Replacing the cutting unit belt
Protect your hands with gloves
when working with the blades.
There is a risk of crush injuries
when working with the belt.
On these cutting units with "collision-proof"
blades, the blades are driven by one V-belt.
Do as follows to replace the V-belt:
Dismantle the cutting unit. See "Side
shifting the cutting unit" on page 87.
Remove the screws for the covers. Lift
off the protective covers from over the
Pry off the old belt from the belt pulleys.
Use a jimmy bar, if necessary, in order to
release the belt tension.
Slacken off two screws and remove the
three others for the gear housing. Turn
the gear housing so that the belts can be
moved under the pulley.
Check that the belt tensioning equipment
is not jammed or binding and replace the
Position the new belt and reinstall the
Attach the new belt.
The belt position decal is on the cutting
unit under the protective cover.
Install the protective covers.
Attach the cutting unit to the machine.
Use gloves and protective eyewear
when working with the cutting unit.
Remove the cutting unit's upper covers,
see "Belt replacement".
Loosen the spring (1) that tensions the
V-belt and pry off the belt.
Loosen the screw (2) that holds the belt
pulley a few turns. Lock the blade with a
wooden block or hold the belt pulley in
place, with an oil filter wrench, for example.
Relieving the spring
Gear housing turned for belt replacement
Spring and pulley