Dolmar PS-421 User Manuals

Table of Contents

• Delivery inventory

  4
• Chain lubrication

  29
• Symbols

  4
• Safety precautions

  5
• Stopping the engine

  30
• Denomination of components

  17
• Checking the chain brake

  31
• Technical data

  18
• Working in winter

  31
• Adjusting the carburetor

  32
• Mounting the guide bar and saw chain

  19
• Sharpening the saw chain

  33
• Tightening the saw chain

  20
• Cleaning the brake band and sprocket interior

  35
• Checking the chain tension

  21
• Cleaning the guide bar

  35
• Retightening the saw chain

  21
• Replacing the saw chain

  36
• Cleaning the air filter

  37
• Mounting the guide bar and saw chain

  22
• Replacing the spark plug

  38
• Tensioning the saw chain

  23
• Checking the muffler screws

  38
• Checking the chain tension

  23
• Replacing the starter cable

  39
• Retensioning the saw chain

  23
• Replacing the return spring

  39
• Mounting the fan housing

  39
• Mounting the guide bar and saw chain

  24
• Cleaning the cylinder area

  40
• Tightening the saw chain

  25
• Replacing the fuel filter

  40
• Checking the chain tension

  26
• Replacing / cleaning the spark arrester screen

  40
• Retensioning the saw chain

  26
• Instructions for daily and periodic maintenance

  41
• Chain brake

  26
• Service, spare parts and guarantee

  42
• Engaging the chain brake

  26
• Troubleshooting

  43
• Fuel / Refuelling

  27
• Extract from the spare parts list

  44