Toro Greens Aerator, Service Manual

Page: 115 / 130

Removal (Fig. 9)
1. Park the machine on a level surface, fully raise the
coring head and stop the engine. Remove the key from
the ignition switch.
2. Raise lock–up brackets on each side of machine and
lower coring head until it rests on brackets.
3. Unlatch and remove coring head cover.
4. Remove coring head chain (see Coring Head Chain
Removal in this section).
5. Remove both tine arms from crank arm assembly
that is to be removed (see Tine Arm Removal in this sec-
tion).
IMPORTANT: Matchmark bearing cap and coring
head frame bore before removing bearing cap.
Bearing caps must be installed in the same position
they were removed from.
6. Remove socket head screws and lock washers that
secure bearing cap to coring head frame. Remove bear-
ing cap from coring head frame.
7. Pull crank arm assembly from coring head frame.
8. If necessary, remove retaining clip(s) from bearing
cap and/or coring head frame.
Installation (Fig. 9)
1. Make sure that bores of coring head frame and bear-
ing caps are free of nicks, burrs or corrosion. If neces-
sary, use 320 grit emery cloth to remove imperfections
in bores. Clean bores thoroughly before installation of
crank arms.
2. If any retaining clips were removed, secure retaining
clips with lock washer and socket head screw. Make
sure that clips are perpendicular to bearing bore prior to
tightening screw.
3. Position crank arm assembly to coring head frame.
Make sure that bearing with retaining ring is placed at re-
taining clips on the outer coring head frame plate (Fig.
10).
IMPORTANT: Bearing caps must be installed in the
same position they were removed from.
4. Install bearing cap noting matchmark made during
removal to ensure that bearing cap is properly posi-
tioned. Secure bearing cap to coring head frame with
lock washers and socket head screws. Torque screws
from 20 to 35 ft–lb (27 to 47 N–m).
5. Install both tine arms to crank arm assembly that was
removed (see Tine Arm Installation in this section).
IMPORTANT: When installing coring head chain,
make sure that alignment pins are used to properly
time the crank arm assemblies.
6. Install coring head chain (see Coring Head Chain
Installation in this section).
7. After assembly, rotate coring crankshaft by hand to
make sure that no binding occurs.
8. Install coring head cover.
9. Lower coring head lock–up brackets before machine
use.
1
3
2
3
Figure 10
1. Crank arm 3. Retaining clip
2. Outer frame plate
Coring Head
Greens Aerator Page 8 – 9 Coring Head