TP-7070 7/1878 Section 3 Scheduled Maintenance
7. Remove the water drain plug (or push up the drain
valve) and allow water and fuel to flow into a
suitable container.
Note: Depending upon the location of the fuel
valve, a considerable amount of fuel may
drain out.
8. Remove the separator’s element from the
mounting head by twisting in a counterclockwise
direction.
9. Remove the bowl from the fuel/water separator
element. Wipe the excess fuel from the bowl and
the O--ring. Do not discard the bowl or O--ring.
10. Inspect the components for wear or damage.
Replace parts as necessary.
11. Lubricate the O--ring with clean diesel fuel and
replace it in the bowl.
12. Install the bowl onto a new fuel/water separator
filter element.
13. Lubricate the bowl/element assembly with clean
fuel. Install the bowl/element onto the filter
mounting head.
14. Replace the water drain plug (if r emoved).
15. Connect the fuel-in-water sensor.
16. Open the fuel shut-off valve.
17. Use the manual primer pump to prime the filter until
fuel flows from the vent plug.
18. Close the vent plug.
Note: If the fuel/water separator will not stay primed,
check that the vent plug, drain, filter element,
water collection bowl, and fuel lines are securely
tightened and verify that fuel flow is unobstructed.
3.5.2 Manu al Primer Pump
The manual primer pump, located on the fuel/water
separator, allows the operator to pump fuel through the
fuel system without cranking the engine. Prime the fuel
system under the following conditions:
D Before starting the engine for the first time
D After running out of fuel and adding fuel to the tank
D After fuel system maintenance such as changing the
fuel filter, draining the fuel/water separator, or
replacing a fuel system component
The manual primer pump is actuated by pressing down
on the primer pump.
1. Manual primer pump
2. Vent plug
10501000200
1
2
Figure 3-2 Manual Primer Pump
To bleed air from the fuel system, see Section 3.5.3.
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