Servicing Castor Wheels And Bearings; Removing Cutter Blade - Toro 30373 Operator's Manual

Servicing Castor Wheels And
Bearings
The castor wheel rotates on a high–quality roller bearing.
Even after many hours of use, provided that the bearing
was kept well lubricated, bearing wear will be minimal.
However, failure to keep bearing lubricated will cause
rapid wear. A wobbly castor wheel usually indicates a
worn bearing.
1. Remove locknut from capscrew holding castor wheel
assembly between castor fork. Grasp castor wheel and
slide capscrew out of fork.
2. Remove bearing from wheel hub and allow spacer to
fall out (Fig. 30). Remove bearing from opposite side
of wheel hub.
3. Check the bearings, spacer and inside of wheel hub for
wear. Replace defective parts as required.
4. To assemble the castor wheel, push bearing into wheel
hub. Slide spacer into wheel hub. Push other bearing
into open end of wheel hub to captivate the spacer
inside the wheel hub (Fig. 30).
5. Install castor wheel assembly between castor forks and
secure in place with capscrew and locknut.
Figure 30
1. Bearing 2. Spacer
17

Removing Cutter Blade

The blade must be replaced if a solid object is hit, the
blade is out–of–balance or if the blade is bent. Always use
genuine Toro replacement blades to be sure of safety and
optimum performance. Never use replacement blades
made by other manufacturers because they could be
dangerous.
1. Raise cutting unit to highest position, shut the engine
off, and engage the parking brake.
2. Remove hairpin cotters and clevis pins securing
height-of-cut chains to rear of deck.
3. Rotate front of deck upward and insert latch rod into
front hole (service position) in latch plate.
4. Grasp end of blade using a rag or thickly padded
glove. Remove blade bolt, anti-scalp cup, and blade
from spindle shaft (Fig. 31).
Figure 31
1. Blade bolt
5. Install blade—sail facing (up) toward cutting
unit—with anti-scalp cup and blade bolt (Fig. 31).
Tighten blade bolt to 85–110 ft.-lb.
Warning
Do not try to straighten a blade that is bent, and
never weld a broken or cracked blade. Always use
a new blade to ensure continued safety
certification of the product.
2. Anti-scalp cup