Toro 3200, Service Manual

Page: 120 / 274

Rev. C
Greensmaster 3200/3200–D Hydraulic System Page 5 – 48
F. Compress spring by tightening the nut onto the
cap screw. Install the retaining ring into the piston
block.
G. Unscrew the nut and remove washer and cap
screw from the piston block.
H. Install spider pivot onto the three pins, and place
the spider on the spider pivot.
I. Insert piston assemblies through the spider and
into the piston block with the piston shoes resting on
the spider.
10. Set rotating kit assembly (11) on a working surface
with the piston shoes facing up. Insert shaft (2) through
the rotating kit assembly with the flanged end of the
housing assembly (29) up. Position rotating kit assem-
bly into the housing assembly.
11. Make sure piston block and shaft (2) splines are
aligned. Make sure piston block is engaged fully so the
piston shoes are in contact with the camplate (10). Make
sure all parts are in their proper position before pro-
ceeding to the next step.
12. Hold rotating kit assembly (11) in place, and clamp
housing assembly (29) with the flange end down into a
vise with protected jaws. Install gasket (12) and two
dowel pins (15) into the housing assembly (29).
13. If necessary, press new bearing (14) or roll pin (24)
into backplate assembly (16) to the proper dimension
shown (Fig. 24). Bearing should be installed with num-
bered end outward. Roll pin should be installed with split
oriented away from the bearing.
14. Install seat (20) and spring (19) into backplate as-
sembly (16). Install new O–ring (17) and plug (18) into
the backplate assembly. Torque plug from 95 to 105 ft–lb
(13.1 to 14.5 kg–m).
15. Install new O–rings (36 and 37) onto dump valve as-
sembly (21). Install dump valve assembly into the back-
plate assembly (16). Torque valve assembly from 27 to
30 ft–lb (3.7 to 4.1 kg–m).
16. Install charge relieve valve and bleed–off valve into
back plate assembly (see Fig. 23).
17. Coat valve plate (13) with light coat of petroleum jel-
ly on the steel side. Align the valve plate to the roll pin
(24) on the backplate assembly (16). Install steel side of
the valve plate to the backplate.
18. Install backplate assembly (16) to the housing as-
sembly (29). Make sure gasket (12), valve plate (13),
and dowel pins (115) stay in place.
19. Secure backplate assembly (16) to the housing as-
sembly (29) with cap screws (22 and 23). Torque cap
screws from 17 to 20 ft–lb (2.3 to 22.8 kg–m).