Ruggerini Ry100, Руководство по ремонту

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20.0
00497R0990 - 15-07-2000
D IE S E L
40
39
37
38
D D D D D
5) Insert the adjuster sleeve unit and plunger (L) into the
pump casing (A), making sure that the helical profile is
directed on a level with the return union with ball.
6) Fit in the adjuster block (M), matching the reference marks
applied during the demounting phase.
7) Tighten the plug (N) to a 0.5 to 0.6 Nm 0.5 to 0.6 Nm
0.5 to 0.6 Nm 0.5 to 0.6 Nm
0.5 to 0.6 Nm torque, locking it in
place with Loctite 290.
8) Insert the spring (O) and lower cap (P).
9) Compress the tappets in the various operating positions to
check that the adjuster sleeve (L) slides perfectly.
Resistance or jamming will make the engine to hunt during
operation.
10.6 Leak test
Plug the fuel return union and let air in through the fuelling
union at a pressure of 6 Kg/cm²
6 Kg/cm²
6 Kg/cm² 6 Kg/cm² 6 Kg/cm². Fully immerse the pump in
a receptacle containing diesel fuel for about 50 - 60 seconds
(fig. 38) and make sure that no bubbles appear when the
tappet is compressed 53.6 mm, corresponding to the bottom
dead center point during work.
NOTE: the position of the pump adjuster sleeve is of no
importance for this test.
10.7 Injector
Details of fig. 39:
1. Filter - 2. Fuel inlet union - 3. Fuel return union - 4. Nozzle holder
- 5. Calibration washer - 6. Spring - 7. Pressure rod - 8. Spacer - 9.
Nozzle - 9. Ring nut.
10.8 Injector inspection and calibration
1) Clean the nozzle holes with a thin steel wire (fig. 40) with
the following diameters:
11111
2 2 2 2 2 9 9 9 9 9 7 7 7 7 7 5 5 5 5 5
3 3
3 3 3
4 4
4 4 4
6 6
6 6 6
8 8
8 8 8
1 0 1 0
1 0 1 0 1 0
6 Kg/cm
air
G G G G G
F F
F F
F
E E
E E
E
B B
B B B
C C C C C
A A
A A A
H H
H H
H
L L
L L L
IIIII
M M M M M
O O
O O O
P P P P P
N N N N N
2) Mount the injector on the test bench (code 365.43, fig. 41).
Disconnect the pressure gauge and rapidly operate the
lever. The nozzle must make the characteristic "trilling"
sound and inject with a good atomizing action.
3) Connect the pressure gauge. Slowly depress the level in a
continuous way until injection occurs.
The injector needle must "open" at the pressure of 230 to
238 bar. Vary the washer shims (N° 5 fig. 39) to calibrate
in the correct way.
4) Leak test: Leak test: Leak test: Leak test: Leak test: operate the test bench lever until the gauge
pointer is 20 Kg/cm² below the injection pressure value.
Nozzle tightness is good if no fuel comes out within 10 sec.
5) Checking for leaks on the nozzle return phase: Checking for leaks on the nozzle return phase:
Checking for leaks on the nozzle return phase: Checking for leaks on the nozzle return phase:
Checking for leaks on the nozzle return phase: operate
the test bench lever until the gauge pointer is 20 Kg/cm²
RY85.0
RY85.1
Diameter of steel Diameter of steel Diameter of steel Diameter of steel Diameter of steel
wire (mm) wire (mm) wire (mm) wire (mm) wire (mm)
Engine Engine Engine Engine Engine
series series series series series
Number of Number of Number of Number of Number of
holes holes holes holes holes
Diameter of Diameter of Diameter of Diameter of Diameter of
holes (mm) holes (mm) holes (mm) holes (mm) holes (mm)
RY100
RY101
RY120
RY121
0.21 0.21
0.21 0.21 0.21
0.24 0.24
0.24 0.24
0.24
4 0.22
5 0.25