Lombardini LDW 502 Workshop Manual page 69

COMPILER TECO/ATL
REG. CODE
1-5302-351
UNIT INJECTOR REASSEMBLY (CONT.)
With reference to the previous frame, and the exploded view of the
unit injector on the previous page, continue to introduce the plunger
into the unit injector, while gently rotating rack lever (8) back and
forth until index (M) can be engaged with the rack lever (8).
NOTE: If the plunger is accidentally installed incorrectly positioned
with respect to the helix location, the engine will not operate.
BARREL AND PLUNGER DETAIL- EARLY UNIT INJECTORS
(TYPICAL)
Component
Details
1 Plunger
2 Plunger End View
3 Barrel
4 Retardation Notch
5 Helix
BARREL AND PLUNGER DETAIL- (TYPICAL) CURRENT UNIT
INJECTORS (EXAMPLE- 6590-285)
Component
Details
1 Plunger
2 Plunger End View
3 Barrel
4 Retardation Notch
5 Helix
For LDW 702,1003,1204/T,1404 CURRENT UNIT INJECTORS
(EXAMPLE- 6590-290)
A = 6.5 mm (nominal)
UNIT INJECTOR TEST STAND SPECIFICATIONS
1 Rack lever in stop or no delivery position
2 Rack lever in maximum delivery position
MODEL N° DATE OF ISSUE
50563 04.90
FUEL SYSTEM
A = 5.5 mm (nominal)
B = 2.00/2.03 mm (Inlet Port)
C = 1.50/1.53 mm (Bypass)
D = 10.00 mm
E = 9.6 mm
F = 0.7 mm
A = 6.0 mm (nominal)
B = 1.50/1.53 mm (Inlet Port)
C = 1.50/1.53 mm (Bypass)
D = 9.965/10.035 mm
E = 9.565/9.635 mm
F = 0.9 mm
DATE ENDORSED
04
REVISION
15.11.99
VI
Dimensional
Details
Dimensional
Details
69