Belarus 1523, Operating Manual

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BELARUS- 1523/1523В /1523.3 /1523В.3 Appendices
281
Adjusting parameters of the 363.1111005-40.01 fuel pump
(manufactured by the YAZDA Open Joint Stock Company) to be verified on the
bench
Description
Unit of
measurement
Value
1. Average fuel delivery per cycle over high-pressure pipelines,
at 100 rpm, at least mm
3
/cycle 140
2. Camshaft rated rotational speed rpm 1050±10
3. Average fuel delivery per cycle over pump high-pressure
pipelines, at rated rotational speed mm
3
/cycle 78...82
4. Fuel delivery irregularity over high-pressure pipelines, at
rated rotational speed, at least % 6
5. Rotational speed at commencement of governor control rpm 1075±10
6. Full automatic shut-off of fuel by the governor within the
speed range of rpm
1150, max
7. Average fuel delivery per cycle by pump sections at the
rotational speed of: 800 ±10 rpm
500 ±10 rpm
mm
3
/cycle 90…96
82…89
8. Pressure at pneumatic adjuster start/end action
commencement/termination of operation, at n = 500 rpm
kgf/cm
2
0.1...0.2/
0.2…0.3
9. Delivery per cycle, at rotational speed 500 rpm and no
supercharged pressure mm
3
/cycle 72…80
Note:
Checking the adjustment parameters as per items 1...7 should be performed with the
forced disengagement of the feedback pneumatic adjuster (i.e. the air pressure in the
pneumatic adjuster shall be 0.8...1.0 kgf/cm
2
)
.
11.2а. Adjusting parameters of the PP6M10P1f-3491 fuel pump
to be verified on the bench
Description
Unit of
measurement
Value
1. Fuel delivery onset by geometry – by plunger motion mm 3.5±0.05
2. Rated rotational speed of the pump shaft min
-1
1050
3. Camshaft rotational rated speed corresponding to the
engine idling min
-1
400
4. Fuel delivery irregularity by pump sections, at rated speed,
no more than % 6
5. Fuel delivery irregularity by pump sections, at minimum
idling, no more than % 35
6. Pump camshaft rotational speed corresponding to fuel shut-
off by the governor min
-1
1080…1090
7. Rotational speed corresponding to full shut-off of fuel
delivery through injectors min
-1
1160…1170
8. Fuel delivery per cycle, at pump camshaft rotational speed
of 100 rpm mm
3
/cycle 160±6
9. Fuel delivery per cycle at rotational speed of:
1050 rpm
800 rpm
500 rpm
90±2.0
92±2.5
75±3.6
Note: 1. The parameters of the fuel pumps should be performed using the injectors with the
Motorpal DOP 119S534 atomizers.
2. The parameters as to item 9 should be checked at the supercharge pressure of 0.5
kgf/cm
2
.