12.3. Periodic maintenance * (TO-1, TO-2, SO)

Table 11.3. Periodic maintenance * (TO-1, TO-2, SO)
Content of works
Frequency
Technical requirements
Tool and materials

TO-1
TO-2
TO-3


Engine
To check:





- state and tightness of cooling systems, food, lubricant
+
+
-
Dribble of cooling liquid, fuel, oil is not allowed
Visually
- corner of an advancing of ignition of ZMZ-4025,-4026, UMZ-4215.
+
+
-
see section 9. If necessary to adjust
Stroboscope
To check fastening:





- heads of the block of cylinders (4215, ZMZ-4025, 4026)
-
+
-

Key of 17 mm
- oil case
-
+
-
To tighten the weakened nuts
Key of 13 mm
- filter settler (UMZ-4215), filter of thin purification of fuel (UMZ-4215)
-
+
-
To tighten the weakened nuts
Key of 13 mm
- radiator and water pump, case of the thermostat, pulley of the water pump and tension roller **
-
+
-
To tighten the weakened nuts
Key of 13 mm
- generator and starter
-
+
-
To tighten the weakened nuts
Key of 17 mm, 19 mm
- drives air and butterfly valves of the carburetor
+
+
-
To tighten the weakened fastening
Key of 10 mm, screw-driver
To adjust:





- belt tension (belts ** 4215, ZMZ-4025, 4026) drive of units
+
+
-

Ruler with a dynamometer, keys 12, 13 mm
- minimum frequency of rotation of a bent shaft idling and content of carbon monoxide (SO) and hydrocarbon (SN)
+
+
-

Tachometer, screw-driver, gas analyzer
- a gap between electrodes of candles
+
+
-
The gap has to be 0,8-0,95 mm (ZMZ-4025, 4026); 0,7-0,85 mm (ZMZ-4061, 4063, UMZ-4215)
Probe, candle key
- a gap between valves and yokes (4215, ZMZ-4025, 4026)
-
+
-

Key of 13 mm, screw-driver, probe
To clear:





- the case of the air filter of the carburetor and to blow the filtering element
-
+
-
To blow from within a corrugation, and then outside
Source of compressed air
-? the case of the air filter of the carburetor and to replace the filtering element
-
++
-
See section 4.1
Rags
- the case of the fuel filter settler and its filtering element (fall)
-
-
+
After installation of the case into place to be convinced of lack of dribble of fuel
Keys 10, 12 mm, flat-nose pliers, unleaded gasoline, rags
- a glass settler of the filter of thin purification of fuel (for UMZ-4215 engines) and to wash out the mesh filtering element. To replace the paper filtering element ***
-
+
-
After installation of a glass into place to be convinced of lack of dribble of fuel
Unleaded gasoline, rags
- high-voltage wires and pomekho-podavitelny tips of spark plugs
+
+
-

Unleaded gasoline, rags
- external surfaces of devices of ignition, cover and runner of the sensor distributor of ignition (4215, ZMZ-4025, 4026)
+
+
-

Unleaded gasoline, rags
To merge a sediment from the fuel tank (fall)
-
-
+

Capacity for gasoline, a key of 24 mm
To merge a sediment from the case of the fuel filter settler
-
+
-

Key 17
To replace:





- spark plugs
-
++
-

Key candle
- the filter of thin purification of fuel (for ZMZ-402, 406 engines)
-
-
-
Dribble of fuel is not allowed

Transmission
To check:





- state and tightness of a hydraulic actuator of coupling, transmission and back bridge
+
+
-
Dribble of liquid and oil is not allowed
Visually
- inhaling of a nut of a flange of the leading gear wheel of the back bridge
-
+
-

Keys 14, 17, 27 mm,
- fastening of a reducer of the back bridge
-
++
-
To tighten the weakened nuts
Key of 14 mm
- fastening of the main and working cylinders of coupling, axis of a pusher of the main cylinder of coupling
-
-
+
To tighten the weakened nuts
Keys 13, 17 mm
- a coupling case to the block of cylinders
-
-
+
To tighten the weakened nuts
Key of 14 mm
- fastening of the transmission and its cases
-
-
+
To tighten the weakened nuts
Keys 12, 19 mm
To clear:





- sapuna of the transmission and back bridge
-
+
-

Rags
* Operation on lubricant of knots and units of the car are specified in tab. 11.4 "The card of lubricant".
** Through each 500 km.
*** For the filter with the paper filtering element.