Toro 100-2317 Installation Instructions

52” Pulley Kit

For Z–Master Series

FORM NO. 3322-688

Part No. 100–2317

Loose

Note: Use the chart below to identify parts for assembly.

DESCRIPTION QTY. USE

Pulley Assembly
Belt

Idler Arm
Flat W

Removing

1. Stop the engine, set the parking brake, remove

2. Remove the clutch retaining strap from machine

3. Remove the PTO drive belt (Fig. 4).

4. Loosen idler pulley on deck belt. Remove deck

Parts

ashers

Belts

the key and disconnect the spark plug wire(s)
from the spark plug(s).

frame and unplug clutch terminal from wire
harness (Fig. 4).

belt from center spindle pulley.

1
1

1
2

Install Pulleys

Install Idler Arm

Installing

Note: Clean area around pulley before

1. Remove nut and washer on top of center spindle

(Fig. 1). Save the nut and washer.

2. Remove existing pulley assembly (Fig. 1).

3.

Install new pulley assembly. Install it so the
large pulley is on top (Fig. 1).

Pulleys

removing pulley assembly. Hold
spindle up from underneath deck. It
can fall when nut and washer are
removed.

INSTALLATION

INSTRUCTIONS

Printed in USA



The T

oro Company – 1999

All Rights Reserved

4. Reinstall washer and nut. Torque nut to 115

ft–lbs (156 Nm) (Fig. 1).

Installation Instructions

5.

Grease spindle.

Installing

New Drive Belt Idler

1

3

1. Nut.

2. Washer

Removing

Figure 1

3. Pulley

4. Spindle

Old Drive Belt Idler

2

4



Assembly

Arm

1. Remove the spring from the old idler arm (Old

idler arm not shown) (Fig. 3).

2. Remove the old idler arm from the machine

frame (Old idler arm not shown) (Fig. 3).

Arm

1. Route new belt onto the idler pulley. Install

pulley and belt to new idler arm using existing
hardware (Fig. 2).

2. Install spring to new idler arm. Use existing

hardware and new flat washer included in kit.
(Fig. 2).

Note: New flat washer must be installed

between spring and heat of bolt.

7

6

9

4

5

asher

1. New

2.

3.

4. Spring

5.

Idler Arm
Lock Nut
New Flat W

Bolt (3/8”–16 x 2–1/4”)

asher

2

3

122

6

Figure 2

6.

Flat W

7. Bushing

8.

Idler Pulley

9.

Bolt (3/8”–16 x 1–3/4”)



3. Remove the spring from the machine frame.

Discard old washer (Fig. 3).

4. Remove the pulley, bushing, and hardware from

idler arm. (Old idler arm not shown) (Fig. 2).

2

3. Install new idler arm assembly to machine

frame. Use existing hardware to attach it (Fig.

3).

4. Install spring to machine frame. Use existing

hardware and new flat washer included in kit.
(Fig. 3).