950B STEERING SYSTEM
TM 5-3805-258-24-1
SPECIFICATIONS
HYDRAULIC PUMP FOR IMPLEMENT,
STEERING AND PILOT SYSTEMS
(4T6914)
Rotation is counterclockwise when seen from drive end.
Type of pump: VANE.
For test, use SAE 10W oil at 65° C (150° F).
Opening pressure of relief valve . . 2400 ~ 340 kPa (350 f 50 psi)
ata flow of . . . . . . . . . . . . . . . . . .
4 liter/rein (1 U.S. gpm) minimum
(1) Torque for bolts (four) . . . . . . . . . . . 55 t 7 N.m (4O t 5 lb, ft. )
(2) Torque for bolts (four) . . . . . . . 95 f 17 N.i-n (70 i 5 lb. ft. )
DRIVE END SECTION (Implement)
Test at Full Speed:
Output . . . . . . . . . . . . . . . . . . . . . . . . . 2271iter/min (60 U. S.gpm)
ata pressure of . . . . . . . . . . . . . . . 690k Pa(lOO psi)
with pump at . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2092rpm
with engine at
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2200 rpm
Output . . . . . . . . . . . . . . . . . . . . . . . . . 2161iter/min (57 U, S.gpm)
ata pressure of . . . . . . . . . . . . . . . . . . . 6900 kPa(lOOO pai)
with pump at . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2092rpm
with engine at . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2200rpm
Test at Half Speed
Output . . . . . . . . . . . . . . . . . . . . . . . . . 1141iter/min (30 U. S.gpm)
ata pressure of . . . . . . . . . . . . . . . . . . . . . . 690k Pa(lOO psi)
with pump at
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1046 rpm
with engine at . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1100rpm
Output . . . . . . . . . . . . . . . . . . . . . . . . . . 961iter/min (26 US, gpm)
ata pressure of . . . . . . . . . . . . . . . . . . . . 6900 kPa(lOOO psi)
with pump at . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1046rpm
with engine at . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . llOOrpm
CENTER SECTION (Steering)
Test at Full Speed:
output . . . . . . . . . . . . . . . . . . . . . . .
138 liter/rein (36.5 U.S. gpm)
ata pressure of . . . . . . . . . . . . . . . . . . . . . . 690k Pa(lOO psi)
with pump at . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2092rpm
with engine at . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22r30rpm
Output . . . . . . . . . . . . . . . . . . . . . . . . . 1291iter/min (34 U, S.gpm)
ata pressure of . . . . . . . . . . . . . . . . . . . . 6900 kPa(lOOO psi)
with pump at . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..2092rpm
with engine at...........,.. . . . . . . . . . . . . . . . . 2200rpm
Test at Half Speed:
Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 681iter/min (16 U. S.gpm)
ata pressure of . . . . . . . . . . . . . 690k Pa(lOO psi)
with pump at . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1046rpm
with engine at . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . II Or)rpm
output . . . . . . . . . . . . . . . . . . . . . . . . . . 611iter/min (16 U, S,gpm)
ata pressure of . . . . . . . . . . . . . . . . . . . . 6900 kPa(lOOO psi)
with pump at . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1046rpm
with engine at . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1100rpm
COVER END SECTION (Pilot)
Teat at Full Speed:
Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 liter/rein (5 U.S. gpm)
at a preaaure of . . . . . . . . . . . . . . . . . . . . . . . 690 kPa (100 psi)
with pump at . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2092 rpm
with engine at . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22OO rpm
output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 liter/rein (4.8 U.S. gpm)
at a pressure of . . . . . . . . . . . . . . . . . . 6900 kPa (1000 psi)
with pump at . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2092 rpm
with engine at . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22OO rpm
Teat at Half Speed:
Output . . . . . . . . . . . . . . . . . . . . . 10 liter/rein (2,7 U.S. gpm)
at a pressure of . . . . . . . . . . . . . . . . . . . . . . . . . . 690 kPa (1OO psi)
with pump at . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1046 rpm
with engine at . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11OO rpm
output . . . . . . . . . . . . . . . . . . . . . . . . . .
9.8 liter/rein (2.6 U.S. gpm)
at a pressure of
. . . . . . . . . . . . . . . . . . . . . .
6900 kPa (1000 psi)
with pump at . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1046 rpm
with engine at . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1100 rpm
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