Toro 145-8399 Groundsmaster Rotary Mower Instruction Manual

145-8399 Groundsmaster^®5900 or 5910 Rotary Mower
Instruction Manual

Note: Determine the left and right sides of the machine from the normal operating position.

Installation

Loose Parts
Use the chart below to verify that all parts have been shipped.

Preparing the Machine

No Parts Required
Procedure

1. Park the machine on a level surface.
2. Engage the parking brake.
3. Lower the cutting unit.
4. Shut off the engine and remove the key.

Drilling Holes for the Idler Assembly

Parts needed for this procedure:
Template
Procedure

1. Open the hood.
2. Remove the tension on the belt and move the belt away from the installation area.
3. Remove the roll pin, bolt, and the existing idler pulley shown in Figure 1.1. Bolt
   2. Roll pin
   3. Left rear tire
4. Align the template to the frame using the holes labeled 1 in Figure Figure 2.
5. Punch the location of the holes labeled 3 in Figure 2.1. Align holes to frame
   2. Template
   3. Punch the holes here.
6. Remove the template.
7. Drill 2 holes (13/32 inch) at the punched locations (Figure 3).
   WARNING
   Using a drill without proper eye protection may allow debris to enter the eye, causing injury.
   When drilling, always wear eye protection.1. Drill holes (13/32 inch)

Installing the Idler Pulley

Parts needed for this procedure:

Procedure

1. Install the idler pulley to the idler arm with a bolt (1/2 x 1-3/4 inches), spacer, and 1 lockout (1/2 inch); refer to Figure 4.1. Locknut (1/2 inch)
   2. Idler pulley
   3. Spacer
   4. Idler arm
   5. Bolt (1/2 x 1-3/4 inches)
2. Install the grease fitting into the idler support as shown in Figure 5.
3. Install the idler support and idler arm to the frame of the machine with 2 bolts (3/8 x 1-1/4 inches), 2 bushings, a spring, and a nylon lockout (3/8 inch); refer to Figure 6.
4. Install the install the spring ends as shown in Figure 7.1. Idler support
   2. Spring
   3. Idler arm
   4. Bolt (3/8 x 1-1/4 inches)
   5. Bushing
   6. Nut (3/8 inch)
5. Using a ratchet (3/8 inch) in the square in the idler arm, rotate the idler arm and install the belt around the idler pulley (Figure 7).1. Spring end
   2. Square in idler arm
6. Close the hood and secure it with the 2 hood latches.

© 2023—The Toro® Company
8111 Lyndale Avenue South
Bloomington, MN 55420
Register at www.Toro.com.
Original Instructions (EN)
Printed in the USA
All Rights ReservedForm No. 3462-319 Rev A

References