Service Manual

ProCore 864/1298Page 4 − 12Coring Head
Stomper Arms
1. Cap screw
2. Flat washer
3. Ball bearing (2 used per arm)
4. Retaining ring
5. Bearing spacer
6. Stomper arm
7. Crankshaft driven pulley
8. Bearing housing assembly
9. Coring head frame
10. Square key
11. Coupling
12. Crankarm
Figure 7
FRONT
RIGHT
PROCORE 1298 STOMPER ARMS #1 AND #2 SHOWN
210 to 230 ft−lb
(285 to 311 N−m)
9
10
12
11
210 to 230 ft−lb
(285 to 311 N−m)
ANTISEIZE
LUBRICANT
2
3
4
1
5
1
2
3
7
6
8
6
1
2
3
4
3
5
NOTE: All stomper arms used on ProCore 864 and
1298 aerators are identical. Coring crankshaft positions
are identified based on their relationship with the crank-
shaft driven pulley. The #1 position is at the pulley side
of the coring crankshaft (Fig. 8).
IMPORTANT: Before disassembling the coring
crankshaft, label location of components that are to
be removed. Correct component location and orien-
tation are necessary for proper aerator operation.
1. Crankshaft driven pulley
2. #1 position (ProCore 1298 LH coring head shown)
3. #6 position (ProCore 1298 LH coring head shown)
Figure 8
2
3
1