Ten taboos in the repair and maintenance of special vehicles for drilling rigs are as follows:

1. Avoid only adding but not changing the oil

2. Avoid using butter indiscriminately

3. Avoid new cylinder liners and pistons

4. Avoid not checking the plunger stroke margin

5. Avoid inaccurate cylinder clearance measurement

6, avoid piston open flame heating

7. Avoid using emery cloth to polish the bearing bush　

8. Avoid tightening the bolts too tightly　　

9. Avoid high tire pressure

10. Avoid adding cold water to the water tank suddenly