Ransomes Commander 3520, Safety, Operation & Maintenance Manual

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6 CONTROLS
6.8 VARIABLE CYLINDER SPEED (B ) __________________________________
The speed of rotation of the cutting cylinders is
adjustable by means of the handwheel situated on
the right hand side of the operator to the rear of the
cutting unit lift levers. Rotate the hand wheel clockwise
to increase cylinder speed, anticlockwise to decrease
cylinder speed.
6.9 HYDRAULIC LIFT LEVERS (C,D,E) _________________________________
The cutting units can be raised and lowered by three control
levers situated on the right hand side beside the operator
and can be operated as follows:
Centre lever (C) controls Centre and RH & LH front Units No. 1,2,3
Right hand lever (D) controls R.H. Wing Unit No. 4
Left hand lever (E) controls L.H. Wing Unit No. 5
NOTE: If any unit is raised out of work then lowered into work again the cylinder will not rotate until
the mow foot switch is depressed.
To lift: Move the lever(s) rearwards and hold in position until the units are at the required height.
To lower: Move the lever(s) fully forwards and release, the unit(s) will lower to ground level. DO
NOT hold lever in down position.
NOTE: The units will only lift and lower when the engine is running.
IMPORTANT: If, when cutting, a lift control lever is accidentally pulled up, the cutting units will not float over
ground undulations until the lever is pushed fully down and allowed to return to neutral again.
6.10 UNIT COUNTERBALANCE CONTROL (F ) ____________________________
Cutting unit ground pressure can be varied within preset limits and is controlled by the handwheel on the right
hand side of the operators seat.
The handwheel is turned clockwise to reduce the ground weight of the cutting unit and to improve slope climbing
performance.
The handwheel is turned anticlockwise to increase ground weight of the cutting unit and this setting will reduce
the possibility of cutting unit "bounce" when working at high speed on undulating ground. The normal position
for this control is midway between the minimum and maximum settings.