Change the filter elements
If the engine is not running close the fuel cocks on
the tank before changing filters. If the engine is run-
ning cut off the flow of fuel with the handle (1) on the
filter itself.
1. Place a receptacle under the filters and shut off
the filter to be changed.
2. Undo the T-bolt (2) and remove the cover (3).
3. Take out the insert carefully while turning it.
4. Drain off water and contaminants through the
drain plug (4).
5. Fit a new filter insert and fill the container with
clean fuel.
6. Change the gasket on the cover and the O-ring
on the T-bolt. Moisten the gasket and O-ring with
fuel before assembling.
7. Fit the cover and tighten it by hand.
8. Wipe off any fuel from the heat shield.
9. Change the other filter in the same way.
10. Open the fuel cocks and put the handle in posi-
tion for normal running. Make sure there are no
leaks.
twin fuel pre-filter/water separator
The twin filter is equipped with a pressure gauge
(1). The filter inserts must be changed according to
the maintenance schedule or earlier if the pressure
gauge indicates a vacuum of 6–10 inHg at no load or
16–20 inHg at full load.
Drain
Place a receptacle under the filter. Drain off water
and contaminants through the plug (D).
Valve positions
The flow of the fuel is governed by putting the handle
(1) in the following positions:
A: Normal running (both filters connected).
B: Left filter insert can be changed.
C: Right filter insert can be changed.
D: Both filters turned off.
67
Maintenance. Fuel system
Summary of Contents for D9 MH
Page 2: ...OPERATOR S MANUAL D9 MH EVC 7746262 English 12 2007 ...
Page 3: ...OPERATOR S MANUAL D9 MH EVC ...
Page 109: ... notes 107 ...
Page 110: ... 108 ...
Page 116: ...7746262 English 12 2007 ...