Recordio 591 User manual

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MODIL 591
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GENERAL INFORMATION
Models 591 and 602 Recordio tape recorders feature push button operation, dual track,
dual speed recording and playback. Dual track recording gives two full-Iength recordings on
one. reel_of tape. Any size reel up to seven inches can be used. On Model 602, a tape timer
enables the operator to locate immediately any selection on a recorded tape. Tw6 neon record-
level indicators simplify the recording level setting.
New recordings can be made on a previously recorded tape because the erase head is
automatically positioned when the Record button is depressed, or the same recording may be
played back indefinitely. Recordings can be made from an external radio, television ieceiver,
or phonograph, in addition to those made directly from the microphone. Recordinge can be
played back through the seU-contained spealer or an external speaker or speakers Uy using ttre
output jack.
Models 591 and 602 have t\po tape speeds, 7 L/ 2 and 3 3/ 4 inches per second. When both
tracks of the tape are used, the recording times are as follows:
ReeI Size
5" (600 ft. )
?" (1200 ft. )
HOWARD W. SAttS &
The listing of any available replacement part herein does
not constitute in any case a recommendation, warranty or
guarantyby Howard W. Sams & Co., Inc., as to the quality
and suitability of such replacement part. The numbers oi
these parts have been compiled from informaHon furnished
to Howard W. Sams & Co. , Inc. , by the manufacturers of
cQ4l5
3 3/4Ips
I Hour
2 Hours
Indianapolis 6, Indiana.
DATE 7 - 60
7 L/ 2lps
I/ 2 llour
I Hour
Printed in U.S. of America
These Recordios operate on 60 cycles, lI? volts AC only. Before connecting to a line
supply, be absolutely certain it agrees with the foregoing specitications. The unit will be
severely damaged if connected to a direct current (DC) line.
Manufactured by:
Recordio Corporation
Charlotte, Michigan
G (o.r I N (D. lndianapoils €i, tndiana
the particular type of replacement part listed. Repro-
duction or use, without express permission, of editorial or
pictorial content, in any manner, ls prohibited. No patent
liability is assumed vith respect to the use of the lnforma-
tion contained herein. @ ISOO Howard W. Sams & Co. , Inc. ,
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F IG. I TO P V IEW OF MEC HAN I SM W ITH ESC UTC HEON REMOVED
O PERATING INSTRUCT IONS
Preparing For Operation
1. Remove the AC cord, reel of tape, empty reel,
andthe microphone from the case storage com-
partment.
2. Depress the Stop button.
3. Insert the AC cord into a convenient wall re-
ceptacle of the proper rating.
4. Set the Speed Change knob to 3. ?5 or 7.50,
as degired.
CAUT l0N: Do not turn Speed Change knob un-
less Stop button is depressed.
When the Forward or Rewlnd buttons are de-
preesed, the Record and Play buttons are locked so
that they cannot be pressed down, with the possibility
of spilling the tape. The buttons should always be
preased down firmly until they latch. Alwaya depress
the Stop button before changtng functlons or speeds.
Page 2
IMPORTANT: Always depress the stop button
when the recorder is not in use.
Threading The Tape
t. Place a reel of tape on the left reel pan (I5),
making certain the reel slots engage the pro-
trusions on the pan. Place an empty reel on the
right reel pan(8), again making certain the reel
slots engage the protrusions on the pan.
2. Unwind about 14 inches of tape frorn the supply
reel. HoId a sectlon taut and insert lt into the
tape slot, making certain the dull-coated side
faces the heads (rear of unit).
3. Insert the free end of the tape into one of the
three slots in the hub of the take-up reel. While
holding the end in place, turn the reel two or
three turns to secure the tape to the reel.

To Record From a Microphone
l. Turn the On-Off -Volume control tothe right and
allow about30 seconds forthe tubes towarm up.
2. Move the Record Lock lever downward vrith t}e
Ieft hand. This releases theRecord Safety lock,
which prevents accidental erasure.
3. Depress the Record button with the right hand
(while holding the Record Lock lever wittr ttre
Ieft hand) until it latches.
4. Adjust theVolume control until thenormal level
indicator just flashes while speaking into the
microphone. The overload indicator may flash
occasionally on peak passages. It should not
flash continualy, whlch indicates distortion.
5. The Tone control is automatically disconnected
whenthe unitis recording. When recording from
a radio, set the radio tone control for maximum
treble.
NOTE: To monitor the recording, place the
Monitor switch in the On position.
To Record From an External Radio, TV Receiver or
Phonograph
l. Insert the phonograph plug into ttre input jack.
2. For radio or TV recording, connect the patch
cord (Part No. C20.233) tothe voice-coil tirm-
inals of the radio or TV receiver speaker by
means of alligator clips. plug into the input
jack.
3. Proceed with recording as described under
'?To Record From Microphone".
N0TE: Remove patch cord after recording.
To Use Second Track
l. Depress the Stop button after all tape has been
wound onto the take-up reel.
2. Remove reel containing tape, and place on left
(supply) reel.
3. Place empty reel on right (take-up) pan.
4. Thread ttre tape and proceed with the recordlng
as prevlously described.
To Erase Tape
When the Record button is depressed, the erase
head is automatically positioned, erasing anyprevious
recording while a ne\[ one is being mide. - Material
no longerneeded can be erased, witrout recording, by
depressing the Record button and turning the Voirimil
Control knob to its mlnimum position. -One track is
erased ata time. To erase the second track, reverse
the reels and repeat the foregoing operation.
To Play Recordings
l. Thread tape asdescrlbed under ,'Threading The
Tape".
2. Set the Speed Change knob to the speed at which
the recording was made.
3. Depress the Play button until it latches.
4. Adjust the Volume and Tone controls to the de-
sired listening level.
N0TE: The Speaker Monitor switch must be in
t}te On position.
High-Speed Forward or Rewind
To play acertain portion of the tape over again,
itisnot necessarytorewind the entire reel. Depress-
lng the Forward or Rewind buttons will rapidly advance
or rewind the tape.
Several minutes of normal recording can be
skipped in a few seconds by using the Forward and
Rewind buttons-
Tape Timer
If you wish to play back a certain portion of a
recording while making a recording or playing back
atape on t}te Model 601, note the reading onthe Timer
Scale atthe time the particular reading is being made
or heard. Rewind the tape until the same number
appears on ttre scale. Depress the Stop button, and
then the PIay button.
When starting anew reel or rerecording a reel,
reset tlteindicator pointer to "O,'by rotating theResel
knob. By starting at "O" on aII tapes, you can catalog
the number location for each selection on any reel.
To Use Extension Speaker or Speakers
For better tone quality and power than the in-
ternal speakers canprovide, it issuggested that large
external speakers be plugged into the Exteraal Speaker
jacks.
The Recordio Model DS-899 ilual-extension
speaker set ennhles you to use two speakers, giving
more power and sound. Each speaker has a speaker
jack, so that onespeaker canbe plugged into t}leother.
Thus, both speakers are in operation for better sound
on straight playback or when the recorder is used for
public address systems. However, the recorder is
suitable for uge with any extension speakers of the
permanent--magnet type, provided they are matched
and have a 3 - 8-ohm voice coil.
To Use As a Public Address System
Touse the recorder asapublic address system,
plug an extension speake r or speake rs into the external
phoneinput jack anddepressthe record button. Adjuet
tfie tone and volume controlg to desired level. A re-
cording can be made at the same time by threading a
reel of tape onto the recotdio.
CAUT l0N: When using the recorder as a public
address system, mal<e sure the .micro-
phone is as far away as possible from the
speaker or speakers to prevent feed_back
squeal.
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F IG.2 BOTTOM V IEW OF MECHAN ISM
D I SASSEMBLY INSTRUCT IONS
To Remove Unit From Case ure.
l. Remove volume and rone control knobs. To Remove Amplif ier f rom Transport Mechanism
2. Remove two Phillips head screws from front 1. Disconnect the motor and power-transformer
escutcheon. leads from the amplifier chassis.
3. Remove two hex-head screws from front base 2. Remove the head leads.
plate. 3. Remove two slotted-head machine screws from
4. Remove two Phillips head screnrs from the rear each end of the amplifier chassis.
compartment. 4. Carefullylift theamplifier away fromthe trans-
5. Remove Philtips head screw holding AC cord to port mechanism, anddisconnect the play-record
cabinet. switch actuating llnk.
6. Lift unit out of case, removing speaker leads 5. To reassemble, reverse the foregoing proced-
from speaker before removing unit completely. ure.
7. To reassemble, reverse the foregoing proced-
ADJU STMENTS
PfeSSufe Pad Adjustment (Refer to Exploded Vie$r) z. Depress the play button. Do not turn the re-
l. Remove front eecutcheon (la). corder on'
Page 4

F IG.3 BOTTOM V IEW OF MEC HAN I SM W ITH D R IVE PLATE REI\MVED
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3. Using a pencil-type postal scale, check the
pressure needed to just pull the right pad away
from the play-record head. The test should be
made at the end of the pressure pad mounting
spring. If necessary, adjust locked adjustment
screw (50) until a reading ot L l/ 4 ounce + L/ 4
ounce is obtained.
4. Adjust guide post pressure pad (Ieft pad) by
bending pressure pad spring (49). It must be
adjusted for minimum pressure againstthe tape.
NOTE: After making the adjustment, depress
the Stop button, and replace the front
escutcheon.
Erase Head
1. With tape properly threaded, turn recorder on
and depress the Record button. Allow tape to
run for a few secondsl then turn recorder off,
but leave Record button depressed"
2. With timer escutcheon (7) and front escutcheon
(14) removed, check erase head (28) to see that
it is parallel with the tape.
3. Make surethe topedge of the tape coincideswith
the top end of the diagonal slot in the erasure
head(junction of long diagonal andshort vertical
slot). To adjust the level of the tape, loosen set
screw (24), and rotate tape gurde post (2b) to
move the tape up or down.
Brake Shoe
I. With all push buttons in the up position, brake
pads (81) should clear brake drums (123) and
(133) by approximately l,/ 8 inch.
2. Depress the Stop button while observing the
brake pads. Both brake pads must contact the
brake drums at the same time and with equal
pressure.
3. If necessary, adjust the pressure by bending
brake spring (80).
Head Alignment
Use standard 6- or 12- alignment tape for this
procedure.
Remove front and rear escutcheons. Clean pole
pieces of play-record head, using a good commercial
head cleaning agent, naptha or lighter fluid. Proceed
as follows:
t. Thread alignrnent tape on recorder and turn the
volume on fuII" Connect VTVM to external
speaker jack. $et meter for AC volts, 3-volt
range.
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Page 5

FIG.4 TOP VIEW OF DRIVE PLATE ASSEMBLY
2. Place unit inPIay position, 7 lrl 2 ips. Decrease
the volume until output is I volt on meter. Ro-
tate play-record head adtustment screw (33)
until maximum point of deflection is found.
Gently press tlre pressure pad at a point to the
extreme rlghtof theplay-record head. The out-
put should not increase. If it does, slightly
readjust the pressure pads. (See "Pressure
Pad Adjustment").
2. Place unit in Record position and set volume to
maximum.
Connect aVTVM thru lowcapacity probe across
Record head. Place meter selectoron ACvolts,
I00-volt range.
Adjust Cl8 fora reading of 85 volts. (Oscillator
frequency is approximately 60KC. )
Bias Adjustment
l. Set line voltage at II7 volts AC.
3.
4.
3.
l.
2.
3.
Most defects, other than wear or breakage, can
be traced to dirty surfaces. Play-Record head (35),
the capstan, and pinch roller (43) may accumulate tape
coating oxide, which is worn off the tape as it passes
these parts. This accumulation should beperiodlcally
removed because it will cause faint recording andpoor
playback. Wipe these surfaces carefully with a clean
cloth. If dirt is caked or hard and will not come off
with a dry cloth, dampen the cloth slightly wit}r alco-
hol.
CLEAN ING
LU BR ICAT ION
AII rotating parts have generous size Oilite
bearings, which arefactory lubricated. Under normal
use, no further lubrlcatlon is necessary. In heavy
duty service, the followtng parts should be lubrlcated
once a year with a drop of No. 20 motor o11.
Page 6
The top and bottom motor bearlngs.
The capstan bearlng.
Pinch roller (43) bearlng.

4. AU idler and drive wheel bearings. to them. Always wlpe excess lubrlcation from lubri-
cated parts.
5. The reel-splndle bearings. Occasionally remove foreign matter fromunder
The baslc rule ls - do not overlubricate. Oil the plastic push-button cover and place a drop of oil
must be kept off all rubber idlerg and belts, the fly- on the sliding lever members.
wheel rim, and off any parts that might transfer oil
TROUBtf CHART
Symptom Cause Remedy
Motor and amplifier dead. l. Power eupply defective. l. Checkvoltages perschematic.
2. Damaged power eord. 2. Repairorreplace power cord.
3. Defective On-Off switch. 3. Replace On-Off switch.
Does not record. l. Faulty microphone or cord. l. Replace if necessary after
checking recorder with an-
other type of input.
2. Faulty input jack. 2. Check input jack and replace
if necessary.
3. Faulty tube. 3. Check tubeg.
4. Open play-record head (35). 4. Replaceplay-recordhead(3b).
Noerase,oreraseisin.l.Eraseheadtensionspringl.c"'*"@f;
complete. (46) disconnected or broten. (46). - f!
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2. Erase head (28) not adjusted 2. See "Erase Eead Adjustment" g 3
orooerlv- under TTAD.TIISTMF:NTSir - =
properly. undeT "ADJUSTMENTS".
Flutter l. Dirty play-record head (35), l. Clean as described under
pressure pads, capstan shaft, 'TCLEANINGTT.
or pinch roller (43).
Wow. l. Brakereturar spring(?4)dis- l. Connectorreplacespring(?4). F
connected or broken. li
2. Oil or foreign matter on 2. Clean witha clothand alcohol.
drive surtaces.
Tape spills when Stop button l. Brakeshoeoutof adjustment. l. See I'Brake Sroe Adjustmentrt
is depressed during fast under "ADJUSTMENTST'.
forward or rewind. 2. Brake pads worn out or 2. Replace brake pads.
missing.
Nofastforwardor rewind. I. Idler lever tension spring 1. Connectorreplacespring(?g).
(79) disconnected or broken,
thereby not actuating idler
Iever (85).
2. Idler drive belt (I0I) broken 2. Replace idter drive belt (l0l).
or not properly connected.
Tape fails towind onto take- l. Reel drive spring (44) loose, l. Connect or replace reel drive
up reel during Play or Re- disconnected, or broken. spring (44).
cord. 2. ReeI pan sha.ft (8) binding. 2. Remove foreign matter from
bearing surfaces and shaftwith
clean cloth. Lubricate wit}
one drop of No. l0 motor oil.
No drive in PIay or Record. l. Idler tension spring (128) l. Connect or replace idler ten- b
disconnected or broken. sion spring (128). F
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F IG. 5A EXPLODED V IEW OF PA RTS A BOVE BA SEPLATE

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A PHOTOFACT'EXPLODED" VIEW
@Howard W. Srmr & Co., lnc. 1960
F IG . 5 B EXPLODED V IEW OF PA RTS BELOW BA SEPLATE
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Page 9

TROUBLE CHART (CON'T. )
Symptom Cause Remedy
2. Idler slide plate (106) binding
on idler slide bushing (10?),
thus preventing idler wheel
(135) from moving forward.
2. Check idler slide pfate (106)
and bushing (10?) for burrs.
Clean with alcohol.
Push buttons fail to latch into
position. l. Locking plate spring (58)
disconnected or broken. l. Connect or replace locking
piate spring (58).
Poor high - frequeney re-
sponse: Ilead not making proper
contact with tape.
Improper head alignment.
Faulty amplifier.
l. Clean the head.
Align head.
Use standard audio trouble
shooting procedures.
2.
3.
2.
3.
IIum Microphone near equipment
producing hum.
Microphone leads insuffi-
ciently shielded.
Move microphone away from
equipment.
Make sure Ieads are properly
shielded.
2.
2.
Tape scrapes against edge of
reeI. l. Reel warped.
guides out of adjust-
Replace reel.
Realign tape guides.
l.
2.
2. Tape
ment.
Distorted recordingl low
volume due to no recording
biae.
Faulty bias oscillator tube or
oscillator coil.
Faulty play-record head.
Check oscillator tube and os-
cillator coil.
Replace head.
l.
2.
2.
MECHANICAL PARTS LIST
2
3
4
5
6
7
l5
r6
T7
18
l9
20
2L
22
23
24
25
26
27
28
29
30
3l
32
I
I
10
c-13.253-?
c-13.253-9
73-2254-3
57-4C-624-5
5?-4C-405-5
B-32.302-2
73-2334-L
D-13.292-2
D-r3.280-5
c-r3.318-0
B-28. 163
c-13.254-r5
c-r3.254-14
5?-lC-618-1
B-35.851-l
B-19.975-2
Speed Shift Knob (Black)
(Model602)
Speed Shift Knob (Gray)
(Model 591)
FeItWasherS/4xU4I.D.
xL/ L6
Screw
*4-40 x b/16 O.H.M.S. Phil
SU. N. P. (Modet 602)
Timer Knob (Chrome) (Model
602)
#6 Cantlink Waeher
Timer Escutcheon (Siiver)
(Model602)
Timer Escutcheon (Brown)
(Model 591)
Nylon Reel Pan and Shaft
Ass'y. (RiSh0
Llnen Washer 3/ 8 x 7/ 32 x
.0I0 Black Varnished
Control Knob, 2 (Black)
(Model602)
Control Knob, 2 (Brown)
(Model 591)
#6-32x1/SPhtllips
B.It. M.S.
Timer Straft and Indicator
Aesry.
Rear Eecutcheon Plate
E-13.295-8
E-r3.295-?
c-r3.3r8-0
57-4C-610-5
B-19.156r
B-33.446
E-r}.424-2
E-13.424-L
57-3439-0
B-32.300
48-410-l
B-32.260
c-35. ?56-I
B-tg.1410-l
B-35. 1067-2
57-3439-0
B-32.282
Front Escutcheon (Silver)
(Model602)
Front Escutcheon (White)
(Model 59i)
Nylon ReeI Pan and Shaft
Ass'y. (Left)
Not used in These Models
Not used ln These Models
#6-32 x 5/ 8 Philhps O" H. M.
Screw
Spacer
IIex Nut
Spacer (2)
Baseplate (Gray llammertex)
(Model602)
Baseplate (brown llammertex)
(Model 591)
#6-32 x 3/16 Bristol Head
Set Screw
Tape Gulde Post (Left)
lf6-32 Hex Nut
Tape Guide Post Spacer
Erase Eead
Erase Head Plate
Pinch Roller and Record
Ilead Assry.
#6-32 x 3/16 Bristol Hd. Set
Screw
Tape Guide Post (Right)
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Page 10

MECHAN ICAL PARTS LIST (CON'T. I
I
Ref .
No.
33
34
35
5?-3r02-r
13-2231-L
8-36.249
8-36.25
?3-224r-148F
B-35. 1046-1
c -35. 835-r
B-31. 339
B-35. r0?0-l
B-3r.335
73.2248-35
B-28. 163
B-35. l05i-r
B-31.382
B-32.275
B-35. 859-2
5?-3439-0
B-31.333
B-33. lr8
'13-223L-4
57-lC-603-2
73-223t-4
57-tC-614-l
D-33.445
c-r9.83?
B-28.163
B-35.1066-t
B-28.181
B-28.163
B-32.288
5?-3589-l
B-35.1064-l
B-32.264
B-19.1431-l
B-32.291-l
B-31-327
B-35.1044-1
B-32.275-l
B-28.163
B-33.405
73-2254-6
B-33.40?-r
5?-lc-603-2
73-2231-4
B-19.961
c-35.816-l
c-35. 823-r
57-3589-l
B-19.9?6-l
73-223r-5
5?-6C-805-r
B-3r.324
5?-6C-805-1
#4-36 x V 4 R. H. M. S.
(Azimuth Adj. )
#4 Int. Lockwasher Stl. C. P.
Record-Playback llead M/ M
(Alt. for B-36.251 W/M)
Mon.
Record-Playback Head fl M
(Alt. for 8-36.248 M/ M)
Mon.
Record-Playback Head Brkt.
Ass'y.
Int. Tooth Lockwasher
#2-56 x 3/16 Hex Nut
#6-32 x 3/rO B.II. M.S.
Stat. Brz. (2)
#6 Int. Lockwasher (2)
rrE" Ring 3/ i6 Shaft
Linen Washer
Pinch Roller
Reel Drive Spring Belt
Linen Washer
Erase llead Tension Spring
Felt Pads (2)
#6-32 x 3/16 B.H.M.S.
Sta. Brz.
Pressure Pad Ass'y.
#6-32 x 3/ 8 R. H. M. S.
(Pressure Pad Adjust)
Pinch Roller Spring
Playback Actuating Lever
PlaybackSlide Plate Ass'y.
Record Actuating Lever
Ass'y.
Record Slide Plate
Push-on Stud Nut for 3/ 16
Stud
Flat Washer
Push Button (Black)
(Model602)
Push Button (Brown)
(Model Egr)
Push-Button Hinge Bracket
Pwh-Button Return Spring
Locking Plate Spring
Locklng Plate for Push
Button
Midget Jack Closed Circuit
3/ 8" Ig. Buehing (Ext.
Speaker)
Midget Jack Open Circuit 3/ 8lr
Ig. Bushing (Input)
Push-Button Lever
#6-32 x 5/16 Keps Hex Nut
Push-Button Retaining Brkt.
#6-32 x 3/16 PhilipsB.H.M.
#6 Int. Lockwaeher
Phillips Head Screw
Washer
Washer
Interlock Lever and Ilandle
Ass'y.
Interlock Lever and Handle
Ass'y. Return Spring
Record Interlock Ass'y.
Lockwasher 5/16 O.D. x . 144
#8-32 x 3/ I R.II. M.S.
Brake Return Spring
#10-32 Hex Nut (Elastic)
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77
?8
79
80
8l
82
83
u
84A
85
86
8?
88
89
90
91
92
93
94
95
96
9?
98
99
100
l0l
102
103
r04
r05
106
IO?
r08
r09
ll0
lu
rr2
u3
ll4
u5
ll6
ll?
u8
ll9
r20
l2l
122
123
n4
125
126
121
128
129
Flat Washer L/ 2 O.D. x .
I.D. xV32SU. C.P.
Shift Plate Ass'y.
Brake Slide Plate Assry.
Idler Lever Tension Spring
Brake Spring Ass'y.
Brake Pad FeIt
Lockwasher
Hex Nut
Flat Washer .425 O.D. x
.255 x .070 Phenolic
Linen Washer
Idler Lever Ass'y.
Spring Washer
#8-32 Hex Hd.Shoulder
Screw
Switch Lever Assry.
#6-32 x 3/16" Bristol Head
Set Screw
Switch Arm Link
Phono Jack
Spacer for Gear Train
#6 Int. Lockwasher
#6-32 x 3/16" B.H.M.S.
Phillips
#6 Int. Lockwasher
#6-32x?8"B.H.M.S.
Phillips
Gear Train for Tape Index
Motor Adaptor Plate
Linen Washer
Sheave Pulley Ass'y.
Idler Drive Belt
Llnen $'asher
rrErr llfurg 3/ 16" Shaft
Motor Pulley
#8-32 x lrl 4il Brlstol Hd.
Set Screw
Idler Sltde Plate Assry.
Idler Slide Bushing
Flat Washer, Steel
Idle Throw-out Lever
Shoulder Washer
Idler ldft Compression
Sub-Idler Plate Assry.
#8-32 Hex Hd. Stroulder
Screw
Linen Washer
Sub-Idler Wheel
Felt Washer
"E?t Fdngl 3/ 16" Shaft
"Ctt Washer
#6-32 x 5/16'! Phillips
B. H.M.S.
#6 Int. Lockwasher
Detent Spring
Speed Control Shaft Ass'y.
Brake Drum and Bushing
Ass'y.
#8-32 x lrl4" Bristol IId.
Set Screw
Drive Mountlng Plate Brkt.
#8 Int. Lockwasher
#8-32 x 5/ 16" Philllps
R.II. M.S.
Idler Tension Spring (2)
#6-32 x 5/16" Phillips
B.II. M. S.
36
3?
38
39
40
4L
42
43
44
45
46
47
48
49
50
5?-rc -603-2
73-2231-4
B-28.163
B-33.404
B-3r.35r
B-28. 163
B-31.361
B-3r.335
5?-lc-603-2
B-35. r04?-r
5?-16C-606-r
B-3r.360
B-ig.88r
B-35. i045-l
B-35.882
B-19.868
B-33.412
B-13.258-8
B-r3.258-2
B-19.859
B-3r. 33?
B-31.343
B-r9.8?0
B-33.529-2
B-33. 528-2
B-19.86?-r
48-22r9-l
B-19.858
57-lC-603-2
73-223L-4
B-35. ?75-l
B-3r.338
B-35. ??4-r
73-224L-154
5?-3445-r
B-31.338
48-2221
5l
52
52A
53
53A
54
55
56
57
57A
58
59
60
60A
6r
62
63
64
65
66
67
68
69
?0
7L
72
?3
74
15
Page ll

MECHANICAL PARTS LIST (CON'T.}
Ref.
No. Part
No. Description R€f.
No. Part
No. Description
130
r3l
Lg2
133
r34
135
r36
137
138
B-28.194
c-r3.257-L
57-3589-t
c-35.823-l
57-3589-t
B-33.408
73-2231-5
57-6C-805-t
B-19.862
Lord Shockmorurt (3)
Flywheel
#8-32 x L/ 4" Bristol Hd.
Set Screw
Brake Dnrm and Bushing
Assry"
#8-32 xL/ 4" Bristol IId.
Set Screw
Idler Wheel, 2 L/ 2" Dia.
#8 Int. Lockwasher
#8-32 x 5/ 16" Phillips
R.II" M. S.
Angle Bracket for Mounting
Drive Ass'y.
139
140
141
142
143
144
145
146
5?-6C-805-r
D-35.1054-2
B-33.41r
48-2221
D-36.153
D-36.241
B-19.887-l
c-I9. 1553
B-19.9?g-l
#8-32 x 5/ L6" Phillips
R. H. M. S.
Drive Mounting Plate Ass'y.
Flat Washet 3/ 4" O. D. x
g/ 16" I. D. x . 050 (3)
#10-32 Hex Nut (Elastic Stop
Nut)
Motor, Round Type, Fasco
Motor, Universal
Fan Blade (Fasco)
Fan Blade (Universal)
Speed Shift Lever
Counter Belt
6X4
@
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6AQ5
AMP CHASS IS-TOP V IEW
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