Toro 30799, Руководство оператора, Страница: 21 / 24

21
Servicing Castor Wheels And
Bearings
The castor wheel rotates on a high-quality roller bearing
and is supported by a spanner bushing. 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. Pull spanner bushing out of wheel hub.
1
6
2
2
5
4
3
6
Figure 35
1. Castor wheel
2. Capscrew & locknut
3. Bushing (2)
4. Spanner bushing
5. Roller bearing
6. Washer
3. Remove bushing from wheel hub and allow bearing to
fall out. Remove bushing from opposite side of wheel
hub.
4. Check the bearing, spanner and inside of wheel hub for
wear. Replace defective parts.
5. To assemble the castor wheel, push bushing into wheel
hub. Slide bearing into wheel hub. Push other bushing
into open end of wheel hub to captivate the bearing
inside the wheel hub.
6. Carefully slide spanner through the bushings and the
wheel hub.
7. Install castor wheel assembly between castor fork and
secure in place with capscrew, washers and locknut.
8. Lubricate castor wheel bearing through grease fitting,
using No. 2 general purpose lithium base grease.
Replacing Grass Deflector
1. Position machine on a level surface, raise cutting unit,
engage parking brake, be sure traction pedal is in
neutral position, PTO lever in OFF position, shut engine
OFF, and remove key from switch. Block cutting unit to
prevent it from falling accidentally.
2. Remove two capscrews, locknuts, and springs securing
deflector mounts to pivot brackets.
3. To remove the pivot brackets, remove carriage bolts and
nuts.
4. Reinstall pivot brackets on top of discharge opening
with carriage bolts and nuts. Head of carriage bolts
must be on inside of cutting unit.
5. Position deflector mounts on pivot brackets and secure
parts together with capscrews, locknuts and springs.
Both locknuts must face each other. Tighten locknuts
until they are flush against deflector pivots.
2
1
Figure 36
1. Grass deflector 2. Pivot springs
6. Lift deflector and allow it to drop to check spring
tension. Deflector must be held firmly in full downward
position by spring tension. Correct if necessary.
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. Block cutting unit to
prevent it from falling accidentally.
2. Grasp end of blade using a rag or thickly padded glove.
Remove blade bolt, lock washer, anti-scalp cup, and
blade from spindle shaft.