MIL-DTL-62460E
2. For conformance to 3.4.6, record the high speed clutch pressures when input
speed is increased to 2500 +50 rpm.
3. For conformance to 3.4.7 and 3.4.4.b, record the pressure at lube port L and
the six lube pressure ports at 200 +20, and 800 +50 rpm input speed.
4. For conformance to 3.4.8, disconnect the port M hose from the sump and
measure flow (leakage) out port M at 800 +50 rpm input speed.
4.6.3.4 Lube pump high pressure output and auxiliary regulator in clutch brake mode. To
determine conformance to 3.4.4.b, 3.4.5, 3.4.6, 3.4.7, and 3.4.8 in clutch brake mode, repeat the
procedures of 4.6.3.3 except as follows:
a. In part a, place the selector in the clutch brake mode instead of the geared steer
mode.
b. In paragraph 1 of part b, record the minimum output speed required to produce
552 kPa at the low speed clutches, instead of at the high speed clutches.
c. In paragraph 2 of part b, record the low speed clutch pressure at 1800 +50 rpm
instead of the high speed clutch pressure at 2500 +50 rpm.
4.6.3.5 Lube pump low pressure output. To determine conformance to 3.4.9 and table II:
a.
Apply 1380 +35 kPa to control port M and hold that pressure.
b.
Close valve A (figure 2) at lube port L (do not apply flow to lube port L).
c.
Leave steer control lever at 0 steer position.
d.
Record the pressure at lube port L at the input speeds and conditions specified in
table II.
4.6.3.6 Clutch engagement. To determine conformance to 3.4.10, 3.4.18, and table III,
apply the procedures of 4.6.3.6.1 and 4.6.3.6.2.
4.6.3.6.1 Clutch engagement with control port M vented:
a. Apply 56 to 76 L/min flow into lube port L.
b. Apply 200 +20 rpm, CW, to the input shaft.
c. Measure the output shaft speeds at the steer lever positions and other conditions as
listed in table III.
4.6.3.6.2 Clutch engagement with pressure applied to control port M.
a.
Apply 56 to 76 L/min flow into lube port L.
b.
Apply 1380 +35 kPa to control port M and hold that pressure.
c.
Apply 200 +20 rpm, CCW (reverse), to the input shaft.
d.
Measure the output shaft speeds at the steer lever positions and other conditions as
listed in table III.
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