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ProCore 648Page 7 – 4Coring Head
Service and Repairs
Rotolink Dampers
1. Lock nut
2. Hardened D washer
3. Flange head screw
4. Stud
5. Bumper plate
6. Ca
p
screw
7. Lock nut
8. Hardened washer
9. Damper link
10. Bearing
11. Stomper arm
12. Flan
g
e nut
13. Cap screw
14. Rubber bumper
15. Rotolink damper
16. Damper standoff
17. Damper top spacer
Figure 4
150 to 170 ft–lb
(203 to 230 N–m)
1
2
3
4
7
6
5
10
8
9
12
13
14
11
17
16
15
9
10
10
12
13
16
FRONT
RIGHT
NOTE: The rotolink damper assemblies for all stomper
arms used on the ProCore 648 are identical.