OP-755 Part 2 Pages 197-401 - Personal Page of GENE SLOVER
OP-755 Part 2 Pages 197-401 - Personal Page of GENE SLOVER
OP-755 Part 2 Pages 197-401 - Personal Page of GENE SLOVER
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288<br />
ual control. Observe the accuracy <strong>of</strong>' car st.op-.<br />
ping positions, functioning <strong>of</strong> all interlock,<br />
facili ties, operation <strong>of</strong> the brake, the free,<br />
wheeling device and the car safety latch.<br />
72. Hydrau lie 0 i l. - The oil to be used in the power<br />
plant system, the dashpot and the door operating system is that<br />
designated in Ordnance Specification No. 1113. All oil when<br />
inserted must be strained through a fine mesh wire strainer<br />
<strong>of</strong> at least 120 wires to the inch. The use <strong>of</strong> cloth strainers<br />
is not desirable since such material tends to cause an accumulation<br />
<strong>of</strong> lint in the system. Newassemblies should be drained<br />
after fifteen hours operation and should then be thoroughly<br />
flushed clean and refilled with fresh oi1. The system must<br />
be inspected and analysis <strong>of</strong> oil sample must be performed at<br />
least once monthly. If there is evidence <strong>of</strong> sludge, water or<br />
acidi ty, trace source, drain, flush and refill with fresh oil.<br />
The amount <strong>of</strong> oil required for one power plant system is 32<br />
gallons. The system requires venting as indicated in paragraph<br />
69. '<br />
CAUTION: Whenfilling the systemwithoil for<br />
the first time, or after the system has been<br />
completely drained, the following 'procedure<br />
is to be used. Remove the filler plug from<br />
the top <strong>of</strong> the B-end and fill the hydraulic<br />
motor case with oil. Next fill the A-end<br />
through the oil filler to the top oil level<br />
petcock. After the equipment has been run for<br />
a short time additional oil, will have to be<br />
added in the A-end to bring the oil level to<br />
a point between the two oil level petcocks.<br />
73. Lubrication. - The powder hoist assemblies must be<br />
lubricated with the lubricants and according to the frequencies<br />
specified on-the four lubrication charts appended.<br />
74. Buffer fluid. -The liquid to be used in the buffers<br />
at the foot <strong>of</strong> the trunk is standard recoil cylinder liquid<br />
as specified in the latest revision <strong>of</strong>.Ordnance Data No. 1914.<br />
75. Speed limitations - s an ua t Control. -Tn manual con-<br />
, trol operation, without the control pump, air is drawn into<br />
the main circuit. This causes vibration <strong>of</strong> pipe lines and considerable<br />
noise, the amount <strong>of</strong> air and resultant vibration and<br />
noise d'epending' upon the speed that the powder car is hoisted<br />
or lowered.<br />
In order to reduce the amount <strong>of</strong> air entering the system, the<br />
control should not be positioned to more than one-third <strong>of</strong> its<br />
full stroke movement (for both hoisting and lowering). Con-
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