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 TM 55-1905-220-14-3
Table 3-92. Ship's Course Indicator Troubleshooting (Cont).
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
7.
Dial of two-speed indicator moves alternately fast and slow, may lock occasionally.
Step 1.
No signal from IX control transformer.
Refer to Direct Support Maintenance.
Step 2.
IX and 36X synchros not set at proper electrical position.
Refer to Direct Support Maintenance.
8.
Indicator does not move freely in gimbals.
Step 1.
Deposits of salt or other corrosive material.
Clean.
Step 2.
Check for proper adjustment.
Refer to paragraph 3-218.
9.
Indicator glass dial.
Step 1.
Inspect for fogged glass.
Refer to Direct Support Maintenance.
Step 2.
Check for cracked or broken glass.
Refer to Direct Support Maintenance.
10.
Incorrect course.
Step 1.
Gyro Compass problems.
Refer to Direct Support Maintenance.
Step 2.
Incorrect alignment of pedestal and bracket.
Perform installation procedures in paragraph 2-168.
3-246
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