RHD Series RHD
230/250/280
18
Drive Belts
Power from the tractor via the machines gearbox and half-shaft is transferred
to the rotor through sets of belts -
the RHD 230 models employ a 4 belt
system and RHD 250 & 280 models employ a 5 belt system.
Correct
tensioning of the belts is required for both optimal operation of the machine
and long lasting belt life
– in order to ensure correct belt tension the machines
are fitted with automatic belt tensioning.
Belt Tensioner
Machines are fitted as standard with
an automatic belt tensioning system.
The system consists of a pre-
tensioned arm and strain pulley set at
22° that permanently runs on the
belts exerting sufficient pressure to
keep the belts correctly tensioned.
For correct tension the system must
be set at an angle of 22°
– an arrow is
marked on the tension device to aid
its setting, which should always be
performed when the belts are cold.
No other adjustment or maintenance
will be required on the belt tensioning
system other than routine inspection
and general cleaning of components
when inspecting belt wear.
WARNING: Checking of belts and drive components should only be carried out with
tractors engine switched off, starting key removed and the PTO shaft disconnected.
Never attempt to run the machine with the belt guard removed.
Machine RPM
These machines are all 1000 RPM - before operating the machine always
ensure the RPM is compatible with the tractor PTO speed
– this is particularly
important on tractors that have different PTO speeds front and rear.
WARNING: Always check machine and tractor PTO speeds are compatible before
using the machine.
Flail Types
Two types of flails are available for use with these machines, these are shown
below;
Hammer Flails
Y-Flails
Belt Tensioner
Belt Tensioner Pulley
Larger Pulley
Smaller Pulley
