Jx90 Model - Calibration Data For Bosch Injection Pumptype Ve 4/12 F 1250 L 982 - 504042214; Tools - Case HI JX60 Service Manual

12
JX90 MODEL - - CALIBRATION DATA FOR BOSCH INJECTION PUMP
ASSEMBLY DATA
Pump timing on engine: delivery start 1
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 1.4 to
3.76 1.5
CALIBRATION TEST CONDITIONS
Plunger pre--lift from BDC:
mm --
rpm: 1250
rpm: 1250
rpm: 900
rpm: 375
rpm: 1250
rpm: 100
Rev/min
Advance stroke
Rev/min
Internal pressure
Rev/min
Backflow
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 982 - - 504042214
o o
± 0.5
before
MS ya yb
0.7 to 0.9 37.9 to 39.3 to
39.9 44.7
1. START OF DELIVERY
Pump rotation (viewed from drive side):
anticlockwise
2. ADVANCE REGULATOR STROKE
3. FUEL SUPPLY PUMP PRESSURE
4. FULL LOAD DELIVERY
Delivery per 1000 shots: cm
5. SPREAD GOVERNOR AT IDLE SPEED
Delivery per 1000 shots: cm
6. SPREAD GOVERNOR AT MAXIMUM SPEED
Delivery per 1000 shots: cm
7. DELIVERY AT STARTING SPEED
8. INJECTION ADVANCE PROGRESSION
mm
9. TRANSFER PRESSURE PROGRESSION
bar
10. BACKFLOW
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).
Advance stroke: mm 2.4 to 3.6
Internal pressure: bar 8.7 to 10.1
3
77.5 to 82.5
3
5.5 to 19.5
3
69.5 to 75.5
Delivery per 1000 shots: cm
1000
0.2 to 1.0
1250
8.7 to 10.1 3.6 to 5.0
400
15 to 29
to ISO 7440--A61
Injection order:1--3--4--2
3 ≤ 3.5
Spread: cm
3
≤ 4.5
Spread: cm
Spread:--
3
80 to 120
1250
2.4 to 3.6
400
1250
22 to 40
--
o o
± 1
C
(continued)