Unblocking Cutting Cylinders; Centre Cutterhead Height Of Cut Correction Adjustment - Toro 650D Operator's Manual

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UNBLOCKING CUTTING CYLINDERS

WARNING: PREVENT ACCIDENTS - Before attempting to clear any blockage from the cutting
cylinders on this machines ensure all of the following:
- Stop the machine on level ground.
- Apply the parking brake and disengage all drives.
- Lower the cutting units to the ground or securely lock in the designated transport positions.
- Stop the engine and remove the ignition key to isolate all power sources and check that they
are stopped.
- Release all stored energy devices.
- Check that all moving parts are stationary.
NEVER ATTEMPT TO ROTATE THE CUTTING CYLINDERS BY HAND as there may be some
residual pressure in the hydraulic system which could cause injury through sudden movement of the cylin-
der(s) when the blockage is released.
Always wear protective gloves and use a suitable strong wooden instrument. Ensure that this will fit between
the blades and through the cylinder and is long enough to provide sufficient leverage to release the block-
age and any residual hydraulic system pressure by rotating or rocking the cylinder. Make sure that the wood-
en instrument is properly supported in the cylinder and avoid the use of excessive force to prevent damage.
Only when the cylinder has a degree of free movement should the source of the blockage be removed.
Ensure that the wooden instrument is also removed before restarting the power source.
If the cylinder requires readjustment or repair, refer - MAINTENANCE - Cutterheads.

CENTRE CUTTERHEAD HEIGHT OF CUT CORRECTION ADJUSTMENT

With all cutterheads set at the same HOC via the indicator rings, it may be noticeable that the centre unit produces a
higher cut finish compared to the wing units. The centre unit is pulled and the wing units are pushed this presents
marginally different cutting angles relative to the ground. The amount of HOC variation, which results from this will
be influenced by the terrain but satisfactory results can usually be achieved by setting the centre cutterhead HOC
indicator ring lower than the wing unit settings.
OPERATING THE MOWER
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