Toro ProCore SR Series, Service Manual, Page: 45 / 122

ProCore SR Series Page 4 -- 7 Coring Head (SR54 & SR70)
Special Tools
Order special tools from your Toro Distributor.
Crankshaft Nut Wrench
Use to remove and install the hex nuts that secure coring
head crankshaft crank arms and connecting rods.
Toro Part Number: SG885300
Figure 2
2” hex
3” hex
Bullet Tools
Use to protect threads of crankshaft components during
assembly of crankshaft, connecting rods and linkage
arms. The bullet tool should be installed onto the
threads of the crankpin or linkage arm fastener to pre-
vent thread damage when component is installed.
NOTE: On ProCore SR54 and SR70 aerators, bullet
tool SG255001 is used for the crank pin and crank shaft.
Tool SG255002 is used for the cap screws that secure
the linkage arms.
Figure 3
1 3/8” -- 16
SG255000
(1.745” OD)
1 1/4” -- 12
SG255001
(1.560” OD)
3/4” -- 16
SG255002
(0.980” OD)
Torque Multiplier
Use in conjunction with an appropriate torque wrench to
install and properly torque the fasteners that secure cor-
ing head crankshaft crank arms and connecting rods.
Obtain this tool locally.
Figure 4
Coring
Head
(SR54
&
SR70)