Chadwick-Helmuth Vibrex 2000 User Manual

Helicopter Rotor Balancing
Vibrex 2000 and Vibrex 2000 Plus User Guide 103
ADD TO
TARGET
BLANK TIP
PITCH BLANK LINK
TARGET TIP
PITCH LINK TARGET
CLOCK CORRECTION DUE TO DEMONSTRATED RESPONSE.
CLOCK CHANGE DUE TO INSTALLATION
PROTRACTOR 13871
CHADWICK HELMUTH CO INC. (818) 575-6161
:30
10:00
:15
:45
:45
:45
:15
:30
3:00
:45
:30
:30
:15
:45
:15
:30
:45
2:00
:15
11:00
PHOTOCELL
12:00
1:00
MAKE THIS CHANGE ONLY
11:00
1.0 IPS
12:00
-0-
.1
1:00
WEIGHT
TIP
ZERO
.1
BLANK
SUBTRACT FROM
.5
ADD TO
.2
.3
.4
-or-
TARGET
+.27 BLANK TIP
.7 IPS
@
10:20
1
+3.5 TGT PCL
Hughes 369H, 369HS Tail Rotor Photocell
Hughes 369H, 369HS Tail Rotor Strobex
2
@
11:50
.8 IPS
DIFFERENCE BETWEEN WHERE POINT SHOULD HAVE GONE AND DID GO.
CORRECTION ANGLE
9:00
:45
:15
:30
4:00
:15
:45
:30
10:00
.9 IPS
.4
SUBTRACT FROM
-or-
2:00
BLANK
.2
.3
MAKE ADJUSTMENTS AS CALLED FOR ON BALANCE CHART.
IMPORTANT - USE THIS SIDE FOR CCW TURNING ROTORS ONLY!
3.
PITCH LINK
2
SUBTRACT FROM
WEIGHT
3
TARGET
7:00
4.
6:00
5
4
SUBTRACT FROM
BLANK
TARGET
ADD TO
-or-
PLACE PROTRACTOR OVER APPROPRIATE BALANCE CHART FOR AIRCRAFT BEING BALANCED.
:15
:30
PLOT READING FROM BALANCER USING CLOCKING ON PROTRACTOR.
2. ROTATE PROTRACTOR SO PHOTOCELL IS IN LINE WITH AZIMUTH OF PHOTOCELL ON ROTOR.
INSTRUCTIONS
1.
5:00
:45
:15
:30
:45
8:00
:30
:15
:45
:45
:30
:15
:30
:15
7:00
5:00
5
6:00
3
2
1
-or-
BLANK
ADD TO
1
4
8:00
9:00
4:00
.5
3:00
Run # Run #
Balance Chart for
Adjustment
next run
before
Run #
Run # Run #

Chadwick-Helmuth Vibrex 2000 Specifications

General

Brand	Chadwick-Helmuth
Model	Vibrex 2000
Category	Measuring Instruments
Language	English