This official Allison 1000 2000 maintenance manual (publication JA3664EN) provides in-chassis service procedures for the 1000 Series and 2000 Series automatic transmissions. It covers troubleshooting, fluid leak diagnosis, selector shaft and parking brake service, seal replacement, control valve work, and cooler flushing across 78 fully illustrated pages.
Official Allison 1000 2000 maintenance document details
| Brand | Allison Transmission |
| Model coverage | 1000 Series (EVS, HS, MH, PTS, RDS, SP), 2000 Series (2100, 2200, 2500 — EVS, HS, MH, PTS, RDS, SP), 2000 MH Series, 2400 Series, B 210, B 220 |
| System / Group | Transmission — In-Chassis Maintenance |
| Publication no. | JA3664EN / MT4108EN |
| Year / Revision | 2004 April 01 (printed 2004-05, copyright 2007) |
| Pages | 78 |
| File size | 1.1 MB |
| Format | |
| Language | English |
Document table of contents
- Section I — Troubleshooting: General troubleshooting information, performance complaint diagnosis, transmission stall test and neutral cool-down check, pressure schedule check
- Section II — Fluid Leak Diagnosis: Finding the leak
- Section III — Shift Selector and Cable/Linkage: Shift selector service, Neutral Start/Backup (NSBU) switch adjustment using special tool J 41364-A
- Section IV — Selector Shaft Seal Replacement: Removal and installation procedures
- Section V — Parking Brake: Adjustment, replacement, and burnishing
- Section VI — Component Replacement: Output flange/yoke, tachograph plug, speed sensor, PTO cover/gasket, cooler manifold gasket, rear seal, oil pan gasket, suction filter and seal, control valve components (solenoids, accumulators, retaining brackets), front seal, cooler flushing
- Section VII — Customer Service: Owner assistance and service literature references
Applicable truck models
This manual applies to all vocational vehicles equipped with Allison 1000 Series, 2100, 2200, 2500, 2000 MH, and 2400 Series automatic transmissions. Variant designations include EVS, HS, MH, PTS, RDS, and SP, plus the B 210 and B 220 bus models. The document references companion publications including Service Manual SM3191EN, Parts Catalog PC3062EN, Electronic Troubleshooting Manual TS3192EN, Principles of Operation PO3065EN, and Mechanic’s Tips MT3190EN. It also describes use of the Allison DOC For PC diagnostic tool for retrieving diagnostic trouble codes (DTCs) from the Transmission Control Module (TCM). For further technical resources, visit Allison Transmission official website.
Who needs this Allison 1000 2000 maintenance manual
Fleet mechanics, independent transmission shops, and workshop owners servicing vehicles with Allison 1000 or 2000 Series transmissions need this manual for correct in-chassis repair procedures, torque specifications, and troubleshooting tables. It is essential for tasks such as rear seal replacement, NSBU switch adjustment, control valve solenoid service, and cooler flushing without removing the transmission from the vehicle.
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