Vortec THREAD GUARD 424 Use and care manual

OperatiOn & Safety
inStructiOnS
Please read all instructions BEFORE
attempting to use this product
IMPORTANT
LIT0197
OperatiOn & Safety
inStructiOnS
Please read all instructions BEFORE
attempting to use this product
IMPORTANT
tHreaD GuarD®
neeDLe cOOLer
Model 424 and variants
fiLter anD repLacement part item numberS
Vortec Model Combination Filter /
Pressure Regulator Oil Removal Filter Dual Outlet Flex Nozzle Replacement Generator Kits (5 pcs)
424 402-20 701S-48 424-30 106GK-8H
tabLe 1: fiLter recOmmenDatiOnS
tabLe 2: DetermininG cOmpreSSeD air Line Size
1. Calculate total product compressed air consumption (SCFM, SLPM).
2. Determine length of compressed air line required for connection to main supply.
3. Locate pipe length in left column and read to the right to nd the compressed air requirements.
4. Locate pipe size at top of column.
maximum airfLOw (Scfm) tHrOuGH pipe at 5 pSiG preSSure DrOp (100 pSiG anD 70Of)
Pipe Length
(Feet)
Pipe Size (Nominal) - Schedule 40
1/4 3/8 1/2 3/4 1 1-1/4 1-1/2 2 2-1/2
10 29 65 120 254 480 978 1483 2863 4536
20 21 46 85 180 340 692 1049 2024 3208
30 17 37 70 147 277 565 856 1653 2619
40 15 32 60 127 240 489 792 1431 2268
50 13 29 54 114 215 437 663 1280 2029
60 12 26 49 104 196 399 606 116 9 1852
70 11 25 46 96 181 370 561 1082 1715
80 10 23 43 90 170 346 524 1012 1604
90 10 22 40 85 160 326 494 954 1512
100 9 21 38 80 152 309 469 905 1435
maximum airfLOw (SLpm) tHrOuGH pipe at 0.3 bar preSSure DrOp (6.9 bar anD 21Oc)
Pipe Length
(Meters)
Pipe Size (Nominal) - Schedule 40
1/4 3/8 1/2 3/4 1 1-1/4 1-1/2 2 2-1/2
3 821 1840 3396 7188 13584 27677 42117 81023 128369
6 594 1302 2406 5094 9622 19584 29687 57279 90786
9 481 1047 1981 4160 7839 15990 24225 46780 74188
12 425 906 1698 3594 6792 13839 20999 40497 64184
15 368 821 1528 3226 6085 12367 18763 36224 57421
18 340 736 1387 2943 5547 11292 17150 33083 52412
21 311 708 1302 2717 5122 10471 15877 30621 48535
24 283 651 1217 2547 4811 9792 14829 28640 45393
27 269 623 113 2 2406 4528 9226 13980 26998 42790
31 255 594 1075 2264 4302 8745 13273 25612 40611
Rubber hose maximum airow rating: 1/2” I.D. rubber hose = 3/8” pipe; 3/4” I.D. rubber hose = 1/2” pipe
Pelmar Engineering Ltd.
Tel. [phone]
E-mail: [email protected]
Web site: www.pelmareng.com

maintenance
The Thread Guard has no moving parts and can be
disassembled for cleaning.
1. Remove the black cold air outlet tting with a spanner
wrench.
2. Remove the small O-ring, plastic bushing, brass
generator and thin plastic “washer”.
3. Clean all parts especially the six small orices in the
brass generator.
4. Reassemble in the reverse order (thin plastic washer
rst, then the generator, bushing and O-Ring).
5. Tighten the cold air outlet tting to 50 in-lbs or more.
6. If the orices in the generator require frequent cleaning,
this indicates that the compressed air is not being
ltered or the lter element requires changing.
7. Change the lter element as needed.The lter/regulator
supplied with some Thread Guard models utilizes a 5
micron element.
8. Be sure to shut off the compressed air supply to the
lter before attempting to change the element or before
any maintenance.
1. Do not operate a Thread Guard at compressed air
pressures above 150 psig (10.3 Bar).
2. Do not operate a Thread Guard at compressed air
temperatures above 110oF (43oC).
3. Avoid direct contact with compressed air.
4. Do not direct compressed air at any person.
5. When using compressed air, wear safety glasses
with side shields.
NOTE: There is no need to limit compressed air pressure
to a maximum of 30 psig (2 bar). It is not possible to
block the ow of air from the Thread Guard to register 30
psig (2 bar) on a test gauge.
tHreaD GuarD®aSSembLy
LimiteD warranty
Vortec compressed air products manufactured by ITW Air
Management will be replaced or repaired if found to be
defective due to manufacture defect within ten years from
the date of invoice.
Refer to our website www.pelmareng.com for full
warranty details and limitations. ITW Air Management
makes no specific warranty merchantability or warrant of
fitness to a particular purpose.
Insufficient airow may be caused by the following:
1. Undersized compressed air line size.
2. Compressed air pressure too low.
3. Partial or complete blockage of internal compressed air
path, due to dirt. See Maintenance section for cleaning
instructions; and Compressed Air Supply section for
lter recommendations.
4. Loose cold cap. This may occur if not tightened properly
after disassembled for cleaning.
If trouble persists, please contact Vortec at
888-754-6329
trOubLeSHOOtinG
The compressed air supply must be ltered to remove
water and dirt using a 5 micron or smaller lter. A
combination lter/regulator is included with some Thread
Guard models to accomplish this. If oil is present in the
compressed air supply, remove the oil using a 0.01 micron
(maximum) coalescing air lter. Failure to use a lter may
cause clogging (and freezing) of the compressed air paths
inside the Vortec product. Filter recommendations are
given in Table 1.
Filter elements must be changed on a regular basis.
Frequency of change is determined by the condition of
the compressed air supply. Filters should be installed in
the compressed air supply line as close as possible to the
Vortec product.
The appropriate size of compressed air supply line should
be selected to ensure optimal performance of the Vortec
product. Please refer to Table 2 to determine what supply
line size is recommended for your application.
Contact Vortec at 1-800-441-7475 for further assistance.
cOmpreSSeD air SuppLy
inStaLLatiOn anD OperatiOn
1. Use two supplied mounting clamps to attach the Thread
Guard to an appropriate location on your machine.
Do not block either of the hot exhaust holes with the
mounting clamps.
2. Mount the lter/regulator (if supplied) to a xed 1/8”pipe
so that the lter bowl points downward.
3. Cold airow and temperature can be changed by
adjusting the pressure regulator (if included or supplied
separately) in the compressed air supply.
4. Set the pressure regulator to the lowest pressure that
permits adequate cooling of the needle.
intrODuctiOn
The Thread Guard is designed to use ltered compressed
air to cool needles on commercial sewing machines without
the use of any refrigerants. The Thread Guard consumes
8 SCFM of compressed air at 100 psig and approximately
5 SCFM if operated at 60 psig.
Model 424
(Drawings shown below are not to scale)
8H Bushing (see Table 1)
8 cfm Generator (see Table 1)
GeneraL Safety cOnSiDeratiOnS
warninG: cOmpreSSeD air cOuLD cauSe
DeatH, bLinDneSS Or injury