TM 55-1945-205-24-2
0305 00 3
0305 00
{2} If voltage is still present, disconnect VRO pump (12) from engine wiring harness (13).
{3} If no voltage is present with VRO pump (12) disconnected, VRO pump connector (14) or
pump (12) is faulty.
{4} If voltage is still present, instrument wiring harness (15) or engine wiring harness (13) is faulty.
8.
Connect rectifier/regulator grey lead (9) to engine terminal strip (10).
9.
Connect VRO pump (12) to engine wiring harness (13).
WARNING
10. Start RHIB engine and run at 1000 RPM. (TM 55-1945-205-10-2)
11. Using multimeter, read voltage to tachometer grey lead (8) and black lead (6) on dash terminal strip (7).
a.
If no voltage is present, go to Step 15.
b.
If voltage exceeds eight volts, tachometer (16) is faulty.
c.
If voltage is below eight volts,
{1} Disconnect the tachometer (16) from dash terminal strip (5) and verify an increase of one volt.
{2} If increase exceeds one volt, tachometer (16) is faulty.
{3} If increase is one volt, connect tachometer (16) to dash terminal strip (5).
{4} Disconnect the VRO pump (12) at the engine wiring harness (13) and verify an increase of one volt.
{5} If increase exceeds one volt, VRO pump (12) is faulty.
{6} If increase is one volt, disconnect tachometer (16) from dash terminal strip (5).
12
15
13
13
