THIS DRAWING ANDALL DATA THEREINIS THE PROPERTY OFLETOURNEAU, INC.,.IT IS CONFIDENTIALAND MUST NOT BECOPIED. IT IS LOANEDSUBJECT TO RETURNUPON DEMAND AND ISNOT TO BE USED INANY WAY DETRIMENTALTO OUR INTEREST.
MACHINED CORNERS 1/64 X 45%%195WELD PROPERTIES SHALL MEET THEMINIMUM REQUIREMENTS OF THEBASE MATERIAL.
DIMENSIONS ARE IN INCHES & APPLYBEFORE PLATING OR FINISH COATINGS.TOLERANCES ON:
INTERPRET DIM & TOLPER LETOURNEAUSPEC 1650.00. EST WT SHEETSCALE
SIZEDWG NO.
REV
B
480V 315V 315V 175V
27V29V
85V
C-9 DC Motor
0 - 460V
0 - 90V
0 - 15V
18 - 24V
CTR1 [13]
RY1 = TACH OK(OVERSPEED GEN)
RY2 = TRANSISTOR OK(SPD/VOLT LIMITER)
Color for Training
Purposes Only
SPEED/VOLTAGE LIMITER
LIMITER FAILSAFE
-SCHEMATIC-
PCM-120AS
28VDC
RS3-[424]
RS3-[422]
RS3-[422]
D-6 DC MOTOR (VERTICAL)
C-9 DC GEN.
00 -RELEASE--RELEASE- JFM2-202-20NL98-622NL98-622 RAY BS
JFM3-9NL98-628NL98-62801 CHG'D CIRCUITRY AT LINE 301,302,303,307CHG'D CIRCUITRY AT LINE 301,302,303,307
308 THRU 317, 401 THRU 405; ADDED HOOK AND SWING308 THRU 317, 401 THRU 405; ADDED HOOK AND SWING
MOTOR SERIES FIELD REVERSING SWITCH DIAGRAMSMOTOR SERIES FIELD REVERSING SWITCH DIAGRAMS
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
TO
SHT
1
360
361
362
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
M2
43AS
43BS
43CS
SWING MG SET #5 AC MOTOR
SWING BRAKE
175TR
225FRCB5
L3S
L2S
L1S
+
-
POLARITY SENSITIVE SWITCH422,424
SR1 SR2
AC AC
RECT 5
TRANSF 9
C DR R
L
L
POLARITY SENSITIVE SWITCH(VOLTAGE POLARITY SENSE)
B
58S
58SG2
B D E 55S
55S
55S
50AS50S
51S
H
H I
I
300
12W
48S
49S
49AS
49BS
49S
198S
198AS 54S50
LIMIT SWITCH
OL3
EXC2
LS4
LS5
DC2
RS3 RS3
RS3
RS3
H2H1
X2 X4
PSS2
W2
TR2-SH FLD
GEAR BOX LIMITS WIREDN.O., HELD CLOSED
BRK3
UP
125TR
225FR
T1 T2 T3
OL1
M3
BOOMMOTOR
BOOMBRAKE
BRK2
CB3
48S
198S
19
8S
PSS1
LT
RT
1
2
3
4
50 225W
5
5
10100W
198S
198AS
- + 198BS
RS3
RS3-LT
RS3-RT
NC
NO
41R PSS1A
480V
18 - 24V
CTR4
RIGHT
LEFT
SWING POT
41S
42S
S3 [23]
CTR3 [24]
422,431,432
424,430,430
SEE NOTE 2
490
DOWN RS2 [25,29]
CTR4-[38]
4X4 EXCITER
+ -
A1A
24V
B110V
+ -
EC
B
ATD
TD1
S
1K 10W
30MFD/50VTD2
AUTOMATIC BRAKE SET MODULE
48AS
TO LINE
53
TO LINE
53
FU410A/600V
FU510A/600V
FU610A/600V
27
SWING AUTOMATIC BRAKE SET36
198S
AM2S
BM2S
CM2S
34
A-PH
B-PH
C-PH
AB
BB
CB
AM3
BM3
CM3
AS
BS
CS
AM2
BM2
CM2
AM3B BM3B CM3B
UP
58H
(MOTOR & GEN)
55H
GEN
41
42
W-GRID
UP
DOWN
(MOTOR)D
(MOTOR)B
(MOTOR)C
HOOK MOTOR SERIES FIELD REVERSING SWITCH
(4-LEAF) CONNECTIONS
TOP VIEW
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
58
S
(MO
TOR
&G
EN
)
55
SG
EN
W-G
RID
(MO
TOR)D
(MO
TOR)B
(MO
TOR)C
TOP VIEW
(4-LEAF) CONNECTIONS
SWING MOTOR SERIES FIELD REVERSING SWITCH
55H
10 OHM
41
S
42
S
10
OH
M
DOWN
26G 26R
UP42
LEFT
LEFT
RIG
HT
RIG
HT
RIG
HT
LEFT
DOWN
01
01
2 OF 2
24
22
03
52
4220352J.MARTIN
2-20-98 1/1 -
DRAWN
ISSUED
8 7 6 5 4 3 2 1
A
C
D
E
F
G
H
B
A
C
D
E
F
G
H
8 7 6 5 4 3 2 1
REVISIONS
ZONE REV DESCRIPTION ECN DATE CHG CHK APP
B
E DO NOT SCALE
EST WT SHEETSCALE
SIZE DWG NO. REV
30V
0 - 460V
0 - 90V
0 - 15V
Speed Voltage Limiter
Right Reactor 35
Turns No.12
Left Reactor 35
Turns No.12
199
200
83
43B
Right Reactor 1200
Turns No.20
Left Reactor 1200
Turns No.20
X1
X2
H1
H2
X1
H1
H2
X2
Right Reactor 760
Turns No.20
Left Reactor 760
Turns No.20
S1
S2
S1
L68
+
-
Zener
62v
50w
C
B
E
L67
L65
HI
LO
GAIN
1500
1W
500
B3
L92
A
L93
8
L85
L83
L82
L80
L81
55
58
15K
2K
4K
15K
B3
LO
HI
1K
2K
L7
L6
L5
L4
L3
L1
L2B3
43A
43B
B4L21
L22
L24
L23 L25
100
MFD
ZENER
30V
10W
1
12W
50
SPEED
27V
29V
2.7
9000 MFD480V
525V
+
+
-
-
-
+
B3 - 100V 1.5A Bridge
B4 - 100V 6A Bridge
HI
LO
VOLT
C
B
E
Limiter Fail Safe
RY
2
R
25K
RY
1
R
L92
L93
L65
L24
RY1 RY2
L21
L67
22MFD
35V
28V
Ry1
130
11W+VS
Limiter Supply Transformer
L1
L2
12HY
1.8K
20MFD
100V
470
130
11WRy2
Ry1 Ry2
N.O. N.O.
2.7K
1K
10K
In Fail Safe Package
Reactors
1
Tac
hG
ene
rato
r
120v Supply To Fail Safe Contact
12W
L25
BH
L23
28V
28V
L22
AH
PCM 120-AS CRANE ELECTRICAL CHECKOUTHOOK (M/G SET P/N 087-4566)
MAIN & M/G SWS.
BRAKE SWITCH
POT. COMMAND HOOK LOAD
PART DESIGNATION TEST POINT WIRE CODES
RES. OHMS
VOLTS FROM TO AC/DC
AMPS (2)(3) HP
ON SET NEUTRAL IDLE AC MOTOR, #5 L1H-L2H-L3H 480 AC 41ON RELEASED 100% "UP" 50% RATED AC 110 85.3ON RELEASED 70% "UP" 100% RATED AC 165 118.7ON SET NEUTRAL IDLE POT SUPPLY 202-203 22 DC
OPERATOR POTON RELEASED 100% "UP" NO LOAD OUTPUT 48H-49H 15 - 18 DC
4x4 EXCITEROFF GEN. END FLD. 48H-49H 4.3ON RELEASED 100% "UP" NO LOAD ARMATURE 50H-51H 90 - 105 DC
MTR. END FLD.OFF DIMINISH 26POS-26NEG 275.0ON SET NEUTRAL IDLE " 26POS-26NEG 295 DCOFF CONSTANT 197(198H-198AH) 62.0ON SET ANY NO LOAD " 198H-198AH 28 -30 DCON SET NEUTRAL ARMATURE 44-45 140 - 145 DCON RELEASED 100% "UP" NO LOAD " 44-45 35 - 45 DC
TACH GEN.ON SET NEUTRAL FIELD 198AH-RES 1200.0 10 DCON RELEASED 100% "DN" NO LOAD ARMATURE L92-L93 376.0 16 - 18 DC
DC GENERATOR, C-9OFF FLD. (SHUNT) I-H(50AH-51H) 13.0ON REL. (1) 100% OPEN CIRCUIT ARMATURE 55-58 450 - 480 DC
DC MOTOR, C-9OFF FLD. (SHUNT) I-H(44-45) 13.0ON RELEASED 100% "UP" 50% RATED ARMATURE 55-58 400 - 450 DC 140 75
ON RELEASED 70% "UP" 100% RATED " 55-58 400 - 430 DC 200 91
ALWAYS MEASURE RESISTANCES (COLD) WITH ALL POWER "OFF"! CIRCUIT MUST BE DISCONNECTED.
(1) COIL WIRE "11A" DISCONNECTED FROM BRAKE TACKER SO MOTOR BRAKE REMAINS "SET".
(2) HIGHER CURRENTS FOR 100% RATED LOAD ARE "SHORT-TIME" - INTERMITTENT DUTY.
(3) CURRENTS ARE APPROXIMATE OR CALCULATED.
OPERATOR FUNCTION ONE LINE DIAGRAM DWG. 216-6332-02 PCM 120-AS CRANE CHECK (P/N 208-3056)
Page 1 of 2
PCM 120-AS CRANE ELECTRICAL CHECKOUTSWING (M/G SET P/N 087-4566)
MAIN & M/G SWS.
BRAKE SWITCH
POT. COMMAND
HOOK LOAD
PART DESIGNATION TEST POINT WIRE CODES
RES. OHMS
VOLTS FROM TO AC/DC
AMPS (2) HP
ON SET NEUTRAL IDLE AC MOTOR, #5 L1S-L2S-L3S 480 AC 41ON RELEASED 100% "UP" RATED AC 83 28.4
ON SET NEUTRAL POT SUPPLY 198S-198AS 28 - 30 DCOPERATOR POT
ON RELEASED 100% NO LOAD OUTPUT 48S-49S 10 - 12 DC
4x4 EXCITEROFF GEN. END FLD. 48S-A9AS 4.3ON RELEASED 100% NO LOAD ARMATURE 50S-51S 45 - 50 DC
MTR. END FLD.OFF DIMINISH NOT USED 275.0OFF CONSTANT NOT USED 62.0
DC GENERATOR, C-9OFF FLD. (SHUNT) I-H(50AS-51S) 13.0ON REL. (1) 100% OPEN CIRCUIT ARMATURE 55S-58S 450 DC
DC MOTOR, D-6OFF FLD. (SHUNT) I-H(198S-198AS) 4.0ON SET ANY 198S-198AS 28 - 30 DCON RELEASED 100% RATED ARMATURE 55-58 400 - 450 DC 50 29
"
ALWAYS MEASURE RESISTANCES (COLD) WITH ALL POWER "OFF"! CIRCUIT MUST BE DISCONNECTED.(1) COIL WIRE "11S" DISCONNECTED FROM BRAKE TACKER SO MOTOR BRAKE REMAINS "SET".
(2) M/G SET IS THE SAME AS HOOK. SWING POWER REQUIREMENTS ARE LESS THAN HOOK.
OPERATOR FUNCTION ONE-LINE DIAGRAM DWG. 216-6332-02
Page 2 of 2
LeTourneau Inc.
Control Panel
Swing Pot#448
Hook BrakeRelease
#13
AC Main Switch
#10
MG SetSwing
#32
MG SetHook
#10
All StopEmergency
#39
Boom Control Switch #23
Hook Pot#152
Swing BrakeRelease
#36
Return
LeTourneau Inc.
Automatic Brake Set Module
Time DelayBrake Set/Release
Transformer110v to 24v
Transformer Supply Fuses
Brake SetCard
#58
Return
LeTourneau Inc.
Limiter Fail Safe PanelRY1 Light #108
RY2 Light #110
Fail Safe Limiter#110
Fail Safe Switch#135
50MFD Capacitors#133
50ohm Resistor
Return
LeTourneau Inc.
Speed / Voltage Limiter
Speed Adj.#118
Volt Adj.#119
Gain Adj.#121
#118
Return
LeTourneau Inc.
Left / Right Reactor
Right Saturable Reactor#108
Left Saturable Reactor#108
Return
LeTourneau Inc.
Brake & Power Switches
Hook MotorBrake (CTR1)#13/228/229/230
Hook PowerSwitch (CTR2)#17/142/217/218
Return
LeTourneau Inc.
Silicon Rectifier Bridge
Hook PotRectifier Supply
24v#112
Constant FieldSupply 24v
#238
Return
LeTourneau Inc.
TransformersLimiter Supply Transformer 480v x 28v
#108
Motor Field Series TransformerDetermined by Reactors
#108
Motor Field Transformer 480v x 300v#221
24v Transformer 480v x 28v#235
Return
LeTourneau Inc.
Selenium Rectifiers
Series Field RectifierWires 81 / 82
#112
Motor Field RectifierWires 204 / 205
#221
Return
LeTourneau Inc.
Polarity SensorSet Max Open Circuit Voltage
#155/452
Polarity Sensor Switch Resistor#241/420
Series Transformer Load#110
Arc Suppressor Module#242/247#421/426
Polarity Sensitive Switch#241/420
Return
LeTourneau Inc.
“W” Grid
Protects Points of4 Leaf Series Field
Switch#131
Return
LeTourneau Inc.
Diode Reducer
Reduces Number of SeriesField Windings Used During
