Toro 30839, Operator'S Manual, Page: 57 / 60

Checking the Blade Stopping Time
Service Interval: Before each use or daily
The blades of the cutting deck should completely stop
in approximately 5 seconds after you shut down the
cutting deck.
Note:
Ensure that the decks are lowered onto a
clean section of turf or hard surface to avoid thrown
dust and debris.
To verify the stopping time, have a second person
stand back from the deck at least 6 m (20 ft) and
watch the blades on 1 of the cutting decks. Shut
the cutting decks down and record the time that it
takes for the blades to come to a complete stop. If
the time is longer than 7 seconds, the braking valve
needs adjustment; contact your Toro Distributor for
assistance in making this adjustment.
Servicing the Front Roller
Inspect the front roller for wear, excess wobble, or
binding. Service or replace the roller or components if
any of these conditions exist.
Disassembling the Front Roller
1. Remove the roller-mounting bolt ( Figure 75 ).
g031649
Figure 75
1. Bearing 3. Front roller
2. Mounting bolt 4. Bearing spacer
2. Insert a punch through the end of the roller
housing and drive the opposite bearing out
by alternating taps to the opposite side of
inner-bearing race.
Note:
There should be a 1.5 mm (0.06 inch) lip
of inner race exposed.
3. Push the second bearing out in the press.
4. Inspect the roller housing, bearings, and bearing
spacer for damage (
Figure 75 ).
Note:
Replace damaged components and
assemble the front roller.
Assembling the Front Roller
1. Pressing on the outer race only or equally on the
inner and outer race, press the first bearing into
the roller housing (
Figure 75 ).
Note:
Press on the outer race only or equally
on the inner and outer race.
2. Insert the spacer ( Figure 75 ).
3. Pressing on outer race only or equally on the
inner and outer race, press the second bearing
into the roller housing until it contacts the spacer
(
Figure 75 ).
4. Install the roller assembly into the deck frame.
Important:
Securing the roller assembly
with a gap larger than 1.5 mm (0.06 inch)
creates a side load on the bearing and can
lead to premature bearing failure.
5. Verify that there is no more than a 1.5 mm (0.06
inch) gap between the roller assembly and the
roller-mount brackets of the deck frame.
Note:
If there is a gap over 1.5 mm (0.06 inch),
install enough 5/8-inch diameter washers to take
up the slop.
6. Torque the mounting bolt to 108 N∙m (80 ft-lb).
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