Iseki SCMA48F, Introduction Manual, Page: 36 / 52

SFH220 & SFH240 FRONT MOWER SERVICE MANUAL
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2. INSPECTION AND REPLACEMENT OF V-BELTS
・
Inspection of belt tension
a. Check the tension of each belt. Measure the length
or the inter-coil clearance of the tension spring.
Length of 135 -140 mm (5.3 -5.5 in.) or clearance of
1.2-1.4 mm (0.05 -0.06 in.) shows proper tension.
(1) Tension spring
b. If the measured spring length or inter-coil clear-
ance deviates from the specified value, correct the
length or clearance by loosening the tension rod nut
and turning the rod.
(1) Lock nut (3) Tension spring
(2) Tension adjustment rod
d. Remove the gear case mount by removing the four
bolts.
e. Remove the level plug and drain plug. Then drain
all the oil by tilting the gear case.
f. Wrap the threads of the drain plug with sealing tape
and screw it in and supply with fresh oil through the
level plug hole using an oil pitcher. [Gear oil SAE80,
capacity: 0.4 liter (0.09 IMP gal.)].
g. Wrap the threads of the level plug with sealing tape
and re-install it.
IMPORTANT: All the oil spilled on the gear case
mount should be wiped off completely
with cloth. If it is not, the belt may be
smeared with oil and become slippery.
h. Tighten the gear case mounting plates securely with
bolts.
i. Make sure that the belt runs around the pulleys as
shown and it is completely seated in the belt ways
of each pulley. Then give proper tension to the ten-
sion spring with the tension rod.
(1) Belt (2) Pulley
j. Re-install the drive shaft cover and the belt covers.
k. Re-install the removed blade.
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