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Exhaust gas leaks from the exhaust system connections tted
with gaskets are not allowed and shall be eliminated on the rst
occasion. Tighten heat attached nuts (see Annex 2) after rinsing
threaded connections with specic uids.
When the feed system or the ignition system is faulty, a lot
of unburnt hydrocarbons ingress into the neutralizer, due to this
the temperature in the neutralizer can rise above the admissible
limit (750–800 °С) and the neutralizer will fail. Therefore, special
attention shall be paid to the operation of the feed system and the
ignition system. Three-cylinder-based operation of the engine is
prohibited even for a short period of time.
Fig. 9.6. Aggregates drive belt tension
1 — synchronization sensor; 2 — automatic tension mechanism; 3 — alternator and
water pump drive belt; 4 — alternator pulley; 5 — inlet pipe; 6 — receiver; 7 — throttle
assembly with throttle position sensor; 8 — oil ller cap; 9 — valve cap; 10 — fan
pulley; 11 — water pump pulley; 12 — steering system pump pulley; 13 — steering
system pump attachment bolt; 14 — adjusting bolt; 15 — fan and steering system
pump drive belt; 16 — crankshaft pulley damper.
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