OM-492 Page 28
7-5. Servicing Engine Lubrication And Fuel Systems Ref. 189 438-A / 802 330-B / S-0842
Tools Needed:
5
4
4
2
3
Stop engine and let cool.
1 Oil Filter
2 Oil Drain Valve
3 1/2 ID x 12 in Hose
4 Fuel Line
5 Primary Fuel Filter
6 Secondary Fuel Filter
7 Petcock
8 Fuel Tank Sludge Drain
To change oil and filter:
Pull oil drain hose through access hole in
base. Change engine oil and filter according
to instructions in engine manual.
Close valve and valve cap before ad-
ding oil and running engine.
Fill crankcase with new oil to full mark on
dipstick (see Section 4-2).
To drain water from fuel system:
Open secondary fuel filter petcock and
drain water into metal container. Close pet-
cock when water-free fuel flows.
To change fuel filters:
Install new primary fuel filter as shown.
Replace secondary fuel filter according to
engine manual.
Replace fuel lines if cracked or worn.
Wipe up any spilled fuel.
After servicing, start engine and
check for fuel leaks.
Stop engine, tighten connections as
necessary, and wipe up fuel.
To change coolant:
Change coolant according to engine manu-
al.
Run engine until engine reaches normal op-
erating temperature. Loosen air bleed
screw to remove air from cooling system.
Tighten screw.
Check coolant level in recovery tank. Add
coolant if necessary.
To drain sludge from fuel tank:
Put metal container under drain, and re-
move sludge drain plug. Reinstall plug
when done.
1
8
9/16 in
FLOW
6
7