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JD 7X30 COUGAR Operation Section 3-8
OPERATION
If bystanders approach within 300 feet while mower is in operation turn mower
switch “OFF” immediately! After shutdown, never leave the tractor or allow
bystanders to approach within 300 FEET of the unit until all motion stops
completely.
If cutter shaft jams and stops, turn mower switch to “OFF”, and swivel boom “AFT”.
Normally this action will clear the cutter head. If not, roll mower deck until adjacent to
the secondary boom, then lower boom to rest mower deck on ground. Shut off the
tractor, set parking break, allow all motion to cease. At that point it is safe to leave the
tractor and clear the cutter heads manually.
Begin each pass at the top side of the trees and work down with each consecutive
pass. Use a low speed to allow the cutting blades time to mulch as well as cut the
foliage. When the initial pass has been made, disengage the mower, and return boom
to a safe travel position. Return to starting point and make next pass, etc..
After the first day of operation, all bolts should be checked and tightened securely.
This should be done periodically to ensure the bolts do not become loose and cause
damage to the tractor or mower, or injury to the operator.
To ensure a clean cut, engine speed should be maintained at approximately 1900 –
2200 R.P.M. If the tractor slows to less than 1800 R.P.M., shift to the next lower gear.
DO NOT ride the clutch, this will cause premature clutch failure. The engine should
not be operated at any time at more than 2400 R.P.M. on the tractor tachometer.
For cutting brush it is usually best to stop the tractor and swivel the boom and
mower into foliage. The horizontal positioning action of the boom is designed to position
the cutting head and provide a limited pressure relief when excessive pressure is applied
to the boom.
DO NOT use excessive force when positioning cutting head into heavy
branches or stumps. Damage to the unit may result. It is best to let the
cutter head “eat away” slowly at heavy cutting jobs.
If foliage falls on top of mower deck causing tractor to become unstable,
move the boom “Forward” and “Out” to relieve tipping of the tractor.
Lower mower deck to ground and shut down unit. After
all motion stops, remove foliage from mower deck.
The mower will operate more efficiently in tougher conditions and with less power
if the knives are kept sharp. If the mower begins to vibrate, stop the tractor, check for
wire wrapped in the spindle or damaged knives. When replacing knives, replace all
knives with new knives to ensure proper balance so the mower will not vibrate. Severe
vibration will result, if knives with unequal wear are used.
Begin a pass at the top side of the trees and work down with each consecutive
pass. When cutting trees and shrubs, use a lower speed to allow the knives time to cut
as well as mulch the foliage.