TM 5-3805-263-14&P-3
SPECIFICATIONS
HYDRAULIC PUMP
(8J498) Piston (Slipper)
(Part of 8J6155 Pump Group)
Rotation is counterclockwise when seen from drive end.
Type of pump: Axial piston (variable displacement).
For test use SAE 10W oil at 150F (65C).
SPEED (engine or pump) ........................ 2000 rpm
Case drain .....................2.5 U.S. gpm (10 liter/min)
at a pressure of.................... 2150 psi (14,800 kPa)
Case drain .....................3.5 U.S. gpm (13 liter/min)
at a pressure of.................... 3500 psi (24,000 kPa)
The pump output tests are made with the pump at full
stroke.
SPEED (engine or pump) ........................ 2000 rpm
Output ...........................46 U.S. gpm (174 liter/min)
at a pressure of........ less than 1000 psi (6900 kPa)
SPEED (engine or pump) ........................ 1000 rpm
Output .............................23 U.S. gpm (87 liter/min)
at a pressure of........ less than 1000 psi (6900 kPa)
(1)
Torque to start turning shaft with pump
more than 1/2 full of oil ................10 lb. ft. (14 Nm)
Torque to keep shaft turning..........7 lb. ft. (10 Nm)
(2)
8J6298 Spring:
Length under test force................1.91 in. 45.8 mm)
Test force........................... 145 12 lb. (645 53 N)
Free length after test ................. 2.80 in. (71.1 mm)
Outside diameter ....................... 1.93 in. (49.0 mm)
(3)
Shim to get clearance (4) between plate
and slipper on piston (check three places,
120 apart ............ 0.003 .001 in. (0.08 0.02 mm)
(12) Swashplate end
clearance ......... 0.000 to .005 in. (0.00 to 0.13 mm)
3-92
