Abstract: A cylinder assembly having a housing, a pump supported within the housing, a motor supported within the housing and operable to power the pump, and a power source supported by the housing and operable to supply power to the motor. A cylinder has a first end, an opposite second end, and a sidewall extending therebetween. A piston is movably supported by the cylinder, the pump being operable to supply hydraulic fluid to the cylinder to move the piston relative to the cylinder at least from a retracted position to an advanced position. A frame is coupled to the sidewall of the cylinder and supporting the pump and the motor.

Abstract: A control assembly, a tool and a method. The assembly may include a handle assembly including a first handle portion and a second handle portion, the handle assembly being removably connectable to a tool housing; and pump controls operable to control a pump to drive a tool drive mechanism and thereby an output member. Operation of the pump may require an operator's first hand on a first handle portion and the operator's second hand on a second handle portion. The pump may be operable under the control of the pump controls to drive the drive mechanism when the handle assembly is connected to the housing and when the handle assembly is disconnected from the housing.