Nozzle Service - Toro Workman 3000 Series Service Manual

Nozzle Service

IMPORTANT: When servicing the injection nozzles
make sure that the engine and fuel delivery pipes
are clean to prevent dirt from entering cylinder or
nozzle. Do not mix components of one nozzle with
the other.
Nozzle Removal and Disassembly
1. Disconnect the injection pipes and fuel return pipe.
2. Remove the injector nozzle from the cylinder head.
NOTE: Further disassembly of the nozzle is not required
for the nozzle to be tested. (See Nozzle Tests in the
Testing section of this chapter.)
3. Secure the nozzle holder in a vise that has aluminum
or brass jaw plates. To prevent deformation do not clamp
the vise onto the retaining nut (Fig. 49).
4. Remove the retaining nut, shim washer, spring, pin,
and distance piece.
6. Remove the nozzle assembly from the retaining nut.
If it is difficult to remove, tap it lightly with a rubber or
wooden mallet. IMPORTANT: Be careful not to hit or
damage the protruding tip of the nozzle needle valve.
Workman 3300-D/4300-D
1. Body
2. Shim washer
3. Pressure spring
4. Pin
Page 4 - 55
Figure 49
5. Distance piece
6. Nozzle assembly
7. Retaining nut
Liquid Cooled Diesel Engine