Maintenance; Trouble Shooting; Belt Adjustment - Masport 573150 Manuel D'utilisation

Quadcut Blade
®
CHIPPER BLADE.
1. Follow the servicing instructions for
removing the "Bar and Disc Blades' on this
page.
2. When the blade carrier is removed from the
crankshaft it can be placed in a vice and
the chipper blade removed.
3. Either sharpen and balance out the old
blade, or fit a new one. The mower blade
should also be inspected at the same time.
4. Assemble in the reverse order, taking care
to align the keyway slot in the blade and
the blade driver.
BLADE REPLACEMENT TORQUE
SETTINGS:-
Blade centre bolt 45 -50 Nm (33 - 37 ft.lb)
Four chipper blade 9 -11 Nm (6.6 - 8 ft.lb)
bolts
Tip mounting bolt 20 - 25 Nm (15 - 18 ft.lb)
ENGINE MAINTENANCE
Consult the engine booklet for the maker's
instructions.
DRAINING THE OIL.
While most engines have a drain plug under-
neath them, it will be found more convenient to
remove the oil dipstick and tip the mower on its
side. Collect the old oil in a suitable tray such as
a two litre ice cream container.
IGNITION.
Your engine has a breaker-less solid state
ignition system which requires no maintenance
other than occasional attention to the spark
plug. We recommend cleaning an re-gapping
every 50 hours with replacement every 100
hours (see engine instruction booklet).
CAUTION
DO NOT SANDBLAST PLUGS as abra-
sive grains can enter the engine and
cause serious damage. USE ONLY THE
ExACT TYPE OF REPLACEMENT PLUG
specified in the engine instruction booklet.
AIR CLEANER.
A clean filter cartridge, correctly fitted, is
ESSENTIAL for long engine life. Service the
filter every 25 hours running (more often under
adverse conditions) according to the instructions
in the engine booklet.
MUFFLER.
A rusted or damaged muffler can permit
increased exhaust noise. Check the muffler
condition periodically and replace it only with a
genuine original equipment part.
DRIVE MAINTENANCE
ROTAROLA.
Every 25 hours -
Remove the outer chain cover and apply grease
to the chain.
Every 100 hours -
Remove the outer chain cover, disconnect the
outer chain at its connecting link, withdraw the
sprocket at the top end of the inner chain cover.
Remove the inner chain cover and apply grease
to the chain.
OTHER SELF PROPELLED MODELS.
Every 100 hours -
Remove each rear wheel by removing the
hub cap, and undoing the 8mm nyloc nut and
washer retaining the wheel to the axle. Remove
the circlip retaining the pinion, taking care not to
over stretch it, and remove the washer and
pinion. Apply grease to pawl y, pinion bore z,
and wheel gear {. Take care to replace the
pawls exactly as they were removed, and do not
move pinions to the opposite side of the mower.

TROUBLE SHOOTING

TROUBLE PROBABLE CAUSE
Uneven or poor cut. Blunt blade.
Heavy mulch left on Cutting height is too low
cut strip. for the height of the grass
being cut.
Engine not running at full
speed.
Underside of the mower's
deck is clogged with wet
grass clippings.
GEARBOX.
The gearbox on these models is a sealed unit
that requires no maintenance. Just jeep the
outside clean.

BELT ADJUSTMENT

SINGLE SPEED MODELS.
(Except self propelled Chipper models &
Rotarola)
Keeping the spark plug uppermost, tilt the
mower to gain access to the gearbox. Using
two 10mm AF spanners, slacken the screw
which clamps the gearbox anchor bracket to the
mower housing just enough to allow the gearbox
to be rotated about its output shaft. Rotate the
gearbox to take any slack out of the V belt drive
and re-clamp the anchor bracket in tis new
position by tightening the clamp and screw
firmly.
SELF PROPELLED CHIPPER MODELS AND
ROTAROLA
These have a belt tensioning idler pulley. To
adjust this, slacken off the clamp screw or nut
which holds the V shaped idler pulley post and
slide the post along the slot in the body. Re-
tighten the screw or nut when the slack in the
belt has been eliminated.
VARIABLE SPEED MODELS.
DO NOT tip the mower up as described above
for single speed models. Variable speed models
have an adjuster on the cable running down
from the speed control to the drive mechanism.
Alter this adjuster only if the travel of the speed
control lever does not match the full range of
available travel speeds.
The adjuster has three parts, two end fittings
each attached to upper and lower outer cables,
and a central barrel connected to the end fittings
by right and left hand threads. Keeping the end
fittings stationary, rotate the barrel to push the
ends apart to increase travel speed, and to bring
the end fittings together to reduce travel speed.
Using this adjuster will compensate for belt
stretch or wear which may occur.
SOLUTION
Sharpen blade.
Adjust the cutting height to remove
approximately one third of the length of
the grass. Then work down to the desired
height.
Move the throttle to fast.
Hose off the underside of the mower. See
AFTER MOWING.
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