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Figure 4. Fuel Pressure Value.
Figure 5. Selecting Diagnostic Tests.

Field Maintenance Manual For Military 621G Scraper -2 Page Navigation
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TM 5-3805-296-23-2
0106
Table 1. Engine Misfires, Runs Rough, or Loss of Power Under Load Continued.
0106
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Test Step 5. Inspect Air Inlet System.
Engine Misfires, Runs
1. Turn ignition switch and battery
Rough, or Loss of Power
Under Load Continued
disconnect switch to OFF position
(TM 5-3805-296-10).
2. Inspect air inlet system for
Air Inlet System Restricted Clear
damage, restriction, and
restriction(s) as directed (WP 0167).
cleanliness (WP 0167).
Proceed to Test Step 13.
Air Inlet System Damaged Replace
damaged air inlet system components
as directed (WP 0167).
Proceed to Test Step 13.
Air Inlet System Dirty Clean or
replace dirty air inlet system
components as necessary (WP 0167).
Proceed to Test Step 13.
No Problem Found Proceed to Test
Step 6.
Test Step 6. Inspect Exhaust System.
Inspect exhaust system for damage/
Exhaust System Restricted Clear
restrictions (WP 0205).
restriction(s) (WP 0205).
Proceed to Test Step 13.
Exhaust System Damaged Replace
damaged exhaust (WP 0205).
Proceed to Test Step 13.
No Problem Found Proceed to Test
Step 7.
0106-7


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