Hydraulic Pump Information - Oregon Harvester Handbook

Hp = Horsepower
RPM = Revolutions per minute
d = Displacement,
cubic inches
T = Torque
Hp = GPM x psi
1714 x eff . (pump)
Hp = T x RPM
5252
Hp =
volts x amperes
745 .7
GPM =
231 cu . in .
Mechanical Timber Harvesting Handbook

Hydraulic Pump Information

Definitions
Pump Calculations
or Hp =
or Hp = T x RPM
Torque (lb .-ft .)
Pump Output Flow
RPM x d
eff. = Efficiency
psi = Pounds per square inch
GPM = Displacement,
cubic inches
.000583 x GPM x psi
eff . (pump)
63025
1 gal. = 231 cu . in .
Torque (lb .-ft .)
98