Tightening The Drive Belt; When Do I Have To Change The Engine Oil; Exchange Of Saw Blade - Scheppach HS720 Originalanleitung

18. Tightening the drive belt

• Switch off the engine.
• The engine must have cooled down.
• Remove the belt guard to gain access to the belt.
• Loosen the 4 bolts (A) under the engine plate.
• Loosen the lock nut (B).
• Using the clamp screw (C), tighten the drive belt if
the belt gives more than 10-15 mm (when pressing
your thumb on it).
• Tighten the lock nut (B) and the 4 screws (A) again.
• Attach the belt guard again.
When you remove or attach the drive belt, make sure
that your fingers do not get caught between the belt
and the pulley.
A
19. When do I have to change the en-
gine oil?
The oil has to be replaced after every 50 operating
hours and the engine has to be switched off and the
device should still be warm. To this end, start the en-
gine for a short while, if required.
Place a suitable collecting container with a volume of
at least 1 litre under the oil drain plug (A).
First open the oil drain plug (A) and then the oil filler
neck (B) and drain off the entire engine oil using a
suitable hose or pipe.
Close the oil drain plug (A) again and fill 0.6 litres of
fresh engine oil into the oil filler neck (B).
Afterwards, check the oil level using the oil dipstick
(B) and adjust the oil level, if required.
B
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B
C
A
Recommended engine oil
SAE 10W-30 or SAE 10W-40 (depending on the op-
erating/ambient temperature)

20. Exchange of saw blade

1
Wait until stationary and allow to cool down. Re-
move the mains plug or remove the spark plug
connector!
• The exchange of the saw blade can only be under-
taken in firewood cut position.
• Loosen the top and bottom screws on the protec-
tive cover approx. 5 mm and open the protective
cover.
• To lock the saw blade into place, insert the locking
pin (1) through the corresponding opening on the
saw blade guard. To do this, insert the pin com-
pletely and straight into the hole. Use the corre-
sponding hole (depending on the saw blade type)
so that the pin is at the lowest point (bottom of the
tooth).
• Loosen the saw blade with the supplied open-end
spanner / Allen wrench (2).
• Remove the saw blade flange
• Insert the new saw blade.
• Mount the saw blade flange again and tighten the
clamp screw.
• Remove the locking pin.
m Attention! When installing the saw blade, pay
attention to the correct direction of rotation!
2
GB 31