Toro 04470 Service Manual

Greensmaster 3250--DHydraulic System Page 4 -- 68
Piston Pump Crush Ring Replacement
1. Crush ring
2. Shims
3. Cover plate
4. Housing
5. Swash plate (control shaft)
6. Bearing cone
7. Bearing cup
8. O--ring
9. Washer (3 used)
10. Cap screws (3 used)
Figure 46
v
29 ft--lb
(39 N--m)
6
4
8
7
2
3
9
10
1
5
NOTE: The shims replace the crush ring in the cover
plate.Ifthecamplate,coverplateorhousingisreplaced
during servicing of the pump, the old crush ring can not
be used to make sure of proper preload.
1. Remove crush ring from the cov er plate. Measure
thickness of crush ring.
2. Stack shims to the thickness of the crush ring.
3. Insert shims intothecoverplateinthe same location
that the crush ring was removed from.
4. Assemble housing sub assembly consisting of the
housing, camplate, bearing cone, bearing cup and cov-
er plate (see Eaton, Medium Duty Piston Pump, Repair
Information,Model70160VariableDisplacementPiston
Pump at the end of this chapter).
5. Install washers and cap screws to the cover plate
and housing.Torquecap screws to 29 ft--lbs (39 N--m).
6. Checktorquerequiredto rotatecontrolshaft.Torque
should be 5to15in--lbs(0.6to1.7N--m).
A. If torque is too low, add additional shims and re-
peat steps 3 through 6 until the specified torque is
achieved.
B. If torque is too high, remove shims and repeat
steps 3 through 6 until the specified torque is
achieved.
7. Complete assembly of thepump(seeEaton,Me-
dium Duty Piston Pump, Repair Information, Model
70160VariableDisplacementPistonPumpattheendof
this chapter).

Toro 04470 Specifications

General

Brand	Toro
Model	04470
Category	Lawn Mower
Language	English