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1.35
Commissioning the Mower continued
After making final adjustments, operate each cir-
cuit in turn to eliminate any air from the hydraulic
system and closely observe the movement of the
hydraulic hoses. Ensure that the motor hoses move
freely without impeding the movement of the cut-
terheads through the full range of travel. Observe
the hoses at each cutterhead to ensure that their
ability to follow ground contours is not impeded.
Ensure that hoses do not braid adjacent hoses or
other parts of the machine.
With all 7 cutterheads on the ground and all the
control levers in the 'Down/Cut' position, oper-
ate the 'Override' control lever (Short handle) to
raise all 7 cutterheads simultaneously. The cutting
cylinders should stop rotating instantly. With the
cutterheads fully raised, operate the override con-
trol lever to the 'Down/Cut' position to lower all 7
cutterheads simultaneously. The cutting cylinders
will start to rotate when they are 300 - 400 mm
above ground.
Electrical controls only (optional extra)
Reset the electrical control system: It will be
necessary to carry out this procedure when
powering up the electrical control system for the
first time or at any time when electrical power is
restored to the control box.
Before engaging the P.T.O operate the individual
cutterhead Lift/Lower Switches (3) the Override
Switch (2) and the Cutter Switch (4) to the neutral
(N), off position in order to reset the electrical con-
trol system. Ensure that the power interrupt button
(1) is reset by rotating the button clockwise until it
'pops' out.
Commissioning the Mower (Electric
Control)
This section refers to the TM7490 Only.
Operate the individual cutterhead Lift/Lower con-
trol switches and the override control switch to the
'Down/Cut' position. It is quite normal to experi-
ence some delay in the response of the controls for
the first time as air is purged from the hydraulic
system.
The cutting cylinders will begin to rotate in a
forward direction before the cutterheads reach the
ground.
COMMISSIONING THE MOWER
EMERGENCY STOP ONLY
STOP TRACTOR PTO FOR
FULL SAFETY ISOLATION
N
4
3
3
1.35
N
N
N
3
2
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