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

PistonandConnectingRodDisassembly(continued)

g338343

Figure196

1.T opRing

3.OilRing

2.MiddleRing

PistonandConnectingRodInspection

1.Inspectthecylinderborefordamage.Replacetheengineifthecylinderbore

isdamagedoroutofspecication.

•Inspectthecylinderboreforsurfacewear,pitting,orscratches.

•Inspectthecylindertaperandcylinderoutofround.

•Measureandverifythecylinderboreistospecication.

Standard:70mm(2.7559inch)

ServiceLimit:70.165mm(2.7612inch)

g338330

Figure197

2.Inspecttheconnectingrodfordamage.Replacetheconnectingrod

assemblydamaged.

•Usingastraightedge,verifytheconnectingrodisnotbentortwisted.

•Inspecttheconnectingrodforoverheatingdamage.Agoodconnecting

rodwillbebrightaluminumincolor.

G210EngineServiceManual

Page7–43

CompressionSystem:ServiceandRepairs

3439-732RevA