TM 5-3810-307-24-1-2
TABLE OF CONTENTS
General Information......................................................................................................... G-5
Section 1 - General Flowchart ......................................................................................... G-7
Section 2 - Lever Lockout Activated ................................................................................ G-8
Section 3 - Broken Length Cable.................................................................................... G- 9
Section 4 - No Display ................................................................................................... G-10
Section 5 - Anti-Two Block Troubleshooting
(The AT422T has been produced with single or double anti-two block switches. See section 5a or
5b for appropriate machine configuration.)
Section 5a - Anti-Two Block Problem (Single Switch) ................................................... G-12
Section 5b - Anti-Two Block Problem (Double Switch) .................................................. G-15
Section 6 - Length Reading Problem............................................................................. G-18
Section 7 - Load Reading Problem................................................................................ G-21
Section 8 - Bad Data Transfer Between Display Console & Central Unit ...................... G-24
Section 9 - Error Code Displayed .................................................................................. G-27
Section 10 - Drawings ................................................................................................... G-33
Drawing 1 -
Electrical Wiring Central Unit to Crane/Pressure Transducers ........... G-33
Drawing 2 -
Electrical Wiring Central Unit to Display Console/Cable Reel............. G-34
Drawing 3A - Central Unit DS350/2766.................................................................... G-35
Drawing 3B - Central Unit DS350/2767.................................................................... G-36
Drawing 4 -
Cable Reel.......................................................................................... G-37
Drawing 5 -
Display Console.................................................................................. G-38
Drawing 6 -
In Central Unit, Heater Control Board w/voltmeter on X1:1 and
Connection Board w/voltmeter on X1:4 ......................................... G-39
Drawing 7 -
Connection Board in Central Unit
w/voltmeter on X1:1 & X1:3
w/voltmeter on X4:1 & X4:3........................................................... G-40
Drawing 8A - Main Board (0094) - Layout w/voltmeter on X1:1 & X1:3.................... G-41
Drawing 8B - Main Board (0222) - Layout w/voltmeter on X1:1 & X1:3.................... G-42
Drawing 9 -
In Display Console, Heater Control Board w/voltmeter on X2:1 & X2:2G-43
Drawing 10 - Boom Nose Junction Box w/ohmmeter on 1 & 2 ................................ G-44
Drawing 11 - Slip Ring w/ohmmeter on X2:Red & X1:Brown................................... G-45
Drawing 12 - Cable Reel w/ohmmeter on Terminals 7 & 8 on Terminal Board........ G-46
Change-1 G-3
