Ryobi 990r manuals

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PRODUCT REFERENCES, ILLUSTRA- TIONS AND SPECIFICATIONS
2INTRODUCTION TABLE OF CONTENTS
- SERVICE INFORMATION
- California Proposition 65 Warning:
3CALIFORNIA EMISSION REGULATIONS
SAFETY WARNINGS
- FUEL AND PRE-OPERATIONAL
4SAFETY WARNINGS
- OPERATIONAL
- OTHER SAFETY WARNINGS
- DURING USE
- AFTER USE
- SAFTEY WARNINGS FOR THE BRUSH BLADE
SAFETY WARNINGS (Continued)
- SIGNIFICATION SYMBOL
- SAFETY AND INTERNATIONAL SYMBOLS
5I O
- SIGNIFICATIONSYMBOL
- 6SAFETY WARNINGS (Continued)
- 7ASSEMBLY INSTRUCTIONS
  - INSTALLING THE SHOULDER STRAP
  - ADJUSTING THE J-HANDLE
  - 8INSTALLING THE BRUSH BLADE
    - Fig. 8
    - Fig. 9
    - Fig. 7
    - Fig. 6
    - Fig. 10
  - 9INSTALLING THE LINE SPOOL
  - 10OPERATING THE SPLIT BOOMCOUPLER
  - Removing the Lower (Attachment) Boom
    - Fig. 11
    - Fig. 12
    - Fig. 13
  - Installing the Lower (Attachment) Boom
- 11OIL & FUEL INFORMATION
  - CHECKING THE OIL
    - Fig. 14
- THIS ENGINE IS CERTIFIED TO OPERATE ON UNLEADED GAS ONLY.
  - Fig. 15
  - Fig. 16
  - RECOMMENDED OIL TYPE
  - ADDING OIL TO CRANKCASE - INITIAL USE
    - Funnel Spout 100 ml (3.4 oz) Level
  - RECOMMENDED FUEL TYPE
  - DEFINITION OF BLENDED FUELS
    - Fig. 18
  - USE OF BLENDED FUELS
  - USE OF FUEL ADDITIVES
- 12OIL & FUEL INFORMATION (Continued)
  - Full (100 ml/3.4 oz)
  - CHANGING THE OIL
    - O-ring Add Oil Fig. 17
- 13STARTING/STOPPING INSTRUCTIONS
- 14OPERATING INSTRUCTIONS
- 15MAINTENANCE SCHEDULE
- MAINTENANCE AND REPAIR INSTRUCTIONS
  - Bump Knob
  - 16LINE INSTALLATION
    - Inner Reel
    - Fig. 29
    - REWINDING THE EXISTING REEL
    - The Correct Line to Use
    - Removing the Existing Reel
      - Fig. 27
      - Fig. 28
      - Fig. 26
    - 17Reinstalling the Reel
    - INSTALLING A PREWOUND REEL
      - Fig. 31
    - Winding the Existing Reel
      - Fig. 33
      - Fig. 32
      - Fig. 30
    - 19AIR FILTER MAINTENANCE
    - 20Adjusting the Carburetor
    - CARBURETOR ADJUSTMENT
      - Fig. 40
      - Rich
      - Lean Adjust to Midpoint
      - Fig. 43
      - Fig. 41
      - Fig. 42
    - 21CARBURETOR ADJUSTMENT (Continued) INSPECTING/CLEANING THE MUFFLER
    - Removing Muffler
    - Definition of Optimum Setting for Idle Speed Mixture and High Speed Mixture Adjustments
    - 22Inspection and Cleaning
    - Muffler Reassembly
      - Fig. 46
      - Fig. 44
    - Checking Spark Arrester Screen
      - WARNING
        Fig. 45
    - 23CHECKING / ADJUSTING VALVE TO ROCKER ARM CLEARANCE
    - REPLACING THE SPARK PLUG
      - Fig. 48
      - Fig. 47
      - .025 in (0.635 mm)
      - Fig. 49
      - 24Fig. 50
      - Fig. 52
      - Fig. 51
- 25CLEANING AND STORAGE
  - WARNING
  - Cleaning
  - Storage
    - Fig. 53
  - DRIVE SHAFT & CUTTING HEAD
  - COLD TORQUE SPECIFICATIONS
- SPECIFICATIONS
  - ENGINE
- 26TROUBLESHOOTING
  - PROBLEM CAUSE ACTION
  - 27CALIFORNIA EMISSION CONTROL WARRANTY STATEMENT
    - YOUR WARRANTY RIGHTS AND OBLIGATIONS
  - Limited Two-Year Warranty
- 28RYOBI AMERICA CORP.
  - 5201 Pearman Dairy Rd Anderson, SC 29622-1207 U.S.A.
- RYOBI CANADA INC.
  - 275 Industrial Rd Cambridge, Ontario NIR 6K2 CANADA