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

G210–1ValveInspection

1.Cleanthecarbonfromthevalves.

2.Inspectthevalvestemsforpitting,wear,orifbent.

3.Measureandverifythevalvestemdiameteristospecication.

StemDiameterStandardServiceLimit

Intake

5.480mm(0.2157inch)5.318mm(0.2094inch)

Exhaust

5.440mm(0.2142inch)5.275(0.2077inch)

g338827

Figure148

4.Inspectthevalvefaceforpitting,wear,orcorrosion.

5.Replacethevalvesetifeithervalveisoutofspecicationordamaged.

6.Repeattheinspectionforbothvalves.

G210–1ValveSpringInspection

1.Inspectthefreelengthofthevalvespringandverifyitistospecication.

Standard:35mm(1.37795inch)

ServiceLimit:32.5mm(1.27953inch)

g338829

Figure149

2.Inspectthevalvespringfrombentcoils(thespringshouldstandstraight).

3.Cleanandinspectthespringretainers.Replaceifdamaged.

G210EngineServiceManual

Page7–13

CompressionSystem:ServiceandRepairs

3439-732RevA