An operator cabin may include a frame; a seat assembly supported by the frame; and one or more operator controls to control one or more components of a pipelayer machine, the operator controls being supported by the frame. The frame includes a front surface; a rear surface opposite the front surface; a first lateral surface; and a second lateral surface opposite the first lateral surface. The front surface may comprise a first front support structure and a second front support structure opposite the first front support structure. The rear surface may comprise a first rear support structure and a second rear support structure opposite the first rear support structure. A first distance between the first rear support structure and the second rear support structure may exceed a second distance between the first front support structure and the second front support structure.

A vehicle includes an auxiliary battery configured to power an electrical accessory, a traction battery configured to provide power to propel the vehicle, a winch including a motor and cable, and a controller configured to, responsive to a requested torque of the motor being less than a threshold, initiate transfer of power to the motor from the auxiliary battery, and initiate transfer of power to the motor from the traction battery otherwise.

This invention relates to a winch and to a method of using the winch. The winch is ideally adapted for mounting to the boom of a vehicle such as a mini-excavator, and is likely to find its greatest utility in relation to the removal of underground pipes, electricity conduits, fibre optic cables and the like, as well as in the bursting of pipes. The invention provides a winch comprising a support column, a base, a magazine, a drive mechanism and a mounting structure. The drive mechanism is connected to the magazine and is adapted to rotate the magazine in use. The support column connects the magazine to the base. The mounting structure is adapted for mounting to the boom of a vehicle. The winch has a rotatable connection between the base and the mounting structure which is securable in a chosen rotational position, so that the base of the winch can be correctly aligned regardless of the orientation of the vehicle.

The present disclosure provides a high-safety electric capstan including a hoisting mechanism, an electric motor configured to drive the hoisting mechanism to rotate, a user controller and an engagement assembly, and further including a control section electrically connected to a signal receiving actuator. The electric motor and the signal receiving actuator are electrically connected to the engagement assembly, respectively. The control section is configured for a user to send a trigger signal to the signal receiving actuator, the signal receiving actuator is configured to control an operation of the electric motor responsive to instructions from the user controller for a period of time when receiving the trigger signal, after the period of time, the signal receiving actuator is not responsive to instructions from the user controller. The solution of the present disclosure is advantageous for improving safety in use of an electric capstan.

A pipe replacement system and cable guide frame are shown. Configurations are shown that include plurality of guide pulleys attached to the cable guide frame to define a curved path between a pipe to be replaced and a cable pulling system. Configurations are shown where a pipe breaking tool is pulled over the plurality of guide pulleys for ease of removal after a replacement operation. Configurations are also shown that include a stationary splitter adjacent to the cable pulling system to prevent jamming of the cable pulling system.

The present disclosure is directed to systems and methods for removing or installing a pitch bearing of a wind turbine. The method includes installing a first pulley block at an up-tower location of the wind turbine and configuring a second pulley block with the pitch bearing. A pulley cable is routed from a ground location over the first pulley block to the second pulley block such that the second pulley block is configured to slide along the pulley cable. The method also includes rotating the pitch bearing to a tilted position. Thus, the method further includes lowering or lifting the pitch bearing in the tilted position so as to prevent the pitch bearing from colliding with the tower.

The present disclosure is directed to systems and methods for removing or installing a pitch bearing of a wind turbine. The method includes installing a first pulley block at an up-tower location of the wind turbine and configuring a second pulley block with the pitch bearing. A pulley cable is routed from a ground location over the first pulley block to the second pulley block such that the second pulley block is configured to slide along the pulley cable. The method also includes rotating the pitch bearing to a tilted position. Thus, the method further includes lowering or lifting the pitch bearing in the tilted position so as to prevent the pitch bearing from colliding with the tower.

A winch mounting system includes a truck that has a bed. A mounting unit is removably coupled to the bed. The mounting unit has a slidably adjustable width such that the mounting unit accommodates a variety of widths of the bed. A winch is selectively coupled to the mounting unit such that the winch is positioned in the bed. A button is coupled to the mounting member and the button may be manipulated. The button is electrically coupled to the truck. The button is electrically coupled to the winch such that the button turns the winch on and off.

A mount for attaching a winch to a vehicle. The mount allows the winch to be rotated to face the cable anchor during use, thereby preventing improper spooling of the cable.

A mount for attaching a winch to a vehicle. The mount allows the winch to be rotated to face the cable anchor during use, thereby preventing improper spooling of the cable.