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EMT16X
Melco EMT16X User Manual
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EMT16X T
echnical Manual
Rev 113020
2
Table of Contents
Copyright Notice
9
About this Manual
10
Scope of Manual
11
Standard Conventions and Definition of Terms
12
Regulatory Notices
13
Best Maintenance Repair Practices
14
Maintenance Philosophy
14
Scheduled Maintenance
16
Grounding and Static Electricity
17
Static Electricity
17
Machine Orientation
19
Warranty Considerations
21
Explanation of Machine Symbols
22
Keypad Operations
23
Keypad Buttons
28
Step Forward Key
30
Start Button
30
Emergency Stop Button
31
Led Indicator
32
Specifications
33
Technical Specifications
35
Torque Specifications
36
Software Maintenance Menus
38
Special Tools and Fixtures
39
General Maintenance
40
Exterior Surfaces
40
Lubrication Schedule and Specifications
42
Maintenance Schedule
42
Daily Maintenance
44
Weekly Maintenance
46
Monthly Maintenance
52
Quarterly Maintenance
58
Head up Position Adjustment
68
Mechanical Head-Up Position
68
Adjusting Head-Up (Z-Home) Position
69
Hook Timing Inspection/Adjustment
70
Rotational Hook Timing Inspection Procedure
71
Needle to Hook Gap Inspection Procedure
72
Adjustment Procedure
73
Centering the Needle Plate
90
Laser Light - Adjustment
91
Needle Depth
93
Setting the Needle Depth by Eye
93
Presser Foot Height
94
X/Y Home Adjustment
95
Home Adjustment Procedures
95
X-Cable Tension
98
Determining if an X-Cable Is Set to Required Specifications
98
Adjusting an X-Cable that Is Tensioned Outside the Required Specifications
99
Y-Axis Timing Belt Tensioning
101
Y-Axis Belt Tension Adjustment
102
When Belt Tensions Are Correct
102
Y-Motor Timing Belt Tensioning
103
Inspection and Adjustment
103
Bottom Center (Z Timing)
104
Z-Drive Belt Tensioning
109
Z-Home Adjustment
111
Procedure to Identify the Closest Needle
112
Needle Case Calibration
115
Fine Calibration Procedure
115
Rough Calibration Process
116
Rotary Hook Support Adjustment
118
Inspection Procedure
118
Color Change, Take-Up, Feeder Housing Assembly
122
Replacement Procedure for Entire Color Change/Take-Up/Feeder Assembly
122
Color Change Linear Actuator Replacement
124
Replacement Procedures
124
Thread Feeder Gear Replacement
127
Thread Feeder Optical Sensor PCB Replacement
129
Replacement Procedure
129
Thread Feeder Radial Bearing Replacement
130
Thread Feeder Stepper Motor Assembly
131
Laser Pointer Assembly
133
Replacing the Laser Assembly
133
LED Cluster PCB Replacement
135
Presser Foot Assembly Replacement
136
Take-Up Lever Cam Replacement
141
Z-Drive Repair and Adjustment
144
Z-Drive Belt Replacement and Tensioning
144
Z-Home Sensor PCB Replacement
146
Z-Belt Idler Assembly Replacement
148
Z-Motor Assembly
149
Clearing Thread from Thread Feeder Roller
152
Color Change Spindle Mounting Bracket Replacement
154
Grabber Blade Replacement
156
Needle Case Removal
159
Needlecase Installation
161
Grabber Stepper Motor Replacement
163
Take up Lever Replacement
164
Thread Feeder (Replacement and Adjustment)
166
Thread Sensor Assembly Replacement
169
Bobbin Shaft Overhaul
171
Rotary Hook Replacement
173
Power Input Assembly Replacement
178
Power Input Assembly Component Replacement
181
Power Input Assembly Installation
186
User Interface Assembly Replacement
187
Color Change Motor Harness
191
Ethernet Harness
194
Grabber/Threadfeed Motor Harness
196
Grabber/Threadfeed/CC Home Harness
200
Laser Harness
203
LED Cluster Harness
205
Thread Break Harness
209
Z Home Harness
212
User Interface Harness
215
X/Y Home Harness
218
Bearing Block Assemblies
221
X-Beam Assembly
223
X-Carriage Assembly
225
X-Drive Cable Removal
227
X-Drive Cable Installation
229
X-Drive Motor Replacement
233
X-Home Optical Switch Assembly Replacement
236
X/Y Home PCB Replacement
238
Y-Drive Belt Replacement
240
Y-Motor Assembly
242
Troubleshooting
244
Grabber Function Test
245
Final Functional Tests
247
Visual Inspection
247
Optical Sensors Test
249
Power Supply Test
250
Servo Motor Resistance Test
252
Stepper Motor Resistance Test
253
Test Designs
255
Long Stitch Test
257
Looping Test
257
Orientation Test
258
Registration Test
258
Small Alphabet Test
258
Thread Break Sensor Test
259
Thread Break Test
259
Trimmer Test
260
Electrical Failures
261
Color Change Failures
261
LED Cluster Assembly Failures
262
Mechanical Failures
263
Skipped Stitches
264
Thread Breaks
265
Miscellaneous Problems
270
X-Axis Failures
271
Y-Axis Failures
272
Z-Axis Failures
273
Software Error Messages
274
DSP Command Errors
275
Can't Initialize Stepper Motors
275
E-Stop Engaged
277
Servo Motor Errors (Move Time Out, Tracking, and over Current Errors)
278
Critical Measurements
280
Hook Timing
281
Needle to Hook Gap
282
Hook to Rotary Support Gap
282
Take-Up Lever Stroke
282
Cam Follower Preload
283
Color Change Lead Screw
284
Thread Clean Thread Path
288
Z-Belt Tension
288
Y-Axis Timing Belt Tension
289
Proper Lubrication of Moving Parts
289
4
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Melco EMT16X Specifications
General
Needles
16
Control
Touch Screen
Thread Break Detection
Yes
Type
Embroidery Machine
Connectivity
USB
Display
LCD
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