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MIL-S-22999/2A(AS)
Rated inlet fluid temperature ("F): +275 +0, -10
21.5; maximum allowable flow at no-load
Rated fluid flow, max (gpm):
operation is 23.0 gpm.
47 at 3700 psig differential pressure
Rated torque (lb-ft):
Rated drive shaft speed (rpm): 4000
Automatic shutoff control:  The cutout switch shall be normally closed;
it shall open at cutout speed.  The switch shall withstand a surge current of
2 amperes at 28 volts inductive load at -65F.
Drive shaft cutout speed (rpm): 6700
Initial calibration:
Hydraulic  fluid  flow,  max  (gpm):
Zero to max cutout drive speed: 21.5
No-load drive speed:  23.0
Performance:
Minimum Starter Drive Torque (lb-ft)
and Corresponding Starter Drive Speeds (rpm)
Pressure
Differential
(PSIG)
Speed Torque Speed Torque Speed Torque Speed Torque
1000
50
4000
47
37.5
6000
30
3700
0
The
No-load operation:  The starter shall be operated for two minutes.
starter free-running speed obtained during this test, or the maximum speed
attained before automatic cutback, shall not be less than 8000 rpm.
Proof pressure test:  With the load device adjusted to limit starter
output drive speed to rated speed rpm and at rated inlet temperature, the
starter shall be operated for five minutes at 5000-psig inlet pressure and
1250 psig outlet pressure.  There shall be no leakage from the starter
sufficient to form a drop, except from the output shaft seal from which a
maximum leakage of 5 cc per hour is allowable.
Endurance test:  The starter shall be subjected to a 1200 cycle endurance
test as outlined herein.  The following schedule for fluid inlet temperature
and fluid inlet pressure shall be maintained:
Inlet Fluid
Inlet Fluid
Number of
Temperature ("F)
Pressure (psig)
Cycles
275
400
3750
220
3900
600
160
3750
200

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