Aligning The Pump-Drive Pulley; Adjusting The Pto Brake Spring; Adjusting The Hopper Door - Toro 74310 Operator's Manual

pulleys are aligned within 0.8 to 1.6 mm (1/32 inch
to 1/16 inch) (Figure
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;
Pulley (page 48).
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
PTO-Drive Pulley (page
1. Shut off the machine and move the speed-control lever
to the N position.
EUTRAL
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
57).
5. Tighten the pulley set screws and check the alignment.
57).
Figure 57
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 Pump-Drive
Aligning the
47).
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.
3. Locate the brake spring and thread the 2 jam nuts out
to the end of the brake-spring rod
4. Tighten the jam nuts together at end of the brake-spring
rod.
1. Tighten the jam nuts here.
2. PTO brake-spring assembly

Adjusting the Hopper Door

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.
3. Loosen the 6 door hinge nuts
4. Open the door and place a 3/8 inch (9.5 mm) rubber
strip or 3/8 inch (9.5 mm) diameter hose between the
hopper and the hopper door
5. Close the door and push it tight against the hopper.
6. Tighten the hinge hardware.
7. Open the hopper door and remove the rubber strip.
(Figure
48
position.
EUTRAL
Figure 58
position.
EUTRAL
(Figure
(Figure
(Figure 58).
59).
59).