Bleeding Chain Tension System

All service and repairs should be carried out by qualified personnel or an authorized repair shop with suitable tools and lifting devices. Make sure that the unit is resting securely on the ground. Tip the unit backwards if possible so that the bleeder valve (1) is as high as possible in relation to the tension pistons (2). Remove the saw chain.

When working on the saw chain always ensure the engine is shut off and wear safety gloves to prevent injuries. Remove the saw chain when making any adjustments or servicing the saw unit. Open the bleeder valve (1) 1- 2 turns.

Use the tool P/N 0704040, (3) Start the machine and run the sawing operation several times until the oil coming from the bleeder valve is free from air. Close the bleeder valve (1). As there is no saw chain installed, the bar holder will move to the outer position and stay there. Install the saw chain. Repeat this process after about 30 minutes of operation.

When working on the saw chain always ensure the engine is shut off and wear safety gloves to prevent injuries. Remove the saw chain when making any adjustments or servicing the saw unit.

Always bleed the system if there is any suspicion of air having entered the system, e.g. after replacing a hose or other components

Fig. 17Bleeding chain tensioning system