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PC-777579
Revision AMarch 22, 2001
PARTS CATALOGCOMPUTER RELAY UNIT
PC-777579
COMPUTER/RELAY UNIT
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THIS PAGE LEFT BLANK INTENTIONALLY
PC-777579
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WARNING
AFTER REPLACEMENT OF ANY PART IN THIS DEVICE, THE
OPERATION OF THE DEVICE MUST PASS TESTS PRESCRIBED IN
THE LATEST ISSUE OF THE APPLICABLE NYAB TEST
SPECIFICATION. WHEN THIS DEVICE IS APPLIED TO THE BRAKE
EQUIPMENT ARRANGEMENT, A STATIONARY VEHICLE TEST MUST
BE MADE TO ENSURE THAT THIS DEVICE FUNCTIONS
PROPERLY IN THE TOTAL BRAKE EQUIPMENT ARRANGEMENT.
(CONSULT YOUR LOCAL NEW YORK AIR BRAKE CORPORATION
REPRESENTATIVE TO IDENTIFY THE TEST SPECIFICATIONS, WITH
LATEST REVISION DATE, THAT COVERS THIS DEVICE.)
CAUTION
THIS CATALOG IS PUBLISHED AS AN AID TO IDENTIFY THE DETAIL
PARTS THAT MAKE UP THIS COMPLETE DEVICE. REFER TO
APPLICABLE MAINTENANCE PUBLICATIONS BEFORE ATTEMPTING
EITHER THE DISASSEMBLY OR THE ASSEMBLY OF THIS DEVICE.
IMPORTANT
Only NYAB supplied parts are to be used in the repair of this device in order
to obtain satisfactory operation. Commercially available parts are
unacceptable.
PC-777579
COMPUTER/RELAY UNIT
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Figure 1
PC-777579
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FIG. & REPL. PART REF. NO.INDEX PLAN NO. NO. REQ’D. DESCRIPTION
Replacement Plan:A = 100% Replacement at every scheduled overhaul.B = Replacement dependent upon condition of part.C = Replace if damaged during repair, maintenance or overhaul.
1- 777579 777579 COMPUTER/RELAY UNIT
1-1 C 775692 775692 1 . CRU ENCLOSURE ASSEMBLY (See Figure 2.)
1-2 C 777178 777178 2 . SCREW, Hex Head Cap Stainless Steel 1/4"-20 UNC-2A x 1" long
1-3 C 774331 774331 4 . WASHER, Lock Stainless Steel 1/4"
1-4 C 770464 770464 10 . WASHER, Flat Stainless Steel 1/4"
1-5 C 777400 777400 1 . JACKPOST
1-6 C 777399 777399 2 . SCREW, Leveling
1-7 C 777175 777175 4 . SCREW, Cheese Head Stainless Steel M 2.5 x 0.45 x 12 long
1-8 C 777122 777122 1 . FILLER PLATE
1-9 C 772929 772929 6 . SCREW, Round Head Slotted Stainless Steel 1/4-20 UNC-2A x 3/4" long
1-10 C 758852 758852 1 . WASHER, Shake Proof Lock Stainless Steel 1/4"
1-11 C N/A N/A 1 . COMPUTER ASSEMBLY (See Figure 3.)
1-12 C 773540 773540 1 . DECAL, Card Rack
PC-777579
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Figure 1
PC-777579
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FIG. & REPL. PART REF. NO.INDEX PLAN NO. NO. REQ’D. DESCRIPTION
Replacement Plan:A = 100% Replacement at every scheduled overhaul.B = Replacement dependent upon condition of part.C = Replace if damaged during repair, maintenance or overhaul.
1-
1-13 C 763565 763565 5 . SCREW, Round Head Stainless Steel #6-32 UNC-2A x 7/16" long
1-14 C 763578 763578 5 . LOCK WASHER Stainless Steel #6
1-15 C 763575 763575 5 . WASHER, Flat Stainless Steel #8
1-16 C 777119 777119 1 . MOUNTING BRACKET
1-17 C 772370 772370 1 . DIVIDER PLATE
1-18 C 760661 760661 6 . SCREW, Fillister Head Machine Steel, Pltd. #10-24 UNC x 3/4" long
1-19 C 763577 763577 12 . WASHER, Flat Stainless Steel #10
1-20 A 758062 MC-1345 6 . NUT, Elastic Stop Steel, Pltd. #10-24 UNC-3B x 0.187" t
1-21 C 772678 772678 1 . TIE DOWN BAR
1-22 A 772583 772583 6 . NUT, Elastic Stop Stainless Steel 1/4-20 UNC-3B x 0.203" t
1-23 C 777401 777401 1 . JACKPOST
1-24 C 777601 777601 1 . SPACER
1-25 C 772823 772823 1 . DECAL, Relay
PC-777579
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Figure 1
PC-777579
COMPUTER/RELAY UNIT
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FIG. & REPL. PART REF. NO.INDEX PLAN NO. NO. REQ’D. DESCRIPTION
Replacement Plan:A = 100% Replacement at every scheduled overhaul.B = Replacement dependent upon condition of part.C = Replace if damaged during repair, maintenance or overhaul.
1-
1-26 A 743901 RV-482 6 . NUT, Elastic Stop Steel, Pltd.
3/8"-16 UNC-3B x 0.4531" t
1-27 C 748831 VL-134 6 . WASHER, Flat Steel 3/8"
1-28 C 772573 772573 1 . RELAY INTERFACE UNIT (See Figure 5.)
1-29 A 772613 772613 2 . WASHER, Sealing Steel 1/4"
1-30 B 767851 767851 5 . RING TERMINAL, #8
1-31 B 742716 742716 20 . WIRE TIE
1-32 C 759352 759352 2 . DISCONNECT, Fast-On
1-33 C 772490 772490 1 . WIRE, 1C/20 AWG 2-1/2' long
1-34 B 772459 772459 1 . TAPE, Sealant 1' long
1-35 B 772458 772458 1 . TUBING, Adhesive Lined Shrink 3" long
1-36 B 775368 775368 50 . CABLE TIE
1-37 C 775427 775427 1 . CABLE ASSEMBLY, COM
1-38 C 772363 772363 1 . PCB ASSEMBLY, 24V Filter
1-39 C 771425 771425 1 . PCB ASSEMBLY, Driver
1-40 C 772708 772708 1 . PCB ASSEMBLY, Driver
PC-777579
COMPUTER/RELAY UNIT
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Figure 1
PC-777579
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FIG. & REPL. PART REF. NO.INDEX PLAN NO. NO. REQ’D. DESCRIPTION
Replacement Plan:A = 100% Replacement at every scheduled overhaul.B = Replacement dependent upon condition of part.C = Replace if damaged during repair, maintenance or overhaul.
1-
1-41 C 772361 772361 1 . PCB ASSEMBLY, SC1 Filter
1-42 C 772709 772709 1 . PCB ASSEMBLY, SC2 Filter
1-43 C 776109 776109 1 . CABLE ASSEMBLY, FL
1-44 C 775517 775517 1 . CABLE ASSEMBLY, Main Bundle
1-45 C 776107 776107 1 . CABLE ASSEMBLY, SV1
1-46 C 776108 776108 1 . CABLE ASSEMBLY, SV2
*1-47 C 772674 772674 2 . CABLE CLAMP
*1-48 B 772489 772489 14 . RING TERMINAL, #6
*1-49 B 768020 768020 2 . RING TERMINAL, #10
*1-50 C 763537 763537 1 . SHRINK TUBING, 1/16" 3' long
*1-51 C 752342 LR-236 1 . SHRINK TUBING, 1/2" 1' long
*1-52 C 762812 762812 1 . SHRINK TUBING, 3/4" 1' long
*1-53 C 730179 730179 1 . SHRINK TUBING, 1/4" 1' long
*1-54 C 772756 772756 1 . FIBER OPTIC CABLE ASSEMBLY
*1-55 C 775423 775423 1 . EDGING, Portective 1' long
*1-56 C 776132 776132 1 . GROUND CONE, Conduit 1/2"
*1-57 C 776133 776133 1 . GROUND CONE, Conduit 3/4"
*Not shown in illustration.
PC-777579
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Figure 1
PC-777579
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FIG. & REPL. PART REF. NO.INDEX PLAN NO. NO. REQ’D. DESCRIPTION
Replacement Plan:A = 100% Replacement at every scheduled overhaul.B = Replacement dependent upon condition of part.C = Replace if damaged during repair, maintenance or overhaul.
1-
*1-58 C 776134 776134 1 . GROUND CONE, Conduit 1"
*1-59 C 777395 777395 1 . WEDGE
*Not shown in illustration.
PC-777579
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Figure 2
PC-777579
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FIG. & REPL. PART REF. NO.INDEX PLAN NO. NO. REQ’D. DESCRIPTION
Replacement Plan:A = 100% Replacement at every scheduled overhaul.B = Replacement dependent upon condition of part.C = Replace if damaged during repair, maintenance or overhaul.
2- 775692 775692 1 CRU ENCLOSURE ASSEMBLY
2-1 C 772722 772722 1 . CRU ENCLOSURE (Includes items 2-2 through 2-7.)
C 772758 772758 14 . . LATCH ASSEMBLY (Includes items 2-2 through 2-5.)
2-2 C 772053 772053 14 . . . SCREW, Hex Head Slotted Stainless Steel 1/4-20 UNC-2A x 3/4" long
2-3 C 770464 770464 14 . . . WASHER, Flat Stainless Steel
1/2"
2-4 C 772765 772765 14 . . . CLAMP
2-5 C 772764 772764 14 . . . PUSHNUT Steel, Pltd.
2-6 B 772759 772759 1 . GASKET STRIP Neoprene 3/16" x 1/2" x 92" long
2-7 B 772369 772369 1 . GASKET STRIPEMI Gasket
9/64" x 1/2" x 50" long
2-8 C 765787 765787 2 . SCREW, Hex Head Cap Stainless Steel 1/4"-20 UNC-2A x 3/4" long
2-9 C 772613 772613 2 . WASHER, Sealing Steel 1/4"
2-10 A 772583 772583 2 . NUT, Elastic Stop Stainless Steel 1/4-20 UNC-3B x 0.203" t
PC-777579
COMPUTER/RELAY UNIT
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Figure 2
PC-777579
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FIG. & REPL. PART REF. NO.INDEX PLAN NO. NO. REQ’D. DESCRIPTION
Replacement Plan:A = 100% Replacement at every scheduled overhaul.B = Replacement dependent upon condition of part.C = Replace if damaged during repair, maintenance or overhaul.
2-
2-11 C 770464 770464 6 . WASHER, Flat Stainless Steel 1/4"
2-12 C 775936 775936 1 . BRACKET
2-13 C 758276 EV-2478 4 . SCREW, Fillister Head Steel, Pltd. #10-24 UNC-2A x 1" long
2-14 C 767437 767437 1 . TERMINAL BLOCK
2-15 C 772601 772601 1 . MARKER STRIP
2-16 C 763577 763577 14 . WASHER, Flat Stainless Steel #10
2-17 C 758062 MC-1345 4 . NUT, Elastic Stop Steel, Pltd. #10-14 UNC-3B x 0.187" t
2-18 C 763568 763568 2 . SCREW, Pan Head Stainless Steel #6-32 UNC-2A x 3/4" long
2-19 C 772775 772775 1 . TIMER ASSEMBLY
2-20 C 763575 763575 2 . WASHER, Flat Stainless Steel #8
2-21 A 752641 752641 2 . NUT, Elastic Stop Steel, Pltd. #6-32 UNC-2B x 0.187" t
2-22 C 763573 763573 6 . NUT, Hex Stainless Steel #8-32 UNC-2B x 0.125" t
PC-777579
COMPUTER/RELAY UNIT
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Figure 2
PC-777579
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FIG. & REPL. PART REF. NO.INDEX PLAN NO. NO. REQ’D. DESCRIPTION
Replacement Plan:A = 100% Replacement at every scheduled overhaul.B = Replacement dependent upon condition of part.C = Replace if damaged during repair, maintenance or overhaul.
2-
2-23 C 763579 763579 26 . WASHER, Lock Stainless Steel #8
2-24 C 763576 763576 26 . WASHER, Flat Stainless Steel #8
2-25 C 774167 774167 1 . FITTING, Conduit 1-1/2"
2-26 B 772791 772791 1 . CONDUIT 1-1/2" x 0.886' long
2-27 C 773237 773237 1 . FITTING, Conduit 1-1/2", 45 deg
2-28 C 773119 773119 1 . SEALING RING, 1-1/2"
2-29 C 773120 773120 1 . LOCKNUT, 1-1/2"
2-30 B 773790 773790 1 . CONDUIT 3/4" x 19.75' long
2-31 C 773632 773632 1 . FITTING, Conduit 3/4", 45 deg
2-32 C 774033 774033 1 . LOCKNUT, Sealing, 3/4"
2-33 C 772774 772774 1 . BUSHING, Insulated, 3/4"
2-34 B 773791 773791 1 . CONDUIT 1" x 8.66' long
2-35 C 773654 773654 1 . FITTING, Conduit 1", 90 deg
2-36 C 772463 772463 3 . STRAIN RELIEF, 1-1/4"
PC-777579
COMPUTER/RELAY UNIT
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Figure 2
PC-777579
COMPUTER/RELAY UNIT
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FIG. & REPL. PART REF. NO.INDEX PLAN NO. NO. REQ’D. DESCRIPTION
Replacement Plan:A = 100% Replacement at every scheduled overhaul.B = Replacement dependent upon condition of part.C = Replace if damaged during repair, maintenance or overhaul.
2-
2-37 A 772465 772465 3 . SEALING RING
2-38 C 772570 772570 3 . LOCKNUT
2-39 C 772464 772464 3 . INSULATED BUSHING
2-40 C 762433 762433 2 . FITTING, Conduit 3/4"
2-41 C 773721 773721 4 . NUT, Hex Stainless Steel 1/4"-20
2-42 C 758852 758852 4 . WASHER, Shake Proof Lock Stainless Steel 1/4"
2-43 C 775608 775608 1 . CAPOFF
2-44 C 774026 774026 1 . GROUNDING STRAP
*2-45 C 772379 772379 4 . NUT, Extruded Panel Type “U” 1/4-20 x 1-3/16" long
*2-46 C 775467 775467 1 . CONDUIT 1/2" x 32" long
*Not shown in illustration.
PC-777579
COMPUTER/RELAY UNIT
22
Figure 3
PC-777579
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FIG. & REPL. PART REF. NO.INDEX PLAN NO. NO. REQ’D. DESCRIPTION
Replacement Plan:A = 100% Replacement at every scheduled overhaul.B = Replacement dependent upon condition of part.C = Replace if damaged during repair, maintenance or overhaul.
3- COMPUTER ASSEMBLY
3-1 C 772835 772835 1 . CARD CAGE
3-2 C 772932 772932 1 . FILLER PLATE (8 HP)
3-3 C 772667 772667 2 . FILLER PLATE (6 HP)
3-4 C 772375 772375 1 . TJB PCB ASSEMBLY
3-5 C 774160 774160 1 . ADZ PCB ASSEMBLY
3-6 C 777783 777783 1 . COM PCB ASSEMBLY WITH SOFTWARE
3-7 C 777784 777784 1 . CPZ PCB ASSEMBLY WITH SOFTWARE
3-8 C 774472 774472 1 . DIZ PCB ASSEMBLY
3-9 C 772757 772757 1 . FOR PCB ASSEMBLY (Channel ST2)
3-10 C 772574 772574 1 . SS5 PCB ASSEMBLY
3-11 C 772147 772147 1 . SS1 PCB ASSEMBLY
3-12 C 772145 772145 1 . BEA PCB ASSEMBLY
3-13 C 772806 772806 1 . EPA2 PCB ASSEMBLY
3-14 C 772143 772143 1 . EPA1 PCB ASSEMBLY
3-15 C 772665 772665 1 . SV PCB ASSEMBLY
3-16 C 773504 773504 1 . SVJ PCB ASSEMBLY
PC-777579
COMPUTER/RELAY UNIT
24
Figure 4
PC-777579
COMPUTER/RELAY UNIT
25
FIG. & REPL. PART REF. NO.INDEX PLAN NO. NO. REQ’D. DESCRIPTION
Replacement Plan:A = 100% Replacement at every scheduled overhaul.B = Replacement dependent upon condition of part.C = Replace if damaged during repair, maintenance or overhaul.
4- 772753 772753 RELAY INTERFACE UNIT
4-1 C 772752 772752 1 . BASE PLATE ASSEMBLY
4-2 C 777178 777178 4 . SCREW, Hex Head Cap Screw Stainless Steel 1/4"-20 UNC-2A x 1" long
4-3 C 770464 770464 11 . WASHER, Flat Stainless Steel 1/4"
4-4 C 772999 772999 1 . SUBRACK
4-5 A 772583 772583 6 . NUT, Elastic Stop Stainless Steel 1/4"-20 UNC-3B x 0.203" t
4-6 C 772597 772597 1 . DECAL
4-7 C 772929 772929 1 . SCREW, Round Head Stainless Steel 1/4"-20 UNC-2A x 3/4" long
4-8 C 750954 750954 1 . LOCK WASHER Steel, Pltd. 1/4"
4-9 C 774026 774026 1 . GROUND STRAP
4-10 C 757845 757845 12 . SCREW, Pan Head Stainless Steel #6-32 UNC-2A x 1" long
4-11 C 763575 763575 70 . WASHER, Flat Stainless Steel #6
4-12 A 752641 752641 22 . NUT, Elastic Stop Steel, Pltd. #6-32 UNC-2B x 0.187" t
PC-777579
COMPUTER/RELAY UNIT
26
Figure 4
PC-777579
COMPUTER/RELAY UNIT
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FIG. & REPL. PART REF. NO.INDEX PLAN NO. NO. REQ’D. DESCRIPTION
Replacement Plan:A = 100% Replacement at every scheduled overhaul.B = Replacement dependent upon condition of part.C = Replace if damaged during repair, maintenance or overhaul.
4-
4-13 C 763578 763578 48 . LOCK WASHER Stainless Steel #6
4-14 C 772397 772397 4 . TERMINAL BLOCK
4-15 C 772526 772526 2 . MARKER STRIP
4-16 C 772527 772527 2 . MARKER STRIP
4-17 C 772398 772398 1 . TERMINAL BLOCK
4-18 C 772528 772528 1 . MARKER STRIP
4-19 C 772399 772399 1 . TERMINAL BLOCK
4-20 C 772529 772529 1 . MARKER STRIP
4-21 C 768572 768572 2 . RELAY
4-22 A 758062 MC-1345 4 . NUT, Elastic Stop Steel, Pltd. #10-14 UNC-3B x 0.187" t
4-23 C 772592 772592 1 . RAIL ASSEMBLY
4-24 C 772591 772591 2 . BRACKET W/STUD
4-25 C 763568 763568 10 . SCREW, Pan Head Stainless Steel #6-32 UNC-2A x 3/4" long
4-26 C 772499 772499 1 . SPACER
4-27 C 761577 761577 4 . RELAY
4-28 C 772235 772235 5 . SOCKET, Relay
PC-777579
COMPUTER/RELAY UNIT
28
Figure 4
PC-777579
COMPUTER/RELAY UNIT
29
FIG. & REPL. PART REF. NO.INDEX PLAN NO. NO. REQ’D. DESCRIPTION
Replacement Plan:A = 100% Replacement at every scheduled overhaul.B = Replacement dependent upon condition of part.C = Replace if damaged during repair, maintenance or overhaul.
4-
4-29 C 772456 772456 2 . GROMMET, Hole
4-30 C 772455 772455 1 . GROMMET, Hole
4-31 C 758866 ME-1134 1 . CLAMP, 3/8" Cable
4-32 C 775368 775368 7 . CABLE TIE
4-33 B 752464 LR-241 1 . SHRINK TUBING, 3/16" 2' long
4-34 C 757291 ME-781 2 . CLAMP, 7/16" Cable
4-35 B 754428 LR-685 1 . SHRINK TUBING, 1/8" 2' long
4-36 C 767851 767851 5 . RING TERMINAL, #8
4-37 C 763573 763573 3 . NUT, Hex Stainless Steel #8-32 UNC-2B x 0.125" t
4-38 C 763579 763579 3 . WASHER, Lock Stainless Steel #8
4-39 C 763576 763576 3 . WASHER, Flat Stainless Steel #8
4-40 C 742716 RC-65 46 . WIRE TIE
*4-41 B 764146 764146 1 . WIRE, Abrasion Resistant Teflon #18 AWG, 30' long
*4-42 B 772449 772449 1 . CABLE, 2 Cond., Shielded #18 AWG, 36.4' long
*4-43 B 767222 767222 1 . SHRINK TUBING, 1/4" 4' long
*Not shown in illustration.
PC-777579
COMPUTER/RELAY UNIT
30
Figure 4
PC-777579
COMPUTER/RELAY UNIT
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FIG. & REPL. PART REF. NO.INDEX PLAN NO. NO. REQ’D. DESCRIPTION
Replacement Plan:A = 100% Replacement at every scheduled overhaul.B = Replacement dependent upon condition of part.C = Replace if damaged during repair, maintenance or overhaul.
4-
*4-44 C 772489 772489 30 . RING TERMINAL, #6
*4-45 C 761924 761924 2 . RING TERMINAL
*4-46 C 759352 759352 4 . DISCONNET, Female, Insulated
*4-47 C 772714 772714 1 . SPACER
*Not shown in illustration.
PC-777579
COMPUTER/RELAY UNIT- Installation Data -
32
WIRE INTERFACE HOLES
HOLE INTERFACE HOLE INTERFACE
A PCU (MV) F CONTROL STANDB VCU (V2) G LOCO WIRINGC VCU (V1) H ICE CONNECTORD PCU (PT) I CONTROL STANDE PCU (AC) J BCCO PRESS SW
APPROXIMATENET WEIGHT
170 Lbs.
