Toro Groundsmaster 300 Series Service Manual page 73

6. Install the upper spring seat and spring.
7. Assemble the lower spring seat to the plunger. Insert
the plunger into the barrel with the side of the plunger
collar marked "L" towards the control rack.
NOTE: the collar and pinion are designed to prevent
incorrect installation.
8. Insert the tappet carefully to avoid dropping the shim.
Align the tappet guide hole with the hole for the tappet
guide pin. Install the guide pin locking plate and guide
pin. Rotate the guide pin to lock its edge under the lip
on the pump housing and lock the pin by bending the
plate tab.
9. Torque the Delivery Valve Holder to 28.9 - 36.2 ft-lb
(4 - 5 KgM). Ensure that the control rack slides smoothly,
with little resistance. Sliding force should be 1.75 oz. (50
g) or less. If the rack binds, it is assembled incorrectly
or parts are dirty, and it must be reassembled or
cleaned.
10. Repeat the procedure for the other remaining cylin-
ders.
11. Install the injection pump to the cylinder block. Make
certain that the same number and size shims that were
under the pump when removed are replaced correctly.
12. Connect the Tie Rod and Tie Rod Retaining Spring
to the Control Rack.
13. Push the control rack to the high speed position (left)
and reinstall the tie rod cover using a new cover gasket.
14. Reassemble the fuel return line and delivery pipes.
15. Bleed the air from the fuel system. Refer to "Bleeding
Air From Fuel System,".
®
Groundsmaster 300 Series
1. E-ring
2. Ungleich set spring
3. Ungleich set plate
4. Pump housing
5. E-ring
6. Return spring
7. Smoke set plate
8. Air breather screw
9. Washer
10. Hollow screw
11. Pump element ass'y
12. Delivery valve ass'y
13. Gasket
14. Delivery valve spring
Page 4 - 43
Figure 50
15. O-ring
16. Delivery valve holder
17. Bolt/washer
18. Adjusting plate
19. Tappet guide pin
20. Plate
21. Control rack
22. Plunger control sleeve
23. Upper spring seat
24. Pump plunger spring
25. Lower spring seat
26. Shim plate
27. Tappet
Fuel System Service