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Figure 6. Engine Shutoff Switch.
Figure 8. Starter Amperage Draw.

Field Maintenance Manual For Military 621G Scraper -2 Page Navigation
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TM 5-3805-296-23-2
0105
Table 1. Engine Cranks Slow Continued.
0105
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Engine Cranks Slow
2. Set ammeter dial (Figure 7, Item 6)
Continued
to 1200 DC amp scale
(Figure 7, Item 1).
3. Press ZERO button
(Figure 7, Item 2) to zero meter.
Make sure HOLD
(Figure 7, Item 3) is not displayed
on screen (Figure 7, Item 4). If
HOLD is displayed, press HOLD
button (Figure 7, Item 5) once.
Figure 7. Ammeter.
0105
4. Connect clamp (Figure 8, Item 2)
of ammeter (Figure 8, Item 1)
around positive battery cable
(Figure 8, Item 3) with arrow
(Figure 8, Item 4) facing direction
of current flow (away from battery).
CAUTION
Do not crank engine for more than 30 seconds. Allow starter to cool for
two minutes before cranking again. Failure to follow this caution may
result in damage to equipment.
5. View ammeter (Figure 8, Item 1)
Amperage Greater Than 800 Amps
while assistant turns ignition
Turn ignition switch and battery
switch to start engine
disconnect switch to OFF position
(TM 5-3805-296-10).
(TM 5-3805-296-10).
Proceed to Test Step 7.
Amperage 800 Amps or Less Turn
ignition switch and battery disconnect
switch to OFF position
(TM 5-3805-296-10).
Proceed to Test Step 8.
0105-10


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