Murray EQ2-400 Manuel D'utilisation Et Garantie page 22

User manual and warranty card
3. Loosen the screw that holds the knife.
4. Check the condition of the knife (see chapter "Operation of the cutting knife").
5. Replace a worn or damaged knife with a new one recommended by the manufacturer.
6. Tighten the screw to 45 to 55 Nm. If the clamping screw is too loose, the knife may become
loose, which may cause an accident.
Attention! When installing the knife, remember about the direction of the knife. If the knife is
incorrectly fastened, it will not cut properly and may cause an accident.
Attention! When installing the knife, remember about the direction of the knife. If the knife
is incorrectly fastened, it will not cut properly and may cause an accident.
THE MOST IMPORTANT KNIFE PARAMETERS (Fig. 14B)
A - length (460 mm), shorter knives are allowed, but then you have to take into account that the
effective cutting width will be smaller,
B - width (50 mm),
C - clamping hole diameter (11 mm),
D - hole center distance (27,5 mm),
Hole diameter 11x11 mm circle for safety wedges is standard and amounts to 15.5 mm.
It is recommended to use MURRAY cutting knives dedicated to the given mower model.
Attention! The shape of the knife indicates its characteristics, depending on the shape of
the knife is more suitable for: mowing with a basket, mowing with side ejection or mulching. The
universal knife used in the factory may turn out to be less efficient than we would have expected,
so it is recommended to buy accessory knives for each function, i.e. one for grinding, the other for
throwing grass into the basket.
SPARK PLUG OPERATION
Spark plug (Fig. 15A) must be replaced at the beginning of each season or after 100 hours of
operation.
Use original B&S QC12YC / B&S 797429 spark plugs. Recommended gap between electrodes is: 0.51
mm (Fig. 15B). Check the gap with a blade feeler gauge.
OIL REPLACEMENT (Fig. 16)
The first oil change should be carried out after 4 to 5 hours of engine operation. Perform next oil
changes every 25 hours of operation or more often. The oil drain plug may be mounted on the
engine block, but this depends on the engine model. If the engine does not have a drain plug in the
engine block, pour oil with the filler plug after emptying the fuel tank:
• Unscrew the oil filler cap with the dipstick.
• Remove the air filter to prevent it from absorbing gasoline when the mower is tilted.
• Tilt the mower to the oil filler plug side 14 (Fig. 2).
• Leave the mower in this position until the oil stops flowing (this may take several minutes).
After pouring the oil out of the engine, set the mower in a flat position and pour about 0.47L of
engine oil recommended by B&S SAE30 specification by checking the level on the dipstick integrated
with the oil filler cap. Screw in the oil plug with the dipstick and install the air filter.
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