Toro ProCore SR Series Service Manual page 21

4. Loosen two (2) set screws that secure each bearing
locking collar to roller shaft (Fig. 3).
NOTE: On ProCore SR54--S and SR70--S aerators,
the rear roller scraper is secured to the frame with cap
screws that also secure the rear roller flange bearings.
When removing the rear roller on these aerators, the
roller scraper will be removed as well.
5. Remove cap screws and lock nuts that secure both
flange bearings (item 2) to aerator frame.
6. Start engine on tractor. Slowly raise aerator while al-
lowing roller to remain on the ground. Stop tractor en-
gine and remove key from the ignition switch. Support
raised aerator to prevent it from lowering unexpectedly.
CAUTION
To prevent personal injury, make sure that roller
is supported as it is removed from the machine.
7. Remove roller with flange bearings from under ma-
chine.
8. Slide bearings from roller shaft ends.
Roller Installation (Fig. 1)
1. Clean roller shaft ends and apply antiseize lubricant
to shaft ends. Slide bearings onto roller shaft ends. Do
not tighten set screws in bearings at this time.
CAUTION
To prevent personal injury, make sure that roller
is supported as it is installed to the machine.
2. Position roller with flange bearings under raised aer-
ator.
NOTE: Drop speed can be adjusted on the tractor. Re-
fer to the Tractor Operator's Manual for additional infor-
mation.
3. Start engine on tractor. Slowly lower aerator to posi-
tion aerator frame to roller assembly. Stop tractor engine
and remove key from the ignition switch.
NOTE: On ProCore SR54--S and SR70--S aerators,
make sure to install the rear roller scraper when instal-
ling the flange bearings.
ProCore SR Series
4. Align holes in bearing flanges with holes in roller boot
on aerator frame. Orientate bearing so that grease fit-
tings point to front of aerator. Secure both flange bear-
ings to frame with cap screws and lock nuts.
5. Check that roller is free to rotate and no binding ex-
ists. Center roller between bearings.
6. Apply Loctite #242 (or equivalent) to threads of bear-
ing set screws. Tighten two (2) set screws to secure
each bearing locking collar to roller shaft ends.
7. Lubricate grease fittings on bearings.
PROCORE SR54- -S SHOWN
1
8
6
4
5
FRONT
1. Back roller
2. Main roller
3. Cap screw
4. Flange bearing
Loctite #242
1
1. Bearing
2. Bearing housing (2 bolt)
Page 3 - - 3
7
3
8
3
5
4
Figure 2
5. Lock nut
6. Double roller boot
7. Aerator frame
8. Roller scraper
4
3
Figure 3
3. Set screw (2 used)
4. Grease fitting
Chassis
2
2