Upper Steering Shaft - Toro 500 EFI Service Manual

4. Check boot clamps for security.
5. Check that the steering assembly operates smoothly
with no binding from full-left to full-right position.
6. Inspect for grease seepage from the steering assembly.

NOTE: The steering assembly (rack and pinion) is
not repairable and must be replaced as an assembly;
however, the tie rods and boots are replaceable.
INSTALLING
1. From the left side, install the steering assembly (rack
and pinion) to the frame assembly and secure with
two cap screws. Tighten to 35 ft-lb.
2. Place the tie rod ends into the knuckles and secure
with the castle nuts (coated with red Loctite #271).
Tighten to 30 ft-lb; then install new cotter pins.

NOTE: If the slots in the castle nut are not aligned
with the hole in the tie rod end, tighten until the cotter
pin can be installed.
3. Install the wheel; then using a crisscross pattern,
tighten the wheel nuts in 27 N-m (20 ft-lb) incre-
ments to the final torque shown in the table below.
Steel Wheel
Aluminum Wheel (Black Nuts)
Aluminum Wheel (Chrome Nuts)

Upper Steering Shaft

REMOVING
1. Remove the dashboard (see Dashboard in this sec-
tion).
2. Remove the four cap screws and nuts securing the
steering shaft housing to the steering support; then
remove the cap screw securing the intermediate shaft
yoke to the steering shaft.
PR785
3. Remove the steering shaft housing and shaft from the
steering support and intermediate shaft.

NOTE: Any time steering components are disas-
sembled, all connecting components should be
marked for proper alignment during assembling.
INSPECTING
1. Inspect the steering wheel shaft for excessive wear.
2. Check for worn splines, cracks, or damaged threads.
3. Roll the steering wheel shaft on a flat surface to
54 N-m (40 ft-lb)
check for bends.
80 N-m (60 ft-lb)
4. Inspect the nylon bushings in the steering shaft hous-
108 N-m (80 ft-lb)
ing for cracking or excessive wear.
INSTALLING
1. Install the steering shaft housing with steering shaft and
connect the steering shaft and intermediate shaft first;
then slide the housing into place on the steering support.
2. Secure the steering shaft housing to the frame with
four cap screws and nuts. Tighten the 6 mm nuts to 8
ft-lb and the 8 mm nuts to 20 ft-lb.
PR764A
PR765A
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