of the clutch disc is 190 mm, for the transmission of type 020 - 210 mm, and for the transmission of type 02A - 228 mm. Clutch disc has two friction linings riveted to the drive independently of one another. Clutch disc is centered to the primary shaft of the gearbox and has a minimum thickness of the lining equal to 7.8 mm. Tightening torques plate mounting bolts to the flywheel following Nm: engine cylinder capacity 1.4 and 1.6 liters of 25 Engine 2.0 / 2.8 L 20 for all-wheel drive model 20 Location mounts the flywheel and clutch components depends on the type of transmission.
| Fig. 5.1. Details of the mechanism of coupling of cars with engines of 1.4 liters (with 08.95 g); 1.6 L; 1.8 L; 2.0 l (85 kW / 115 hp): 1 - a bolt, 20 Nm; 2 - a flywheel; 3 - a conducted disk; 4 - centering chuck; 5 - a spring clip; 6 - plate clutch; 7 - bolt 60 Nm (then tighten another 90 ?�); 8 - the intermediate plate; 9 - pressure plate
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On vehicles with 5-speed transmission of type 020 (model cars with engines of 1.4 liters (with 08.95 g) 1.6 / 1.8 liter, 2.0 liter (85 kW / 115 hp) set the clutch , details of which are shown in Fig. 5.1. The clutch includes a clutch pedal, a self-regulating cable clutch, pressure plate 9 to 6 clutch plate and spring clip 5 and the clutch disc 3 Pressure plate 8 with an intermediate plate 7 is bolted directly to the flange of the crankshaft, while the flywheel 2 in the form of " pot "is bolted to the housing 1, the pressure plate.
| Fig. 5.2. Details of the mechanism of coupling of cars with engines of 1.4 liters (09.91 - 07.95); 2.0 l (110 kW / 150 hp); 2.8 liter and four-wheel drive: 1 - a flywheel; 2 - driven plate; 3 - the pressure plate assembly; 4 - bolt
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On vehicles with manual transmission type 02A, 084 or 085 (engines of 1.4 liters (09.91 - 07.95), 2.0 liter, 110 kW / 150 hp 2.8 L .; and all-wheel drive cars) arrangement of the traditional clutch parts: flywheel 1 (Fig. 5.2) is mounted on the crankshaft. The housing 3 with the clutch pressure plate assembly from the diaphragm spring, called "basket", is bolted to the flywheel 4 which cross tightened (crosswise) in several stages.
NOTE Pressure plate and diaphragm spring can not be dismantled, and their failure should be changed together. |
The apparatus has a clutch disc splined to transmission input shaft and free to slide on it. When you press the clutch pedal effort through the drive clutch lever is transmitted to the clutch. Consequently moves disposed on the clutch release bearing, which presses on the sector and advances the central portion of the diaphragm spring pressure plate toward the flywheel. This outer part of the spring away from the flywheel and moves over a pressure plate, releasing the clutch disc, which moves away from the flywheel. Coupling off and the rotation of the crankshaft of the engine is not transmitted to the transmission. When you release the clutch pedal through the diaphragm spring clutch disc, which moves freely on the clutch shaft splines transmission, the pressure plate is pressed against the working surface of the flywheel. Thereby providing frictional connection between the engine crankshaft and the input shaft of a transmission. When wear of the friction linings slave drive moves the pressure plate to the flywheel, and the sector diaphragm spring straightened. Hydraulic clutch requires no adjustment as the hydraulic fluid in the system automatically compensates for lining wear after each pressing the clutch pedal.
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