TM 9-2350-247-20-1
SPEEDOMETER MALFUNCTIONS
0087 00
INITIAL SETUP:
Maintenance Level
Unit
Tools and Special Tools
General Mechanic’s Tool Kit (WP 0541 00, Item 57)
Materials/Parts
Grease WP 0542 00, Item 14
Personnel Required
Unit Mechanic
References
See your -10
See your PMCS
Equipment Condition
Engine stopped (see your -10)
Carrier blocked (see your -10)
Instrument panel partially removed (WP 0256 00)
Left cab floor plate removed (WP 0394 00 or
WP 0395 00)
NOTE
M548A1 and M548A3 troubleshooting procedures are the same. M548A1 procedure is shown.
T
1. Check if speedometer fail to give any reading.
2. Does speedometer fail to give any reading?
YES
NO
GO TO BY (PAGE 0087 00-2)
Y
1. Remove speedometer cable (1) from speedometer (2).
2. Spin speedometer drive.
3. Does speedometer drive spin freely?
YES
NO
YN
1. Replace speedometer (WP 0516 00).
2. Verify no faults found.
0087 00-1
