1. A work vehicle comprising: a travel machine body; a radiator; a dust prevention part that is provided at a work-vehicle-body outer side of the radiator, and that is configured to remove dust from the air sent to the radiator; a cooler between the radiator and the dust prevention part; wherein the cooler is changeable in state from a usage state in which the cooler is positioned close to the radiator to a maintenance state in which the cooler is positioned remote from the radiator.

2. The work vehicle according to claim 1, wherein the cooler is changeable in state from the usage state to the maintenance state by swinging.

3. The work vehicle according to claim 2, wherein the cooler is changeable in state from the usage state to the maintenance state by swinging about a vertical axis.

4. The work vehicle according to claim 1, wherein the cooler is fixed to the travel machine body in the usage state.

5. The work vehicle according to claim 1, further comprising: a first cooler as the cooler; a third cooler as the cooler provided between the first cooler and the dust prevention part; wherein the first cooler is changeable in state from the usage state to the maintenance state by moving in a first direction, and the third cooler is changeable in state from the usage state to the maintenance state by moving in a second direction different from the first direction.

6. The work vehicle according to claim 5, further comprising: a second cooler as the cooler provided between the radiator and the first cooler.

7. The work vehicle according to claim 6, wherein the second cooler is configured to swing horizontally.

8. The work vehicle according to claim 6 or 7, wherein the second cooler is overlapping with both a part of the first cooler and a part of the third cooler as viewed in a left-right direction of a body of the travel machine body.

Description:SOFT COPY ATTACHED , C , Claims:We Claim:

1. A work vehicle comprising:
a travel machine body;
a radiator;
a dust prevention part that is provided at a work-vehicle-body outer side of the radiator, and that is configured to remove dust from the air sent to the radiator;
a cooler between the radiator and the dust prevention part;
wherein the cooler is changeable in state from a usage state in which the cooler is positioned close to the radiator to a maintenance state in which the cooler is positioned remote from the radiator.

2. The work vehicle according to claim 1, wherein the cooler is changeable in state from the usage state to the maintenance state by swinging.

3. The work vehicle according to claim 2, wherein the cooler is changeable in state from the usage state to the maintenance state by swinging about a vertical axis.

4. The work vehicle according to claim 1, wherein the cooler is fixed to the travel machine body in the usage state.

5. The work vehicle according to claim 1, further comprising:
a first cooler as the cooler;
a third cooler as the cooler provided between the first cooler and the dust prevention part;
wherein the first cooler is changeable in state from the usage state to the maintenance state by moving in a first direction, and the third cooler is changeable in state from the usage state to the maintenance state by moving in a second direction different from the first direction.

6. The work vehicle according to claim 5, further comprising:
a second cooler as the cooler provided between the radiator and the first cooler.

7. The work vehicle according to claim 6, wherein the second cooler is configured to swing horizontally.

8. The work vehicle according to claim 6 or 7, wherein the second cooler is overlapping with both a part of the first cooler and a part of the third cooler as viewed in a left-right direction of a body of the travel machine body.