Toro Workman 3000 Series Service Manual page 203

Injection Pump Disassembly
IMPORTANT: Do not mix the delivery valves, deliv­
ery valve seats, plungers or plunger barrels from
one cylinder to another. These are parts are
"matched sets". Handle these parts carefully. Place
the parts in a container of clean diesel fuel to pre­
vent corrosion.
1. Remove the stopper holder. Remove the delivery
valve holder (Fig. 46).
2. Remove the valve spring, delivery valve and o-ring.
Remove the gasket and valve seat.
1. Union collar
2. Air vent screw
3. Delivery valve holder
4. Valve spring
5. Holder stopper
6. Housing
7. O-ring
Workman 3300-D/4300-D
3. Remove the tappet roller and stopper pin. Remove
the tappet and adjusting shim.
4. Remove the lower seat from the plunger. Remove the
plunger spring and upper seat
5. Remove the two screws securing the bracket to the
pump housing. Remove the control rack.
IMPORTANT: DO NOT loosen the adjusting screws
on the control rack for each cylinder. If these parts
are removed, it is necessary to measure fuel injec­
tion quantity with a pump tester and cam box.
7. Remove the sleeve and plunger. Remove the plunger
barrel upward from the pump housing.
Figure 46
8. Delivery valve
9. Gasket
10. Valve seat
11. Plunger barrel
12. Sleeve
13. Upper seat
14. Plunger spring
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15. Plunger
16. Lower seat
17. Adjusting shim
18. Tappet roller
19. Pin
20. Control rack
21. Bracket
Liquid Cooled Diesel Engine