TM 5-4220-211-12&P
f.
Replace Engine Fuel Filter. Replace the engine fuel filter element as follows:
(1)
Remove hollow screw (3, Fig. 4-7) from fuel line and fuel injection pump (1 and 2, Fig. 4-7).
(2)
Drain fuel from fuel tank (5, Fig. 4-7). Discard old fuel.
(3)
Remove fuel fill cap (4, Fig. 4-7).
(4)
Remove fuel filter element (6, Fig. 4-7) from fuel line. Discard fuel filter element.
(5)
Flush fuel tank and fuel line (5 and 1, Fig. 4-7) with clean diesel fuel.
NOTE
Make sure no dirt is allowed to enter fuel injection pump.
(6)
Install new fuel filter element (6, Fig. 4-7) in fuel line.
(7)
Reconnect fuel line (1, Fig. 4-7) to fuel injection pump (2, Fig. 4-7) using hollow bolt (3, Fig. 4-7).
(8)
Fill fuel tank with fresh diesel fuel. Ref. para 2-lh.
(9)
Install fuel fill cap (4, Fig. 4-7).
NOTE
Replace fuel filter element after 250 hours/12 mos. or more often under severe conditions.
g.
Check and Clean Engine Cooling System. Check and clean the engine cooling system as follows:
CAUTION
Do not operate engine with cooling shields and screens removed.
(1)
Remove cylinder shields (1, Fig. 4-8) as shown.
(2)
Remove flywheel screens (2, Fig. 4-8) as shown.
(3)
Inspect exposed cylinder cooling fins and flywheel fan for dirt and debris. Clean as required.
(4)
Install flywheel screens (1, Fig. 4-8) as shown.
(5)
Install cylinder shields (2, Fig. 4-8) as shown.
NOTE
Check and clean cooling system every 100 houra/6 mos. of operation or more often under severe conditions.
1. Fuel Line
3. Hollow Bolt 5. Fuel Tank
1. Cylinder Shields
2. Flywheel Screen
2. Fuel Injection Pump
4. Fuel Fill Cap 6. Fuel Filter
Element
Figure 4-8. Diesel Engine Cooling System
Figure 4-7. Diesel Engine Fuel Filter Replacement
Change 3 4-10