Milnor Tunnel Dryer Unloading Convey 42 Conveyer.pdf

Section 1 Service and Maintenance

R

Pellerin Milnor CorporationPellerin Milnor Corporation P. O. Box 400, Kenner, LA 70063-0400

Litho in U.S.A.

BMP070001/2007042A

(Sheet 1 of 2)

Conveyor Lubrication & Chain Adjustments Flatbelt, Load Conveyors & Extractor Conveyors

CONVEYOR LUBRICATION:

Every three months, all CONVEYOR ROLLER BEARINGS should be lubricated with bearing lubricant, Shell Alvania EP2 Lithium Grease or equivalent, using a hand pressure grease gun. Lubrication fittings are located on the bearings when they are easily accessible or they are remotely located to a position on the conveyor bed frame, if the bearing cannot be reached easily.

LUBRICATION

FITTING

LUBRICATION

FITTING

LUBRICATION

FITTING

TYPICAL: FLATBELT CONVEYORS

TYPICAL: LOAD CONVEYORS

TYPICAL: UNDERDRIVE

LUBRICATION

FITTING LUBRICATION

FITTING

Pellerin Milnor CorporationPellerin Milnor Corporation P. O. Box 400, Kenner, LA 70063-0400

Litho in U.S.A.

BMP070001/2007042A

(Sheet 2 of 2)

Conveyor Lubrication & Chain Adjustments

LUBRICATE

TYPICAL: IDLER ROLLER

CHAIN LUBRICATION:

Every thirty days of operation, CHAIN DRIVES should be lubricated with bearing lubricant, Shell Alvania EP2 Lithium Grease or equivalent. Chain drives are covered by a safety cover and their lubrication fitting are remotely mounted where they are easily accessible.

CHAIN ADJUSTMENTS:

Every thirty days of operation, CHAIN DRIVES should be checked for proper adjustment.

A = 0 - .125” [0- 3mm] New Chain A= .125” - .25” [3mm - 6mm] After 48 hours A

Flatbelt, Load Conveyors & Extractor Conveyors

Pellerin Milnor Corporation P. O. Box 400, Kenner, LA 70063-0400

Litho in U.S.A.

BMP820015/96322V

(Sheet 1 of 3)

Conveyor Adjustment Procedures Flatbelt & Load Conveyors

BMP820015/96322V (1 of 3)

Comments:

To provide optimum durability of the conveyor belt, it is essential that the conveyor is properly "squared". These instructions define the procedures to "square" the system.

Step 1:

Step 2:

Step 3:

The conveyor frame must be "square".

This is accomplished by adjusting the tie rods between points "A" - "C" and "B" - "D".

The frame is "square" if and only if met:

distance "A" - "C" equals distance "B" - "D".

The rollers must be parallel to the lines "A" - "D" and respectively "B" - "C".

This is accomplished by moving the rollers with the adjusting rods. Therefore distance "G" must equal distance "H".

If step 2 is respected the rollers will be parallel to one another, therefore distance "E" will equal distance "F".

This configuration is shown as an example only.

* Many installations incorporate several interconnected conveyors (as shown above) which must be square to one another.

ROLLER 1

* FRONT END OF FIRST CONVEYOR

B axis

ROLLER 2

* REAR OF LAST CONVEYOR

ADJUSTING NUTS

X

D axis

LOCKING NUTS

ADJUSTING ROD

A axis

G H CONVEYOR BED

F

E

C axis

9'

9'

7'

4'

SECTION X

P. O. Box 400, Kenner, LA 70063-0400

Litho in U.S.A.

BMP820015/96322V

(Sheet 2 of 3)

Conveyor Adjustment Procedures Flatbelt & Load Conveyors

BMP820015/96322V (2 of 3)

Step 1:

Step 2:

Step 3:

Step 4:

Step 5:

Step 6:

At some point well back from the end of the belt, measure and carefully mark a point (C) at the exact center of the belt width.

Measure from this centerpoint two equal lengths (k and m) and mark points (A and B) along the edges and near the end of the belt. Be sure length "k" equals length "m".

Meausre the total desired length

(h) from point "B" to point "F" and mark that point.

At some point well back from this end of the belt, mark a point (D) at the exact center of the belt width.

Repeat step 2 to find point "E".

Be sure that length "n" equals length "p".

Cut along lines "A" - "B" and "E" - "F". Cuts must be straight so that the ends may be laced together without causing the belt material to warp.

(THIS PROCEDURE TO BE USED IF A

BELT IS TO BE CUT AND LACED IN THE

FIELD.)

A B

C k m h pDn

E F

P. O. Box 400, Kenner, LA 70063-0400

Litho in U.S.A.

BMP820015/96322V

(Sheet 3 of 3)

Conveyor Adjustment Procedures Flatbelt & Load Conveyors

BMP820015/96322V (3 of 3)

Step 1:

Step 2:

Check the conveyor frame to make sure it is square in accordance with illustration 1. Make sure the ends of the belt are square and laced properly in accordance with illustration 2.

Run the conveyor for enough revolutions to indicate what direction it tracks.

Example: If the belt tracks to the right, adjust the right side non driven end adjusting rod (for double ended drives pick one end to adjust only) by following these steps:

Step 2a:

Step 2b:

Step 2c:

Step 2d:

Loosen the two (2) 5/8" drive locking nuts.

Turn the adjusting rod so as to move the right side non-driven end out until the belt is tracking straight.

Retighten the locking nuts.

If the above procedure does not correct the problem apply the same steps on the right side driven end.

Step 3:

Step 4:

Step 5:

Run the conveyor for at least 12 hours and readjust if necessary. Frequent inspection is required.

After 72 hours operating, adjust the belt to track straight if required.

Check the belt at least monthly, or as required, to insure straight tracking.

WARNING:

When moving conveyor, never allow frame to twist; such as would occur if one corner were raised higher than the others. Misalignment and damage to the frame may occur.

COMMENTS:

In order to insure optimum durablity of Milnor conveyor belts, it is essential that the belt "tracks" straight on the conveyor frame. These instructions provide step by step procedures to insure proper belt tracking.

Drive is normally located on discharge end. Double end drives are used on reversing conveyors over 16 feet long. Drive may be located on load end of short conveyors (4 feet).

This drawing intended for use with both flat bed and loading conveyor. Loading conveyor has metal dividers on belt, not shown here.

BELT DIRECTION

LEFT SIDE

DRIVE END

RIGHT SIDE

ADJUST OUT TO CORRECT TRACKING

RIGHT IF ADJUSTMENT ON LOAD END

WILL NOT CORRECT TRACKING.

ADJUSTING ROD

LOOSEN LOCKING NUTS BEFORE AND

TIGHTEN AFTER ADJUSTING

ADJUST OUT TO CORRECT

TRACKING RIGHT

TRACKS RIGHT

LOAD END

MSINC402AE/86361 (1 of 1)

ÈINSTALLING ANTI-FRICTION STRIPS

APPLICABILITY: Flatbed conveyors

SCOPE: Purpose for; how to install strips

The polymer anti-friction strips shipped with your conveyor must be installed after the conveyor sections have been joined together. These strips which run continuous along the entire conveyor length, prevent the conveyor belt from adhering to the bed and straining the motor when the conveyor is started.

Once all conveyor sections have been joined and before installing the belt, attach these strips as shown in the fig-ure below using the flat head bolts and self locking nuts provided. Note that the holes in both the strips and the conveyor bed were pre-drilled.

MSIND422AE/86462 (1 of 4)

ÈINCLINED STORAGE CONVEYOR ASSEMBLY INSTRUCTIONS

APPLICABILITY: Inclined Storage Conveyor

SCOPE: How to assemble

NOTE: Storage conveyors are generally shipped fully assembled or in various stages of assembly depend-ing on special site conditions.

ÊGeneral It is recommended to assemble inclined COSTO conveyors in the following sequence:

1. Join beds.

2. Install plastic anti-friction strips.

3. Install adjustment leg mounts.

4. Install belt to conveyor bed.

5. Install load end legs.

6. Install unloading end legs.

7. Install middle legs.

8. Install cross members.

9. Anchor bolt legs to floor where applicable.

10.Mount motor to gear reducer where applicable.

11.Make electrical connection and extend safety shut-off switch wires.

ÊInstallation Procedure

ËJoining Beds

Each conveyor bed is comprised of one or more 4, 7, or 9 foot section.

The connection between bed sections is made by eight 3/8" carriage bolts at each corner of the middle section or junction of two beds. (Combination: nut, bolt, lockwasher, and flatwasher.) Six on the side and two underneath.

When bolting sections together make sure all butting surfaces are flush and the conveyor is level along the entire length. Refer to BMP820024 for flat bed conveyor assembly details.

ËInstall Plastic Anti-Friction Strips The polymer anti-friction strips shipped with your conveyor must be installed after the conveyor sections have been joined together. These strips which run continuously along the entire conveyor length, prevent the conveyor belt from adhering to the bed and straining the motor when the conveyor is started.

Attach anti-friction strips as shown in the figure next page using the flat head bolts and self-locking nuts sup-plied. Note that the strips and conveyor bed were pre-drilled. Bolt heads must be countersunk slightly below the top surface of the strip to assure that bolt head doesn’t cut into belt material.

ËInstall Adjustment Leg Mounts In order to raise conveyor from resting on floor, it is recommended to mount the adjustment leg mounts to the sides of the conveyor. Adjustment leg mount locations are marked with tags or illustrated by a shop sketch for positioning.

Mounts are bolted to the conveyor bed in four places, as shown in the photo right, and figure next page.

Note: All bolts for attaching leg adjustment mounts, legs, and cross members are 1/2". All nuts have full threads and are used in a combination of bolt, lock-washer, and nut. Flatwashers are added where slotted holes are being used.

MSIND422AE/86462 (2 of 4)

ËInstall Belt Belt tension adjustments are made on the idler (load) end. The bearing carrier is attached loosely to adjust tension after belt is on. See BMP820024 for more information.

ËInstall Load End Legs Raise load end of conveyor to load height. Position legs on adjustment leg mounts (see illustration above) and secure loosely.

ËInstall Unloading End Legs Raise unloading end of conveyor to discharge height and secure legs to adjustment leg mounts.

CAUTION: Do not lift conveyor from roller. This may damage the roller or belt. Lift from connecting bracket or conveyor bed. See BMP820024.

Install Middle Legs

Install middle legs to adjustment leg mount and secure. Go back and adjust all legs vertically and tighten all bolts.

MSIND422AE/86462 (3 of 4)

Install Crossmembers

Cross members are used in pairs, bracing legs front and back.

Shorter legs ranging from 9" to 26" do not require crossmem-bers, whereas legs ranging from 27" to 145" require cross-brac-ing approximately 13" from the bottom of the leg using pre-drilled holes. Taller legs, ranging from 40" to 145" require a second pair of cross braces placed near the top of the legs where bolt holes are available. (See photo right.)

Anchor to Foundation

Use one 1" 0 anchor bolt per leg. Anchor bolt hardware not supplied by Pellerin Milnor Corporation.

Mount Motors

All conveyors are shipped with gear reducers mounted to the drive roller (unloading end). Motors may need to be mounted to the gear reducer if shipped detached.

Note: No adjustment is needed on the drive end of the system.

Additional Connections

Make electrical connection and extend safety shut-off switch wires.

MSIND422AE/86462 (4 of 4)

Fastener Torque Requirements

PELLERIN MILNOR CORPORATION

BIUUUM04 (Published) Book specs- Dates: 20080506 / 20080506 / 20080506 Lang: ENG01 Applic: UUU

Fastener Torque Requirements Torque requirements for other fasteners are specified in the specific document which describes the assembly. If fastener torque specifications or threadlocking compound requirements in an assembly document vary from the specifications in this document, use the assembly document.

Figure 1: Common Bolts Used in Milnor Equipment

Bolt Head Identifying Marks Legend

A. SAE Grades 1 and 2, ASTM A307, and stainless steel B. ASTM A354 Grade BC C. SAE Grade 5, ASTM A449 D. SAE Grade 8 and ASTM A354 BD

1. Torque Values The tables below list the standard size, grade, threadlocking compound, and torque requirements for fasteners commonly used on Milnor® equipment.

Note 1: Data derived from Pellerin Milnor® Corporation “Bolt Torque Specification” (bolt_torque_milnor.xls/2002096).

1.1. Carbon Steel Fasteners

1.1.1. Without Threadlocking Compound

Table 1: Torque Values for Dry Fasteners 5/16-inch and Smaller

Bolt Grade Grade 2 Grade 5 Grade 8 Grade BC

Bolt Size Pound-Inches N-m Pound-Inches N-m Pound-Inches N-m Pound-Inches N-m 1/4 x 20 66 7 101 11 143 16 126 14 1/4 x 28 76 9 116 13 163 18 -- -- 5/16 x 18 136 15 209 24 295 33 258 29 5/16 x 24 150 17 232 26 325 37 -- --

Table 2: Torque Values for Dry Fasteners Larger Than 5/16-inch Bolt Grade

Grade 2 Grade 5 Grade 8 Grade BC Bolt Size Pound-feet N-m Pound-feet N-m Pound-feet N-m Pound-feet N-m 3/8 x 16 20 27 31 42 44 59 38 52 3/8 x 24 23 31 35 47 50 68 -- -- 7/16 x 14 32 43 49 66 70 95 61 83 7/16 x 20 36 49 55 75 78 105 -- -- 1/2 x 13 49 66 75 102 107 145 93 126 1/2 x 20 55 75 85 115 120 163 -- -- 9/16 x 12 70 95 109 148 154 209 134 182 9/16 x 18 78 106 121 164 171 232 -- -- 5/8 x 11 97 131 150 203 212 287 186 252 5/8 x 18 110 149 170 231 240 325 -- -- 3/4 x 10 172 233 266 361 376 510 329 446 3/14 x 16 192 261 297 403 420 569 -- -- 7/8 x 9 167 226 429 582 606 821 531 719

7/8 x 14 184 249 473 641 668 906 -- -- 1 x 8 250 339 644 873 909 1232 796 1079 1 x 12 274 371 704 954 994 1348 -- -- 1 x 14 281 381 723 980 1020 1383 -- --

1 1/8 x 7 354 480 794 1077 1287 1745 1126 1527 1 1/8 x 12 397 538 891 1208 1444 1958 -- -- 1 1/4 x 7 500 678 1120 1519 1817 2464 1590 2155

1 1/4 x 12 553 750 1241 1682 2012 2728 -- -- 1 3/8 x 6 655 888 1469 1992 2382 3230 2085 2827

1 3/8 x 12 746 1011 1672 2267 2712 3677 -- -- 1 1/2 x 6 869 1178 1949 2642 3161 4286 2767 3751

1 1/2 x 12 979 1327 2194 2974 3557 4822 -- --

Table 3: Torque Values for Plated Fasteners 5/16-inch and Smaller Bolt Grade

Grade 2 Grade 5 Grade 8 Grade BC Bolt Size Pound-Inches N-m Pound-Inches N-m Pound-Inches N-m Pound-Inches N-m 1/4 x 20 49 6 76 9 107 12 95 11 1/4 x 28 56 6 88 10 122 14 -- -- 5/16 x 18 102 12 156 18 222 25 193 22 5/16 x 24 113 13 174 20 245 28 -- --

Table 4: Torque Values for Plated Fasteners Larger Than 5/16-inch Bolt Grade

Grade 2 Grade 5 Grade 8 Grade BC Bolt Size Pound-feet N-m Pound-feet N-m Pound-feet N-m Pound-feet N-m 3/8 x 16 15 20 23 31 33 44 29 38 3/8 x 24 17 23 26 35 37 49 -- -- 7/16 x 14 24 32 37 50 52 71 46 61 7/16 x 20 27 36 41 55 58 78 -- -- 1/2 x 13 37 49 56 76 80 106 70 93 1/2 x 20 41 55 64 85 90 120 -- -- 9/16 x 12 53 70 81 110 115 153 101 134 9/16 x 18 59 79 91 122 128 174 -- -- 5/8 x 11 73 97 113 150 159 212 139 186 5/8 x 18 83 110 127 172 180 240 -- -- 3/4 x 10 129 173 200 266 282 376 246 329 3/14 x 16 144 192 223 297 315 420 -- -- 7/8 x 9 125 166 322 430 455 606 398 531

7/8 x 14 138 184 355 474 501 668 -- -- 1 x 8 188 250 483 644 682 909 597 796 1 x 12 205 274 528 716 746 995 -- -- 1 x 14 210 280 542 735 765 1037 -- --

1 1/8 x 7 266 354 595 807 966 1288 845 1126 1 1/8 x 12 298 404 668 890 1083 1444 -- -- 1 1/4 x 7 375 500 840 1120 1363 1817 1192 1590

1 1/4 x 12 415 553 930 1261 1509 2013 -- -- 1 3/8 x 6 491 655 1102 1470 1787 2382 1564 2085

1 3/8 x 12 559 758 1254 1672 2034 2712 -- -- 1 1/2 x 6 652 870 1462 1982 2371 3161 2075 2767

1 1/2 x 12 733 994 1645 2194 2668 3557 -- --

1.1.2. With Threadlocking Compound

Table 5: Threadlocking Compound Selection by Bolt Size

Bolt Size LocTite Product 1/4" 1/4" – 5/8" 5/8" – 7/8" 1" +

LocTite 222 OK LocTite 242 OK LocTite 262 OK LocTite 272 High temperature LocTite 277 OK

Table 6: Torque Values for Applications of LocTite 222 Bolt Grade

Grade 2 Grade 5 Grade 8 Grade BC

Bolt Size Pound-inches N-m Pound-inches N-m Pound-inches N-m Pound-inches N-m

1/4 x 20 60 7 96 11 132 15 108 12 1/4 x 28 72 8 108 12 144 16 -- --

Table 7: Torque Values for Applications of LocTite 242 Bolt Grade

Grade 2 Grade 5 Grade 8 Grade BC Bolt Size Pound-feet N-m Pound-feet N-m Pound-feet N-m Pound-feet N-m 5/16 x 18 11 15 17 23 25 34 22 30 5/16 x 24 13 18 19 26 27 37 27 37 3/8 x 16 20 27 31 42 44 60 38 52 3/8 x 24 23 31 35 47 50 68 -- -- 7/16 x 14 32 43 49 66 70 95 61 83 7/16 x 20 36 49 55 75 78 106 -- -- 1/2 x 13 49 66 75 102 107 145 93 126 1/2 x 20 55 75 85 115 120 163 -- -- 9/16 x 12 70 95 109 148 154 209 134 182 9/16 x 18 78 106 121 164 171 232 -- -- 5/8 x 11 97 132 150 203 212 287 186 252 5/8 x 18 110 149 170 230 240 325 -- --

Table 8: Torque Values for Applications of LocTite 262 Bolt Grade

Grade 2 Grade 5 Grade 8 Grade BC Bolt Size Pound-feet N-m Pound-feet N-m Pound-feet N-m Pound-feet N-m 3/4 x 10 155 210 240 325 338 458 296 401 3/4 x 16 173 235 267 362 378 512 -- -- 7/8 x 9 150 203 386 523 546 740 477 647

7/8 x 14 165 224 426 578 601 815 -- --

Table 9: Torque Values for Applications of LocTite 272 (High Temperature) Bolt Grade

Grade 2 Grade 5 Grade 8 Grade BC Bolt Size Pound-feet N-m Pound-feet N-m Pound-feet N-m Pound-feet N-m

1 x 8 350 475 901 1222 1272 1725 1114 1510 1 x 12 383 519 986 1337 1392 1887 -- -- 1 x 14 393 533 1012 1372 1428 1936 -- --

1-1/8 x 7 496 672 1111 1506 1802 2443 1577 2138 1-1/8 x 12 556 754 1247 1691 2022 2741 -- -- 1-1/4 x 7 700 949 1568 2126 2544 3449 2226 3018 1-1/4 x 12 774 1049 1737 2355 2816 3818 -- -- 1-3/8 x 6 917 1243 2056 2788 3335 4522 2919 3958 1-3/8 x 12 1044 1415 2341 3174 3797 5148 -- -- 1-1/2 x 6 1217 1650 2729 3700 4426 6001 3873 5251 1-1/2 x 12 1369 1856 3071 4164 4980 6752 -- --

Table 10: Torque Values for Applications of LocTite 277 Bolt Grade

Grade 2 Grade 5 Grade 8 Grade BC Bolt Size Pound-feet N-m Pound-feet N-m Pound-feet N-m Pound-feet N-m

1 x 8 325 441 837 1135 1181 1601 1034 1402 1 x 12 356 483 916 1242 1293 1753 -- -- 1 x 14 365 495 939 1273 1326 1798 -- --

1-1/8 x 7 461 625 1032 1399 1674 2270 1464 1985 1-1/8 x 12 516 700 1158 1570 1877 2545 -- -- 1-1/4 x 7 650 881 1456 1974 2362 3202 2067 2802 1-1/4 x 12 719 975 1613 2187 2615 3545 -- -- 1-3/8 x 6 851 1154 1909 2588 3097 4199 2710 3674 1-3/8 x 12 970 1315 2174 2948 3526 4781 -- -- 1-1/2 x 6 1130 1532 2534 3436 4110 5572 3597 4877 1-1/2 x 12 1271 1723 2852 3867 4624 6269 -- --

1.2. Stainless Steel Fasteners

Table 11: Torque Values for Stainless Steel Fasteners 5/16-inch and Smaller

316 Stainless 18-8 Stainless 18-8 Stainless with

Loctite 767 Nominal Bolt Size

Pound- Inches N-m

Pound- Inches N-m

Pound- Inches N-m

1/4 x 20 79 9 76 9 45 5 1/4 x 28 100 11 94 11 56 6 5/16 x 18 138 16 132 15 79 9 5/16 x 24 148 17 142 16 85 10

Table 12: Torque Values for Stainless Steel Fasteners Larger Than 5/16-inch

316 Stainless 18-8 Stainless 18-8 Stainless with

Loctite 767 Bolt Size Pound-feet N-m Pound-feet N-m Pound-feet N-m 3/8 x 16 21 28 20 27 12 16 3/8 x 24 23 31 22 29 13 18 7/16 x 14 33 44 31 42 19 25 7/16 x 20 35 47 33 45 20 27 1/2 x 13 45 61 43 58 26 35 1/2 x 20 47 64 45 61 27 37 9/16 x 12 59 81 57 77 34 46 9/16 x 18 66 89 63 85 38 51 5/8 x 11 97 131 93 125 56 75 5/8 x 18 108 150 104 141 62 84 3/4 x 10 132 179 128 173 77 104 3/4 x 16 130 176 124 168 75 101 7/8 x 9 203 275 194 263 116 158

7/8 x 14 202 273 193 262 116 157 1 x 8 300 406 287 389 172 233 1 x 14 271 367 259 351 156 211

1-1/8 x 7 432 586 413 560 248 336 1-1/8 x 12 408 553 390 529 234 317 1-1/4 x 7 546 740 523 709 314 425 1-1/4 x 12 504 683 480 651 288 390 1-1/2 x 6 930 1261 888 1204 533 722 1-1/2 x 12 732 992 703 953 422 572

2. Preparation WARNING 1 : Fire Hazard—Some solvents and primer products are flammable.

• Use in a well ventilated area.

• Do not use flammable products near ignition sources.

1. Clean all threads with a wire brush, a tap, or a die.

2. Degrease the fasteners and the mating threads with a cleaning solvent. Wipe the parts dry.

Note 2: LocTite 7649 Primer N™ will remove grease from parts, but it costs more than a standard organic or petroleum solvent.

3. Prime the fasteners and the mating threads with LocTite 7649 Primer N™ or equal. Allow the primer to dry for at least one minute.

3. Application of Threadlocking Compound CAUTION 2 : Malfunction Hazard—Improper application of threadlocking compounds may result in fasteners becoming loose from impact, heat, or vibration. Loose fasteners can cause the equipment to malfunction.

• Read and follow the threadlocking compound manufacturer's instructions and warnings.

Apply threadlocking compound to the thread engagement areas of fasteners and mating threads only.

Figure 2: Blind Hole

Application Coverage

Legend A. No threadlocking compound here B. Apply here C. Fill all gaps with threadlocking compound

3.1. Blind Holes

1. Apply several drops of threadlocking compound down the female threads to the bottom of the hole.

2. Apply several drops of threadlocking compound to the bolt.

3. Tighten bolt to value shown in the appropriate table (Table 5 through Table 11).

3.2. Through Holes

1. Insert bolt through assembly.

2. Apply several drops of threadlocking compound to the bolt thread area that will engage the nut.

3. Tighten bolt to value shown in the appropriate table (Table 5 through Table 11).

Figure 3: Through Hole

Application Legend

A. No threadlocking compound here B. Cover this area

x. Nut depth

3.3. Disassembly—For low-strength and medium-strength products, disassemble with hand tools.

For high-strength products, apply localized heat for five minutes. Disassemble with hand tools while the parts are still hot.

Figure 4: Disassembly

Use Localized Heat Legend

A. Soldering gun heating small fastener B. Torch heating large fastener

— End of BIUUUM04 —