PAT EI65 Manuel utilisateur
031-300-190-035 REVISION A 01/25/99
ANGLE-LENGTH-RADIUS-LOAD
INDICATOR SYSTEM
EI65
TROUBLESHOOTING
HANDBOOK
Link-Belt
Construction Equipment
LATTICE BOOM CRANES
EI65 TROUBLESHOOTING HANDBOOK
031-300-190-035 REVISION A 01/25/99
NOTICE
The information in this document is subject
to change without notice.
PAT makes no warranty of any kind with regard
to this material, including, but not limited
to the implied warranties of merchantability
and fitness for a particular purpose.
PAT shall not be liable for errors contained herein
or for incidental or consequential damages in
connection with the furnishing, performance
or use of this manual.
This document contains proprietary information
which is protected by copyright. All rights are
reserved. No part of this document may be
photocopied, reproduced, or translated to
another language without prior consent of PAT.
EI65 TROUBLESHOOTING HANDBOOK
031-300-190-035 REVISION A 01/25/99
Table of Contents
1. General Information............................................................................... 1
2. Warnings ............................................................................................... 2
3. System Flow Charts............................................................................... 3
3.1. No Display ...................................................................................... 4
3.2. Anti-Two Block Problem ................................................................. 5
3.3. Angle Reading Problem.................................................................. 7
3.4. Load Reading Problem................................................................... 8
4. Error Codes ......................................................................................... 10
5. Drawings.............................................................................................. 11
5.1. System Diagram ........................................................................... 12
5.2. Connection Board Layout ............................................................. 13
5.3. Main Board Layout ....................................................................... 13
5.4. Anti-Two Block Circuit................................................................... 14
5.5. Angle Sensor Adjustment ............................................................. 15
5.6. Angle Sensor Supply Voltage....................................................... 15
5.7. Angle Sensor Circuit..................................................................... 16
5.8. Linerider Circuit ............................................................................ 17
5.9. Linerider Supply Voltage .............................................................. 18
EI65 TROUBLESHOOTING HANDBOOK
031-300-190-035 REVISION A 01/25/99
1
1. GENERAL INFORMATION
The purpose of this troubleshooting handbook is to provide additional information to assist
a service or maintenance person in identifying malfunctions or system problems with the
PAT System. A digital voltmeter and regular maintenance and service tools will be
required to troubleshoot the system. Note: Knowledge of how to use a digital voltmeter is
assumed.
REFERENCE:
Operator’s and Calibration Handbook PAT 031-300-190-015
SYSTEM MALFUNCTION:
In case of a malfunction of the system, an error code which
identifies the system malfunction will be displayed in the
reeving portion of the display. The error codes are listed in
Section 4, Error Codes. The table identify various faults that can occur with the EI65,
explain each fault, and describe the action which shall be taken to correct the fault.
Faults within the electronic microprocessor shall be repaired by factory trained service
personnel. When these faults occur, contact your authorized dealer or service
organization.
SYSTEM PROBLEMS:
If the operator identifies a possible problem in the system, perform the pre-operation
inspection in the Operator’s Handbook 031-300-190-015 to define the problem. Use the
following drawings to identify the problem.
SYSTEM DESCRIPTION:
The PAT Length-Angle-Radius-Load Indicator System EI65 has been designed to provide
the crane operator with the essential information required to enable the machine to be
used within its design parameters. The EI65 System indicates the length and angle of the
boom, tip height, working radius and the total weight being lifted by the crane. Using the
various sensors and the limits set by the operator, the EI65 System warns the crane
operator of certain approaching hazardous conditions which could occur during the
operation of his crane.
WARNING
Always refer to operational instructions and load charts provided by the crane
manufacturer for specific crane operation and load limits.
MB 115.0 J1 85.0
J2 50.0 0J 15.0 E71
EI65 TROUBLESHOOTING HANDBOOK
031-300-190-035 REVISION A 01/25/99
2
2. WARNINGS
• The EI65 is an operational aid which warns a crane operator of certain approaching
hazardous conditions which could cause damage to equipment and personnel.
• The device is not, and shall not be, a substitute for good operator judgment,
experience and use of accepted safe crane operating procedures.
• The responsibility for the safe operation of the crane shall remain with the crane
operator who shall ensure that all warnings and instructions supplied are fully
understood and observed.
• Prior to operating the crane, the operator must carefully and thoroughly read and
understand the information in the operator’s handbook to ensure that he/she knows the
operation and limitations of the indicating system and crane.
EI65 TROUBLESHOOTING HANDBOOK
031-300-190-035 REVISION A 01/25/99
3
3. TROUBLESHOOTING FLOW CHARTS
This section explains how to handle a problem that may arise with the EI65, PAT Load
Indicator System. The procedures are easy to follow and are given in flowcharts on the
following pages. Start with the general flowchart below which will guide you to one of the
detailed flowcharts shown in this section. Section 5 contains the necessary drawings
needed for troubleshooting.
What’s Wrong?
START
No display
Anti-Two Block Problem
Angle Reading Problem
Load Reading Problem
Go to Section 3.1
Go to Section 3.2
Go to Section 3.3
Go to Section 3.4
EI65 TROUBLESHOOTING HANDBOOK
031-300-190-035 REVISION A 01/25/99
4
3.1 NO DISPLAY
PROBLEM: Blank console display with no warning light shown.
Measure crane voltage on connection board between X1:1 (+UB) and X1:3 (ground).
Refer to Drawing 1, System Diagram, Section 5. Drawings.
Check fuse F1 in console.
Refer to Drawing 2, Connection Board, Section 5. Drawings.
Correct?
Replace fuse (2amp/250V)
Measure voltage on connection board between MP4 (+5.25V) and MP1 (ground).
Refer to Drawing 2, Connection Board, Section 5. Drawings.
Correct?
Defect on connection board. Replace
console connection board.
Replace console main board.
Correct?
Start
No
Check crane power supply for faulty
crane electric or if supply is too low.
No
No
Measure voltage to main board between MP15 (+5.25V) and MP1 (ground).
Refer to Drawing 3, Main Board, Section 5. Drawings..
Yes
Yes
Yes
EI65 TROUBLESHOOTING HANDBOOK
031-300-190-035 REVISION A 01/25/99
5
3.2 ANTI TWO BLOCK PROBLEM
Check weight position. Refer to Operator's Section of Handbook 031-300-190-015
Section 5. Pre-Operation Inspection, item 1, 2, and 3 for
switch weight positions for the main boom and extension.
PROBLEM: Function of Anti-Two-Block System is faulty.
START
Check to see whether or not crane is in two-block condition.
Correct? Lower hook down into safe position
Position the weight properly.
Check the A2B circuit at the boom tip junction box.
With power off, measure A2B signal in the j-box between terminals 5 & 6.
With the bypass plugs and switch weight in position the ohm meter reads 4.7K ohms.
Refer to Drawing 4, Anti-Two Block Circuit, Section 5. Drawings.
Replace Anti-Two-Block switch.
Refer to Drawing 1 & 4 in Section 5. Drawings.
Next Page
Correct?
Correct? No
Yes
No
No
Yes
Yes
EI65 TROUBLESHOOTING HANDBOOK
031-300-190-035 REVISION A 01/25/99
6
3.2 ANTI TWO BLOCK PROBLEM - continued
Continued from previous page.
PREVIOUS PAGE
Correct?
Fault in cable assembly. Check cable assemblies
and replace defective cable.
Refer to Drawing 1, System Diagram, Section 5. Drawings.
With power off, measure the A2B signal in the console at the X1:9 and X1:10.
With the switch weight in position the ohm meter reads 4.7K ohms.
Refer to Drawing 4, Anti-Two Block Circuit, Section 5. Drawings.
End
No
Yes
With power on and the switch weight in position,
If the Anti-Two Block condition exists replace connection board.
A2B relay defective on connection board.
Refer to Drawing 1 & 2, Section 5. Drawings..
Yes
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