Maintenance/service diesel engine: fuel system – MacDon 9352c SP User Manual
Page 75

Form # 147459
Issue 11/06 Web Rev_01
73
 MAINTENANCE/SERVICE 
 
Diesel Engine: Fuel System 
 
FUEL SYSTEM AIR REMOVAL - DIESEL ENGINE 
 
Controlled venting of air is provided at the injection 
pump through the fuel drain manifold. Small 
amounts of air introduced by changing filters or 
injection pump supply line will be vented 
automatically, if the fuel filter is changed in 
accordance with instructions. (See "Fuel Filters".) 
However, manual venting ("bleeding") may be 
required if: 
 
1. The fuel filter is not filled prior to installation. 
2. Injection pump is replaced. 
3. High-pressure fuel lines are replaced. 
4. Engine is run until fuel tank is empty. 
 
To bleed LOW pressure lines and fuel filters: 
 
1. Loosen the bleed screw (A) located at the outlet 
fitting from the fuel filter housing.
 
2. Push plunger (B) on the lift pump until clear fuel 
with no air bubbles flows from around the bleed 
screw. 
 
3. Tighten the bleed screw (A). 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
A
B
BLEEDING LOW PRESSURE LINES
AND FILTERS – TURBO
(Throttle linkage not present on XX52 model)
