Abstract: A hydraulic circuit for a lift truck comprises a feed-through cylinder communicating with a free lift cylinder and a lift cylinder.

Abstract: A hydraulic circuit for a lift truck comprises a feed-through cylinder communicating with a free lift cylinder and a lift cylinder.

Abstract: An industrial truck has a vehicle frame (1), a lifting framework (4) attached to the vehicle frame (1) and at least one wheel arm which extends in the horizontal direction. The wheel arm is connected to the vehicle frame (1) and at the free end of which at least one running wheel (3) is arranged. Each wheel arm has a first longitudinal structural part (2) which is a component of the vehicle frame (1) and has a second longitudinal structural part (5) which is a component of the lifting framework (4). The running wheel (3) is arranged on the first longitudinal structural part (2). A screwed connection is provided for connecting the first longitudinal structural part (2) to the second longitudinal structural part (5).

Abstract: An industrial truck, in particular a reach truck or reach-fork truck, has a maintenance opening. At least the following components are accessible through the same maintenance opening: at least one electric connector (10, 16, 17), a hydraulic tank (4) for level monitoring and/or for topping up hydraulic fluid, and electrical fuses (9). Furthermore, a brake fluid container (7) can be accessible through the maintenance opening for level monitoring and/or for topping up brake fluid, as can a hydraulic oil filter (5). The maintenance opening can be closed with a door, preferably with a folding door (1).

Abstract: A lifting framework for an industrial truck has an extendible mast guided on a guide mast by rollers. Means are provided for bracing the extendible mast with the guide mast so as to prevent the extendible mast from inclining in the lateral direction of the lifting framework relative to the guide mast. The bracing means are configured such that, when the extendible mast is located in the top end position, a vertical movement of the extendible mast relative to the guide mast is prevented in the region of each of the two columns. A hydraulic lifting cylinder and a stop for the top end position of the extendible mast are arranged here in the region of each column.