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
(e) Adjust the belts for proper tension
and tighten setscrews and bracket
(f) At the following daily PMCS
inspection, recheck the belts to
ensure proper tension.
Under no circumstances should the engine
be allowed to operate at a higher than
specified speed. Severe engine damage
may result. Check engine speed specifica-
tion when performing PMCS.
c. Adjust engine speed by turning the idling
screw clockwise to increase speed and
counterclockwise to decrease speed.
d. Inspect engine for any fluid leakage.
Correct as required.
e. Remove red tag from switchboard con-
f. Empty and change glass collecting bowl.
a. Notify Direct Support maintenance of 200
hours of engine operation on auxiliary
generator and request check of valve
clearances as follows:
When rotating engines, they should always
be turned in their normal direction of rota-
tion, i.e., counterclockwise when viewing
from the gearbox end. The exception is con-
tra-rotating engines, or rotating them clock-
wise from the gearbox end.
The clearance is set between the top
of the valve stem rocker and arm and
should be 0.012 in (0.30 mm) cold.