97
SEASONAL MAINTENANCE
Seasonal maintenance is performed twice a year (in spring and
autumn) and, if possible, combines with the next maintenance
in accordance to the warranty card of the service book.
Prior to the summer season operation
1. Remove the oil pump cover and check the condition of
the oil pump drive gears.
2. Check the operation of the screen wiper and washer.
Eliminate the defects.
3. Replace oils in the units with summer (all-season) grade
oils specified in the lubrication schedule.
Prior to the winter season of operation
1. Check the density of fluid in the engine cooling system
and set the required density (1.075 — 1.085 g/cm3 at 20°C), if
necessary.
2. When filling the washer reservoir with the water, pour off
the water.
3. Check the operation of the body heating and ventilation
systems. Eliminate the defects.
4. Wash the fuel tanks prior to the winter season of operation
(or after 30000 km).
5. Replace oils in the units with winter grade oils specified
in the lubrication schedule.
ZMZ-40906 ENGINE
engine suspension
During the use of the motor vehicle, check the tightening of
threaded joints of the front and the rear engine suspensions (refer
to Appendix 2) and condition of the supports. Delamination and
breakage of the engine supports is not permitted.
engine cylinder head
During the use of the engine, the cylinder head bolt tightening
is not required. Perform the tightening only when the engine is
cold, if necessary. In order to provide the tight and even contact
of the cylinder head bolt with the gasket, perform the tightening
in a sequence shown in Fig. 9.1, in two steps. Tighten the bolts
evenly using the torque wrench (refer to Appendix 2).
Summary of Contents for PATRIOT
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