Spearhead Trident 4000/5000/6000
20
Blunt flails leave an untidy finish and absorb excessive power, when re-
sharpening always wear protective clothing and goggles.
When flails are showing severe wear, damage or cracking, they must be
replaced immediately. Never attempt to weld the flails as this will make them
very brittle, thus extremely dangerous. Do not take risks with the cutting flails,
if in doubt replace.
When replacing flails always replace bolts and nuts for new.
Regularly check that all rotor-bearing bolts are tight (85 Nm).
When replacing a worn flail with a new one, replace the diametrically opposite
flail with a new one also, to retain balance. Save the worn flail as a future
replacement opposite another worn flail.
Rear Roller
Ensure roller shafts are clamped tight
Grease rear roller daily, at least every 8 hours and especially after washing.
10-30 pumps of grease may be required until fresh grease shows.
Pulleys
Three types of pulley centers are used: Centre (6 vee pulley – 115Nm),
Gearbox (3 vee pulley – 50Nm) and Flail (2 vee pulley – 41Nm)
These must be checked and tightness maintained after the 1
st
hour, then
daily, thereafter weekly
The “Allen Screws” tighten the taper lock. They may require loctite to secure.
The vacant holes are to aid removal.
Regularly
Check the condition of drive belts, ensuring they are aligned and properly
tensioned to avoid any unnecessary belt wear
Remove all guards for access when tensioning belts, ensure belts are running
in line after adjustment
Check there is no wrapping of string, plastic, grass or other debris on rear
roller
Check wheel nuts for tightness (130Nm)
Tyre pressures: Turf Tyres – 26 psi max Road Tyres – 23 psi max
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