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TROUBLESHOOTING PROCEDURES - Continued
CHAPTER 4 OPERATOR MAINTENANCE INSTRUCTIONS

Scraper, Earth Moving, Motorized, Diesel Engine Driven Model 621B
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TM 5-3805-248-10
TROUBLESHOOTING PROCEDURES - CONTINUED
0012 00
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
TRANSMISSION - CONTINUED
3. Torque Converter/Retarder
Oil Temperature Gage Is
Registering in Red (Indicates
Overheating During Normal
Operation) (Con't).
NOTE
Before checking oil level, ensure that machine is parked on level ground, parking brake applied, trans-
mission in N (Neutral), oil warm, engine at low idle, ejector moved fully forward, and scraper bowl low-
ered with slight downward pressure applied.
Check transmission oil level.
If transmission oil is low, fill to correct
level (WP 0014 00). If level is okay, and
problem still exists, notify Unit
Maintenance.
4.
Transmission Does Not
Operate in Any Speed.
NOTE
Before checking oil level, ensure that machine is parked on level ground, parking brake applied, trans-
mission in N (Neutral), oil warm, engine at low idle, ejector moved fully forward, and scraper bowl low-
ered with slight downward pressure applied.
Check transmission oil level.
If transmission oil is low, fill to correct
level (WP 0014 00). If problem still exists,
notify Unit Maintenance.
Check position of shift lever lock.
Unlock lever if required. If problem still
5.
Transmission Cannot Be
exists, notify Unit Maintenance.
Shifted Out of Neutral.
1.
Check transmission oil level.
If transmission oil is low, fill to correct
6.
Transmission Does Not
level (WP 0014 00). If problem still exists,
Shift from One Speed to
go to test step 2.
Another.
2.
Control linkage out of adjustment.
Notify Unit Maintenance.
Possible internal failure.
Notify Unit Maintenance.
7.
Transmission Engages, but
Machine Does Not Move.
Engine Stops Running.
1.
Check transmission oil level.
If transmission oil is low, fill to correct
8.
Transmission Shifting Is
level (WP 0014 00). If problem still exists,
Rough.
go to test step 2.
2.
Possible internal failure.
Notify Unit Maintenance.
END OF WORK PACKAGE
0012 00-14


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