Kubota tractor (BX25DLB-AU, LA240A, LA240A, AU-SG, BT602). OPERATOR'S MANUAL - part 32

PERIODIC SERVICE OF THE TRACTOR

Replacing Fuse

The tractor electrical system is protected from potential
damage by fuses.
A blown fuse indicates that there is an overload or short
somewhere in the electrical system.
If any of the fuses should blow, replace with a new one of
the same capacity.

Before replacing a blown fuse, determine why the fuse
blew and make any necessary repairs. Failure to
follow this procedure may result in serious damage to
the tractor electrical system. Refer to the
troubleshooting section of this manual or your local
KUBOTA Dealer for specific information dealing with
electrical problems.

Protected circuit

[Fuse box]

Replacing Light Bulb

1. Head light

Take the bulb out of the light body and replace with a
new one.

2. Other lights

Detach the lens and replace the bulb.

(1) Fuse box

(1) Slow blow fuse

FUSE No.

CAPACITY (A)

Protected circuit

(1)

SOLENOID

(2)

HAZARD

(3)

ACC

(4)

WORKING LIGHT

(5)

DC OUTLET

(6)

TIMER RELAY

CAPACITY (A)

Protected circuit

Slow blow Fuse (50A)

Check circuit against
wrong battery connection

Light

Capacity

Head light

37.5W

Tail light

12.8W

Hazard light

23W

MAINTENANCE OF THE LOADER

MAINTENANCE OF THE LOADER

To avoid personal injury:
A

Be sure to check and service the tractor on a
flat surface with the bucket on the ground,
engine shut off, the key removed and the
parking brake on.

LUBRICATION

1. Lubricate all grease fittings every 10 hours of

operation. Also, lubricate joints of control lever linkage
every 10 hours. High quality grease designating
"extreme pressure" and containing Molybdenum
disulfide is recommended. This grease may specify
"Moly EP" on its label.

2. Daily before operation, check the tractor hydraulic fluid

level. If low, add as described in "PERIODIC
SERVICE OF THE TRACTOR" section. Also change
the filter element and the hydraulic fluid as
recommended in "PERIODIC SERVICE OF THE
TRACTOR" section.

RE-TIGHTENING OF HARDWARE

After 20 to 30 hours of initial loader operation, re-tighten
all mounting bolts and nuts to the required torque value as
specified in the "Tightening Torque Chart".

Tightening Bolts and Nuts

Tighten all bolts and nuts with required torque.

Before finally tightening all mounting hardware, start
the engine and apply down pressure to the bucket until
the loader raises the front wheels slightly, and make
sure that the mounting pins can be rotated easily.
Tighten all bolts and nuts in this position.

Location

Bolt / Nut

Required Torque

Main frame

M14

bolts or nuts

147 N-m

(15.0 kgf-m)

MAINTENANCE OF THE LOADER

DAILY CHECKS

1. Check all hardware daily before operation.

Tighten hardware to torque values as specified in the
"Tightening Torque Chart".

2. With the engine off and the bucket on the ground,

inspect all hoses for cuts or wear. Check for signs of
leaks and make sure all fittings are tight.

To avoid serious personal injury:
A

Escaping hydraulic fluid under pressure can
have sufficient force to penetrate skin, causing
serious personal injury. Before disconnecting
lines, be sure to relieve all pressure.
Before applying pressure to system, be sure all
connections are tight and that lines, tubes, and
hoses are not damaged.
Fluid escaping from a very small hole can be
almost invisible. Use a piece of cardboard or
wood, rather than hands, to search for
suspected leaks.

If injured by escaping fluid, see a doctor at
once. Serious infection or allergic reaction will
develop if proper medical treatment is not
administered immediately.

When removing the engine side covers, be
careful not to touch hot loader cylinders.
Allow all surfaces to cool before performing
maintenance.

EVERY 50 HOURS

Checking main frame bolt and nut torque

To avoid personal injury:
A

Never operate front loader with a loose main
frame.

Any time bolts and nuts are loosened, retighten
to specified torque.

Check all bolts and nuts frequently and keep
them tight.

Check main frame bolts and nuts regularly especially
when new. If they are loose, tighten them as follows.

(1) Hydraulic line
(2) Cardboard
(3) Magnifying glass

(1) Tightening torque : 147 N-m (15.0 kgf-m)

100 MAINTENANCE OF THE BACKHOE

MAINTENANCE OF THE BACKHOE

DAILY CHECKS

To avoid personal injury:
A

Never make any repairs, service or
adjustments when the hydraulic system is
under pressure, when the engine is running or
when any backhoe cylinder is under load.

Escaping hydraulic fluid under pressure can
have sufficient force to penetrate skin, causing
serious personal injury. Before disconnecting
lines, be sure to relieve all pressure. Before
applying pressure to system, be sure all
connections are tight and that lines, pipes and
hoses are not damaged.
Fluid escaping from a very small hole can be
almost invisible. Do not use hands to search
for suspected leak, use a piece of cardboard or
wood. If injured by escaping fluid, see a doctor
at once. Serious infection or allergic reaction
will develop if proper medical treatment is not
administered immediately.

1. The backhoe is run by the tractor hydraulic system.

Daily before operation, check the tractor hydraulic
level. If low, replenish the oil as described in
"PERIODIC SERVICE OF THE TRACTOR" section.
Also check the filter screen and change the hydraulic
fluid as recommended in "PERIODIC SERVICE OF
THE TRACTOR" section.

2. Check all hardware before daily operation. Tighten

hardware to torque values as specified in the "General
torque specification".

3. With the engine off and the bucket on the ground,

inspect all hoses for cuts or wear. Check for signs of
leaks and make sure all fittings are tight.

4. For safe operation, check that the mounting pin slide

bar is inserted into the hole of the main frame before
operation.

(1) Hydraulic line
(2) Cardboard
(3) Magnifying glass

(1) Oil port
(2) Dipstick

(1) Mounting pin
(2) Slide bar

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