Toro ProCore 648 User manual

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All Rights Reserved
Printed in the USA
W2006 by The Toro Company
8111 Lyndale Avenue South
Bloomington, MN 55420-1196
Rear Roller Kit
ProCore)648 Aerator
Model No. 09234
Form No. 3355–919 Rev B
Installation Instructions
Installation
1. Position the machine on a level surface, raise the
coring head, stop the engine, engage the parking brake
and remove the key from the ignition.
2. Secure the coring head service latch.
3. Remove the capscrews, washers and nuts securing the
side shields to the coring head (Fig. 1).
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2
Figure 1
1. Side shield 2. Coring head
4. Mount the appropriate (R.H. or L.H.) side plate to the
coring head with 3/8 x 1 in. flange head capscrews and
flange nuts. Position side plate as shown in figure 2.
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Figure 2
1. Side plate (RH shown)
5. Insert a spring washer onto each end of the roller shaft
(Fig. 3).
6. Insert a roller arm onto each end of the roller shaft.
Insert a flat washer onto the right hand roller shaft.
Secure the roller shafts to the roller arms with roller
shaft screws. Thread a grease fitting into each roller
shaft screw, if not previously assembled (Fig. 3).
7. Insert the roller scraper mounting tabs into the slots in
each scraper arm (Fig. 3).
8. Install the scraper arms to the roller arms with 3/8 x
1–1/4” carriage bolts and 3/8 flange nuts (Fig. 3).
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5
6
4
8
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Figure 3
1. Roller shaft
2. Spring washer
3. Roller arm
4. Flat washer (RH side only)
5. Roller shaft screw
6. Grease fitting
7. Roller scraper
8. Scraper arm
Note: The roller contacts the turf a few inches behind the
tines and turf hold downs.

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9. Align the roller arm mounting holes with the side plate
mounting holes (Fig. 4).
10. Secure the roller arms to the side plates with 5/8 x 2”
capscrews, .656 x 1.312 washers, flange bushings and
5/8 locknuts (Fig. 4).
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2
5
3
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Figure 4
1. Roller arm
2. Side plate
3. Capscrew
4. Flat washer
5. Flange bushing
11. Secure the spring assembly to the side plate and the
roller arm with spring brackets, 3/8 x 1” carriage bolts
and 3/8 flange nuts (Fig. 5). Make sure the tabs on the
spring trunnions fit into the slots in the mating parts.
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2
3
Figure 5
1. Spring assembly
2. Spring bracket
3. Spring trunnion
12. Grease each roller fitting with No. 2 Lithium Based
grease, approximately 1/2 oz. (15 ml) per end..
13. Loosen the lower nuts securing the scraper arms to the
roller arms (Fig. 6). Adjust the roller scraper until
there is approximately .060” clearance between the
roller and the scraper. Tighten the nut.
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Figure 6
1. Scraper adjusting nuts 2.
14. Tighten all the fasteners.
Note: The spring is pre–adjusted at the factory but to
insure proper down pressure on the roller make sure the
compressed spring length is 15.00 inches. Adjust as
required.
Operating Tips
•Shortening the spring adjustment does not increase the
operating down pressure. It will raise the transport
height and delay the contact with the ground when
engaging the coring head.
•Hole quality can be dependent on many factors. Refer
to Operating Tips in the ProCore 648 Operator’s
Manual for additional suggestions.