TB 1--1520--237--20--219
NOTE
Sound of directional control valve being energized should be heard and
position indicator should pivot.
(f) Place fire extinguisher switch to reserve, then release to OFF.
NOTE
Multimeter should indicate 28 VDC when switch is placed to reserve.
(g) Push APU (T--Handle up while second individual is observing directional control valve.
NOTE
Sound of directional control valve de--energizing should be heard and posi-
tion indicator should return to initial position.
(h) Turn off all electrical power and disconnect battery (para 1--6--13.)
(i) Disconnect multimeter leads from no. 1 reserve wires w3167A20 and W3166A20N.
(5) No. 2 reserve fire extinguishing bottle.
(a) Connect multimeter leads to wires W3168A16 and W3169A16N.
(b) Pull engine controls quadrant #2 ENG EMER OFF lever (T--Handle) back.
(c) Place fire extinguisher switch to reserve, then release to OFF.
NOTE
Multimeter should indicate 28 VDC when switch is placed to reserve.
(d) Push #2 ENG EMER OFF lever (T--Handle) forward.
(e) Turn off all electrical power (para 1--6--13).
(f) Disconnect P243 and P902 from left hand relay panel.
(g) Install an insulated jumper wire across P243--Z and P902--G (lower case "G").
(h) Connect battery (para 9--4--34).
NOTE
Multimeter should indicate 28 VDC.
(i) Connect battery (para 9--4--34).
(j) Remove jumper wire from P243 and P902, then reconnect to left hand relay panel.
(k) Disconnect multimeter leads from no. 2 reserve wires W3168A16 and W3169A16N.
(l) Go to shutdown.
(6) Shutdown.
(a) Connect electrical wiring to squib terminals (figure 12--2--2--1 and figure 12--2--2--2, sheet
4). Torque screws and nuts to 9 inch--pounds.
(b) Connect battery (para 9--4--34).
(c) Make sure area is clean and free of foreign material.
(d) Close and latch APU door.
d.
Upon the completion of all inspections IAW para 8.
(1) If completion of all inspections IAW para 8b. and 8c reveal the wires are mislabeled, proceed
(2) If completion of the inspections IAW para 8b and 8c reveal thee wires are misrouted, proceed
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