Toro Greensmaster
3150 - Piston Pump Crush Ring Replacement

Greensmaster 3150Hydraulic System Page 4 -- 66
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 48
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,coverplate orhousing isreplaced
during servicing of the pump, the old crush ring can not
be used to make sure of proper preload.
1. Remove crus h ring from the cover p late. Measure
thickness of crush ring.
2. Stack shims to the thickness of the crush ring.
3. Insert shimsinto thecover plateinthe samelocation
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.Torque capscrews to29 ft--lbs (39 N--m).
6. Checktorquerequiredto rotatecontrol shaft.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).