UAZ UAZ-220695, Руководство по эксплуатации

Страница: 48 / 90

48
Fig. 9.5 Pull up of drive belts:
1 - pulley - crankshaft damper; 2 - idler pulley; 3 - mounting bolt of idler pulley; 4 - adjustment bolt; 5 - drive belt of water pump and
generator; 6 - generator; 7 - intake pipe; 8 - receiver; 9 - throttle assembly with throttle position sensor; 10 - fan pulley; 11 - oil filler cap;
12 - power steering pump pulley; 13 - mounting bolt of power steering pump; 14 - draw bolt; 15 - water pump pulley; 16 - belt of fan
drive and pump of power steering
Exhaust system
CAUTION! The operating temperature of the catalyst is 400-
800 ° C. It is not allowed to operate the vehicle
without catalyst protective screens. When driving or parking the vehicle, make sure that the exhaust system shall not come
into contact with flammable materials (e.g., with dry grass).
No leakage of exhaust gases in the joints of the exhaust system with gaskets is allowed and must be repaired at the
first occurrence. Stuck nuts shall be tightened (see Annex 2) with preliminary wetting of thread connections with special
liquids or with kerosene.
When the fuel system or the ignition system is faulty, a great quantity of unburnt hydrocarbons ingress into the
catalyst, thus temperature in the catalyst can rise above the admissible limit and it will fail. So, special attention must be
paid to the operation of the fuel system and the ignition system. Three-cylinder operation of the engine is prohibited even
for a short period of time.
Fuel injection system with microprocessor-controlled fuel supply and ignition (fig. 9.6)
Safety precautions
1. Prior to dismantling and installation of any components or wires of the control system, it is necessary disconnect
the accumulator battery ground wire.
2. It is not allowed to start the engine without a reliable connection of the battery and the ground wire between the
engine and the car body.
3. The accumulator battery may not be disconnected from the vehicle's electrical network while the engine is
running.
4. In case of charging from the external source, the battery must be disconnected from the vehicle's electrical
network.
5.
The control unit may not be exposed to temperatures above 80°C, e.g., in an oven dryer.
6. Prior to electric welding operations, remove fuel tanks, disconnect the battery wire and the control unit connector.
7. To prevent rusting of pins during engine vapor cleaning, do not direct the nozzle towards system components.
8. The electronic components of the control systems are designed for very low voltage and are vulnerable to
electrostatic discharges.
CAUTION! To access the spark plug of the fourth cylinder, it is necessary to remove the plug on the rear panel of
the hood.
9. The fuel system, at the section from the fuel electric pump to the fuel pressure controller on the running engine, is
pressurized to 3 kg/cm
2
.
CAUTION! It is not allowed to loosen or tighten the connections of the fuel line with the engine running or