How To Eliminate Air From The Fuel System - Lincoln Electric CLASSIC III SVM 137-A Service Manual

D-5

HOW TO ELIMINATE AIR FROM THE FUEL SYSTEM

– DIESEL ENGINE (CLASSIC IIID)
The following procedure is for Classic IIID diesel
engines with a Stanadyne type fuel filter (Figure D.2).
If your filter is different, refer to your engine Owner's
Manual for the correct procedure for eliminating air
from the system.
1. Set the IDLER switch to HIGH and turn the ignition
switch ON.
2. See Figure D.3. Loosen the fuel filter outlet con-
nection "A" and allow fuel to flow until it is free of
air.
NOTE: For this step, if connection "A" is inacces-
sible, due to the type of filter used, loosen connec-
tion "B" at the fuel injection pump. Also loosen con-
nection "B" instead of "A" if "B" is higher than "A".
3. Loosen any two injector high pressure pipe nuts at
the end of the injectors.
4. Press the START pushbotton and crank the engine
until fuel free of air flows from the injector pipe
nuts. Tighten the nuts.
5. Energize the glow plugs, then start the engine.
FIGURE D.3 – ELIMINATING AIR FROM THE FUEL SYSTEM
MAINTENANCE
1
INJECTION LINES
INJECTION PUMP
B
FUEL TANK
Classic III and IIID
3 4 INJECTORS
2
FUEL FILTER
TRANSFER PUMP
SEDIMENTER
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A