Bar Axle - New Holland T7030 Operator's Manual

SECTION 3 - - FIELD OPERATIONS

BAR AXLE

(where fitted)
CAUTION
Your tractor is produced with lights that meet lighting
regulations when operating or travelling on the public
highway. If the wheel track setting is adjusted beyond
the initial factory position then you may be required
to reposition the lights or fit auxiliary lighting to
comply with legal requirements. Additionally, before
travelling on the highway, ensure that the overall
tractor width does not exceed the maximum
permitted in your country.
INTRODUCTION
Tractors equipped with a bar axle may have a steel
or cast centre disc (2) Figure 220 mounted on a cast
iron hub (3). The hub is clamped to the bar axle (1).
With a cast centre disc, the hub is an integral part of
the disc.
NOTE: Variable track wheels (type 1, 2 or 3), are not
available on tractors with 50 Km/h transmission.
Three bar axle lengths are available -- 2490 mm (98
in.), 2845 mm (112 in.) and 3022 mm (119 in.). The
wheel may be moved along the bar to provide a range
220
of track widths. Depending on tyre size, a range of
190 mm (7.5 in.) per wheel or 380 mm (15 in.) overall
is available with the 98 inch axle. If the 112 inch axle
is installed, the range is increased to 735 mm (29 in.)
and with the 119 inch axle, 914 mm (36 in.) overall.
Track width adjustment is effected by moving the
complete wheel/hub assemblies in or out on the axle
shaft. Additionally, repositioning the wheel rim on the
centre disc and/or the rim on the axle hub or by
inter-changing the rear wheels provides a greater
range of adjustment.
Tractor wheels are very heavy so it is recommended
that you do not remove them to reposition the rims
on the disc unless the track setting required is
outside the slide range of the bar axle.
3--136