Toro Workman 3000 Series Service Manual page 332

Worm Bearing Preload Adjustment
1. Loosen and remove adjuster plug nut (Fig. 29, Item
25) (Fig. 41).
2. Turn adjuster plug (Fig. 29, Item 26) clockwise using
a spanner wrench until plug and thrust bearing are firmly
bottomed in housing (Fig. 42).
3. Scribe an index mark on the housing even with a hole
on adjuster plug.
4. Measure back 3/16 – 1/4 in. (5 – 6 mm) from first index
mark and scribe a second index mark (Fig. 43).
5. Rotate adjuster plug counterclockwise until hole is
aligned with second index mark.
6. Install adjuster plug nut (Fig. 29, Item 25).
7. Using an inch–pound torque wrench and 12 point
deep socket, measure torque required to turn stub shaft.
Take reading with handle of torque wrench near vertical
position (Fig. 44). Turn stub shaft to right stop, then back
1/4 turn at an even rate. Record torque reading. Torque
reading should be 4 – 10 in–lb (5 – 12 kgcm
juster plug may not be tightened properly or may have
turned during adjuster plug nut installation. Thrust bear ­
ings and races may also be damaged.
Steering, Brakes and Suspension
2
). If not, ad­
Page 7 – 30
Figure 42
Spanner
wrench
Adjuster plug
Figure 43
Figure 44
Figure 45
Workman 3000 Series