A power machine (100; 200) comprising: a frame (110; 210); a cab pivotally mounted to the frame such that the cab can be pivoted relative to the frame; and a power conversion system, the power conversion system comprising: a hydraulic pump assembly coupled to the frame; first and second mechanical control linkages coupled to the hydraulic pump assembly; mechanical controls mounted in the cab and configured to pivot with the cab relative to the frame, the mechanical controls including first and second control levers (505A, 505B); and releasable junctions (636A, 636B) between the mechanical controls mounted in the cab and the first and second mechanical control linkages, the releasable junctions configured to translate movement of the first and second control levers, respectively, to the first and second mechanical control linkages when the cab is in a lowered position relative to the frame, wherein the releasable junctions are configured to break a connection between the mechanical controls mounted in the cab and the first and second mechanical control linkages when the cab is pivoted to a position away from the lowered position; wherein the power machine is characterised by the power conversion system further comprising a first adjustment arm pivotally coupled to the first mechanical control linkage using a first torsion bushing to translate motion of the first control lever to the first mechanical control linkage; a second adjustment arm pivotally coupled to the second mechanical control linkage using a second torsion bushing to translate motion of the second control lever to the second mechanical control linkage; wherein the first and second adjustment arms include adjusting cross bolts (607A, 607B) to calibrate particular positions of the first and second control levers to desired hydraulic pump assembly outputs. a frame (110; 210); a cab pivotally mounted to the frame such that the cab can be pivoted relative to the frame; and a power conversion system, the power conversion system comprising: a hydraulic pump assembly coupled to the frame; first and second mechanical control linkages coupled to the hydraulic pump assembly; mechanical controls mounted in the cab and configured to pivot with the cab relative to the frame, the mechanical controls including first and second control levers (505A, 505B); and releasable junctions (636A, 636B) between the mechanical controls mounted in the cab and the first and second mechanical control linkages, the releasable junctions configured to translate movement of the first and second control levers, respectively, to the first and second mechanical control linkages when the cab is in a lowered position relative to the frame, wherein the releasable junctions are configured to break a connection between the mechanical controls mounted in the cab and the first and second mechanical control linkages when the cab is pivoted to a position away from the lowered position; wherein the power machine is characterised by the power conversion system further comprising a first adjustment arm pivotally coupled to the first mechanical control linkage using a first torsion bushing to translate motion of the first control lever to the first mechanical control linkage; a second adjustment arm pivotally coupled to the second mechanical control linkage using a second torsion bushing to translate motion of the second control lever to the second mechanical control linkage; wherein the first and second adjustment arms include adjusting cross bolts (607A, 607B) to calibrate particular positions of the first and second control levers to desired hydraulic pump assembly outputs. a hydraulic pump assembly coupled to the frame; first and second mechanical control linkages coupled to the hydraulic pump assembly; mechanical controls mounted in the cab and configured to pivot with the cab relative to the frame, the mechanical controls including first and second control levers (505A, 505B); and releasable junctions (636A, 636B) between the mechanical controls mounted in the cab and the first and second mechanical control linkages, the releasable junctions configured to translate movement of the first and second control levers, respectively, to the first and second mechanical control linkages when the cab is in a lowered position relative to the frame, wherein the releasable junctions are configured to break a connection between the mechanical controls mounted in the cab and the first and second mechanical control linkages when the cab is pivoted to a position away from the lowered position; wherein the power machine is characterised by the power conversion system further comprising a first adjustment arm pivotally coupled to the first mechanical control linkage using a first torsion bushing to translate motion of the first control lever to the first mechanical control linkage; a second adjustment arm pivotally coupled to the second mechanical control linkage using a second torsion bushing to translate motion of the second control lever to the second mechanical control linkage; wherein the first and second adjustment arms include adjusting cross bolts (607A, 607B) to calibrate particular positions of the first and second control levers to desired hydraulic pump assembly outputs.