Maintaining the Guide BAR, See Figures 61

MAINTENANCE

MAINTAINING THE GUIDE BAR

See Figure 60.

CAUTION:

Make sure the chain has stopped before you do any work on the saw.

Every week of use, reverse the guide bar on the saw to distribute the wear for maximum bar life. The bar should be cleaned every day of use and checked for wear and damage.

Feathering or burring of the bar rails is a normal process of bar wear. Such faults should be smoothed with a file as soon as they occur.

A bar with any of the following faults should be replaced:

Wear inside the bar rails that permits the chain to lay over sideways

Bent guide bar

Cracked or broken rails

Spread rails

In addition, lubricate guide bars (with a sprocket at their tip) weekly. Using a grease syringe, lubricate weekly in the lubricating hole.

Turn the guide bar and check that the lubrication holes and chain groove are free from impurities.

LUBRICATING HOLE

Fig. 60

MAINTAINING THE SAFE-T-TIP NOSE GUARD

See Figures 61 and 62.

CAUTION:

Make sure the chain has stopped before you do any work on the saw.

WARNING:

Although the guide bar comes with a SAFE-T-TIP anti- kickback device already installed, you need to check the tightness of the mounting screw before each use.

Tighten the mounting screw of the nose guard as in- structed below. These are specially hardened screws. If you cannot install the screw tightly, replace both the screw and the SAFE-T-TIP before further operation. Do not replace the screw with an ordinary screw.

In addition to preventing chain contact with solid objects at the nose of the bar, the SAFE-T-TIP also helps keep the chain away from abrasive surfaces, such as the ground. Keep it on the right hand side of the bar where it will be between the chain and the ground during flush with ground cutting.

The mounting screw requires a 5/16 in. wrench (or adjustable wrench) to achieve the recommended tight- ness of 35 to 45 in.lb. (4-5 Nm). A tightness within this range can be achieved by using the following method.

1.Tighten the screw with your finger.

2.Tighten the screw an additional 3/4 of a turn using a wrench.

MOUNTING

SCREW

SAFE-T-TIP

Fig. 61

Page 29