Transmission Assembly - Toro Workman HDX Auto Service Manual

Transmission Assembly (Fig. 55)
1. Make sure that all internal transmission components
are thoroughly cleaned before transmission assembly.
Lubricate all transmission components with clean Dex-
ron VI automatic transmission fluid before installing
them into the transmission.
NOTE: Use a press to install new bearings onto trans-
mission shafts. All shaft bearings should be pressed only
on the inner bearing race during installation onto the
shaft. Also, make sure that bearings are pressed fully to
the shaft shoulder.
2. If any of the transmission shafts were disassembled,
install removed components onto the shafts in the re-
verse order of disassembly. During assembly, make
sure that retaining rings are installed fully into the
grooves of the shafts. Also, if the reverse and input
shafts were separated, make sure that the silent chain
is installed on these shafts before the 67 tooth gear, park
shift dog and bearing are installed on the reverse shaft
(Fig. 64).
3. Install new seals into transmission bores. The two (2)
output shaft seals (Fig. 55 item 57) should be installed
so they are flush with the cases. The input shaft seal
(Fig. 55 item 59) should be installed fully into the front
gear case so that the seal shoulder is flush to the case.
After seal installation, apply a light coating of multi- pur-
pose lithium grease onto seal lips and the area between
the seal lips.
4. Use suitable blocks to support the front gear case for

transmission assembly.

5. Position the front and rear output shaft assembly
(Fig. 55 items 35 and 38) to the reverse and input shaft
assembly (Fig. 55 items 37 and 50). Make sure that
gears on rear output and reverse shafts are properly
meshed.
6. With the help of a second person, carefully install
front and rear output shafts (Fig. 55 items 35 and 38)
along with reverse and input shafts (Fig. 55 items 37 and
50) as a complete assembly into the front gear case.
During installation, take care to not damage seals in gear
case. After installation, make sure that shafts rotate
without binding (Fig. 65).
7. Install shift shaft rail (Fig. 55 item 40) with attached
shift forks into transmission. Make sure that shift forks
are properly placed in grooves on park shift and engage-
ment dogs (Fig. 55 items 42 and 48) on reverse shaft
(Fig. 66).
Drive Train
1. Bearing
2. Park shift dog
2
1
1. Front and rear output
shaft assembly
1. Shift shaft rail
Page 4 - 56
2
3
1
Figure 64
3. 67 tooth gear
Figure 65
2. Reverse and input shaft
assembly
1
Figure 66
2. Reverse shaft
Workman HDX Auto
2