Aligning The Pump-Drive Pulley - Toro Z Master 8000 Series Operator's Manual

disengage the blade-control switch (PTO), and
engage the parking brake.
2. Shut off the engine, remove the key, and wait
for all moving parts to stop before leaving the
operating position.
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.
Figure 67
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
(Figure 67).
g006846
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
53).
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
1. Park the machine on a level surface, move the
speed-control lever to the N
disengage the blade-control switch (PTO), and
engage the parking brake.
2. Shut off the engine, remove the key, and wait
for all moving parts to stop before leaving the
operating position.
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 (Figure
5. Tighten the pulley set screws and check the
alignment.
53
Aligning
52).
position,
EUTRAL
67).