Iseki T31480 Notice De Montage page 87

SSM60-TH4330E4
Fig.8-2
a. Remove the mower blade which is attached the
shaft of the gear case referring to the instructions
for the replacement of the mower blades.
b. Detach the drive shaft cover and both belt cover
(LH and RH) by loosing the tightening nuts.
c. Loosen the lock nut for the tension rod and
remove the tension spring.
d. Remove the gear case mount by removing the
four bolts.
e. Remove the level plug and drain plug. Then
drain all 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 oil pitcher.
(Gear oil capacity: 380 - 420cc)
g. Wrap the threads of the level plug with sealing
tape and re-install it.
Important:
All oil spilt 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 slip-
pery.
h. Tighten the gear case mounting plates securely
with bolts.
CHAPTER 8. INSPECTION AND SERVICE OF EACH PART
51
i. Make sure that the belt runs around the pulleys
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.
j. Re-install the drive shaft cover, the belt covers
and the blades.
8-2. Inspection and replacement of the drive
belt
1) Pre-operation check:
Check if the belt is tensioned properly. When its
tension is correct, the clearances between coils
of the tension spring should be 1 to 1.2 mm
(0.04 - 0.05 inch).
2) Inspection of the belt tension:
a. Check the tension of each belt. Measure the
length or inter-coil clearance of the tension
spring.
Fig.8-3
A: Length
B: Clearance