TM 5-3805-280-24-2
Air Intake and Exhaust System
ADJUST TURBOCHARGER WASTEGATE
30
16
ACTUATOR
1. Loosen jam nut (A).
2. Disconnect hose and pressurize actuator to 12 psi and
hold at this calibration pressure.
3. Push bypass lever (D) as far as possible toward the
actuator and apply pressure to keep lever in that
position.
IMPORTANT: Twisting or forcing the entire rod in or
out will change the calibration, causing
damage to engine from overboost.
4. Turn rod end (B) in either direction until rod eye can
just be slipped over bypass lever pin. Loosen rod end
an additional half turn, install onto pin and secure with
retainer clip (C). Release pressure on actuator.
5. Pressurize the actuator to 12 psi. Measure the end
play with a dial indicator, moving the bypass assembly
back and forth in a direction perpendicular to the
actuator rod. End play should be within specifications
listed. If necessary to adjust, set end play at 0.38 mm
A--Jam Nut
(0.015 in.)
B--Rod End
C--Retainer Clip
Turbocharger--Specification
D--Bypass Lever
Actuator End Play .................................... 0.05--0.056 mm (0.002--0.022
in.)
6. Vary the pressure from 9--12 psi. a few times to verify
smooth and free operation of the bypass assembly.
7. Attach hose to actuator and secure with hose clamp.
DPSG,OUO1004,4 1931MAR981/1
13-372
