Service Manual

ManualsBrandsToro ManualsGas Snow BlowersPower Clear 721 R-C 21 in. 212 cc Commercial Single-Stage Self Propelled Gas Snow Blower

Table Of Contents

Revision History
Preface
- Service Procedure Icons
Chapter 1 : Safety
- Safety Instructions
  - Think Safety First
Chapter 2 : Specifications and Maintenance
- Specifications
- Torque Specifications
  - Equivalents and Conversions
  - U.S. to Metric Conversions
Chapter 3 : Troubleshooting
- General Troubleshooting
- Engine Model/Serial Number Location
Chapter 4 : Starter System
- General Information
- Service and Repairs
  - Recoil Replacement
Chapter 5 : Fuel System
- General Information
- Service and Repairs
Chapter 6 : Governor Controls
- General Information
- Service and Repairs
  - Speed Control Assembly Replacement (G210–1, G210–2, & G210–4)
  - Governor Arm Replacement (G210–1, G210–2, & G210–4)
Chapter 7 : Compression System
- General Information
- Service and Repairs
  - Cylinder Head Replacement (G210–1, G210–2, & G210–4)
  - Piston and Connecting Rod Replacement
Chapter 8 : Electrical
- General Information
- Service and Repairs
Chapter 9 : Engine Lower End
- General Information
- Service and Repairs

PistonandConnectingRodInspection(continued)

clearance.Iftheclearanceisstillnottospecication,replacetheengine

assembly.

Standard:0.015–0.05mm(0.000591–0.001969inch)

ServiceLimit:0.12mm(0.0047inch)

12.Measureandverifythepistonpinistospecication.Ifthepistonpinisnotto

specication,replacethepistonpin.

Standard:18.0mm(0.70866inch)

ServiceLimit:17.954mm(0.70685inch)

g338333

Figure204

13.Inspectthepistonpinclipsfordamage.Replacethepistonpinclipsif

damagedoroutofround.

g338334

Figure205

14.Inspectthepistonrings.Replacethepistonringsetifanyringisnotto

specicationorisdamaged.

•Inspecteachpistonringforsurfacewear,broken,pitting,orscratches.

•Measureandverifyeachpistonringwidthistospecication.

G210EngineServiceManual

Page7–47

CompressionSystem:ServiceandRepairs

3439-732RevA