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2.1.11. Natyazhitel of a belt of the drive of hinged units

Static check
Natyazhitel of a belt of the drive of hinged units it is possible to check statically, working as it is described below.
1. Disconnect a belt of the drive of hinged units in a zone of a natyazhitel of a belt.
2. Using the special tool, move a natyazhitel of a belt from its free position at full capacity of the piston and back to free situation to make sure that there is no jamming and a prikhvatyvaniye and make sure that the spring of a natyazhitel of a belt is in tension.
3. Turn a pulley of a natyazhitel of a belt of the drive of hinged units and check it for existence of damages and freedom of rotation and correctness of adjustment. If necessary establish a new natyazhitel.
4. Examine the zone surrounding a natyazhitel of a belt of the drive of hinged units on availability of lubricant or other pollution. Before installation of a new natyazhitel eliminate all leakages. If the natyazhitel of a belt is polluted, do not try to clear it since the damping mechanism located inside can be damaged. If necessary establish a new natyazhitel.
5. If the natyazhitel of a belt of the drive of hinged units meets above-mentioned criteria, pass to dynamic check. If the natyazhitel of a belt of the drive of hinged units does not meet above-mentioned criteria, establish a new natyazhitel.

Dynamic check
Natyazhitel of a belt of the drive of hinged units it is possible to check dynamically, working in the sequence given below.
At the working engine watch movement of a natyazhitel of a belt. Natyazhitel has to move (to react) at sharp acceleration of the engine or when cycling the А/С coupling. If movement of a natyazhitel has no constant character without acceleration of the engine or cycling of the А/С coupling, it is possible that the pulley or a shaft is deformed or has a deviation from a standard form, or the damping mechanism located in a natyazhitel is damaged. Excessive running start of a belt of the drive of hinged units (unequal depth of flutes in a belt of the drive of accessories) can be the cause of excessive movement of a natyazhitel of a belt. Check a problem state, having established a new belt of the drive of hinged units.