Table 9-3. Preventive Maintenance Checks and Services for Electrical Power Systems(Continued)
B - Before
D - During
A - After
H - Hourly Interval
CHECK FOR AND HAVE
IS NOT READY/
REPAIRED OR ADJUSTED
B D A
(b) Loosen the vent screw on the
hydraulic head locking screw on
the side of the fuel injection pump
(c) Loosen the air vent screw on the
side of the governor control cover.
(d) Operate the priming lever of the
fuel lift pump. (If the cam on the
engine camshaft driving the fuel
lift pump is on maximum lift, it will
not be possible to operate the
hand primer and the engine should
be turned one complete revolu-
tion.) When diesel fuel, free from
air bubbles, issues from each vent
point, tighten the connections in
the following order:
(1) Filter cover vent screw.
(2) Head locking screw vent valve.
(3) Governor cover vent valve.
(e) Loosen the pipe union nut at the
pump inlet. Operate the priming
device and retighten when diesel
fuel, free from air bubbles, issues
from around the pipe threads.
Loosen the unions at the atomizer
ends of two of the HP pipes.
(g) Set the accelerator at the fully
open position and ensure that the
"stop" control is in the "run" posi-
(h) Turn the engine until fuel oil, free
from air bubbles, issues from both
Tighten the unions on both fuel
pipes. The engine is ready for
starting. (if fuel has been drained
from the thermostat feed pipe, the
pipe must be disconnected at the
thermostat and all air bled from
the pipe before the thermostat is