Center Crankcase Components; Separating Crankcase Halves; Disassembling Crankcase Half - Toro 500 EFI Service Manual

Center Crankcase
Components

NOTE: This procedure cannot be done with the
engine/transmission in the frame. Complete Remov-
ing procedures for Top-Side, Left-Side, and Right-
Side must precede this procedure.

NOTE: For efficiency, it is preferable to remove and
disassemble only those components which need to
be addressed and to service only those components.
The technician should use discretion and sound
judgment.
Separating Crankcase
Halves
1. Remove the right-side cap screws securing the crankcase
halves. Note the location of the different-lengthed cap
screws.
2. Remove the left-side cap screws securing the crankcase
halves. Note the location of the different-lengthed cap
screws.
3. Using the Crankcase Separator/Crankshaft Remover and
tapping lightly with a rubber mallet, separate the crank-
case halves. Account for two alignment pins.

NOTE: To keep the shaft/gear assemblies intact for
identification, tap the shafts toward the left-side
crankcase half when separating the halves.
Disassembling Crankcase
Half

NOTE: For steps 1-7, refer to illustration PR787A.

NOTE: To aid in installing, it is recommended that
the assemblies are kept together and IN ORDER.
KEY
A. Secondary Driven Shaft
Assembly
B. Crank Balancer Assembly
C. Crankshaft
D. Countershaft Assembly
1. Remove the secondary driven shaft assembly (A)
noting the location of the bearing locating pins.
Account for the bearing C-ring.
2. Remove the reverse idler gear assembly (F). Account
for all washers, shaft, bushing, and the gear.
PR786
3. Remove the shift shaft (H); then remove the two
forks taking note of the direction of the tabs on the
forks for assembling purposes.
4. Remove the gear shift shaft (G) noting the location
of the two holes on the end of the shaft. Account for
a spacer and a washer.
E. Driveshaft
F. Reverse Idler Gear Assembly
G. Gear Shift Shaft
H. Shift Shaft with 2 Forks
PR787A
PR787B
CC668
105