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Technical data
Models 280, 280T, 280PT, 285, 285A and 290
General Data
Type designation..................................................................... Aquamatic 280, 285 & 290
Shift Mechanism ..................................................................... Self adjusting Silent Shift type of cone clutch,
servo assisted disengagement. Direction of rota-
tion adjustable.
Maximum propeller diameter ................................................... 16"
Tilting angle ............................................................................ 60°
Tilting device, model 280, 280T, 285 & 285A .......................... Electro mechanical tilting device
Power trim & tilting device, models 280PT, 285PT & 290 ....... “Power Trim”
Steering angle, max ................................................................ 30°
Overall gear ratio
Model 280, 280 B
1)
, 290 .......................................................... 1.61:1
Model 280, 280 C
1)
, 290 .......................................................... 1.89:1
Model 280, 280 D
1)
, 290 .......................................................... 2.15:1
Model 280T ............................................................................. 1.61:1
Model 280PT........................................................................... 1.61:1, 1.89:1
Model 285, 285A ..................................................................... 1.61:1
Model 290A............................................................................. 1.61:1
Model 290A............................................................................. 2.15:1
Weight
Model 280 ............................................................................... 52 kg (114.6 lb.)
Model 290 ............................................................................... 54 kg (119 lb.)
Gear backlash
Upper gear, measured directly on the gear wheels,
ratio 1.61:1........................................................................ 0.15–0.25 mm (0.006–0.010")
ratios 1.89:1 and 2.15:1 .................................................... 0.08–0.18 mm (0.003–0.007")
Lower gear, measured on the intermediate shaft splines joint.. 0.06–0.10 = 0.15–0.25 mm gear backlash in the
gear (0.002–0.004")
1)
On certain 280 drives the gear ratio is given by the marking B, C, or D.
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