Great-plains NP4000B Operator Manual User Manual Page 125
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Great Plains Manufacturing, Inc. Table of Contents Index Maintenance and Lubrication 121
2014-05-14 Table of Contents Index 417-199M
Clearing Plugged Vapor Tubes
Elevated Ammonia Exposure Hazard:
Follow clearing instructions carefully. Wear your PPE
a
.
Plugged vapor tubes still attached can contain significantly
greater than normal NH
3
vapor, which is not likely to be
mitigated by normal Discharge procedures. Disconnecting a
charged line releases a dangerous amount of NH
3
vapor. PPE
is not designed to protect against such a release. Burning,
respiratory injury, blinding or death could result.
Refer to Figure 81
A plugged vapor tube often usually does not result
in the vapor tubing lifting off the tine tubing at the clamp
(it is a “closed line plug”).
If only one vapor line is plugged, the symptom may be an
elevated temperature at the cooler gauge ( on
page 29), and possibly a rate alarm if cooling is
insufficient. If both vapor lines at a cooler are plugged
(at moderate or warm ambient temperatures) the
temperature gauge rises higher, and more quickly.
Cooling ceases. Cooler pressure rises. Flow divider
pressure falls. Rate alarm is likely. Normal Discharge
may not clear the line.
If the plugged line disconnects (“open line plug”), you
may see little change from normal operations. Odor is
elevated, if you drive down-wind of application. The
vapor line may not cause a cloud. The change in cooler
pressure may be minor. You are most likely to detect an
open line plugging of a vapor line during routine row
inspection at re-hitch.
Clearing Closed Line Vapor Plugs
1. Review the WARNING at the top of this page.
2. Stop operation (page 70).
3. Discharge the system (page 118). The standard
discharge is not likely to adequately discharge any
plugged, closed, vapor lines. Expect continuing
vapor release at non-plugged rows. The plugged line
discharges back through the cooler, then through the
flow divider and out the other rows.
4. Wait until the plugged tine has warmed to ambient
temperature, and there is no liquid in the vapor line.
5. Loosen the screw clamp . Slide it up the vapor
tubing. Pull the vapor tubing off the tine tubing.
6. Use a thin flexible tool (a coat hanger wire may
suffice) to clear the tine tube from above or below.
7. Reconnect the vapor tubing. Push the vapor tubing
onto the tine tube about
3
⁄
4
inch (19 mm). Slide the
screw clamp to centered in the overlap and secure.
Clearing Open Line Vapor Plugs
1. Stop operation (page 70).
2. Discharge the system (page 118).
3. If the tine tubing is cold, wait for it to warm to ambient
temperature (and vaporize any liquid NH
3
inside).
4. Use a thin flexible tool (a coat hanger may suffice) to
clear the tine tube from above or below.
5. Reconnect the vapor tubing. Push the vapor tubing
onto the tine tube about
3
⁄
4
inch (19 mm). Slide the
screw clamp to centered in the overlap and secure.
a. PPE: Personal Protective Equipment
Figure 81
Dual Tine Vapor Tube
34990
1
3
A45
A48
A27
3
- Operator Manual 1
- Table of Contents 3
- Important Safety Information 5
- Look for Safety Symbol 6
- Be Aware of Signal Words 6
- Prepare for Emergencies 6
- Use Safety Chains 8
- Avoid High Pressure Fluids 8
- Minimize Radiation Exposure 8
- Keep Riders Off Machinery 8
- Use Safety Lights and Devices 9
- Tires Not a Step 9
- Transport Machinery Safely 10
- Shutdown and Storage 11
- Handle Chemicals Properly 11
- Tire Safety 12
- Practice Safe Maintenance 12
- Safety At All Times 12
- Safety Decals 13
- 818-323C 15
- 818-590C 15
- Danger: Hitch Crush 15
- 848-801C 20
- 848-539C 21
- Introduction 22
- Using This Manual 23
- Owner Assistance 24
- Application Overview 25
- A35 A39 A40 26
- Figure 5 32
- Figure 6 33
- Nutri-Pro 37
- Rear Hitch (Option) 37
- Figure 7 38
- Trailing Nurse Tank Hitch 38
- Preparation and Setup 39
- NP4000A: Get Expert Advice 40
- Pre-Application Setup 40
- 2-Point Hitching 41
- Hydraulic Hose Hookup 45
- Date Code 46
- Motor Model (206N) 46
- Inlet Port 46
- Outlet Port 46
- Leveling Applicator 47
- Wash Water (NP4000A) 51
- Sealer Setup (NP4000A) 51
- Operating Instructions 52
- Fold/Lift Circuit 53
- FOLD / FIELD Switch 53
- Applicator Locks 54
- Raising/Lowering Applicator 55
- Unfolding and Folding 60
- Transport 63
- Final Applicator Setup 64
- Operations 65
- : Pass Planning 70
- Liquid Operations 78
- Liq: Hydraulic Drive Start-Up 81
- Liq: Pauses and Turns 81
- Suspending Application 83
- Liq: Stopping Application 83
- Field Set-Up Checklists 84
- Checklist (Cart Hitched) 85
- Plumbing Checklist Page 85
- Field Operation Checklists 86
- Short-Term Parking 88
- Long-Term Storage 88
- Adjustments 89
- Row Adjustments 90
- Handle Slot Down-Pressure 91
- Tool Bar Height Adjustment 95
- Weight Transfer Adjustment 96
- NUTRI-PRO 97
- Caster Angle Adjustment 98
- Fertilizer Rates 99
- NP4000-1630 Fertilizer Rate 100
- NP4000B-1238 Fertilizer Rate 102
- NP4000B-1240 Fertilizer Rate 103
- Strainer Adjustment 106
- Flow-Based Adjustment 109
- Dead-Head Adjustment 109
- Troubleshooting 110
- FOLD / FIELD Troubleshooting 111
- Maintenance and Lubrication 119
- Avoid Trapped Anhydrous 120
- Avoid Ball Traps 121
- System Discharge 122
- Clearing Plugged Tines 124
- Valve Replacement 127
- Replacement Log 128
- Refrigerant Line 129
- Row Delivery Tubing 130
- Row Vapor Tubing 130
- Metering System Maintenance 131
- Material Clean-Out (Liquid) 132
- Pump Maintenance and Repair 134
- Coulter Disc Replacement 134
- Coulter Spring Setting 135
- Hydraulic Maintenance 136
- Bleeding Fold Hydraulics 137
- Wing Leveling 140
- Rear Eyebolt Adjustment 140
- Caster Brake Adjustment 141
- Chain Maintenance (Option) 142
- Inner Wing Pivots 143
- Outer Wing Pivots 143
- Caster Pivots 143
- Lift- Assist Parallel Arms 144
- Fertilizer Pump Crankshaft 145
- Tire Pressures 145
- As Required 146
- Seasonal 146
- Sub-frame and Tank Selection 148
- Category II Hitch Pin Kit 148
- Rear Hitches 149
- Nurse Tank Light Harness 150
- Row Cleaners 150
- Terra-Tine™ Row Cleaners 150
- Coulters, Blades and Tines 151
- Vantage I Attachment Kits 152
- Coulter Nozzles 152
- Speed Sensor Cable 153
- Speed Sensor 153
- Manifolds and Accessories 154
- Liquid Fertilizer Pumps 155
- Side Dress Extensions 156
- Weight Kit 157
- Specifications and Capacities 158
- Dimensions 161
- Torque Values Chart 163
- Tire Inflation Chart 163
- Plumbing Diagrams 164
- Chain Routing (Option) 172
- Controller System Diagrams 173
- GP: 823-422C 174
- Hydraulic Pump Controller 175
- Hydraulic Diagrams 176
- Pump Hydraulics (Option) 179
- Component Replacement Dates 180
- Post-Delivery Checklist 180
- Lift-Assist Valve Setup 181
- Hydraulic Pump Setup 182
- Console Installation 183
- Side Dress Installation 184
- Refer to Figure 103 186
- 803-027C NUT HEX 3/4-10 PLT 188
- 990-259R EVA TUBING 3/8 ID 189
- Weight Kit Installation 191
- Warranty 192
- Table of Contents Index 199
- Salina, Kansas 67402-5060 USA 200
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