S-21
03-M Series, WSM
DIESEL ENGINE
(3) Check Points of Every 50 Hours
Checking Fuel Hoses and Clamp Bands
1. If the clamp (1) is loose, apply oil to the threads and securely
retighten it.
2. The fuel hose (2) is made of rubber and ages regardless of the
period service.
Change the fuel hose together with the clamp every two years.
3. However, if the fuel hose and clamp are found to be damaged or
deteriorate earlier than two years, then change or remedy.
4. After the fuel hose and the clamp have been changed, bleed the
fuel system.
CAUTION
• Stop the engine when attempting the check and change
prescribed above.
(When bleeding fuel system)
1. Fill the tank with fuel and open the fuel cock (4). (
[B]
only)
2. Loosen the air vent plug (3) of the fuel filter a few turns.
3. Screw back the plug when bubbles do not come up any more.
4. Open the air vent cock (5) on top of the fuel injection pump.
5. If equipped electrical fuel feed pump, turn the key to
AC
position
and pump the fuel up for 10 to 15 seconds.
If equipped mechanical fuel feed pump, set the stop lever on stop
position and crank the engine for 10 to 15 seconds.
6. Close securely the air vent cock after air bleeding.
NOTE
Q
• Always keep the air vent cock on the fuel injection pump
closed except when air is vented, or it may cause the engine
to stop.
W1035921
(1) Clamp
(2) Fuel Hose
(3) Air Vent Plug
(4) Fuel Cock
(5) Air Vent Cock
[A] Cartridge Type
[B] Element Type
KiSC issued 08, 2012 A
