Related Manuals for TM 9-1829A
Summary of Contents for TM 9-1829A
- Page 1 TM 9-1829A War department Ordnance Maintenance Speedometers, Tachometers and Recorders TM 9-1829A, April 1944 1/100 2021-07-07...
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Page 2: Table Of Contents
Chapter 7: Waltham speedometers ........................76 41. Description ............................76 42. Disassembly ............................76 43. Cleaning, inspection, and repair of parts ....................77 44. Assembly and calibration ........................78 Chapter 8: Stewart-Warner recorders ........................80 TM 9-1829A, April 1944 2/100 2021-07-07... - Page 3 65. Description ............................98 66. Operation ............................... 98 67. Lubrication ............................99 References ................................100 Standard nomenclature list ..........................100 Explanatory publications ..........................100 General ..............................100 Related technical manuals ......................... 100 Decontamination ............................100 TM 9-1829A, April 1944 3/100 2021-07-07...
- Page 4 Figure 53: Removing disk-type pointer, using special puller (T-131105) ............44 Figure 54: Speedometer mechanism (dial removed) .................... 44 Figure 55: Speedometer mechanism with odometers in line ................45 Figure 56: Speedometer mechanism (odometers removed) .................. 45 TM 9-1829A, April 1944 4/100 2021-07-07...
- Page 5 Figure 108: Loosening upper ball race lock nut ....................72 Figure 109: Unscrewing upper ball race ....................... 73 Figure 110: Removing governor shaft ........................74 Figure 111: Adjusting clearance between upper spider and upper ball race ............74 TM 9-1829A, April 1944 5/100 2021-07-07...
- Page 6 Figure 155: Calibrating machine (T-170645) with speedometer mounted on spindle no. 1 ready for test ... 98 Figure 156: Demagnetizing, using special tool (846294) while operating speedometer on calibrating machine (T- 170645) ................................. 99 Digitalized by 45manuals@gmail.com, https://45manuals.wixsite.com/manuals for free distribution TM 9-1829A, April 1944 6/100 2021-07-07...
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Page 7: Chapter 1: Introduction
This manual does not contain information which is intended primarily for the using arms, since such information is available to ordnance maintenance personnel in 100-series TM’s or FM’s. This manual contains a description of, and procedure for testing, disassembly, cleaning, inspection, and assembly of all makes of speedometers, tachometers, recorders (including hourmeters), flexible shafts, and drive joints. -
Page 8: Figure 2: Speedometer Installation
Figure 2: Speedometer installation Figure 3: Flexible shaft Figure 4: Tachometer TM 9-1829A, April 1944 8/100 2021-07-07... -
Page 9: Figure 5: Phantom View Of Basic Components Of Speed-Indicating Portion Of Speedometer
The magnetic field is constant, and the amount of speed cup deflection is at all times proportionate to the speed at which the magnet is being revolved. Figure 5: Phantom view of basic components of speed-indicating portion of speedometer TM 9-1829A, April 1944 9/100 2021-07-07... -
Page 10: Figure 6: Phantom View Of Speedometer
Figure 7: Schematic view of total odometer TM 9-1829A, April 1944 10/100 2021-07-07... -
Page 11: Identification
“Stewart-Warner” on the face dial. (5) Waltham: Marking at bottom of face dial reading “Waltham, made in USA” (fig. 13). Figure 9: Rear of AC speedometer Figure 10: Rear of Auto-Lite Speedometer TM 9-1829A, April 1944 11/100 2021-07-07... -
Page 12: Bench Test Procedure
15 to 20 turns (fig. 14). Tightness may be noticeable in one spot, or over a complete revolution. If tightness or binding is apparent, the instrument should be completely disassembled, and the defective parts repaired or replaced. TM 9-1829A, April 1944 12/100 2021-07-07... -
Page 13: Figure 14: Testing For Tight Mechanism
Dirty or grease-filled mechanism: Disassemble and clean. b) Out of calibration: Recalibrate. (4) Instrument shows correct speed indication over approximately one-half the dial, and incorrect reading over balance of dial. a) Hair spring coils touching: True hair spring with tweezers. TM 9-1829A, April 1944 13/100 2021-07-07... - Page 14 Such errors can be corrected by installing the proper ratio drive joint (or adapter) at the flexible shaft connection on the transmission. TM 9-1829A, April 1944 14/100 2021-07-07...
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Page 15: Chapter 3: Ac Division Of General Motors Speedometers And Tachometers
The male square drive is used with main frames having casing connector threads in.-18. For complete description, operation, and test procedure, refer to paragraphs 2 and 4. Figure 15: AC speedometer disassembled TM 9-1829A, April 1944 15/100 2021-07-07... -
Page 16: Figure 16: Ac Tachometer Disassembled
Figure 16: AC tachometer disassembled Figure 17: Speedometer mechanism (dial removed) TM 9-1829A, April 1944 16/100 2021-07-07... -
Page 17: Disassembly
Remove thrust washer which usually sticks to side of main frame. Note: Use care in driving out the second gear to avoid marring bearing hole in frame. TM 9-1829A, April 1944 17/100... -
Page 18: Cleaning, Inspection, And Repair Of Parts
Inspection of unit parts: Inspection of individual speedometer parts is a matter of close observation, frequently under a magnifying glass, and a sense of feel for rough bearing points. Following are suggestions for inspection of various parts: TM 9-1829A, April 1944 18/100 2021-07-07... -
Page 19: Assembly
0.003 inch) when moved with the fingers. If magnet shaft does not turn freely, this can usually be corrected on the model “L” by tapping the squared end of shaft lightly with a small rawhide hammer. Correction on model “N” requires use of tool (T-170654, fig. 20). TM 9-1829A, April 1944 19/100 2021-07-07... -
Page 20: Figure 22: Flaring Magnet Shaft, Using Fixture (T-170666 With Det. 6)
Assemble total odometer: Insert grooved end of odometer shaft through hole from right side of frame. Assemble one thrust washer, fourth worm, and dummy wheel on odometer shaft. Place a small amount of TM 9-1829A, April 1944 20/100 2021-07-07... -
Page 21: Calibration
Press the magnetizer button firmly for 2 or 3 seconds. Figure 23: Charging AC speedometer or tachometer magnet, using magnetizer (846294) TM 9-1829A, April 1944 21/100 2021-07-07... - Page 22 Master head (rpm) Calibration limits (rpm) Adjust with 160-175 Hair spring regulator arm 500-525 1000-1050 1500 1500-1550 Hair spring regulator arm and demagnetizing 2000 2000-2050 3000 3000-3050 TM 9-1829A, April 1944 22/100 2021-07-07...
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Page 23: Chapter 4: Auto-Lite Speedometers And Tachometers
Remove dial: Remove two small screws from dial (grasp screwdriver firmly to avoid accidental scratching of dial.) Remove odometer (fig. 25): With screwdriver, remove bearing plate screw and locating plate screw. Take off bearing plate, locating plate, and odometer. Figure 25: SPA-type speedometer mechanism (dial removed) TM 9-1829A, April 1944 23/100 2021-07-07... -
Page 24: Figure 26: Removing Hair Spring, Using Puller (T-66296)
Remove oil wick plug and oil wicks: Place tang of screwdriver into hole of plug on an angle (not under flange), and force down on screwdriver lifting cover on one side until it can be removed. Remove wick with tweezers. TM 9-1829A, April 1944 24/100 2021-07-07... -
Page 25: Cleaning, Inspection, And Repair Of Parts
(6) Speed cup: Lay speed cup staff on edge of smooth surface with large cup part extending over edge, and roll staff back and forth to detect a bent shaft. If staff is bent, install new speed cup. Examine lower end of speed cup staff, being sure it is not bent or broken. TM 9-1829A, April 1944 25/100 2021-07-07... -
Page 26: Assembly
Place speed cup over magnet, inserting lower end of staff into jewel in magnet shaft. Place field plate over speed cup, tilting it so that flange goes under intermediate gear first. Install field plate screws and tighten securely. TM 9-1829A, April 1944 26/100 2021-07-07... -
Page 27: Figure 31: Pressing Collar On Magnet Shaft, Using Fixture (T-170666 With Det. 1)
Place hair spring regulator over top of jewel with anchor end toward third gear hole. Install jewel adjusting lock nut with shoulder face down, being careful to enter shoulder into hair spring regulator. Figure 33: Adjusting front jewel, using special tool (T-178705) TM 9-1829A, April 1944 27/100 2021-07-07... -
Page 28: Figure 34: Checking Speed Cup Staff End Play, Using Feeler Gage (St-263-27)
Lubricate magnet shaft: Place speedometer on calibrating machine (T-170645), run at 60 miles per hour and add 2 drops of SAE-10W oil to the oilhole. Saturate a short wick with SAE-10W oil, insert in oilhole and replace oil wick plug. TM 9-1829A, April 1944 28/100 2021-07-07... -
Page 29: Calibration
(3) Recheck speedometer reading in both positions, and also by varying only 90 degrees from original position. When correctly balanced, speedometer indication will not vary from that shown in original position. TM 9-1829A, April 1944 29/100 2021-07-07... - Page 30 Then move fingers along to hold pinion carriers for next figure wheel and proceed as above. Continue until desired total mileage is obtained, then reinstall odometer in front jewel bracket. TM 9-1829A, April 1944 30/100 2021-07-07...
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Page 31: Section Ii: Spj, Spl And Spm Series
Remove field plate and speed cup: Hold assembly in inverted position. With pliers, grip each staked portion of field plate and turn outward slightly (fig. 40). Care must be taken to avoid cup distortion and to avoid TM 9-1829A, April 1944 31/100... -
Page 32: Cleaning, Inspection, And Repair Of Parts
(3) A check of both bracket jewel adjustment and magnet shaft adjustment should be made at this time as follows: Holding speedometer in one hand, with thumb pushing up against bottom of magnet shaft, taking TM 9-1829A, April 1944 32/100... - Page 33 Turn to position and install two screws and lock washers with screwdriver. Install bezel and glass: Put washer and glass in place, then crimp edge of bezel, tapping lightly with small hammer as speedometer rests against wooden block. TM 9-1829A, April 1944 33/100 2021-07-07...
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Page 34: Section Iii: Spk, Spp And Spr Series
Total odometer is mounted below center of dial. It has no trip odometer and no reset assembly. For complete description, operation, and test procedure refer to paragraphs 2 and 4. Figure 38: Auto-Lite tachometer (SPP-type), disassembled TM 9-1829A, April 1944 34/100 2021-07-07... -
Page 35: Disassembly
Remove speed cup and field plate (fig. 40): Hold main frame in inverted position and straighten out crimping at lower edge of field plate and lift off both speed cup and field plate. Figure 40: Removing field plate and speed cup TM 9-1829A, April 1944 35/100 2021-07-07... -
Page 36: Figure 41: Removing Second Gear, Using Extractor (St-263-34)
Remove oilhole covers: Place tang of screwdriver into hole in cover, set on an angle (not under the flange) and force downward on handle, lifting cover on one side until it is free from main frame. TM 9-1829A, April 1944 36/100... -
Page 37: Cleaning, Inspection, And Repair Of Parts
Install bezel and glass (do not install until after calibration): Before installing glass or bezel make sure dial and glass are clean. Install glass and bezel, using special tool (T-178730, figs. 74 and 75). TM 9-1829A, April 1944 37/100 2021-07-07... -
Page 38: Chapter 5: King-Seeley Speedometer
Remove pointer and dial: Grasp pointer hub with thumb and forefinger and twist in a counterclockwise direction (against stop) while pulling gently but firmly until it comes off (fig. 78). Remove two dial retaining screws and lock washers, and lift off dial. TM 9-1829A, April 1944 38/100 2021-07-07... -
Page 39: Figure 45: Speedometer Mechanism (Dial Removed)
Then turn wrench handle clockwise (fig. 47) until collar is pressed off the magnet shaft. Remove dismantling wrench, TM 9-1829A, April 1944 39/100... -
Page 40: Cleaning, Inspection, And Repair Of Parts
To establish proper end play, use magnet dismantling wrench (T-170654) (fig. 47), and start shaft out by tightening down wrench handle turn, or less. The correct end play (0.005 inch to 0.007 inch) can be gaged by inserting a feeler between the collar and rear thrust washer. TM 9-1829A, April 1944 40/100 2021-07-07... -
Page 41: Figure 48: Flaring Magnet Shaft, Using Fixture (T-170666 With Det. 6)
Figure 49: Applying thumb pressure on magnet shaft while adjusting front jewel with special tool (T-178705) TM 9-1829A, April 1944 41/100 2021-07-07... -
Page 42: Calibration
Then carefully demagnetize further (at 60 miles per hour on master head) until the repaired unit reads within limits. Caution: Do this demagnetizing very carefully, as it is extremely difficult to recharge magnets that have been knocked down too far (par. 9 b). For further instructions refer to chapter 13. TM 9-1829A, April 1944 42/100 2021-07-07... -
Page 43: Chapter 6: Stewart Warner Speedometers And Tachometers
(2) Rolled bezel: Pry bezel loose (with screwdriver) at two points about 1 inch apart. Use cutting pliers and tear out this section of bezel (fig. 51). Then pull bezel off (fig. 52) and remove other parts (par. a (1) above). TM 9-1829A, April 1944 43/100 2021-07-07... -
Page 44: Figure 51: Tearing Out Section Of Rolled Bezel
(one screw), pry up end of retainer, squeeze drive gear against the trip odometer tenth dial and pull trip odometer out of frame. Note: Removing trip odometer also releases reset gear, drive gear, and reset spring. Figure 54: Speedometer mechanism (dial removed) TM 9-1829A, April 1944 44/100 2021-07-07... -
Page 45: Figure 55: Speedometer Mechanism With Odometers In Line
Remove hair spring: Remove hair spring pin by placing one jaw of long-nosed pliers against small end of pin and other jaw against end of hair spring regulator and squeezing pin out (fig. 57). Figure 57: Removing hair spring pin TM 9-1829A, April 1944 45/100 2021-07-07... -
Page 46: Figure 58: Removing Hair Spring, Using Puller (T-66296)
Then turn wrench handle clockwise (fig. 60) until collar is pressed off the magnet shaft. Figure 60: Removing magnet shaft collar, using dismantling wrench (T-170654) TM 9-1829A, April 1944 46/100 2021-07-07... -
Page 47: Figure 61: Smoothing Out Flare In Magnet Shaft, Using Fixture (T-170666 With Det. 7)
After smoothing out flare, use safety-edge file (T-170757) to remove any remaining burs from end of magnet shaft (fig. 62) (to prevent scoring bearing surface in frame), then slip magnet and shaft out of frame. Figure 62: Removing burs from magnet shaft TM 9-1829A, April 1944 47/100 2021-07-07... -
Page 48: Cleaning, Inspection, And Repair Of Parts
If badly worn, replace assembly. Hold ends of staff between thumb and forefinger, and spin cup to see that it runs true and is not bent or otherwise damaged. Note: This assembly must be handled very carefully to prevent its being thrown out of balance, out of line, etc. TM 9-1829A, April 1944 48/100 2021-07-07... -
Page 49: Assembly And Calibration
Using fixture (T-170666 with Det. 6) flare end of magnet shaft (fig. 66). Allow about 0.003 inch end play (barely perceptible) in magnet shaft. Check to see that magnet turns freely. Figure 66: Flaring magnet shaft, using fixture (T-170666 with Det. 6) TM 9-1829A, April 1944 49/100 2021-07-07... -
Page 50: Figure 67: Replacing Oil Wick Plug
Be sure hair spring regulator is in correct position with slotted end toward odometer intermediate gear. Remove rear jewel bracket, allowing speed cup to be lifted out of frame. Figure 68: Adjusting front jewel, using special tool (T-178705) TM 9-1829A, April 1944 50/100 2021-07-07... -
Page 51: Figure 69: Magnet Strength Tester (408165, On Frame And Magnet Assembly) Attached To Calibrating Machine (T-170645)
Magnet strength tester reading at 60 mph or 1000 rpm (in degrees) at 60 mph (1000 rpm) 60-70 70-80 80-90 90-100 100-110 110-120 120-130 130-140 140-150 150-160 160-170 170-180 180-190 190-200 200-210 210-220 220-230 230-240 240-250 250-260 TM 9-1829A, April 1944 51/100 2021-07-07... -
Page 52: Figure 70: Replacing Hair Spring, Using Assembly Kit (T-29)
(fig. 71) until speed cup stop rests against rear jewel bracket and so that hair spring tends to pull speed cup in counterclockwise direction. Using tweezers, carefully line up hair spring so that coils are equally spaced and do not touch one another when speed cup is in any position. TM 9-1829A, April 1944 52/100 2021-07-07... -
Page 53: Figure 71: Adjusting Hair Spring Tension By Turning Collet On Staff, Using Adjuster (T-51742)
Then place complete assembly in frame and fasten with screw and spring clip. (3) After replacing odometers, test for binds in odometer gearing. TM 9-1829A, April 1944 53/100 2021-07-07... -
Page 54: Figure 73: Holding Speedometer On Calibrating Machine (T-170645) And Testing At 30 Mph
(fig. 74). Place upper portion of fixture (T-178730 Det. 2) over speedometer, place entire assembly in arbor press, and roll bezel (fig. 75). Remove speedometer from tool. TM 9-1829A, April 1944 54/100 2021-07-07... -
Page 55: Figure 74: Placing Upper Die Of Bezel Rolling Fixture (T-178730) Over Speedometer
Figure 74: Placing upper die of Bezel rolling fixture (T-178730) over speedometer Figure 75: Rolling bezel with fixture (T-178730) in arbor press (3) Attach miscellaneous parts to speedometer, such as reset shaft nut, reset knob, sealing gasket and plate, mounting bracket, etc. TM 9-1829A, April 1944 55/100 2021-07-07... -
Page 56: Section Ii: Speedometers And Tachymeters With Flat Disk-Type Magnets
(fig.89). For complete description, operation. and test procedure refer to paragraphs 2 and 4. Figure 76: Stewart-Warner speedometer with flat disk-type magnet disassembled TM 9-1829A, April 1944 56/100 2021-07-07... -
Page 57: Disassembly
Note: On some models the face dial is held in place by lugs or ears (instead of screws) which must be straightened out before the face dial can be removed. Figure 78: Removing pointer TM 9-1829A, April 1944 57/100 2021-07-07... -
Page 58: Figure 79: Removing Elbow Joint Screw
Remove trip odometer clip (fig. 81) and lift out trip dials and shaft assembly, tenth dial, dial spring, reset spring, and drive gear (fig. 100). Figure 81: Speedometer mechanism (dial removed) TM 9-1829A, April 1944 58/100 2021-07-07... -
Page 59: Figure 82: Drilling Out Crimping At Center Of Spur Gear
Using adjuster (T-178705) unscrew front jewel (fig. 96). Back off thumb screw of hair spring puller (T-66296) and place claw around staff and under center of hair spring. Tighten down thumb screw until hair spring comes off (fig. 84). TM 9-1829A, April 1944 59/100 2021-07-07... -
Page 60: Figure 84: Removing Hair Spring, Using Puller (T-66296)
Remove second gear: Place frame, gear, and magnet assembly in vise (not too tightly). Using punch, drive on end of second gear (fig. 85) until brass bushing at other end of shaft drops out. Figure 85: Removing second gear TM 9-1829A, April 1944 60/100 2021-07-07... -
Page 61: Figure 86: Removing Magnet Shaft Collar, Using Dismantling Wrench (T-170654)
After smoothing out flare, use safety-edge file (T-170757) to remove any remaining burs from end of magnet shaft (fig. 62) to prevent scoring bearing surface in frame, then slip magnet and shaft out of frame. TM 9-1829A, April 1944 61/100 2021-07-07... -
Page 62: Cleaning, Inspection And Repair Of Parts
No. 00 grease, O.D., and lubricate shaft with watch and clock oil. Place thrust washer (fig. 89) on main frame and then place magnet shaft in frame, making sure that thrust washer is in proper position. Figure 89: Magnet removed from frame TM 9-1829A, April 1944 62/100 2021-07-07... -
Page 63: Figure 90: Pressing Collar On Magnet Shaft, Using Fixture (T-170666 With Det. 1)
Figure 92: Flaring magnet shaft, using fixture (T-170666 with Det. 6) Replace oil wick and plug: Saturate oil wick in watch and clock oil and place in frame. Using punch, tap oil wick plug into place (fig. 67). TM 9-1829A, April 1944 63/100 2021-07-07... -
Page 64: Figure 93: Driving Second Gear Bushing In Place
“Hair Spring Chart” (par. 31 f) after determining pointer deflection (in degrees) at 60 miles per hour of speedometer being repaired (see following list). Select proper hair spring from kit (408082). Figure 94: Magnet strengt tester (408164; on frame and magnet assembly) attached to calibrating machine (T-170645) TM 9-1829A, April 1944 64/100 2021-07-07... -
Page 65: Figure 95: Replacing Hair Spring, Using Assembly Kit (T-29)
If the model number of the speedometer being repaired does not appear in above list, the angle of pointer travel from zero to 60 miles per hour on the dial may be easily determined with a protractor. TM 9-1829A, April 1944 65/100... -
Page 66: Figure 96: Adjusting Front Jewel, Using Special Tool (T-178705)
Using adjuster (T-51742), turn hair spring collet on staff (fig. 72) until speed cup stop rests against rear jewel bracket and so that hair spring tends to pull speed cup in same direction as loose end of hair spring points. TM 9-1829A, April 1944 66/100... -
Page 67: Figure 98: Staking Intermediate Gear, Using Fixture (T-178717)
Figure 99: Odometer frame with total odometer in place Place trip odometer assembly (fig. 100) in frame (with tenth dial spring inside frame) and fasten with clip and screw (fig. 81). Figure 100: Trip odometer and attaching parts TM 9-1829A, April 1944 67/100 2021-07-07... -
Page 68: Figure 101: Mechanism With Speed Unit And Odometer Frame Removed To Show Position Of Second And Third Gears
(par. 35 e), or the magnet strengthened with the magnet regulator (fig. 102). Figure 102: Moving magnet regulator, using adjusting kit (T-178715) TM 9-1829A, April 1944 68/100 2021-07-07... - Page 69 (fig. 102). Replace regulator hole plug. If instrument cannot be calibrated, refer to paragraph Master reading Calibration tolerance 10 mph 9-11 mph 30 mph 30-32 mph 60 mph 60-63 mph Replace bezel, gaskets, glass, etc.: Refer to paragraph 31 n. TM 9-1829A, April 1944 69/100 2021-07-07...
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Page 70: Section Iii: Centrifugal Tachometers
The outside case is weatherized. The basic mechanism consists of a flyball-type governor assembly. Figure 103: Stewart-Warner centrifugal tachometer Figure 104: Stewart-Warner centrifugal tachometer, disassembled TM 9-1829A, April 1944 70/100 2021-07-07... -
Page 71: Bench Test Procedure
Excessive noise: Due to principles of operation, centrifugal type tachometers are necessarily noisier in operation than magnetic type instruments. Therefore, a whirring noise in the instrument when operated at high speed does not necessarily indicate trouble. TM 9-1829A, April 1944 71/100 2021-07-07... -
Page 72: Disassembly
Remove governor assembly: Loosen upper spider set screw (O, fig. 105). Using thin 14 inch open-end wrench, loosen upper ball race lock nut while holding race with screwdriver (fig. 108). Figure 108: Loosening upper ball race lock nut TM 9-1829A, April 1944 72/100 2021-07-07... -
Page 73: Cleaning, Inspection, And Repair Of Parts
Drive gear assembly: Check for free turning and for excessive side and end play of shaft in bearing. Check fiber gear for broken teeth and excessive wear. If defective, discard entire assembly. TM 9-1829A, April 1944 73/100 2021-07-07... -
Page 74: Assembly And Calibration
Replace face dial: When placing face dial on frame make sure that maximum hand reset lever is in proper position so that maximum hand returns to pointer stop pin when this lever is depressed. Also be sure ratchet adjustment is correct (par. 39 b). Fasten face dial in place (two screws). TM 9-1829A, April 1944 74/100 2021-07-07... -
Page 75: Figure 112:Tapping Pointer On Staff While Running On Calibrating Machine (T-170645)
Figure 112:Tapping pointer on staff while running on calibrating machine (T-170645) Replace bezel and case: Place mechanism in case, replace glass, gaskets, and bezel, and fasten with screws. Weatherize case with sealing or plugging cement. TM 9-1829A, April 1944 75/100 2021-07-07... -
Page 76: Chapter 7: Waltham Speedometers
Remove dial supports, odometers, third gear, and reset shaft (fig. 114). Remove dial supports (two) by prying up with screwdriver. The odometers, third gear, and reset shaft may now be lifted out of frame. Be careful not to damage hair spring. TM 9-1829A, April 1944 76/100 2021-07-07... -
Page 77: Cleaning, Inspection, And Repair Of Parts
Inspect for free turning of dummy wheel on total odometer and tenth wheel on trip odometer. If odometers are “bound up” discard complete assembly. Dial supports: Inspect to see that they have not been bent in disassembly. If so, straighten. TM 9-1829A, April 1944 77/100 2021-07-07... -
Page 78: Assembly And Calibration
(fig. 117). Then check at 30 and 10 miles per hour. Bonnet adjusting screws should not be turned out more than 1 turns. In exceptional cases the speedometer reading may be too high, even though adjusting screws are turned out 1 turns. In such cases cut coil from hair spring. TM 9-1829A, April 1944 78/100 2021-07-07... -
Page 79: Figure 117: Loosening Bonnet Adjusting Screws With Calibration Adjuster (Sts-10878)
Replace case, glass, bezel, etc.: Place mechanism in case and fasten (two screws). Place glass retainer, glass, gaskets, and bezel in position and roll bezel (figs. 74 and 75). Place washers, spring, and knob on reset shaft. TM 9-1829A, April 1944 79/100... -
Page 80: Chapter 8: Stewart-Warner Recorders
Figure 118: Stewart-Warner hour meter and mileage recorder Recorders are used to accurately record engine motor mileage, wheel mileage, engine crankshaft revolutions, or hours of engine operation (based on average engine speed). Figure 119: Stewart-Warner recorder, disassembled TM 9-1829A, April 1944 80/100 2021-07-07... -
Page 81: Figure 120: Recorder With Cover Removed
Figure 120: Recorder with cover removed Remove two screws and lift out odometer assembly and driven gear. Remove sleeves and drive gear: Using punch (T-170742), drive out two sleeve retaining pins (fig. 121). Figure 121: Removing sleeve retaining pin TM 9-1829A, April 1944 81/100 2021-07-07... -
Page 82: Figure 122: Driving Out Sleeves
(fig. 119) and that slots in sleeves line up with pin holes in case. Place assembly on arbor press and squeeze sleeves into case (fig. 123). Using small hammer, drive pins into holes. Figure 123: Pressing sleeves into case TM 9-1829A, April 1944 82/100 2021-07-07... -
Page 83: Figure 124: Flexible Shaft
Core with tip on both ends (C, fig. 125): Secure new tips like those on old core. Measure depth of hole in each tip, measure visible length of old core and add depths of holes. Figure 125: Drawing showing length to cut core stock TM 9-1829A, April 1944 83/100 2021-07-07... -
Page 84: Figure 126: Cutting Core Stock, Using Fixture (T-136374)
Remove from die and check to see that bushing is securely crimped to inner core. TM 9-1829A, April 1944 84/100 2021-07-07... -
Page 85: Figure 127: Squaring End Of Inner Core, Using Fixture (T-136374)
Care must be taken to prevent unraveling or fraying of squared core ends. Frayed ends can be touched up on a fine grinding wheel by rotating core on grinding wheel in direction of outer wire spiral. Figure 128: Crimping tip on inner core, using fixture (T-136374) TM 9-1829A, April 1944 85/100 2021-07-07... -
Page 86: Figure 129: Drawing Showing Length To Cut Casing Stock
Repeat the above while turning casing and ferrule until a ring is crimped completely around the ferrule. Then move ferrule in dies and crimp another ring as described above (fig. 131). Figure 131: Ferrule crimped on casing TM 9-1829A, April 1944 86/100 2021-07-07... -
Page 87: Figure 132: Crimping Ferrule, Using Pliers (T-122308)
(lower end first) through lubricant and into casing (fig. 133). Caution: Never fill the casing with grease. Figure 133: Lubricating inner core as it is assembled to casing TM 9-1829A, April 1944 87/100 2021-07-07... -
Page 88: Figure 134: Ac Heavy-Duty Speed Adapter
Do not disassemble the bushings at each end of the body die casting. Assembly is the reverse of disassembly. If gears are assembled on their respective shafts care must be taken to keep shaft square with gear while pressing together. Figure 135: AC heavy-duty speed adapter, disassembled TM 9-1829A, April 1944 88/100 2021-07-07... -
Page 89: Figure 136: Stewart-Warner Type 666 Drive Joint
(figs. 136 and 137). Threaded sleeves are provided for connecting the drive joint to the power take-off and for attaching the flexible shaft. Figure 136: Stewart-warner type 666 drive joint Figure 137: Stewart-Warner type 666 drive joint, disassembled TM 9-1829A, April 1944 89/100 2021-07-07... -
Page 90: Figure 138: Removing Gear (A), Using Adapter Tool (T-178708 Det. 4)
Remove sleeve and nut (transmission end): Place assembly on vise and, using punch (T-170742), drive out pin which holds sleeve in position (fig. 139). Figure 139: Driving out sleeve retaining pin Then drive sleeve out of case (fig. 140). Figure 140: Driving out sleeve TM 9-1829A, April 1944 90/100 2021-07-07... -
Page 91: Figure 141: Removing Gear (D), Using Adapter Tool (T-178708 Det. 3)
(ratio is stamped on case; fig. 136). TM 9-1829A, April 1944 91/100... -
Page 92: Figure 143: Pressing Gear (C), On Shaft, Using Adapter Tool (T-178708 Det. 1)
Replace sleeve (shaft end): Place shaft side of case and sleeve (with male thread) in vise and press in sleeve (fig. 145), making sure that slot in sleeve lines up with pin hole in case, using small hammer to drive pin in place. Figure 145: Pressing sleeve into case TM 9-1829A, April 1944 92/100 2021-07-07... -
Page 93: Figure 146: Pressing Gear (D), On Shaft, Using Adapter Tool (T-178708 Det. 1 And 5)
Replace gasket. Fill both sides of drive joint with No. 00 grease, O.D. Make sure that the gears are in mesh, bring the two halves of the drive joint together, and replace the four screws. Test for free turning. TM 9-1829A, April 1944 93/100... -
Page 94: Figure 149: Stewart-Warner 659 Distributor-Type Drive Joint
Stewart-Warner drive joints and adapters, other than the 659- and 666-type, are replaced as a unit if defective. Figure 150: Stewart-Warner 659-type drive joint, partially disassembled TM 9-1829A, April 1944 94/100 2021-07-07... -
Page 95: Figure 151: Master Tool Kit (T-187852)
Grease, hi-low test 408083 Grease, magnet bearing ST-263-36 Installer, gear ST-263-35 Joint, swivel (for CW drive) T-176827 Joint, swivel (for CCW drive) T-178704 Kit, disassembly and assembly Stewart-Warner type-666 drive-joints T-178708 Kit, hair spring assembly T-29 TM 9-1829A, April 1944 95/100 2021-07-07... -
Page 96: Figure 152: Calibrating Machine And Accessories (T-170645); Magnet Strengt Testers And Hair Spring Kit (408082
Tester, magnet strength 408165 Wrench, magnet dismantling T-170654 Wrench, spanner, elbow joint gear T-49509 Wrench, spanner, odometer dial aligning T-40783 Figure 152: Calibrating machine and Accessories (T-170645); magnet strengt testers and hair spring kit (408082) TM 9-1829A, April 1944 96/100 2021-07-07... -
Page 97: Figure 153: Special Tools
Figure 153: Special tools Figure 154: Special tools TM 9-1829A, April 1944 97/100 2021-07-07... -
Page 98: Figure 155: Calibrating Machine (T-170645) With Speedometer Mounted On Spindle No. 1 Ready For Test
Make sure instrument which is to be tested or calibrated is not “bound up”. Select proper swivel joint and adapter. The regular swivel joint (T-176827) is used with instruments having a clockwise face dial. TM 9-1829A, April 1944 98/100... -
Page 99: Figure 156: Demagnetizing, Using Special Tool (846294) While Operating Speedometer On Calibrating Machine
(one screw), spindles (by removing one screw each and unscrewing spindles), and 20 screws around base of machine. Entire case can then be lifted off mechanism. The two swivel joints (T-176827 and T- 178704) must be lubricated with No. 00 Grease, O.D., about once a year. TM 9-1829A, April 1944 99/100 2021-07-07... - Page 100 Cleaning, preserving, lubricating, and welding materials and similar items issued by the ordnance department Decontamination TM 3-220 Chemical decontamination materials and equipment FM 17-59 Decontamination of armored force vehicles FM 21-40 Defense against chemical attack TM 9-1829A, April 1944 100/100 2021-07-07...
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HI WHERE CAN I BUY THE TOOLS TO REBUILD THE SPEEDOMETER WRENCH , PULLERS C LAMPS ETC ETC PAGES 27,46