5
EC3-680-3 February 2017
Order # 5041558-0 & 5041679-0
FOREWORD
This manual contains important information to help you properly install, operate and maintain your hoist for maximum performance, economy
and safety.
Please study its contents thoroughly before putting your hoist into operation. By practicing correct operating procedures and by carrying out
the recommended preventive maintenance suggestions, you will experience long, dependable and safe service. After you have completely
familiarized yourself with the contents of this manual, we recommend that you carefully file it for future reference.
The information herein is directed to the proper use, care and maintenance of the hoist and does not comprise a handbook on the broad
subject of rigging.
Rigging can be defined as the process of lifting and moving heavy loads using hoists and other mechanical equipment. Skill acquired through
specialized experience and study is essential to safe rigging operations. For rigging information, we recommend consulting a standard
textbook on the subject.
TABLE OF CONTENTS
Master Parts Depots And Service Centers ........................................ 2
Safety Precautions ............................................................................. 4
Foreword ........................................................................................... 5
INTRODUCTION
Application Information ...................................................................... 6
Safety Standards ................................................................................ 6
Hoist Construction and Features ....................................................... 6
Basic Hoist Data ................................................................................. 6
Application Information ...................................................................... 6
Warranty ............................................................................................. 6
INSTALLATION
Safety Notes ....................................................................................... 6
Hanging the Hoist ............................................................................... 6
Power Supply Connection .................................................................. 7
Vent Plug ............................................................................................ 7
Chain Lubrication ............................................................................... 7
Testing ................................................................................................ 7
Trolley Installation ............................................................................... 7
Chain Container Installation ............................................................. 10
OPERATION
General ............................................................................................. 10
Safety Notes ..................................................................................... 10
Handling the Load ............................................................................ 10
Overload Limiting Protection ............................................................ 10
INSPECTION
General ............................................................................................. 10
Frequent Inspection ......................................................................... 10
Periodic Inspection ........................................................................... 12
Load Brake Function Check ............................................................. 12
Chain Inspection .............................................................................. 13
MAINTENANCE AND REPAIR
General ............................................................................................. 13
Limit Switch Adjustment .................................................................. 13
Motor Break Adjustment .................................................................. 14
Top Suspension Removal and Replacement ................................... 14
Chain Replacement .......................................................................... 15
Lubrication ........................................................................................ 16
Chain Stop Installation ..................................................................... 18
TROUBLESHOOTING
General ............................................................................................. 18
WIRING
Voltage Conversion .......................................................................... 19
REPAIR PARTS LIST
General ............................................................................................. 23
How to use ....................................................................................... 23
LIST OF TABLES
TABLE DESCRIPTION
PAGE
1-1
Basic Hoist Data ................................................................ 6
2-1
Parts List for CT Trolley ..................................................... 8
2-2
Trolley I-Beam Adjustment Data ........................................ 8
4-2
Recommended Inspector's Report ................................. 12
4-1
Maximum Allowable Hook Throat Opening ..................... 13
5-1
Recommended Lubrication Schedule Model
EC Electric Chain Hoist ................................................... 16
6-1
General Troubleshooting Table ....................................... 18
LIST OF ILLUSTRATIONS
FIG.
DESCRIPTION
PAGE
2-1
Coffing CT Trolley ............................................................. 8
2-2
Chain Container Installation .............................................. 9
4-3
Load Brake Function Check ........................................... 12
4-4
Typical Wear on Links ..................................................... 13
4-6
Hook Throat Opening ..................................................... 13
5-1
Limit Switch Adjustment ................................................. 14
5-2
Motor Brake Adjustment .................................................. 14
5-3
Chain Replacement ........................................................ 15
5-4
Chaining Hoist ................................................................ 16
5-5
Chaining DIagrams ......................................................... 17
7-1
Wiring Diagram, Single Speed Hoist .............................. 20
7-2
Wiring Diagram, Single Speed Hoist .............................. 21
7-3
Wiring Diagram, Two Speed Hoist .................................. 22
8-1
Basic Hoist ....................................................................... 24
8-2
Suspension Assembly Kits .............................................. 25
8-3
Motor Parts ...................................................................... 26
8-4A
Controller Area (Single Speed Hoist) ............................... 27
8-4B
Controller Area (Two Speed Hoist) ................................... 28
8-5
Transmission .................................................................... 29
8-6A
Chaining Parts (Single Chain) .......................................... 30
8-6B
Chaining Parts (Double Chain) ......................................... 31
8-6C
Chaining Parts (Triple Chain)............................................ 32
8-7A
Standard Limit Switch Parts ............................................ 33
8-7B
Geared Limit Switch Parts ............................................... 34
8-8
Motor Brake Parts............................................................ 35
8-9
Counterweights................................................................ 36
8-10A
Pushbutton (Single Speed Hoists) ................................... 37
8-10B
Pushbutton (Two Speed Hoists) ...................................... 38