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SC180H Owner's Manual
DRIVE BELT
1. Follow steps 1-4 in the blade belt removal section. The blade belt will need to be removed in order to remove the drive belt.
2. Loosen the belt finger (119) on the idler arm (20) and remove the belt from the idler arm by lifting it over the idler pulley (39)
and arm.
3. The belt will be loose enough now to walk it off of the transmission pulley (32). Remove the belt from the transmission pulley.
4. Disconnect the clutch cable (110) and then remove the bolt (114) holding the clutch (18) to the engine shaft.
5. Lower the clutch (18) enough and slide the belt off of the clutch groove and replace the old worn belt with a new one. Make
sure it is sitting in the groove that the old one was removed from.
6. Reconnect the clutch back to the engine shaft. Make sure the anti-rotation bolt is in the small tube before reattaching. See
page 15 for proper torque for the clutch bolt.
7. Reinstall all removed parts in the reverse order that they were removed.
8. Check for proper operation.
CHECKING AND REPLACING THE BLADE
Always check the state of the blade (item 44) before commencing work. Do not forget to switch the engine off!
Remove the sparkplug wire.
During work operations if the blade strikes stones or stumps stop straightaway and make sure that it has not become
bent or broken. A damaged blade must be replaced.
If the blade is very worn, cracked or bent, it may snap and project objects outwards, risking serious accident.
Use heavy-duty work gloves to check or replace the blade to avoid risk of injury to hands.
The blade fixing screws (item 81) and relative nuts (item 75) are also subject to wear. Always replace them at the same
time as the blade, using bolts and screws of the same strength and type. Torque the bolts to 30 ft. lbs. (40.6 N.m)
The blade wears more quickly on dry, sandy ground. In these conditions it should be replaced more frequently.
To remove the blade, proceed as follows:
1. Switch off the engine and disconnect the spark plug wire
2. Adjust the cutting height to maximum
3. Check the state of the blade. Check that the blade is not cracked, bent, excessively worn or broken
4. When repair or check of blade is completed reattach spark plug
CHECKS
Adjust the belt and cable control tension after the first few working hours to account for initial break-in.
Briefly operate all the machine's components to detect any abnormal noises or overheating.
During the initial running in period avoid heavy-duty usage to encourage proper settling of the mechanical parts.
Never neglect maintenance operations after work and carry out all pre-scribed checks regularly.
CABLE CONTROL ADJUSTMENT
To adjust the cables place the machine on flat ground, switch off the engine and disconnect
the wire from the spark plug.
BLADE AND DRIVE CONTROL CABLES
Adjustments to the tension on the cables are made by adjusting the barrel length located on
the handle. By extending the barrel more tension will be put on the cable. Make sure that you
do not apply too much tension as this will cause premature failure or cause the lever to
engage when it is not wanted.
Note: Apply lithium grease to the slots on the drive levers where the cable sits to help
extend cable life.
SHIFTER CONTROL CABLE
Position on the Shifter control cable (item 22) can be made by removing the rear cover and
adjusting the barrel in or out depending on the desired Position.
Part No 371508
9
Form No F102215A
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