DECKMASTER
5.0
HYDRAULIC MOTOR
TRW Ross MAF-06-0-06-A1
Displacement = 3.0 in3/ rev.
Torque (theoretical) = 0.47 in-lb/psi
Efficiencies: Volumetric
= 0.93
Torque
= 0.81
Overall
= 0.75
Required Input Hydraulic Pressure
(71.4)(2p)
=
= 185 psi
(3) (0.81)
Required Input Flow
(64.5)(3) =
=
= 208 in3/min = 0.90 gal/min
(0.93)
6.0
HYDRAULIC PUMP
Commercial Shearing P15H301GEAB5-17
Rated Pressure = 2,000 psi
Flow (@ 500 psi) = 5.06 gal/min
Efficiencies: Volumetric
= 0.85
Overall
= 0.70
Assume System Pressure Drop of 100 psi.
Required Pump Output Pressure = 185 + 100 = 285 psi.
Required Motor Power = (2 85)(5.06) = 1.20 HP
(1714)(0.70)
Note: The above analysis has assumed three times the required levelwind traveler head speed.
2-11 *
