GB-23
RANSOMES MASTIFF 91
SAFETY, OPERATORS, MAINTENANCE AND PARTS MANUAL
Fig.32
Fig.33
Fig.34
ADJUSTMENTS
Read the safety instructions
HEIGHT OF CUT ADJUSTMENT
The cutting height is determined by the position of
the front rolls in relation to the bottom blade;
variation of this setting is made by adjusting the
front roll:
1.
Loosen the bolts (Fig. 32) securing the front
roll brackets on both sides of the machine.
2.
Set the roll at the required height - raise the
height of cut by lowering the front roll and
reverse the procedure to reduce the height
of cut. Check that the setting is the same at
both sides of the machine.
3.
Tighten the bolts.
NOTE: The front roll should never be set so that
the bottom blade is pressing on the turf; this will
damage the spiral cutters, bottom blade and the
turf.
HANDLE (PEDESTRIAN MACHINE
ONLY)
The height of the handle can be adjusted to suit
the operator. Always raise the handle when fitting
and using the trailing seat to give clearance for
legs over undulating ground.
To adjust:
1.
Slacken the clamp bolts (Fig. 33)
2.
Move the handle to the required height.
3.
Re-tighten the bolts.
CYLINDER TO BOTTOM BLADE
ADJUSTMENT
To check that the cutting cylinder is set correctly to
the bottom blade: tilt the machine back, hold a thin
piece of paper between the edge of the blade and
spiral cutters, and turn the cylinder manually.
The paper should be cut cleanly along the length
of the bottom blade; if not, some adjustment is
necessary, DO NOT OVERTIGHTEN.
Adjustment is made by turning the adjustment
screws (Fig. 34) clockwise to move the cylinder
towards the blade.
It is recommended that an 1/8 of turn is made
alternatively to each screw, checking frequently
with the paper until the correct setting is achieved.
