U. S. WAii DSPT. TECHNICAL MANUAL 3-6X3 
CASS. B®EOPEsmNG, no volt, ac-dg item 
3073003 ' Trm © f^fi^ 
LiiltrW 
WAR DEPARTMENT TECHNICAL MANUAL 
CASE, BONE OPERATING, 
110 VOLT, AC-DG 
(ITEM 3073008) 
WAR DEPARTMENT • 8 September 1944 WAR DEPARTMENT TECHNICAL MANUAL 
TM 8-61 3 
CASE, BONE OPERATING, 
110 VOLT, AC-DC 
(ITEM 3073008) 
WAR DEPARTMENT 
8 September 1944 
United States Government Printing Office 
Washington : 1944 WAR DEPARTMENT, 
Washington 25, D. C., 8 September 1944i 
TM 8-613, Case, Bone Operating, 110 Volt, AC-DC (Item 3073008), 
is published for the information and guidance of all concerned. 
[A. G. 300.7 (28 Jun 44). ] 
By order of the Secretary of War: 
G. C. MARSHALL, 
Chief of Staff. 
Official: 
J. A. ULIO, 
Major General, 
The Adjutant General, 
Distribution : 
As prescribed in paragraph 9a, FM 21-6 except ROTC (0); Named 
Gen Hosp (2) T/O 8-550; Numbered Gen Hosp (2) T/O 8-550; 
Sta Hosp, 750 bed (2) T/O 8-560; Med Dep Co (2) T/O 8-667; 
Med Base Dep Co (2) T/O 8-187; Med Tech Sch (2). 
For explanation of symbols, see FM 21-6, CONTENTS 
CHAPTER INTRODUCTION. 
Para- 
Section I. General. SraPh PaSe 
Scope 1 i 
Records 2 1 
II. Description and data. 
Description 3 1 
Data 4 \ 
III. Tools. 
First echelon tools 5 1 
CHAPTER 2. OPERATING INSTRUCTIONS. 
Section IV. General. 
Scope 6 9 
V. Service upon receipt of equipment. 
New equipment 7 9 
Used equipment 8 10 
VI. Controls and instruments. 
Controls 9 10 
Instruments 10 11 
VII. Operating under usual conditions. 
General 11 11 
CHAPTER 3. MAINTENANCE INSTRUCTIONS. 
Section VIII. General. 
Scope 12 12 
IX. Special organizational tools and equipment. 
Tools issued with equipment 13 12 
Tools for maintenance personnel only 14 12 
X. Lubrication. 
After each operation 15 12 
Monthly 16 12 
XI. Preventive maintenance services. 
After each operation 17 12 
Monthly 18 13 
XII. Trouble shooting. 
General 19 13 
Replacing circular saws 20 13 
Foot switch assembly, 3R00150 21 13 
Reciprocating attachment assembly, 3R00156 22 13 
Telescopic attachment assembly, 3R00152 23 13 
Longitudinal attachment assembly, 3R00154 24 13 
Replacing idler gears, 3R00058 25 14 
Sharpening of chisels 26 14 
APPENDIX I. STORAGE AND SHIPMENT 16 
II. LIST OF PARTS 17 Figure 1. Case, Bone Operating, shown with all assemblies anti accessories in their proper places. 
1. SR00173—Drill, Twisty-Inch, Carbon Steel. 
SROOl74—Drill, Twist,>£-lnch, Carbon Steel. 
SR00175—Drill, Twisty-Inch, Carbon Steel. 
SR00176—Drill, Twisty-Inch, Carbon Steel. 
2. SROOl77—Saw, Circular, Carbon Steel, .012 Inch 
Thick, 1H Inch O.D. Inch I.D. 
3. 3R00080—Motor, Complete. 
4. 3R00152—Attachment, Telescopic, Complete. 
5. 3R00156—Attachment, Reciprocating, Complete. 
6. 3R00106—Body, Telescopic. 
7. 3R00108—Section, “A”, Telescopic Attachment, Alu- 
minum. 
3R00110—Nut, “A" Thumb, Telescopic Attachment. 
3R00112—Section, “B ”, Telescopic Attachment. 
3R00114—Nut, “B” Thumb, Telescopic Attachment. 
3R00116—Section, “C”, Telescopic Attachment. 
3R00118—Nut, “C” Thumb, Telescopic Attachment. 
3R00120—Section, “D”, Telescopic Attachment. 
3R00122—Nut, “D” Thumb. Telescopic Attachment. 
8. 3R00090—Handle, Longitudinal Attachment. 
9. 3R00154—Attachment, Longitudinal, Complete. 
10. 3R00142-Plug, Male. 
11. 3R00004—Adapter, Driver. 
12. 3 R00010—Burr, Slotting, Size 1. 
3R00012—Burr, Slotting, Size 2. 
13. 3R00016—Burr, Curetting, No. 4. 
3R00020—Burr, Curetting, No. 6. 
14. 3R00150—Switch, Foot. 
iv CHAPTER 1 
INTRODUCTION 
Section I. GENERAL 
1. SCOPE, a. These instructions are published for the information and 
guidance of the personnel to whom this equipment is assigned. They con- 
tain information on the operation and first and second echelon mainte- 
nance of the equipment as well as descriptions of the major units and their 
functions in relation to the other components of the equipment. They 
apply to the Case, bone operating, 110 volt, AC-DC, Medical Department 
item No. 3073008, only. 
b. Appendix II lists parts of the bone operating case. Those parts on 
the list keyed with an asterisk are regularly stocked by medical supply 
depots as spare parts for this equipment. Those parts not keyed with an 
asterisk are available through special purchase only. 
2. RECORDS. No standard maintenance forms are suggested for use with 
this equipment. 
Section II. DESCRIPTION AND DATA 
3. DESCRIPTION, a. General information. This equipment is a standard 
type portable bone operating equipment conveniently packed, together 
with its accessories, in a portable carrying case. 
b. Manufacturer. Zimmer Manufacturing Company, Warsaw, Indiana. 
4. DATA. a. Performance. The motor rotates at a speed of 13,000 r.p.m., 
at the small end, with a ratio of 6 to 1 at the large end. 
b. Electrical power necessary. 110-volt, 60-cycle alternating current or 
110-volt, 60-cycle direct current. 
Section III. TOOLS 
5. FIRST ECHELON TOOLS. The following tools are shipped with the bone 
operating case. 
a. WRENCH, Setscrew, Bristo No. 8: SR00193 (figs. 5 and 7). 
b. WRENCH, Setscrew, Bristo, M Inch; SR00201. 
c. WRENCH, Open end, % Inch: Special. 3R00144 (fig. 7). 
1 Figure 2. The motor assembly showing all subassemblies and their parts 
1. 3 R00078—Armature, Complete. 
2. 3R00058—Gear, Idler. 
3. 3R00072—Holder, Bearing. 
4. SR00202—Pin, 10 FI.H. 
5. SR00185—Nut, 8 X 32, Hex, Brass. 
6. 3R00076—Bushing, Motor, Small. 
7. 3R00162—Spring, Adjustment. 
8. SR00184—Screw, 8-32 X 4 Inch, R.H.M. 
9. 3R00062—Field, Magnetic. 
10. 3R00074—Bushing, Motor, Large. 
11. 3R00146—Motor, Electric, Complete 
12. 3R00056—Cap, Case, Fast, End. 
13. 3R00008—Casting, Fast End. 
14. 3R00038—Assembly, Slow End, Complete. 
15. 3R00158—Cap, Nose, Slow End. 
18. 3R00B06—Key, Jacob’s Chuck. 
17. 3R00142-Plug, Male. 
18. SR00190—Screw, 6 X3g-lnch, Self Tapping, O.H., 
S.S. 
19. SR00188—Washer, % Inch O.D. Xs g Inch I.D. X>f6 
Inch Thick, Felt. Figure 3. Cross section oj the motor assembly showing all parts 
1. 3R00158—Cap, Nose, Slow End. 
2. 3R00038—Assembly, Slow End, Complete. 
3. 3R00058—Gear, Idler. 
4. SR000200—Washer,% Inch Xy2 Inch X .010 Inch, 
Brass. 
5. SR00186—Setscrew, 10-24 X>f6 Inch, Allen, Cup Pt., 
5.5. 
6. 3R00074—Bushing, Motor, Large. 
7. SR00189—Tubing, Insulation, Spaghetti, 3mm. 
8. 3R00142—Plug. Male. 
9. SR00190-Screw, 6 X34-lnch, Sell Tapping, O.H.M. 
5.5. 
10. 3R00076—Bushing, Motor, Small. 
11. SR00179-Screw, 4 Sheet Metal, FI.H. 
12. SR00185-Nut, 8X32, Hex, Brass. 
13. SR00181—Screw, 2 X V-Inch, Sheet Metal, R.H. 
14. SR00184-Screw, 8-32 X 4-Inch, R.H.M. 
15. 3R00070—Spring, Brush. 
IB. 3R00008—Casting, Fast End. 
17. 3R00056—Cap, Case, Fast End. 
18. 3R00162—Spring, Adjustment. 
19. 3R00068—Holder, Brush. 
20. 3R00066—Brush, Carbon. 
21. SR00178-Screw, 4- Sheet Metal, B.H. 
22. SR00180—Terminal, .016 Ga., Hole.% Inch 
O.D., Copper. 
23. SR00182-Screw, 6-32 R.H.M., Brass. 
24. 3R0C064—Ring, Holder, Brush. 
25. SR00183—Nut, 6 X 32, Square, Brass. 
26. 3R00062—Field, Magnetic. 
27. 3R00078—Armature, Complete. 
28. 3R00072—Holder, Bearing. 
29. SR00188—Washer, % Inch O.D. X^i Inch I.D. V/K 
Inch Thick, Felt. 
30. SR00202—Pin, 10- FI.H. 
3 3R00054—Chisel. Bone, Flat,%-lnch. 4. 3R00048—Saw, Straight, Narrow, Short. 6. 3R00042—Saw, Straight, Wide, Long. 
3R00052—Chisel, Bone, 5. 3R00044-Saw, Straight, Wide, Short. 7. 3R00046-Saw, Straight, Narrow, Long. 
3R00050—Chisel, Bone, Curved,j^-lnoh. 
Figure 4. The reciprocating attachment assembly showing parts, chisels and saws. 
4 Figure 5. The reciprocating attachment assembly showing all parts 
1. SR00193—Wrench, Setscrew, Bristo, No. 8. 
2. 3R00004—Adapter, Driver. 
3. SR00197—Setscrew, 8-32 V/8 Inch, Bristo, Cup Ft., 
S.S. 
4. SR00205—Screw, 2-56 Xy8 Inch. FI.H.M. 
5. 3R00130—Chuck, Reciprocating Attachment, Com- 
plete. 
6. 3R00128—Nose, Reciprocating Attachment. 
7. 3R00124—Casing, Outer, Reciprocating Attachment. 
8. 3R00126—Shaft, Reciprocating Attachment. 
9. 3R00132—Sleeve, Rotating. Reciprocating Attach 
ment 
10. 3R00134—Bushing, Square Holed, Reciprocating At- 
tachment. 
11. 3R00136—Bushing, Reciprocating Attachment. 
12. 3R00138—Cam, Reciprocating Attachment. 
13. SR00187—Spacer, Bearing, >f6 Inch 0.0. X% Inch 
I.D. Xj/)fi Inch Thick. 
14. SR00192—Bearing, Thrust, J{6 Inch 0.0. X% Inch 
I.D. inch Thick, Brass, Steel Ball. 
15. 3R00140—Sleeve, Reciprocating Attachment, Bronze. 
5 Figure 6. The longitudinal attachment assembly 
1. 3R00090—Handle, Longitudinal Attachment. 
2. 3R00092—Ferrule, Handle, Longitudinal Attachment. 
3. 3R00004—Adapter, Driver. 
4. SR00194—Saw, Circular, Carbon Steel, .015 Inch Thick, 
2 Inch O.D. X% Inch I.D. 
5. 3R00164—Nut, Spindle, Large Saw. 
6 Figure 7, The longitudinal attachment, showing all parts and the circular saws. 
1. 3R00164—Nut, Spindle, Large Saw. 
2. 3R00102—Spindle, Saw, Longitudinal Attachment. 
3. SR00193—Wrench, Setscrew, Bristo, No. 8. 
4. SR00196—Screw, 6-32 XKe Inch, R.H.M., Brass. 
5. 3R00094—Spindle, Longitudinal Attachment, Short. 
6. 3R00088—Casting, Longitudinal, Aluminum. 
7. 3R00090—Handle, Longitudinal Attachment. 
8. 3R00092— Ferrule, Handle, Longitudinal Attachment. 
9. 3R00100—Bearing, Longitudinal Attachment, End. 
10. 3 R00098—Spindle, Longitudinal Attachment. 
11. SR00197—Setscrew, 8-32 Inch, Bristo, Cup PL, 
S.S. 
12. 3R00144—Wrench, Open Special. 
13. 3R00104—Washer, Drive, Longitudinal Attachment. 
14. SR00194—Saw, Circular, Carbon Steel, .015 Inch 
Thick. 2 Inch O.D. X){6 Inch I.D. 
7 4. SR00073—CORD, NEOPRENE, NO. 16, TWO CONDUCTOR. 
5. SR00026—PLUG, MALE. SMALL, TWO-PRONG. 
Figure 8. 7 he foot switch assembly with cords. 
1. SR00191—PLUG, MALE, TWIST LOCK, HUBBELL XT 7465. 
2. 3R00150—SWITCH, FOOT. 
3. SR00195—PLUG, FEMALE, TWIST LOCK, HUBBELL 7464. CHAPTER 2 
OPERATING INSTRUCTIONS 
Section IV. GENERAL 
6. SCOPE. Chapter 2 contains information for the guidance of the per- 
sonnel responsible for the operation of this equipment. 
Section V. SERVICE UPON RECEIPT OF EQUIPMENT 
7. NEW EQUIPMENT, a. Unpacking. To unpack the bone operating case, 
proceed as follows: 
(1) Open the shipping box carefully. 
(2) Remove paper packing so as to uncover the bone operating case. 
(3) Lift case from the shipping box. 
(4) Open case and remove parts necessary for operation. 
b. Sterilizing. (1) Place motor assembly, line cord, and all attachments 
and accessories necessary for the operation in the sterilizing chamber of 
an autoclave and proceed to sterilize according to the technique directed 
by the medical officer in charge. 
(2) After sterilizing, the motor assembly should be allowed to cool for 
several hours in the open air before using. 
Caution: This equipment must not be sterilized in boiling liquids or cooled 
by water immersion. 
c. Assembling. Attach line cord to equipment and plug into source of 
current. Attach accessories necessary for the operation as outlined in d to 
h below. 
d. Attaching reciprocating attachment, 3R00156 (figs. 1 and 4). (1) 
Unscrew the slow end nose cap, 3R00158 (fig. 2). 
(2) Using the key provided, 3R00006 (fig. 2), loosen Jacob’s chuck 
enough to allow the driver adapter, 3R00004 (figs. 1 and 6), to slide loosely 
into the chuck. 
(3) Insert the small end of adapter into chuck. 
(4) Using key, tighten the chuck securely. 
(5) Screw on the reciprocating attachment. Care must be used to pre- 
vent stripping of threads. 
(6) Attach saws or chisels to reciprocating attachment, screw chuck, 
3R00130 (fig. 5), on as far as possible, loosen one notch, and insert saw 
or chisel and tighten. 
9 e. Attaching telescopic attachment, 3R00152 (fig. 1). (1) Unscrew the 
slow end nose cap, 3R00158 (fig. 2). 
(2) Screw on telescopic attachment. 
(3) Insert selected Kirschner wire through attachment into Jacob’s 
chuck. 
(4) Tighten chuck securely through hole in telescopic body, 3R00106 
(fig. 1), with key provided. 
f. Attaching longitudinal attachment, 3R00154 (figs. 1 and 6). Use 
the same procedure outlined for the reciprocating attachment (paragraph 
7d). To adjust the width of the circular saws, slide outer saw in or out 
and lock with the Bristo setscrew in the hub of the saw. 
g. Attaching foot switch assembly, 3R00150, and electrical connec- 
tions. (figs. 1 and 8). (1) Insert male twist-lock plug, SR00191 (fig. 8), 
into female twist lock plug, SR00195, connected to the foot switch. 
(2) Connect other female twist lock plug to the motor assembly. 
(3) Turn all twist lock connections slightly to the right to lock them. 
h. Attaching slotting burrs (fig. 1). (1) Unscrew fast end nose cap, 
3R00056 (figs. 2 and 3). 
(2) Insert burr into end of spindle. 
(3) Give burr a half turn to make certain it is seated properly. 
(4) Replace fast end nose cap to prevent burr slipping out. 
i. Sires of attachments. Drills, curetting burrs and wires from JJ inch 
to the smallest wire size may be held securely in the Jacob’s chuck. 
8. USED EQUIPMENT, a. Before sterilizing the bone operating case, con- 
nect the equipment to the source power and check by depressing the 
foot switch to make sure that the motor operates when the foot switch is 
depressed. See paragraph 9. A visual inspection is sufficient. 
b. It is suggested that a check be made of the accessories received 
against the list of parts in appendix II. Any missing accessories or acces- 
sories which the medical officer in charge deems to be unusable should 
be requisitioned immediately. 
c. With the exception of the procedure as outlined in a and b above, 
proceed as for new equipment. See paragraph 7. 
Section VI. CONTROLS AND INSTRUMENTS 
9. CONTROLS—FOOT SWITCH. The foot switch serves as an on-and-off 
switch and as a means of regulating the speed of the motor. When the 
pedal is not depressed, the equipment is in the off position. The motor 
rotates at higher speeds as the foot pedal is depressed until it reaches 
maximum speed when the foot pedal is depressed to its greatest extent. 
10 10. INSTRUMENTS. No instruments of any kind are used on this equip- 
ment. 
Section VII. OPERATING UNDER USUAL CONDITIONS 
11. GENERAL. The technique of operation of the bone operating case is 
the responsibility of the medical officer in charge. The following general 
recommendations are made by the manufacturer of the equipment: 
a. When using the slotting burr technique, it is suggested that the 
operator keep the foot pedal fully depressed to maintain the maximum 
speed necessary for satisfactory performance. 
b. It is advisable when cutting hard bone with a saw or burr to play 
a normal solution of salt water on the bone to prevent burning. 
11 CHAPTER 3 
MAINTENANCE INSTRUCTIONS 
Section VIII. GENERAL 
12. SCOPE. Chapter 3 contains information for the guidance of the per- 
sonnel of the using organizations responsible for the maintenance (first 
and second echelon) of this equipment. 
Section IX. SPECIAL ORGANIZATIONAL TOOLS AND EQUIPMENT 
13. TOOLS ISSUED WITH EQUIPMENT, a. WRENCH, Setscrew, Bristo No. 
8: SR00193 (figs. 5 and 7). 
b. WRENCH, Setscrew, Bristo, }<t-Inch: SR00201. 
c. WRENCH, Open End, Y%-Inch: Special. 3R00144 (fig. 7). 
14. TOOLS FOR MAINTENANCE PERSONNEL ONLY. a. WRENCH, 
Setscrew, Allen No. 8: SR00364. 
b. WRENCH, Setscrew, Allen No. 10: SR01727. 
c. WRENCH, Single-endv Engineer, Adjustable, 6-Inch Length: 
SR01841. 
d. SCREW DRIVER, }4-Inch Shank, 6-Inch Blade Length: SR01593. 
e. SCREW DRIVER, %-Inch Shank, 3-Inch Blade Length: SR01584. 
f. HAMMER, Ball Peen, 8 Oz.: SR01367. 
Section X. LUBRICATION 
15. AFTER EACH OPERATION. Coat all attachments and accessories 
with special preservative lubricating OIL (PS). 
16. MONTHLY. Lightly oil Jacob’s chuck and attachment assemblies with 
special preservative lubricating OIL (PS). 
Section XI. PREVENTIVE MAINTENANCE SERVICES 
17. AFTER EACH OPERATION. After each operation all attachments and 
accessories should be washed thoroughly with soap and hot water followed 
by a rinse with clear water, completely drying and being coated with 
special preservative lubricating OIL (PS) and properly placed in the 
carrying container. This procedure prevents rusting of the accessories. 
12 18. MONTHLY, a. Oil the Jacob’s chuck and attachment assemblies lightly 
with special preservative lubricating OIL (PS). 
b. Tighten all accessible screws. 
Section XII. TROUBLE SHOOTING 
19. GENERAL. The following trouble shooting procedures can be used by 
either the operator or the using organization. The first and second echelon 
of maintenance should not disassemble the motor assembly even for lubri- 
cation purposes. However, since the idler gears are particularly vulnerable, 
this section includes replacing those gears but this procedure is recom- 
mended as a second echelon emergency repair only. 
20. REPLACING CIRCULAR SAWS. All circular saws rotate in the same 
direction; therefore, when replacing a saw, it must be installed in the same 
position as the old one. If a saw is placed on the spindle backwards, it 
will not cut properly and the teeth will rapidly become dull. 
21. FOOT SWITCH ASSEMBLY, 3R00150 (figs.l and 8). The repair of short 
circuits and loose connections are the only repairs which should be attempt- 
ed on the foot switch. 
22. RECIPROCATING ATTACHMENT ASSEMBLY, 3R00156 (figs. 1 and 4). 
a. Using a No. 8 Allen wrench, unscrew the two assembly setscrews, 
SR00204. 
b. Place a wrench on the square shaft, 3R00126 (fig. 5), just 
above the nose, 3R00128, and turn counterclockwise until the threads on 
the nose disengage. 
c. Hold the outer casing, 3R00124, and pull out on the chuck, 3R00130. 
d. Unscrew the two bronze sleeve screws, SR00205, and pull again, 
holding the chuck and the bronze sleeve, 3R00140. 
e. Unscrew the four rotating sleeve screws, SR00205, and pull the 
square shaft from the rotating sleeve, 3R00132. This will give access to 
all parts. 
f. Replace worn or broken parts, pack with No. 2 general purpose 
grease (WB) recommended for motor assembly and reassemble. 
23. TELESCOPIC ATTACHMENT ASSEMBLY, 3R00152(fig. l).When any 
section of the telescopic attachment begins to operate too freely, the ten- 
sion maybe restored promptly by expanding the base of the failing section. 
To do this, use a small screw driver. Any section may be removed by un- 
screwing the thumbnut to that section. 
24. LONGITUDINAL ATTACHMENT ASSEMBLY, 3R00154 (figs. 1 and 6). 
a. Unscrew the saw spindle setscrew, SR00197 (fig. 7), with the No. 8 
Bristo wrench, SR00193, and remove outside saw and spindle. 
13 b. Using the wrench issued with equipment, 3R00144, unscrew the cir- 
cular saw nut, SR00199. 
c. Remove the saw and the saw drive washer, 3R00104. 
d. Using a medium screw driver, pry off the handle ferrule, 3R00092. 
e. Remove the two round head machine screws, SR00196. 
f. Take apart the two sides of the casting. This exposes all parts. 
g. Replace worn or broken parts, pack with No. 2 general purpose 
grease (WB) recommended for motor assembly (paragraph 25h), and 
reassemble. 
25. REPLACING IDLER GEARS, 3R00058 (figs. 2 and 3). a. Using two 
strap wrenches, SR01401, unscrew the slow end casting, 3R00038 (figs. 2 
and 3), from the fast end casting, 3R00008. In the event that only one 
strap wrench is available, the fast end casting can be held in the jaws of 
a vise and the slow end casting unscrewed with the strap wrench. If a 
vise is used, however, extreme care must be taken not to apply pressure 
great enough to bend or crack the soft aluminum casting. The jaws of 
the vise should also be padded with two or three thicknesses of cloth to 
prevent marring of the surface of the casting. 
b. Now, remove all grease with dry cleaning solvent (SD) or alcohol. 
Remove broken pieces of gear. 
c. Using a No. 10 Allen wrench, unscrew either or both setscrews, 
SR00186 (fig. 3), as need be, two turns counterclockwise. This unlocks 
the idler gear pins, SR00202. 
d. Pull out idler gear pins and remove brass washer, SR00200. Care 
must be taken not to damage the pin when removing it. 
e. Place new gear and washer on the gear pin. 
f. Using a small hammer, gently tap the gear back into place. Take 
care not to bind the head of the pin against the gear too tightly. 
g. Place two drops of special preservative lubricating oil (PS) on each 
gear. The gear should now turn freely. 
h. A light, high stability grease, No. 2 general purpose grease (WB), 
should be packed loosely around the gears. Other greases must not be 
used as they cannot withstand the high temperatures necessary for steril- 
izing. 
i. Screw castings together and tighten. 
26. SHARPENING OF CHISELS. Chisels, issued as accessories with the 
bone operating case, should not be sharpened. When deemed dull by the 
medical officer in charge, new ones should be requisitioned and the dull 
ones disposed of. 
14 Figure 9. The ring brush holder and all parts. 
1. SR00182—Screw, 6-32 t% Inch, R.H.M., Brass. 
2. SR00179-Screw, 4 t\i Inch, Sheet Metal. FI.H. 
3. 3R00070—Spring, Brush. 
4. SR00181—Screw, 2 V-. Inch, Sheet Metal, R.H. 
5. 3R00064—Ring, Holder, Brush. 
6. SR00180—Terminal, .016 Ga.,^2 Inch Hole,% Inch 
O.D., Copper. 
7. 3R00066—Brush, Carbon. 
8. 3R00068—Holder, Brush. 
9. SR00178-Screw, 4 Inch, Sheet Metal, B.H. 
10. SR00183—Nut, 6 X 32, Square, Brass. 
15 APPENDIX I 
STORAGE AND SHIPMENT 
27. STORAGE. No special storage requirements are necessary for the bone 
operating case. There are, however, two cautions to keep in mind: 
a. The equipment should be stored in a dry place away from dampness, 
b. Extreme care must be taken not to strike the equipment against any- 
thing hard, as serious damage may be caused the motor and casting by a 
sharp blow. 
28. SHIPMENT. To prepare the equipment for shipment, proceed as fol- 
lows: 
a. Disconnect all electrical connections. 
b. Remove attachments and accessories from the motor assembly. Coai 
with special preservative lubricating oil (PS). 
c. Clean equipment thoroughly (see paragraph 17). 
d. Place all assemblies, subassemblies and parts in their proper place: 
in the carrying container. 
e. Pack case securely in a stout box, using paper, rags, or a similai 
material to keep equipment from moving in its container during transit APPENDIX II 
LIST OF PARTS 
Medical 
Dept. No. 
Nomenclature 
Figure 
No. 
*SR00017 
Common Parts 
NUT, 8 X 32, HEX 
*SR00026 
PLUG, MALE, SMALL, TWO-PRONG 
8 
*SR00073 
CORD, NEOPRENE, #16, TWO-CONDUCTOR 
8 
*SR00117 
SCREW, 8-32 X 134 INCH, R.H.M.: Used in foot switch 
- 
*SR00173 
DRILL, TWIST, 2-INCH, CARBON STEEL 
1 
-SR00174 
DRILL, TWIST, 34-INCH, CARBON STEEL 
1 
SR00175 
DRILL, TWIST, 5&-INCH, CARBON STEEL 
1 
*SR00176 
DRILL, TWIST, %-INGH, CARBON STEEL 
1 
*SR00177 
SAW, CIRCULAR, CARBON STEEL, .012 INCH THICK, 
1 Ys INCH O.D. X y8 INCH I.D 
1 
♦SR00178 
SCREW, 4 X 34-INCH, SHEET METAL, B.H.: Used in 
brush holder 
3 
*SR00179 
SCREW, 4 X 34-INCH, SHEET METAL, FL. H.: Used in 
brush holder 
3- 
*SR00180 
TERMINAL, .016 GA., %-INCH HOLE, % INCH O.D., 
COPPER: Used in the field assembly 
3 
*SR00181 
SCREW, 2 X SHEET METAL, R.H.: Used in 
brush spring 
3 
*SR00182 
SCREW, 6-32 X 34 INCH, R.H.M., BRASS: Used in field 
assembly 
3 
*SR00183 
NUT, 6 X 32, SOU ARE, BRASS: Used in field assembly 
3 
*SR00184 
SCREW, 8-32 X 4 INCH, R.H.M.; Used to hold inside bear- 
ing holder to field assembly 
2, 3 
*SR00185 
NUT, 8 X 32, HEX, BRASS: Used for assembly bolt 
2, 3 
SR00186 
SETSCREW, 10-24 X % INCH, ALLEN, CUP PT., STAIN- 
LESS STEEL: Used in idler gear shaft 
3 
SR00187 
SPACER, BEARING, % INCH O.D. X % INCH I.D. X 34e 
INCH THICK 
5 
SR00188 
WASHER, is/16 INCH O.D. X % INCH I.D. X Ke INCH 
THICK, FELT 
2, 3 
SR00189 
TUBING, INSULATION, SPAGHETTI, 3 MM 
3 
*SR00190 
SCREW, INCH, SELF TAPPING, O.H., STAIN- 
LESS STEEL 
2, 3 
*SR00191 
PLUG, MALE, TWIST LOCK, HUBBELL XT 7465 
8 
SR00192 
BEARING, THRUST, 3f6 INCH O.D. X INCH I.D. X 34e 
INCH THICK, BRASS, STEEL BALL 
5 
SR00193 
WRENCH, SETSCREW, BRISTO NO. 8 
5,7 
♦SR00194 
SAW, CIRCULAR, CARBON STEEL, .015 INCH THICK, 
2 INCH O.D. X 546 INCH I.D 
6,7 
♦SR00195 
PLUG, FEMALE, TWIST LOCK, HUBBELL 7464 
8 
♦SR00196 
SCREW, 6-32 X 5/f6 INCH, R.H.M., BRASS: Used in longi- 
tudinal attachment 
7 
S R00197 
SETSCREW, 8-32 X 34 INCH, BRISTO, CUP PT., STAIN- 
LESS STEEL: For saw spindle 
5,7 
SR00198 
SCREW, 10-24 X 34 INCH, FILL.H.M., BRISTO, STAIN- 
LESS STEEL 
- 
SR00200 
WASHER, y6 INCH X 34 INCH X .010 INCH BRASS; For 
idler gear 
3 
SR00201 
WRENCH, SETSCREW, BRISTO, 3A-INCH 
— 
SR00202 
PIN, 10 X 34 INCH, FLAT HEAD: For idler gear 
2, 3 
SR00204 
SETSCREW, 8-32 X INCH, ALLEN, CUP PT., STAIN- 
LESS STEEL; For reciprocating attachment 
- 
SR00205 
SCREW, 2-56 X 34 INCH, FL. H.M.: For reciprocating at- 
tachment 
5 
SR 00206 
SETSCREW, 34-20 X 34 INCH, BRISTO FLAT PT., 
STAINLESS STEEL 
17 Medical 
Dept. No. 
Nomenclature 
Figure 
No. 
3R00002 
Uncommon Parts 
CASE, CARRYING, COMPLETE: With hinges, hasp, and 
handle 
1 
3R00004 
ADAPTER, DRIVER; Used in Jacob’s chuck with reciprocal- 
ing attachment 
1,6,5 
3R00006 
KEY, JACOB’S CHUCK 
2 
3R00008 
CASTING, FAST END: For motor assembly 
2, 3 
*3R00010 
BURR, SLOTTING, SIZE 1 
1 
*3R00012 
BURR, SLOTTING, SIZE 2 
1 
**3R00014 
BURR, CURETTING, #3 
- 
*3R00016 
BURR, CURETTING, #4 
1 
**3R00018 
BURR, CURETTING, #5 
- 
*3R00020 
BURR, CURETTING, #6 
1 
**3R00022 
BURR, CURETTING, #7 
- 
**3R00024 
BURR, CURETTING, #8 
- 
**3R00026 
BURR, CURETTING, #9 
- 
**3R00028 
BURR, CURETTING, #10 
- 
**3R00030 
BURR, CURETTING, #11 
- 
**3R00032 
BURR, CURETTING, #12 
- 
**3R00034 
BURR, CURETTING, #13 
- 
**3R00036 
BURR, CURETTING, #14 
- 
3R00038 
ASSEMBLY, SLOW END, COMPLETE: Including casting, 
Jacob’s chuck, bearings, spindle and internal gear 
2, 3 
*3R00040 
SAW, CIRCULAR, 1%-INCH DIAMETER, WITH HUB. . 
- 
*3R00042 
SAW, STRAIGHT, WIDE, LONG 
4 
*3R00044 
SAW, STRAIGHT, WIDE, SHORT 
4 
*3R00046 
SAW, STRAIGHT, NARROW, LONG 
4 
*3R00048 
SAW, STRAIGHT, NARROW, SHORT 
4 
*3R00050 
CHISEL, BONE, CURVED, y2 INCH 
4 
*3R00052 
CHISEL, BONE, FLAT, y2 INCH 
4 
*3R00054 
CHISEL, BONE, FLAT, % INCH 
4 
3R00056 
CAP, NOSE, FAST-END: For motor assembly 
2, 3 
3R00058 
GEAR. IDLER 
2, 3 
3R00060 
SPINDLE, SAW, LARGE 
- 
3R00062 
FIELD, MAGNETIC: In motor assembly 
2, 3 
3R00064 
RING, BRUSH HOLDER, BAKELITE: Used in field 
3 
*3R00066 
BRUSH, CARBON: Used in field 
3 
3R00068 
HOLDER, BRUSH, BRONZE: Used in field 
3 
*3R00070 
SPRING, BRUSH. BRONZE: Used in field 
3 
3R00072 
HOLDER, BEARING, iy2 INCH ALUMINUM 
2, 3 
3R00074 
BUSHING, MOTOR, LARGE, FIBRE 
2, 3 
3R00076 
BUSHING, MOTOR, SMALL, FIBRE 
2, 3 
3R00078 
ARMATURE, COMPLETE: With bearings 
2,3 
3R00080 
MOTOR, COMPLETE: Assembly 
1,2,3 
3R00082 
RHEOSTAT, FOOT SWITCH 
- 
3R00084 
PLATE, COVER, FOOT SWITCH 
- 
3R00086 
INSULATION, FOOT SWITCH, PAPER 
■ - 
3R00088 
CASTING, LONGITUDINAL, ALUMINUM 
7 
3R00090 
HANDLE, LONGITUDINAL ATTACHMENT 
L 6, 7 
3R00092 
FERRULE, HANDLE, LONGITUDINAL ATTACHMENT.. 
6,7 
3R00094 
SPINDLE, LONGITUDINAL ATTACHMENT, SHORT; 
With spiral gear 
7 
3R00096 
SPACER1, FERRULE, LONGITUDINAL ATTACHMENT. ,. 
3R00098 
SPINDLE, LONGITUDINAL ATTACHMENT, COM- 
PLETE: With spiral gear and bearing 
7 
3R00100 
BEARING, END, LONGITUDINAL ATTACHMENT: 
With spacer 
7 
3R00102 
SPINDLE, SAW, LONGITUDINAL ATTACHMENT 
7 
3R00104 
WASHER, DRIVE, LONGITUDINAL ATTACHMENT 
7 
3R00106 
BODY, TELESCOPIC 
1 
3R00108 
SECTION, “A”, TELESCOPIC ATTACHMENT, ALUMI- 
NUM 
1 
3R00110 
NUT, THUMB, “A”, TELESCOPIC ATTACHMENT 
1 
18 Medical 
Dept. No. 
Nomenclature 
Figure 
No. 
3R00112 
SECTION, “B”, TELESCOPIC ATTACHMENT 
1 
3R00114 
NUT, THUMB, “B”, TELESCOPIC ATTACHMENT 
1 
3R00116 
SECTION, “C”, TELESCOPIC ATTACHMENT 
1 
3R00118 
NUT, THUMB, “C”, TELESCOPIC ATTACHMENT 
1 
3R00120 
SECTION, “D”, TELESCOPIC ATTACHMENT 
- 
3R00122 
NUT, THUMB, “ D”, TELESCOPIC ATTACHMENT 
1 
3R00124 
CASING, OUTER, RECIPROCATING ATTACHMENT. . . . 
5 
3R00126 
SHAFT, RECIPROCATING ATTACHMENT: With drive 
screw 
5 
3R00128 
NOSE, RECIPROCATING ATTACHMENT 
5 
3R00130 
CHUCK, RECIPROCATING ATTACHMENT, COMPLETE 
5 
3R00132 
SLEEVE, ROTATING, RECIPROCATING ATTACH- 
MENT, COMPLETE: With drive shaft 
5 
3R00134 
BUSHING, SQUARE HOLED, RECIPROCATING AT- 
TACHMENT 
5 
3R00136 
BUSHING, RECIPROCATING ATTACHMENT 
5 
3R00138 
CAM, RECIPROCATING ATTACHMENT 
5 
3R00140 
SLEEVE, RECIPROCATING ATTACHMENT, BRONZE 
5 
3R00142 
PLUG, MALE: Electrical inlet to motor 
1,2,3 
3R00144 
WRENCH, OPEN END, % INCH: Special 
7 
3R00146 
MOTOR, ELECTRIC, COMPLETE: Subassembly 
2 
3R00148 
BOX, FOOT SWITCH: With pedal 
- 
3R00150 
SWITCH, FOOT: Assembly 
1-8 
3R00152 
ATTACHMENT, TELESCOPIC, COMPLETE 
1 
3R00154 
ATTACHMENT, LONGITUDINAL, COMPLETE 
1-6 
3R00156 
ATTACHMENT, RECIPROCATING, COMPLETE 
1-4 
3R00158 
CAP, NOSE, SLOW-END: For motor assembly 
2-3 
3R00160 
WASHER, DRIVE, SAW 
-- 
3R00162 
SPRING, ADJUSTING 
2 
3R00164 
NUT, SPINDLE, LARGE SAW 
6,7 
‘To be requisitioned from supplv depot. 
♦‘Accessories not issued with equipment, but to be requisitioned from supply depot. 
Q U.S. Government Pr’nting Office: 1944—6047S0 
19