Jx95 Model - Calibration Data For Bosch Injection Pumptype Ve 4/12 F 1250 L 952 - 504042718 - Case HI JX60 Service Manual

14
JX95 MODEL - - CALIBRATION DATA FOR BOSCH INJECTION PUMP
ASSEMBLY DATA
Pump timing on engine: delivery start 0
T.D.C. of cylinder 1 on compression stroke.
Plunger pre--lift for timing on engine: 1 mm from BDC
(with tools 380000228 -- 380001601).
Delivery union of the pump corresponding to cylinder
no. 1: marked with letter A.
ASSEMBLY DIMENSIONS
SYMBOL K A
mm 3.64 to 0.98 to
3.76 1.02
CALIBRATION TEST CONDITIONS
Plunger pre--lift from B.D.C.: mm --
rpm: 1250
1100 rpm
4. FULL- -LOAD DELIVERY WITH BOOSTER PRESSURE
rpm: 900 LDA pressure: kPa 100
5. FULL- -LOAD DELIVERY WITHOUT BOOSTER PRESSURE
rpm: 500 LDA pressure: kPa 0
rpm: 350 LDA pressure: kPa 0
rpm: 1250 LDA pressure: kPa 100
rpm: 100
LDA pressure
Rev/min
Advance stroke
LDA pressure
Rev/min
Internal pressure supply:
Rev/min
LDA pressure
Backflow for 10 sec.
Note: The values shown above in brackets must be used for checking purposes only.
6- 62720 - - 09 - - 2006
SECTION 10 - - ENGINE - - CHAPTER 1
TYPE VE 4/12 F 1250 L 952 - - 504042718
o o
± 0.5
before
MS ya yb
0.6 to 36.5 to 41.3 to
1.0 38.5 46.7
1. START OF DELIVERY
Pump rotation (viewed from drive side):
anticlockwise
2. ADVANCE REGULATOR STROKE
LDA pressure: kPa 100
3. FUEL SUPPLY PUMP PRESSURE
LDA pressure: kPa 100
Delivery per 1000 shots: cm
Delivery per 1000 shots: cm
6. SPREAD GOVERNOR AT IDLE SPEED
Delivery per 1000 shots: cm
7. SPREAD GOVERNOR AT MAXIMUM SPEED
Delivery per 1000 shots: cm
8. DELIVERY AT STARTING SPEED
9. INJECTION ADVANCE PROGRESSION
kPa
mm
10. TRANSFER PRESSURE PROGRESSION
kPa
bar
11. BACKFLOW
kPa
l/h
Test bench conforming to ISO 4008/1 .../2
Injectors conforming
(1.688.901.027 with calibrated pad ∅ 0.5 mm)
(0.0197 in.).
Injector pressure setting 250 to 253 bar (3625.925 to
3741.9546 psi).
Fuel supply pressure:
0.35 ±0.05 bar (5.0763 ± 0.7252 psi).
Delivery pipes (conforming to ISO 4093.2):
6 x 2 x 450 mm (0.2362 x 0.787 x 17.7165 in.).
Graduate drain time : 30".
Test liquid: ISO 4113 at a temperature of 55
(131° ± 33.8°F).
Injection order:1--3--4--2
Advance stroke: mm 2.2 to 3.4
Internal pressure: bar 6.5 to 7.9
3
75.5 to 80.5 Spread: cm
3
66.0 to 72.0 Spread: cm
3
8 to 23 Spread: cm
3
66.0 to 72.0
Delivery per 1000 shots: cm
1100
1.4 to 2.6 2.2 to 3.4
500
4.1 to 5.5 6.5 to 7.9
500
100
18 to 32
to ISO 7440--A61
o
± 1
3
≤ 3.5
3
--
3 ≤ 5.5
3
Spread: cm --
3
75 to 115
100
1250
100
1100 --
--
1250
100
21 to 39
(continued)
--
o
C