Belarus 1221.2, Руководство оператора

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BELARUS- 1221.2/1221В.2/1221.3 Supplement
283
SUPPLEMENT
Adjusting parameters of Д -260.2/ Д -260.2S/ Д -260.2S2 engine
Designation Measuring unit Description
Oil pressure in the lubrication system of warmed-up
engine at rated speed of crank shaft М P а
(kgf/cm
2
)
0,28-0,45
(2,8-4,5)
Coolant temperature in coolant system
° С
80-95
Alternator belt tension at 40 N (4 kgf) applied to the
belt mid-way between pulleys of alternator and of
crankshaft mm 29+4
Clearance between the rocker arm pane and a valve
plug end face on cold engine for valves
• intake valves
• exhaust valves
mm
mm
0,25…0,30
0,40…0,45
Injection timing angle before T.D.C.
degrees
20 ± 1
(15±1)**
)
or
16±1**/6±0,5***
)
Pressure at the beginning of injector nozzle needle
lifting
М P а
(kgf/cm
2
)
21,6+0,8
(220+8)/240+12***
)
Tightening torque for main threaded joints: N • m
(kgf • m)
• cylinder heads anchor bolts
• main bearings bolts
• nuts of crankpin bearings bolts
• flywheel mounting bolts
• balance weight mounting bolts
• injectors mounting bolts
• crankshaft pulley bolts
• centrifugal oil filter cap nuts
• mounting bolts of torque vibration damper
• air cleaner wing nuts
190-210 (19-21)
220-240 (22-24)
100-120 (10-12)
160-180 (16-18)
100-120 (10-12)
30-35 (3,0-3,5)*
160-200 (16-20)
35-50 (3,5-5,0)
80-100 (8-10)
8-10 (0,8-1,0)
* With preliminary tightening torque 15…20 N • m (1,5…2,0 kgf • m).
** With fuel pump 363-40 or РР 6 М 10 Р 1f respectively for Д -260.2S engines
*** For Д -260.2S2 engines