Safety Section Lift Truck Stability Base Remember that, unless otherwise indicated, the capacity load shown on the nameplate is for a standard lift truck with standard backrest, forks and mast, and having no special-purpose attachment. In addition, the capacity load assumes that the load center is no further from the top of the forks than it is from the face of the backrest. If these conditions do not exist, the operator may have to reduce the safe operating load because the truck stability may be reduced. The lift truck should not be operated if its capacity/nameplate does not indicate capacity load. NOTE :
If the load is not uniform, the heaviest portion should be placed closer to the backrest and centered on the forks. 1. Capacity/Nameplates originally attached to forklifts sold by DOOSAN shall not be removed, altered or replaced without DOO- SAN’s approval. For the lift truck to be stable (not tip over forward or to the side), the CG must stay within the area of the lift truck stability base Р a triangular area between the front wheels and the pivot of the steer wheels. If the CG moves forward of the front axle, the lift truck will tip forward. If the CG moves outside of the line on either side of the stability base, the lift truck will tip to the side.
Dynamic forces (braking, acceleration, turning) also affect stability and can produce tipover even when the CG is within the stability triangle. Capacity Load (Weight and Load Center) W ARN I N G 2. DOOSAN assumes no responsibility for lift trucks placed in service without a valid DOOSAN Nameplate. 3. If necessary to change your specification, contact your DOOSAN lift truck dealer. The capacity load of the lift truck is shown on the capacity/nameplate riveted to the truck. It is determined by the weight and load center. The load center is determined by the location of the CG of the load.
The load center shown on the nameplate is the horizontal distance from the front face of the forks, or the load face of an attachment, to the CG of the load. The location of the CG in the vertical direction is the same as the horizontal dimension. 23