Service Manual

ProCore 864/1298Page 4 − 30Coring Head

4. Position coring head to allow alignment of both sides

of H−frame to pivot shaft holes in coring head frame.

Slide pivot shaft through coring head frame and H−

frame. Secure pivot shaft to coring head frame with car-

riage screw and flange nut.

5. Position upper link assemblies to hitch frame and

coring head frame. Make sure that link assemblies (Fig.

31) have the groove installed in the same direction. Se-

cure upper link rod ends to machine with lock washer

and hex nut.

6. Install compression spring(s) to coring head frame:

A. With compression spring tool (see Special Tools)

compressing the spring, position upper end of spring

to hitch frame and then slide bottom of spring to cor-

ing head frame spring bracket.

B. Loosen lower nut on threaded rod to allow spring

(item 2) to extend.

C. Remove compression spring tool threaded rod,

washers and nuts from spring cups (item 1) and

spring.

D. If working on ProCore 864, repeat for second

spring.

7. Install pulley shield and front cover to machine (see

Cover Installation in the Service and Repairs section of

Chapter 3 − Chassis).

8. Install rear hood to machine.

9. Adjust aerator to desired depth setting.

1. Rod end (RH threads)

2. Rod end (LH threads)

3. Link groove

Figure 31

8.170” to 8.230”

(208 to 209 mm)