Portable Compressor 7/20
13---11
SEPTEMBER 2003
1.
Air vent plug
2.
Injection pump
3.
Fuel filter
1
2
3
1
Figure 13---11.
GRAVITY FEED SYSTEM
[PROCEDURE B] (fuel tanks lower than injection pump)
(1.) For fuel tanks that are lower that the injection pump. The fuel
system must be pressurized by the fuel system electric fuel
pump.
(2.) If an electric fuel pump is not used, you must manually
actuate the pump by lever to bleed.
(3.) The primary fuel filter 3 must be on the pressure side of the
pump if the fuel tank is lower than the injection pump.
(4.) To bleed follow (2) through (5) above.
NOTE
Tighten air vent plug of the fuel injection pump except when
bleeding, or it may stop the engine suddenly.
1.
Fuel tank below injection pump
2.
Pre---filter
3.
Electric or mechanical pump
4.
Main filter
5.
Injection pump
1
2
3
4
5
Figure 13---12.
TANK BELOW INJECTION PUMP
SYSTEM
D. Checking The Fuel Pipes
CAUTION
CHECK OR REPLACE THE FUEL PIPES AFTER STOPPING
THE ENGINE. BROKEN FUEL PIPES CAN CAUSE FIRES.
Check the fuel pipes every 50 hours of operation. When if:
---
If the clamp band is loose, apply oil to the screw of the
band, and tighten the band securely.
---
If the fuel pipes, made of rubber, become worn out,
replace them and the clamp bands every two years.
---
If the fuel pipes and clamp bands are found worn or
damaged before two years‘time, replace or repair
them at once.
---
After replacement of the pipes and bands, air---bleed
the fuel system.
NOTE
When the fuel pipes are not installed, plug them at both ends
with clean cloth or paper to prevent dirt from entering. Dirt in
the pipes can cause fuel injection pump malfunction.
1.
Clamp band
2.
Fuel pipe
1
2
2
1
Figure 13---13.
FUEL PIPES
E. Cleaning The Fuel Filter Pot
Every 100 hours of operation, clean the fuel filter in a clean place
to prevent dust intrusion.
(1.) Close the fuel filter lever.
1.
Fuel filter lever
2.
Fuel filter pot
A
“OFF”
B
“ON”
1
2
A
B
Figure 13---14.
FUEL FILTER CARTRIDGE
REPLACEMENT
(2.) Remove the top cap, and rinse the inside with diesel fuel.
(3.) Take out the element, and rise it with diesel fuel.
(4.) After cleaning, reinstall the fuel filter, keeping out of dust and
dirt.
