Usage:
Section A:
Rotation (seen from the drive end) ... counterclockwise
Test on test stand, with SAE 10W oil at 120° F (49° C)
Output ... 51 U.S. gpm(193 liter/min)
Section B:
Rotation (seen from the drive end) ... counterclockwise
Test on test stand, with SAE 10W oil at 120° F (49° C)
Output ... 72 U.S. gpm(272 liter/min)
Output ... 38 U.S. gpm(144 liter/min)
Scavenge pump end (Section A)
(1) Diameter of drive shaft and idler shaft (new) ... .8000 ± .0002 in.(20.320 ± 0.005 mm)
Bore in bearings for drive shaft and idler shaft (new) ... .8016 ± .0003 in.(20.361 ± 0.008 mm)
(2) Length of gears (new) ... 2.2503 ± .0010 in.(57.158 ± 0.025 mm)
Depth of bores for gears (new) ... 2.2553 ± .0008 in.(57.285 ± 0.020 mm)
Spacer assembly
(3) Diameter of drive shaft and idler shaft (new) ... .8747 ± .0002 in.(22.217 ± 0.005 mm)
Bore in bearings for drive shaft and idler shaft (new) ... .8763 ± .0003 in.(22.258 ± 0.008 mm)
Pump body assembly (Section B)
(4) Length of gears (new) ... 3.1250 ± .0010 in.(79.375 ± 0.025 mm)
Depth of bores for gears (new) ... 3.1300 ± .0008 in.(79.502 ± 0.020 mm)
(5) Diameter of drive shaft and idler shaft (new) ... .8747 ± .0002 in.(22.217 ± 0.005 mm)
Bore in bearings for drive shaft and idler shaft (new) ... .8763 ± .0003 in.(22.258 ± 0.008 mm)
(6) 2S2760 Spring (oil pressure relief valve):
Length under test force ... 4.64 in.(117.9 mm)
Test force ... 110 ± 6 lb.(490 ± 27 N)
Free length after test ... 6.02 in.(152.9 mm)
Outside diameter ... 1.063 in.(27.00 mm)
SCAVENGE PUMP
(7) Bearing junction.
(8) Position of bearing junction from the centerline through bearing bores ... 30° ± 15°
(9) Install bearings in bottom of gear bores to a depth of ... .060 ± .010 in.(1.52 ± 0.25 mm)
NOTE: Rotation of pump must be free when turned by hand.