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Kubota tractor (BX25DLB-AU, LA240A, LA240A, AU-SG, BT602). OPERATOR'S MANUAL - part 28

PERIODIC SERVICE OF THE TRACTOR

Cleaning Panel and Radiator Screen

To avoid personal injury:
A

Be sure to stop the engine and remove the key
before removing the screen.

Before checking or cleaning it, wait long
enough until it cools down.

1. Check panel screen to be sure they are clean from

debris.

2. Detach the radiator screen, and then remove all the

foreign material.

If the dust or chaff is accumulated in the battery
compartment, open the panel and clean completely.

Panel and radiator screen must be clean from debris
to prevent engine from overheating and to allow good
air intake for air cleaner.

Be sure to reinstall the panel on the pillar completely
to prevent the invasion of dust.

Be sure to stop the engine to avoid personal injury and
to allow good air intake for air cleaner.

Checking Brake Pedal

1. Inspect the brake pedal for free travel, and smooth

operation.

2. Adjust if incorrect measurement is found:

(See "Adjusting Brake Pedal" in "EVERY 100 HOURS"
in "PERIODIC SERVICE OF THE TRACTOR"
section.)

Checking Gauges, Meters and Easy

Checker(TM)

1. Inspect the instrument panel for broken gauge(s),

meter(s) and Easy Checker(TM) lamps.

2. Replace if broken.

Checking Head Light, Hazard Light etc.

1. Inspect the lights for broken bulbs and lenses.
2. Replace if broken.

Checking Seat Belt and ROPS

1. Always check condition of seat belt and ROPS

attaching hardware before operating tractor.

2. Replace if damaged.

(1) Panel
(2) Knob
(3) Center pillar

(A) "DETACH"

(1) Radiator screen

(A) "DETACH"

PERIODIC SERVICE OF THE TRACTOR

Checking and Cleaning of Electrical

Wiring and Battery Cables

To avoid personal injury:
A

A loosened terminal or connector, or damaged
wire may affect the performance of electrical
components or cause short circuits. Leakage
of electricity could result in a fire hazard, a
dead battery or damage to electrical
components.

Replace damaged wires or connections
promptly.

If a fuse blows soon after replacement, DO NOT
USE A LARGER THAN RECOMMENDED FUSE
OR BYPASS THE FUSE SYSTEM.

Many wiring connections are protected by
waterproof plugs, plug and unplug these
connections carefully and make sure they are
sealed correctly after assembly.

Accumulation of dust, chaff or spilled fuel
deposits around the battery, electrical wiring,
engine or exhaust system are a fire hazard.
CLEAN THESE AREAS BEFORE STARTING
WORK.
To avoid premature electrical malfunctions DO
NOT APPLY high pressure water directly to
battery, wiring, connectors, electrical
components or instrument panel.

Inspect the following Regularly:
1. Check wiring for chafed or cracked insulation.
2. Check wiring harness clamps. Replace if necessary.
3. Check connectors and terminals for looseness,

contamination or overheated (discolored)
connections.

4. Check instrument panel for correct operation of

switches and gauges.

Consult your KUBOTA Dealer regarding maintenance,
diagnosis and repair.

Checking Movable Parts

If any of the movable parts, such as levers and pedals, is
not smoothly moved because of rust or anything sticky, do
not attempt to force it into motion.
In the above case, remove the rust or the sticky thing, and
apply oil or grease on the relevant spot.
Otherwise, the machine may get damaged.

EVERY 50 HOURS

Lubricating Grease Fittings

Apply a small amount of multipurpose grease to the
following points every 50 hours:
If you operated the machine in extremely wet and muddy
conditions, lubricate grease fittings more often.

(1) Grease fitting (Speed control pedal)

(1) Battery terminals

PERIODIC SERVICE OF THE TRACTOR

Checking Engine Start System

To avoid personal injury:
A

Do not allow anyone near the tractor while
testing.

If the tractor does not pass the test, do not
operate the tractor.

Preparation before testing.

1. Sit on operator's seat.
2. Set the parking brake and stop the engine.
3. Shift the range gear shift lever to "NEUTRAL" position.
4. Check the speed control pedal "NEUTRAL" position.
5. Shift the PTO clutch lever to "OFF" position.

Test 1: Switch for the speed control pedal

1. Make sure that the range gear shift lever is set in

"NEUTRAL" position.

2. Depress the speed control pedal.
3. Turn the key to "START" position.
4. The engine must not crank.
5. If it cranks, consult your local KUBOTA Dealer for this

service.

Test 2: Switch for the PTO clutch lever

1. Make sure that the range gear shift lever is set in

"NEUTRAL" position.

2. Make sure that the speed control pedal is set in

"NEUTRAL" position.

3. Shift the PTO clutch lever to "ON" position.
4. Turn the key to "START" position.
5. The engine must not crank.
6. If it cranks, consult your local KUBOTA Dealer for this

service.

Checking OPC System

To avoid personal injury:
A

Do not allow anyone near the tractor while
testing.

If the tractor does not pass the test, do not
operate the tractor.

Preparation before testing.

Test 1: Switches for the operator's seat and the
speed control pedal

1. Start the engine.
2. Depress the speed control pedal.
3. Stand up. (Do not get off the machine.)
4. The engine must shut off after approximately 1

second.

5. If it does not stop, consult your local KUBOTA Dealer

for this service.

Test 2: Switches for the operator's seat and the
PTO clutch lever.

1. Start the engine.
2. Engage the PTO clutch lever.
3. Stand up. (Do not get off the machine.)
4. The engine must shut off after approximately 1

second.

5. If it does not stop, consult your local KUBOTA Dealer

for this service.

(1) Range gear shift lever (Hi-Lo)
(2) PTO clutch lever
(3) Speed control pedal

PERIODIC SERVICE OF THE TRACTOR

Checking Wheel Bolt Torque

To avoid personal injury:
A

Never operate tractor with a loose rim, wheel,
or axle.

Any time bolts are loosened, retighten to
specified torque.

Check all bolts frequently and keep them tight.

Check wheel bolts regularly especially when new. If they
are loose, tighten them as follows.

EVERY 100 HOURS

Battery

To avoid the possibility of battery explosion:
For the refillable type battery, follow the
instructions below.
A

Do not use or charge the refillable type battery
if the fluid level is below the LOWER (lower limit
level) mark. Otherwise, the battery component
parts may prematurely deteriorate, which may
shorten the battery's service life or cause an
explosion. Check the fluid level regularly and
add distilled water as required so that the fluid
level is between the UPPER and LOWER levels.

To avoid personal injury:
A

Never remove the battery cap while the engine
is running.

Keep electrolyte away from eyes, hands and
clothes. If you are spattered with it, wash it
away completely with water immediately and
get medical attention.

Keep open sparks and flames away from the
battery at all times. Hydrogen gas mixed with
oxygen becomes very explosive.

Wear eye protection and rubber gloves when
working around battery.

Mishandling the battery shortens the service life and
adds to maintenance costs.
The original battery is maintenance free, but needs
some servicing.
If the battery is weak, the engine will be difficult to start
and the lights will be dim. It is important to check the
battery periodically.

When exchanging an old battery for new one, use
battery of equal specification in table below.

(1) 149.2 to 179.0 N-m ( 15.2 to 18.3 kgf-m)

(1) 108.5 to 130.2 N-m ( 11.1 to 13.3 kgf-m )

The factory-installed battery is of non-refillable type.
If the battery is weak, charge the battery or replace it
with new one.

Battery

Type

Volts

(V)

Reserve

Capacity

(min)

Cold

Cranking

Amps

Normal

Charging

Rate(A)

526RMF

540

6.5

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