Service Manual

ProCore 864/1298 Page 3 − 11 Chassis
Removal (Fig. 7)
1. Position aerator on a firm, level surface and discon-
nect aerator from tractor.
2. Support subframes, coring frames and hitch frame
assemblies to prevent them from falling or shifting unex-
pectedly.
3. Remove front covers (see Front Covers (ProCore
1298) Removal in this section).
4. Disconnect both coring head driveshafts from gear-
box (see Driveshaft Removal in the Service and Repairs
section of Chapter 4 − Coring Head). Position and sup-
port driveshafts away from hitch frame.
5. Remove gearbox from hitch frame (see Gearbox Re-
moval in the Service and Repairs section of Chapter 4
− Coring Head).
6. Remove lock nuts that secure pivot shafts to sub-
frames and hitch frame.
7. Make sure that aerator frame sections are sup-
ported.
8. Slide both pivot shafts from subframe and hitch
frame. Locate and retrieve thrust washer (item 16) from
each side of subframe.
9. Lift subframe assemblies from hitch frame. Remove
hitch frame.
10.Inspect bushings in subframe for wear or damage
(Fig. 8). Replace bushings if necessary.
Installation (Fig. 7)
1. Position hitch frame to subframe assemblies.
2. Connect both subframes to hitch frame:
A. Place thrust washer on each side of subframe
pivot tube.
B. Slide pivot shaft through hitch frame, both thrust
washers and subframe pivot. Make sure that roll pin
in pivot shaft is positioned in frame reliefs.
C. Install lock nut onto pivot shaft. Tighten lock nut
until the total clearance between the subframe and
hitch frame is from 0.010” to 0.030” (0.3 to 0.7 mm).
3. Install gearbox to hitch frame (see Gearbox Installa-
tion in the Service and Repairs section of Chapter 4 −
Coring Head).
4. Connect both coring head driveshafts to gearbox
(see Driveshaft Installation in the Service and Repairs
section of Chapter 4 − Coring Head).
5. Install front covers (see Front Covers (ProCore
1298) Installation in this section).
6. Lubricate grease fittings on subframe pivot tubes.
1. Subframe 2. Flange bushing
Figure 8
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2
Chassis