Aligning The Pump-Drive Pulley; Adjusting The Pto Brake Spring - Toro Z Master 8000 Series Operator's Manual

3. Remove the fuel-tank mounting nuts and swing
out the fuel tank.
4. Verify that the blower is installed and tightly
secured.
5. Loosen the 4 engine mounting bolts.
6. Unhook the pump-belt tension spring.
7. Loosen the 4 jackshaft mounting bolts.
8. Measuring from the blower pulley as a baseline,
move the engine and jackshaft until the rear
surface of all 3 pulleys are aligned within 0.8 to
1.6 mm (1/32 inch to 1/16 inch)
Note:
Use a straight edge to align all 3 surfaces.
1. Align the 3 pump-drive
pulley surfaces shown
with this pattern within 0.8
to 1.6 mm (1/32 inch to
1/16 inch).
9. Tighten the 4 engine mounting bolts and 4
jackshaft mounting bolts. Check the alignment
after tightening.
10. Install the pump-belt tension spring.
11. Swing the fuel tank in and install the tank
mounting nuts.
12. Align the pump-drive pulley;
Pump-Drive Pulley (page
Aligning the Pump-Drive
Pulley
The pump-drive-pulley alignment is necessary for any
of the following conditions:
•
The engine mounting bolts have been loosened or
the engine has been moved or replaced.
•
The pump pulleys have been loosened, moved,
or replaced.
•
The PTO pulley has been aligned; refer to
the PTO-Drive Pulley (page
(Figure
Figure 64
2. Align the 3 PTO-drive
pulley surfaces shown
with this pattern within 0.8
to 1.6 mm (1/32 inch to
1/16 inch).
Aligning the
52).
51).
1. Shut off the machine and move the speed-control
lever to the N
2. Disengage the PTO, engage the parking brake,
shut off the engine, and wait for all moving parts
to stop.
3. Loosen the set screws on both pump pulleys.
4. Using a straight edge, align each pump pulley
with the engine pulley by sliding it along the
pump shaft
5. Tighten the pulley set screws and check the
64).
alignment.
Adjusting the PTO Brake
Spring
Adjust the PTO brake spring only if the blower has
been removed or replaced or if the PTO drive idler
arm has been disassembled.
1. Stop the machine and move the speed-control
lever to the N
2. Disengage the PTO, engage the parking brake,
shut off the engine, and wait for all moving parts
to stop.
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3. Locate the brake spring and thread the 2 jam
nuts out to the end of the brake-spring rod
(Figure
4. Tighten the jam nuts together at end of the
brake-spring rod.
1. Tighten the jam nuts here.
2. PTO brake-spring assembly
Aligning
52
position.
EUTRAL
(Figure 64).
position.
EUTRAL
65).
Figure 65
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