Service Manual

ProCore 864/1298Page 4 − 14Coring Head
7. If necessary, remove tines and tine holders from
stomper arm (see Operator’s Manual).
8. Remove rotolink damper components from stomper
arm as needed (see Rotolink Damper Assemblies in this
section).
Installation (Fig. 7 and 11)
1. If bearings were removed from stomper arm, install
retaining ring into groove in upper bore of stomper arm.
Make sure that retaining ring is properly seated in
groove. Position bearing spacer and press two (2) ball
bearings into stomper arm bore.
2. Install all rotolink damper components that were re-
moved during disassembly (see Rotolink Damper As-
semblies in this section).
3. Apply antiseize lubricant liberally to crankarm shaft
surface.
4. Raise stomper arm assembly up through coring
head frame. Slide stomper arm onto coring crankshaft.
5. Secure stomper arm to coring crankshaft in the re-
verse order of disassembly.
A. Torque grade 5, 5/8” cap screws (item 4, Fig. 11)
from 150 to 170 ft−lb (204 to 230 N−m).
B. Torque grade 8, 5/8” cap screws (item 1, Fig. 7)
from 210 to 230 ft−lb (285 to 311 N−m).
C. Torque 1/2” cap screws (item 6, Fig. 11) from 70
to 80 ft−lb (95 to 108 N−m).
6. Secure rotolink damper to coring head frame with
two (2) lock nuts and hardened D washers (Fig. 9) (see
Rotolink Damper Assemblies in this section).
7. After assembly, rotate coring crankshaft by hand to
make sure that no binding occurs.
8. If removed, install tine holders and tines to stomper
arm (see Operator’s Manual).
9. If removed, install coring head drive belt (see Coring
Head Drive Belt Installation in this section).
10.Install rear hood.
1. Coupling (#3 shown)
2. Iso mount (2 used)
3. Coupling (#2 shown)
4. Cap screw (2 used)
5. Coupling plate
6. Cap screw (4 used)
7. Lock nut (2 used)
8. Flat washer (2 used)
Figure 11
1
2
3
4
5
6
7
8
150 to 170 ft−lb
(204 to 230 N−m)
70 to 80 ft−lb
(95 to 108 N−m)
4