Spearhead Trident
4000/5000/6000
15
Operation
Engage the PTO only when the tractor engine is at low revs to prevent shock load
damage to machine. Slowly increase the engine revs to achieve the standard 540
RPM PTO speed.
If at any time serious vibration occurs, stop the engine
immediately and check that no flails are missing,
(following all safety
precautions). The cause must be found and rectified immediately or other
components may be affected.
When in work, lower the machine to the ground carrying all its weight on the rear
roller, allowing the machine to follow the contours of the ground. Select a sensible
forward speed bearing-in-mind the density of growth, the terrain and the available
horsepower, taking extra care when turning, particularly on slopes.
Quality of finish is determined by the forward speed i.e. a slow speed will produce a
high quality of cut, whereas faster forward speeds are used when high output is first
priority.
When in work, always ensure the hydraulic spool valve that operates the mowing
decks is in float position to enable the decks to freely follow all contours of the
ground.
On trailed machines the constant velocity joint on the input PTO shaft can allow large
joint angles up-to 80 degrees, this should only be allowed for a brief period, for
example when turning on headlands out of work. To extend the maximum working
life of the PTO ensure the joint angle is no more than 16 degrees @ 540 rpm under
load.
Take care when turning not to run the tractor wheel against the mower drawbar or
the tractor lower links fouling the PTO, as this will result in serious damage.
Options
Scraper Wires
are available for the rear rollers to prevent a build up of debris but
under difficult conditions these may clog. In normal use turning will scrub the rollers
clean.
Rear Rubber Flaps
are available to prevent debris being thrown but may cause
clogging in difficult conditions.
Wheels
On trailed machines we offer an option of low ground pressure wheels, ideal
for turf, or alternatively a road wheel which is ideal for road transport, especially for a
machine which is used between several sites.
Warning
Maximum recommended joint angle is 16 degrees @ 540 rpm.
