1948-50 (22nd->23rd Series) - ULTRAMATIC
|
| Subject | Application | Document |
Bearings, Care of Ball and Roller installation/removal damage - proper support | (all models) | |
Bell Housing Oil Seal leather leaks - use neoprene | 23rd-24th; (25th-55th) | |
Bell Housing Oil Seal Leaks converter mis-alignment - checks | 23rd-24th; (25th-56th) | |
Brake Piston Seal Retainer - Part No. 423084 low and reverse - proper thickness | 23rd-54th | |
Breather Oil Leaks speeds over 30MPH - speedometer driving gear installed backwards | 23rd-26th | |
Breather, Late Type oil loss - new design, relocated | 23rd-24th | |
Bushing Tools, Service description and illustration of use | 23rd-24th | |
Bushing Tools, Service description and illustration of use | 23rd-55th | |
Bushings and Bearings, Service parts list | 23rd-56th | |
Bushings, Service parts available for service | 23rd-55th | |
Bushings, Service parts available for service | 23rd-24th | |
Bushings, Service parts/tools now available, do not order complete housings - see SC Vol. 24, no. 11 | 23rd-24th | |
Bushings, Service Replacment clutch housings, thicker bushings - new kits, superseded parts | 23rd | |
Changes in… (Confidential) production - with part, effective date/unit | 23rd-24th | STB 51T-10 (Zones only) |
Changes in… (Confidential) production - with part, effective date/unit | 23rd-24th | STB 51T-3 (Zones only) |
Control Assembly Part No. 423800 (exc. Gear Start) superceded part - exceptions | 23rd-54th | |
Control Assembly, New Type exploded view - adjustment procedure affected | 23rd | |
Control Throttle Shaft Over-Travel, Correcting high range clutch failure - new throttle shaft stop | 23rd | |
Control Timing Valve Spring Seat cleaning precaution | 23rd | |
Control Valve: Damper - New Type pulsation/flutter - new type valve | 23rd-24th | |
Control Valve: Dampers two head styles - proper removal (NOTE: page missing from archived document) | 23rd | |
Control Valve: Lever and Link new, one-piece link and adjustments | 23rd | |
Control Valve: Lever And Link Assembly, New Type new, one-piece link and adjustments | 23rd | |
Control Valve: Link Adjustment engine load in park, high range engaged - adjustment using special tool | 23rd | |
Control Valve: Torque-Tightening Controls stuck valves - fluid/pressure leaks (NOTE: page missing from archived document) | 23rd-56th | |
Control Valve: Valve Body Separator Kit third design - drill/tap body for additional retaining screws | 23rd | |
Control Valve: Valve Body, Upper new production, die-cast - requires spring-type check valve | 23rd-24th | |
Converter Inlet Pressure lower pressure in reverse | 23rd-24th | |
Converter Oil Leak gasket/bolts - pump flange clearance inspection/correction | 23rd | |
Converter: Application Chart part number reference - incl. flywheel | 23rd-25th | |
Converter: Corrosion Preventative in Replacements silica gel pack - remove | 23rd-24th; (25th-56th) | |
Converter: Fluid Leaks damaged washers - use of sealant | 23rd-56th; 56J | |
Converter: Reactor Shaft Bushing Clearance direct drive failure - excessive clearance | 23rd-24th; (25th-55th) | |
Converter: Reactor Shaft End Play direct drive clutch hang-on - new thrust washers, increase running clearance | 23rd | |
Diagnosis basic procedure, pressure tests, adjustments | 23rd; (24th-54th, exc. Gear Start) | |
Diagnosis and Pressure Check Information (exc. Gear Start) direct drive clutch engagement - procedures | 23rd-54th | |
Direct Drive Clutch - see also; Diagnosis and Pressure Check Information | -- | -- |
Direct Drive Clutch: Fails to Disengage engine stalling - enlarge governor oil vent | 23rd-26th | |
Direct Drive Clutch: Fails to Disengage hanging on - causes/correction, additional annular grooves | 23rd | |
Direct Drive Clutch: Fails to Disengage hanging on - causes/correction, additional annular grooves | 23rd | |
Direct Drive Clutch: Fails to Disengage hanging-on, stalling - converter production changes, identification | 23rd | STB 49T-37 (Zones only) |
Direct Drive Clutch: Fails to Disengage When Coming To A Stop - Engine Stalls sticking valves, clutch driving plate - free up valves, proper torque | 23rd | |
Direct Drive Clutch: Piston Ring Gap, Checking precautions - specifications | 23rd-24th; (25th-54th, exc. Gear Start) | |
Direct Drive Clutch: Plate - 11-1/4 and 9-in. Diameter torsional disturbance, roar - new types, larger spring openings | 23rd-26th | |
Direct Drive Clutch: Plates - 11-1/4-in. torsional disturbance, with new style planetary dampers - enlarged spring openings | 23rd-25th | |
Direct Drive Clutch: Plates, Grooved (CORRECTED) included in converters, identification - field identification, special serial numbering | 23rd | STB 50T-26C, Dealer 21 |
Direct Drive Clutch: Plates, Grooved included in converters, identification - field identification | 23rd | |
Engine Runaway/Flare - see also: Front Oil Pump High Range Clutch Low Range Brake Throttle Control/Linkage Throttle/Timing Valve | -- | -- |
Engine Support Bar new special tool - transmission removal | 22nd-23rd | |
Flat Rate Item Allowances And Changes And Additions To Flat Rate Manual corrections - additions | 23rd | |
Flat Rate Manual, Changes in inspection and fluid change - sheets attached | 23rd-54th | |
Flat Rate Manual, Revised Edition of the Current revisions/corrections - Ultramatic added | 23rd | |
Flat Rate Times Revision, Ultramatic Drive adjustments per survey | 23rd | |
Fluid Drain Can new special tool - fluid filtering/reuse | 23rd-24th; (25th-56th) | |
Fluid Drain Period Revised increased - level check unchanged | 23rd-24th | |
Fluid Level, Checking converter outlet check valve eliminated - check within one minute | 23rd-24th | |
Flywheel superseded parts - 9- and 11-1/4-in. converters | 23rd-25th | |
Flywheel Attaching Screws (Part Number - Correction) self-locking washers | 23rd-25th | |
Flywheel Attaching Screws discard old screws - use new self-locking type | 23rd-25th | |
Flywheel Screw superceded part | 23rd-24th | |
Flywheel Screws part number correction | 23rd-25th | |
Forward Gears Inoperative, Transmission (exc. Gear Start) front pump relief valve sticking | 23rd-54th | |
Governor Assemblies, Replacement calibrated to axle ratio - part number reference | 23rd | |
Governor Assemblies, Replacement calibrated to axle ratio - part number/application reference | 23rd | |
Governor Cleaning Brushes new special tool - nylon | 23rd; (24th-54th, exc. Gear Start) | |
Governor Flyweight Ring Tool alternative tool - fabrication | 23rd; (24th-54th, exc. Gear Start) | |
Governor Housing and Inlet Valve governor rattle - venting changed | 23rd-25th | |
Governor Replacement returns not defective - clean, free up vent valve | 23rd | |
Governor Valves Sticking oil screen cleaning | 23rd-24th; (25th-54th) | |
Governor Vent Valve and Support sticking - improved design | 23rd-25th | |
Governors, Cleaning inspection, dressing, washing | 23rd; (24th-54th, exc. Gear Start) | |
High Range Clutch: 10 and 12 Plate Assemblies, Identifying visual indicators - parts interchange | 23rd-25th | |
High Range Clutch: Assembly lubrication improved - vent springs/holes eliminated | 23rd-26th | |
High Range Clutch: Piston Ring Gap, Checking precautions - specifications | 23rd-24th; (25th-54th, exc. Gear Start) | |
High Range Clutch: Plates - Replacement use of new parts only | 23rd-25th | |
Hydraulic Disturbance low speed, deceleration - add cooler line insulators | 23rd | |
Hydraulic Disturbance low speed, deceleration - add cooler line insulators | 23rd | |
Input Shaft Assembly, Late Design additional oil hole for reactor shaft bushing - inspect stock, return old type | 23rd; (24th?) | |
Inspection and Servicing...During the Warranty Period recommended procedures/intervals - fluid checks/changes | 23rd | |
Lifting Bar Holes, Cleaning insufficient thread - dirt | 23rd | |
Linkage Adjustments - see also: Throttle Control Rod Throttle Linkage Throttle Valve Lever | -- | -- |
Linkage Adjustments selector, control valve, throttle - latest, updated procedures/special tools | 23rd-26th | |
Low Range Drum to Reactor Clutch Housing Clearance specification increased | 23rd-24th | |
Low Range Operation high range clutch failure - proper use of low range | 23rd-25th; (26th-56th) | |
Low Range Operation high range failure - proper use | 23rd-25th; (26th-56th) | |
Oil Change at 1000 Mile Inspection During Warranty Period, Discontinuation of improved production cleaning/inspection - no longer warranted | 23rd | |
Oil Cooler engine-mounted conversion - improved cooling | 23rd | |
Oil Cooler radiator tank cooler failure - new, engine-mounted kit | 23rd | |
Oil Cooler Assembly, Radiator Core Bottom Tank and cooler tube failure - new service part | 2301-02-06-13 | |
Oil Cooler Fittings radiator core - use 45-degree | 23rd | |
Oil Filler Cap Campaign oil loss at breather, new vent for cap - field modification | 23rd | |
Oil Hole in Universal Joint Flange not needed - removed from production, plugged | 23rd | |
Oil Leaks from flywheel housing - locating source | 23rd-25th | |
Oil Leaks past articles referenced | 23rd-54th | |
Oil Leaks, Starter Safety Switch gasket failure - installation assist | 23rd-54th | |
Oil Loss at Breather level, restrictions, overheating - relocation | 23rd-56th; 56J | |
Oil Pressure Changes production change - revised test specifications | 23rd-25th | |
Oil Pumps multiple design changes - now serviced as assembly only | 23rd | |
Oil Screen governor/valves sticking - cleaning | 23rd-24th; (25th-54th) | |
Oil Seals damage, leaks - special tools, proper use | 23rd-24th | |
Operation - Coasting discouraged - high range clutch wear | 23rd-25th | |
Operation Under Emergency Conditions rocking, long pulls, steep grades - use low range | 23rd-25th | |
Parts List, Preliminary illustrated - part reference | 2306-33 | |
Piston Ring Gap, Checking direct drive, high range clutches - specifications | 23rd-24th; (25th-54th, exc. Gear Start) | |
Pump Check Valve Clatter front pump knock - new relief valve spring | 23rd | STB 49T-25 (Zones only) |
Pump Check Valve Clatter new damper for production - field installation | 23rd | |
Pump Check Valve Noise click/flutter - new type valve | 23rd-24th | |
Pump Check Valve Noise clicking, fluttering - new spring-type valve | 23rd-24th | |
Pushing or Towing Ultramatic Drive Equipped Cars emergency procedure | 23rd | |
Radiator Cooler Tube Failure excessive pressure - check valve eliminated | 23rd | |
Radiator Cooler Tube Failure excessive pressure, sticking check valve - check valve torque, inspect free play | 23rd | |
Radiator Cores standard ordered in error, lacks cooler - part number reference | 23rd | |
Replacement Units 10- vs. 12-plates - not interchangeable | 23rd | |
Reverse Not Released - Tips From The Editor planetary ring gear bushing scored/seized - band adjustment, piston sticking | 23rd-54th | |
Reverse Piston Seal Retainer and Band Adjusting Screw high range clutch failure, dislocated seal - improved parts, same numbers | 23rd-26th | |
Serial Number Correction - Die-Cast Valve Bodies starting numbers incorrect in STB 52T-1, Dealer 1 | 23rd-24th | |
Servicing and Testing...Cars Before and After Delivery recommended inspection and follow-up | 23rd | |
Servicing the Ultramatic fluid type and level - draining and refilling | 23rd | |
Speedometer and Governor Gears, Nylon superseded steel parts | 23rd-54th | |
Speedometer Driving Gears Spacer, New Type improved lubrication, retrofit - related parts | 23rd | |
Speedometer Pinions and Adapters offset pinion bore - part number reference | 23rd-54th | |
Starter Safety Switch two types - not interchangeable | 23rd | |
Throttle Linkage Adjustments Change high range clutch burnout, low pressure - revised procedure, temporary shims | 23rd | |
Throttle Linkage Tools - Adapters new extensions - facilitate revised procedures | 23rd | |
Throttle Linkage, Sticking bell crank corrosion - clearing, lubrication | 23rd | |
Throttle Linkage, Sticking bell crank corrosion - clearing, lubrication | 23rd | |
Throttle Shaft Adjusting Gauges new special tool - Carter WGD | 23rd | |
Throttle Valve and Timing Valve Kit engine runaway - improved design | 23rd-26th | |
Throttle Valve Lever Adjusting Gauge - PU344 special tool, return - first run, incorrectly bent (NOTE: page missing from archived document) | 23rd | |
Throttle Valve Lever Adjustment key eliminated, use new tool - proper procedure | 23rd | |
Throttle Valve Lever Adjustment, Additional Information on clarification of procedure - S.C. Vol. 24, No 4 | 23rd | |
Throttle Valve Link Rod Adjusting Gauge new type control valve and link - new tool required | 23rd | |
Timing Valve Timing Pin - Revised excessive overlap low-to-high, cold - fabricating smaller pin | 23rd-26th | |
Tool Manual Inserts order blanks - transmission hoist | (all models) | |
Torque Changes to Prevent Leakage, Cap Screw converter pump, bell housing - inspection procedure, new specs | 23rd | |
Torque Specifications reference chart | 23rd | |
Transmission, Service serial number suffix - updated parts | 23rd-26th | |
Ultramatic Drive Tool suggested tool - assembly line-up arbor, fabrication | 23rd; (24th-54th) | |
Unit Numbers required for product reports, returns, etc. | 23rd |
SC = Service Counselor | SL = Service Letter | STB = Service Technical Bulletin | SSB = Studebaker Service Bulletin |
NOTE: These PDFs were created from High Quality Scans. It is recommended that you Right Click on the link(s) above and do a "Save Target As". This will download the PDF to your machine rather than trying to open and view it over the web.
Disclosures & Disclaimers
Though previously published elsewhere, this work is provided with my full permission for display on the PackardInfo.com website and the personal use of visitors to that site. Any other unauthorized use, however, is expressly prohibited and may be subject to prosecution.
Also, because this index was compiled from documents published by the factory, neither the author nor PackardInfo.com are responsible for errors in content arising from source information.
