Assembling Transmission Sections - Toro Groundsmaster 300 Series Service Manual

Assembling Transmission Sections (Fig. 31, 32)
1. Apply transmission oil on both sides of the center
section. Place the gaskets in position against the pump
and motor sides of the center section.
NOTE: The transmission oil should hold the gaskets
against the sides of the center section.
2. Identify the motor side of the center section by locat-
ing the two slotted directional charge check plugs. Apply
transmission oil on the surfaces of the motor valve plate
and install the recessed groove side of the motor valve
plate against the side of the center section. The slot in
the valve plate must fit over the locating pin. Make sure
that the center of the valve plate pilots on the needle
bearing extending out of the center section.
IMPORTANT: The motor valve plate and the pump
valve plate are not interchangeable. Identify the
motor valve plate by the four V-notches in the kidney
shaped grooves. The pump valve plate has two
V-notches in the grooves.
3. Apply transmission oil on the surfaces of the pump
valve plate and install the recessed-groove side of the
pump valve plate against the pump side of center sec-
tion. The slot in the valve plate must fit over the locating
pin. Assure that the center of the valve plate pilots on
the needle bearing extending out of the center section.
4. Assemble the center section between the motor
housing and the pump housing. The line scribed or
painted on the motor housing, center section, and pump
housing must line up to assure the correct assembly of
the parts.
NOTE: When assembling the three main sections,
make sure the gaskets, valve plates, and cylinder block
assemblies remain in place.
5. Use new capscrews and special flat washer when
assembling the transmission sections. Lubricate the
four cap screws with oil and secure the three main
sections together. Alternately, and in gradual incre-
ments, tighten the cap screws to 34 - 37 ft-lb.
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Groundsmaster 300 Series Page 5 - 39
Figure 31
Figure 32
Repairs