RIDGID metal detector User's Guide Page 137
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Maintenance
■ For systems with reject confirm and bin full check their correct operation. Bin full will operate if
the sensor is blocked for > 5 seconds.
Air Regulator Unit Maintenance
With the exception of systems fitted with Air Blast or Stop-On-Detect or electrically driven rejects the
compressed air supply pressure to the fitted reject device is fed through an air regulator unit. The
particular model of regulator may vary according to the specification of the system. Each type will
have a pressure adjustment control air input and output fittings a pressure gauge and water trap.
Adjustment of the air pressure is normally carried out by pulling up the adjustment knob to release the
lock and by turning the control clock or anti-clockwise the pressure can be adjusted.
Removal of water from the water trap bottle is carried out by operation of a rotating knob or by
pressing a button. Either way the control will be located at the bottom of the water trap bottle. Water
should be removed regularly.
The correct setting of the air pressure can be found in the individual system specifications in the
Technical Specifications chapter.
Conveyor Belt Maintenance
Plastic Modular Belt Section Replacement
■ If product guides are fitted to the conveyor, unscrew the retaining screws and remove the
guides.
■ Clamp the belt either side of one of the plastic hinge pins that are used to join the sections of
the belt together that require changing.
If you do not clamp the belt it will roll off the loose sprockets when you remove the pin.
■
Carefully slide out the plastic hinge pins and remove the section of belt to be replaced.
■
Carefully interlock the new section of the belt. Make sure the belt is located on the drive
sprocket and correctly engage with the other ‘floating’ sprockets.
■ Carefully slide the plastic hinge rods through the interlocked sections of belt.
■
If product guides were removed from the conveyor, refit them in position and tighten the
securing screws.
Setting the Belt Tension and Tracking
If the belt slips or moves during normal operation, check the rollers are clean and free from debris and
greasy elements then follow the steps below.
Adjusting the hexagonal lock nuts on the studs of the four hanger bearings at the ends of the
conveyor facilitates belt tracking and tension adjustment for this type of conveyor. Do not over-tension
the belt as this may cause premature wear to the bearings.
■
Main belt tensioning is controlled by the hanger bearings at the drive end of the conveyor.
This is factory set and must not be adjusted on site.
■ Tracking and minor tension adjustment is controlled by the hanger bearings at the idle end of
the conveyor. Increasing the tension on the right-hand side of the belt will cause the belt to
move to the left. A decrease in tension on the right will cause the belt to move to the left.
Adjust until the belt track is central.
127
- Metal Detector User Guide 1
- Table of Contents 3
- Introduction 11
- About this Guide 12
- Organisation 13
- Document Change Control 14
- Document Key 14
- The Loma Group of Companies 16
- About Metal Detection 17
- How a Metal Detector Works 18
- Product Effect and Phasing 18
- Phasing 19
- Tracker Feature 20
- Metal Free Zone 20
- Detector Performance 20
- Types of Metal 22
- Test Frequency 23
- Product Test Samples 23
- Test Wands 24
- Testing Guidelines 24
- Test Records 24
- Learn Feature 25
- Safety First 27
- Safety Awareness 28
- EC Declaration of Conformity 28
- Safety Warnings 29
- Safety Labels 31
- Safety Guards 32
- Safety Measures 33
- Intended Use of the Machine 33
- Noise Levels 34
- End of Life Treatment 34
- Emergency Procedures 34
- Quality Assurance 35
- End User Licence Agreement 36
- Technical Specifications 37
- European Belt Conveyors 38
- Installation 39
- Warnings 40
- Receiving and Unpacking 40
- Moving the Detector Head 40
- Nuisance triggering 45
- Moving Metal 46
- Vibration 47
- Belting 47
- Electrical Interference 47
- Warnings 52
- Moving the Machine 53
- Clearance Requirements 54
- Connecting the Air Supply 54
- Checking Guards 57
- Site Considerations 58
- Radio Frequency Interference 59
- Metal Detector Search Heads 62
- Conveyor Belts 63
- Plastic Modular Belts 64
- Reject Devices 65
- Electrical Services Box 67
- Air Pressure Switch 67
- Optional Equipment 68
- Getting Started 71
- threshold 72
- display 72
- changes 72
- User Access 75
- Logging In and Out 76
- Starting and Stopping 77
- Stopping the Machine 78
- Emergency Stop 78
- Using the Metal Detector 79
- Handling Rejected Products 81
- Getting the Results 82
- Frequency Selection 82
- Operating Instructions 83
- Setting the Language 84
- Setting the Machine ID 84
- Setting Up the Search Head 86
- Setting Up the Conveyor 88
- Setting the VF Balance 92
- Setting the VF Drive 94
- Setting Up the User Options 95
- Setting Up Serial Links 96
- Reject Relay 101
- Reject Timing 101
- Adding a New Product 102
- Learning Products 104
- Full Learn 105
- Update Learn 106
- Learn Messages 107
- Learn Setup 108
- Learn Limits 110
- PQ span? 111
- Using Performance Validation 112
- Logs and Reports 117
- Errors Report 118
- Example Problems 119
- Faults Report 120
- Setup Report 123
- Contaminants Report 124
- Learn Report 125
- Status Report 126
- PV Test Report 126
- Batch Report 127
- Shift Report 128
- Contaminants Log 128
- Errors Log 129
- Faults Log 130
- Printing the Faults Report 131
- Clearing a Fault 131
- Clearing the Log 131
- Batch Log 132
- PVS Log 133
- Shift Log 134
- Maintenance 135
- Cleaning solutions 136
- Belt conveyor versions 136
- Conveyor Belt Maintenance 137
- Adjusting the Reject Devices 138
- Software Upgrades 138
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