TB 55-4920-343-35/1
Section I. IDENTIFICATION AND DESCRIPTION
1-1.
Test Instrument Identification.
This bulletin provides periodic instructions for the calibration of simulator self-tuning vibration absorber system,
and will be referred to as the "test instrument" throughout this bulletin.
a. Nomenclature: Simulator, self-tuning vibration absorber system
b. Manufacturer: Boeing-Vertol Division
c. P/N: 114G1409-1 and 114G5090-1
d. FSN: 4920-437-7558
e. Model Variations: Model 114G5090-1 has two output jacks on front panel to check actuator voltage.
1-2.
Calibration Description.
Test instrument parameters and performance specifications which pertain to this calibration are listed in table 1-1.
Table 1-1. Calibration Description
Test instrument
parameters
Performance specifications
Input power requirements
115VAC, 400 Hz, 3-phase
18 vdc 2.2V
Operating voltage dc
Ripple voltage p-p
1.9 vac p-p
Simulated accelerometer
1.0 to 3.5 vac (rms)
3.8 vac l.Ov
Reference voltage
12 Hx 1.8 Hz
Phase angles
Retract Signal:lagging phase angle 750
Extend Signal:lagging phase angle 750
1-3.
Forms and Records.
Maintenance forms, records, and reports which are to be used by the calibration personnel at all calibration levels are
listed in and prescribed by TM 38-750.
1-4. Reporting of Errors.
The reporting of errors, omissions, and recommendations for improving this publication by the individual user is
encouraged. Reports should be submitted on DA Form 2028 (Recommended Changes to Publications), and forwarded
direct to Commanding General, US Army Aviation Systems Command, ATTN: AMSAV-M, PO Box 209, St. Louis,
Missouri 63166.
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