Woodward TG-10E, Инструкция по установке и эксплуатации, Страница: 20 / 44

TG-10E/-13E/-17E Actuator Manual 04045
16 Woodward
Figure 4-1. TG Actuator with Cover Removed
7.
Lift off the transducer assembly and carefully move it to the side.
8.
Pull out the pilot-valve plunger and its bushing.
9.
Remove the snap ring from the pilot valve-bushing. Carefully pull out the
pilot-valve plunger and bushing. Do not bang the parts together.
10. Immerse the pilot-valve plunger and bushing in diesel fuel oil or approved
cleaning solvent and wash ultrasonically or by agitation. Use a non-metallic
brush or jet of compressed air to clean slots, bushing filter screen, holes,
and pilot-valve plunger orifice.
11. Reinsert the pilot-valve plunger into the bushing. Make sure that the pilot-
valve plunger slides freely of its own weight while shaking the bushing. If
not, disassemble and check for nicks or scratches on the plunger lands.
12. Reinstall the transducer assembly in reverse order from disassembly,
making certain that all parts are properly seated.
13. Torque the two screws evenly to 25 lb-in (2.8 N
x
m) while holding the
transducer clamp bracket.
CAUTION—CALIBRATION
Uneven torque, misalignment of spacer rings, or improperly seated rings
can cause a large calibration shift.
14. Fasten the cover to the actuator with eight cover screws. Torque the screws
to 100 lb-in (11.3 N
x
m). Reinstall the filter supply tube.
15. Fill the actuator with clean, fresh oil (see Chapter 3, Oil Supply).