1) first place pumps cement firm on the ground or stone to keep it level, and four pumps outrigger positioning locking pin and safety pin, so that removal of the tire or tires out of the ground.

• 首先将泵机置于坚定的水泥地面或石墩上，使其保持水平，并将泵机4个支腿的定位销和安全销锁紧，使轮胎脱离地面或卸掉轮胎。