Removal (Fig. 17)
Position aerator on a firm, level surface. If attached
1
1.
to tractor, disengage PTO, apply tractor parking brake,
stop engine and remove key from the ignition switch.
2.
Remove rear hood.
WARNING
3
As crankshaft components are removed from
machine, the crankshaft will become out of bal-
ance and may rotate quickly, creating pinch
points and potential for personal injury. Be cau-
tious when disassembling the coring crankshaft.
2
Figure 18
1.
2.
3.
Crankshaft driven pulley
#1 position (ProCore 1298 LH coring head shown)
#6 position (ProCore 1298 LH coring head shown)
3.
If bearing housing for #1 and #2 stomper arms is to
be removed, remove coring head drive belt (see Coring
Head Drive Belt Removal in this section).
2
4.
of bearing housing that is to be removed (see Stomper
Arm Removal in this section).
Remove stomper arms and couplings on both sides
1
1
5.
Drive spring pins (item 11) from bearing housing and
coring head frame.
2
6.
Support bearing housing assembly to prevent it from
falling. Remove fasteners that secure bearing housing
assembly to coring head frame. Remove bearing hous-
ing assembly from machine.
2
Figure 19
7.
Disassemble bearing housing assembly:
1.
Housing timing mark
2. Crankarm position
A. Remove cap screw (item 1) and flat washer (item
2)
ment of crankarm identification number with timing
mark on bearing housing (Fig. 19).
that fasten crankarms together. Take note of align-
150
(204 to 230 N−m)
to 170 ft−lb
1
2
B. Slide crankarms from bearing housing.
3
4
C. If necessary, remove bearings and bearing
spacer from bearing housing.
8
7
Installation (Fig. 17)
1.
Install new bearings if they were removed from bear-
ing housing:
6
A. Install new bearing into one side of housing by
pressing on outer race of bearing.
5
70
to 80 ft−lb
4
B. Position bearing spacer into bearing housing.
(95 to 108 N−m)
Figure 20
C. Install second new bearing into housing by press-
ing on outer race of bearing. Make sure that spacer is
centered between bearings.
1.
Coupling (#3 shown)
Iso mount (2 used)
Coupling (#2 shown)
Cap screw (2 used)
5.
6.
7.
8.
Coupling plate
2.
3.
4.
Cap screw (4 used)
Lock nut (2 used)
Flat washer (2 used)
ProCore 864/1298
Page 4 − 21
Coring Head
| Categories | Lawn Mower Manual, Sprinkler and Irrigation Manuals, Toro Sprinkler and Irrigation Manuals |
|---|---|
| Tags | Toro ProCore 1298, Toro ProCore 864 |
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|
| Document Type | Catalog |
| Language | English |
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