Kubota tractor (BX25DLB-AU, LA240A, LA240A, AU-SG, BT602). OPERATOR'S MANUAL - part 22

57

TIRES, WHEELS AND BALLAST

[Spill guard model]

To avoid personal injury or death:
A

Do not exceed ROL (Rated operation load).

A

Do not operate the loader without counter
weight.

A

Do not exceed 10 km/h when travelling with
load.

A

ROL is calculated with standard bucket.
Optional attachments (4IN1 bucket etc.) will
reduce ROL.

[With counter weight]

[With backhoe]

*Be sure to install the counter weight approved by
 KUBOTA.

The use of a counter weight significantly reduces the front
axle and tire load during loader operation. It also
increases the fore/aft stability of the tractor/loader by
shifting weight from the front axle to the rear axle. Failure
to use the recommended counter weight can result in
damage to the tractor, reduced braking capability, and
instability of the tractor/loader.

A

Water ballasting the rear tires of the tractor does not
reduce the front axle load.

Rated operation load (ROL)

190 kg

Counter weight required

*170 kg

Rated operation load (ROL)

220 kg

(1) Counter weight

58

OPERATING THE LOADER

OPERATING THE LOADER

The loader should be operated with the tractor engine
speed depending on the application and the operator's
level of experience. Excessive speeds are dangerous,
and may cause bucket spillage and unnecessary strain on
the tractor and loader.
When operating in temperatures below -1 C, run the
tractor engine below 1200 rpm until the oil temperature
exceeds -1 C.
The following text and illustrations offer suggested loader
and tractor operating techniques.

To reduce the possibility of roll over:

A

It is not recommended that the loader be attached
when operating another implement on a hillside.

A

When operating the loader in rough terrain, remove
the mower to avoid damage to the mower.

FILLING THE BUCKET

Approach and enter the pile with a level bucket.

Ease control lever toward you and then left to rollback and
lift the bucket.

The rollback and lifting of the bucket will increase
efficiency because a level bucket throughout the lifting
cycle resists bucket lift and increases breakaway effort.

A

Do not be concerned if the bucket is not completely
filled during each pass. Maximum productivity is
determined by the amount of material loaded in a
given period of time. Time is lost if 2 or more attempts
are made to fill the bucket on each pass.

LIFTING THE LOAD

When lifting the load, keep the bucket positioned to avoid
spillage.

To avoid serious personal injury:

A

Do not attempt to lift bucket loads in excess of the
loader capacity.

A

Before raising the bucket to full height, make sure
the tractor is on level ground. If not, it may tip over,
even if the tractor is not moving.

59

OPERATING THE LOADER

CARRYING THE LOAD

Position the bucket just below the level of the tractor hood
for maximum stability and visibility, whether the bucket is
loaded or empty.

Use extreme care when operating the loader on a slope.
Keep the bucket as low as possible. This keeps the bucket
and tractor center of gravity low and will provide maximum
tractor stability.

To avoid serious personal injury:

A

Be extra careful when working on inclines.

A

When operating on a slope, always operate up and
down the slope, never across the slope.

When transporting a load, keep the bucket as low as
possible to avoid tipping, in case a wheel drops in a rut.

DUMPING THE BUCKET

Lift the bucket just high enough to clear the side of the
vehicle. Move the tractor in as close to the side of the
vehicle as possible, then dump the bucket.

LOWERING THE BUCKET

After the bucket is dumped, back away from the vehicle
while lowering and rolling back the bucket.

OPERATING WITH FLOAT CONTROL

During operation on hard surface, keep the bucket level
and put the lift control in the float position to permit the
bucket to float on the working surface. If hydraulic down
pressure is exerted on the bucket it will wear faster than
normal.

The float position will also avoid mixing of surface material
with stockpile material. The float position will reduce the
chance of surface gouging while removing snow or other
material, or when working with a blade.

OPERATING THE LOADER

60

LOADING FROM A BANK

Choose a forward gear that provides a safe ground speed
and power for loading.

To avoid the possibility of serious personal injury:

A

Exercise caution when undercutting high banks.

A

Dirt slides can be dangerous. Load from as low as
possible for maximum efficiency.

A

Loader lift and break-away capacity diminish as
loading height is increased.

Side cutting is a good technique for cutting down a big
pile. Wheel width should not exceed the bucket width for
this procedure.

If the pile sides are too high and liable to cause cave-in,
use the loader to break down the sides until a slot can be
cut over the top.

Another method for large dirt piles is to build a ramp to
approach the pile.

It is important to keep the bucket level when approaching
a bank or pile. This will help avoid gouging the work area.

PEELING AND SCRAPING

Use a slight bucket down angle, travel forward, and hold
the lift control forward to start the cut. Make a short cut
and break-out cleanly.

With the bucket level, start a cut at the notch
approximately 5 cm. deep. Hold the depth by feathering
the bucket control to adjust the cutting edge up or down.
When the front tires enter the notch, adjust the boom
cylinder to maintain proper depth.

Make additional passes until the desired depth is reached.
During each pass, use only the bucket control while at
working depth. This will allow you to concentrate on
controlling the bucket angle to maintain a precise cut.