Before the chain and/or saw blade can be replaced, the indicated ball valve be must closed completely. Then, by activating the saw function again, the saw blade will stay in its extended position and won’t return into the saw casing. Now, the machine can be turned off in order to replace the chain and/or saw blade.
Replacing the chain
Loosen the two M20 nuts using the supplied 30 mm combination spanner. Do not fully remove the nuts from the bolts, but loosen them just enough so that the chain tensioner can be lifted slightly and no longer holds the saw blade. Now, the saw blade can be shifted back to create space to replace the chain.
Once the new or sharpened chain is in place, it must be tensioned. This can be done by using the supplied flexible hex wrench to tighten the bolt in the chain tensioner. Once tensioned, the two M20 nuts must be tightened so that the chain tensioner clamping plate once again holds the saw blade. A correctly tensioned chain has virtually no play when you try to lift it by hand. The chain links must not come off the blade.
When finished, the ball valve must be fully reopened. The blade will automatically retract into the saw casing.