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Regular Maintenance
6. Loosen the hose clamps that secure the hoses to
the fuel filter.
7. Remove the hoses from the filter.
8. Install the new filter in the proper flow direction in
the fuel line.
9. Secure with the hose clamps and wipe up any
spilled fuel.
10. Reopen the fuel tank shut off valves when
complete.
To Drain the Water Separator:
Refer to engine owners manual for specific water
separator service procedures.
Service Air Filter
Refer to the engine owner’s manual for specific air
filter service procedures.
Check / Add Engine Oil Level
Refer to Figure 15 for dipstick and oil fill locations.
Refer to the engine owners manual for specific
engine oil check and fill procedures. Also refer to the
engine owners manual for specific engine oil and filter
change procedures
Change Engine Oil & Filter
1. Warm engine by running for a few minutes.
(Refer to the engine operator’s manual for oil &
filter replacement instructions.)
2. Remove the dipstick (A, Figure 15) to vent the
crankcase and allow the engine oil to drain easily.
3. Place a small pan under the oil drain cap (D) to
catch the oil. Using the appropriate tools, remove
the oil drain cap and drain the engine oil.
3. After draining, replace the oil drain cap (see
engine owners manual for torque specification)
and wipe up any spilled oil.
4. Place an absorbent shop cloth under the engine
oil filter (B). Remove the engine oil filter and
replace with a new one.
5. Remove the shop cloth and wipe up any spilled
oil.
6. Add new oil through the engine oil fill (C). See
the engine operator’s manual for specific oil
recommendations.
D
C
B
A
Figure 15. Engine Oil Fill
A. Dipstick
B. Engine Oil Fill
C. Oil Filter
D. Oil Drain Cap - 3TNM68 Models
E. Oil Drain Cap - 3TNM72 Models
E