WOLWA 20 ton truck crane GNQY-C20

(1)The crane driver must be professional and technical trained, examination qualified and getting the certificate can operate independently.

(2)The driver should be familiar with mechanical principle of mobile crane, maintenance rules, safety operation procedures, and strictly carry out according to regulations. It is forbidden to drink or body have not indications for operation.

(3)Before use people should check whether the job site is flat solid in detail, leg whether firm, operating handle, brake and other operating device is sensitive and reliable, to ensure working without anything abnormal.

(4) When hook lifting, the components must be the in the direction of the rear of the lifting. Lifting must first do a try hanging, to avoid excessive lifting, minimize the objects stay in the air, suspended substance to slow even when landing.

(5) When working, the abrasion of wire rope should be often observed. When the crane boom angle is large, the hanging material should first be down to the position, in keeping the sling tension condition, then lower hoist boom, loose rope, and pick the hook.

(6)Hoist boom lift must fall back when: do not lower down the arm when lifting heavy objects. The throttle is smaller when lowing the arm and bigger when lifting. Rotary motion is to be steady, not sudden reversal, when close to the rated weight load, shall not air rotary when  the ground clearance is 0.5 m above .

(7)It is strictly prohibited to lifting when driving, the lift arm must be put on the bracket when driving, the hook is in the bumper, and the wire rope to pull tight.

(8) After the completion of the work, lifting legs and sawing arm shall not simultaneously. Driving on the highway, it is imperative to strictly abide by the traffic rules, turning slowly, and strictly control the speed of the car on the way down.