Removal And Installation Of Center Hinge Pin - Komatsu WA250-6 Shop Manual

Wheel loader

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Shop manual (51 pages)

Operation & maintenance manual (31 pages)

Table of Contents

Removal and installation of center

Special tools

793T-623-1170 Push tool

791-830-1410 Push tool

Commercially

Thickness gauge

Stop the machine on a level ground and set

the lock bar to the frame to fix the front and

rear frames.

Lower the work equipment to the ground,

stop the engine, apply the parking brake,

and put chocks under the tires.

Raise the front part of the chassis with the

work equipment and set block [1] under the

frame at the rear of the front wheels.

Set the work equipment horizontally and raise

the rear part of the chassis and set block [1]

under the frame at the front of the rear wheels.

Raise the counterweight with hydraulic jack [2],

and set stand [3].

Disconnect the cable from the negative (–)

terminal of the battery.

Precautions for handling refrigerant

Collect refrigerant (R134a) beforehand.

Ask professional traders for collecting and

filling the refrigerant (R134a).

Never release the refrigerant (R134a) to

the atmosphere.

If the refrigerant (R134a) gets inside

ones eyes, it may cause blindness.

Therefore, make sure to wear protec-

tive glasses when collecting or filling

the refrigerant. Collecting and filling

work must be conducted by a qualified

If the radiator coolant temperature is

high, you may scald yourself with the

hot coolant when disconnecting the

heater hoses and draining the cool-

ant. Wait until the coolant is cooled,

and then drain the coolant.