Twin Disc TD-61-1180 Power Shift Transmission Service Manual (1019864)
Original price was: $75.00.$25.95Current price is: $25.95.
Factory service manual for Twin Disc TD-61-1180 Power Shift Transmission used in airport rescue and firefighting (ARFF) vehicles. Includes complete sections on description, operation, electronic control (ETA-28L), torque converter 8-MLW-1755-1, maintenance, troubleshooting, and hydraulic schematics. A must-have for professional repair and overhaul of Twin Disc drivetrains.
Description
Twin Disc TD-61-1180 Power Shift Transmission Service Manual (1019864) – PDF DOWNLOAD
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Description
📘 Overview
This factory-issued Twin Disc Service Manual (Document No. 1019864, April 2000) provides comprehensive procedures for maintenance, operation, and repair of the TD-61-1180 transmission system with 8-MLW-1755-1 torque converter and ETA-28L electronic control, primarily installed in ARFF (Airport Rescue Firefighting) and other heavy-duty off-highway vehicles.
It includes complete engineering drawings, diagnostic data, electronic wiring schematics, hydraulic circuit diagrams, and troubleshooting procedures for both mechanical and control systems
📑 Main Sections
1. Introduction
Safety precautions & lifting procedures
Warranty terms and flat-rate service hours
Replacement parts and authorized service network
2. Description & Specifications
TD-61-1180 power shift transmission overview
Model decoding and BOM identification
Torque converter 8-MLW-1755-1 construction
ETA-28L electronic control unit (ECU) features
System pressures, temperature ranges, and torque data
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3. Operation
Startup, oil level checks, and system inspection
Power flow, clutch operation, and torque multiplication
Detailed ETA-28L control logic: ranges D1–D6, Reverse, Neutral
Differential lock operation and auto-slip detection
PTO operation modes: Drive, Pump-and-Roll, Stationary, Manual Override, Diagnostic
Illustrated diagrams showing hydraulic and electrical layouts
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4. Preventive Maintenance
Scheduled inspections and service intervals
Hydraulic pressure checks, oil temperature guidelines
Filter maintenance and contamination control
5. Troubleshooting
Step-by-step fault diagnosis for transmission, converter, and control system
Pressure and flow test kit setup
Diagnostic codes and corrective actions
6. Engineering Drawings
Hydraulic and electronic schematics
Wiring layout for ETA-28L controller
Sectional assembly diagrams with test ports and solenoid labeling
📊 File Details
| Detail | Specification |
|---|---|
| Manual Name | Twin Disc Power Shift Transmission System Service Manual |
| Models Covered | TD-61-1179 / TD-61-1180, 8-MLW-1755-1 Torque Converter, ETA-28L Control |
| Application | Airport Rescue & Fire Fighting Vehicles, Heavy-Duty Off-Highway Units |
| Edition / Year | April 2000 |
| Language | English |
| Format | PDF (fully searchable, factory original) |
| No. of Pages | ~141 |
| Quality | OEM scan with diagrams, tables, and pressure data |
💡 Benefits of This Manual
Original Twin Disc factory procedures for overhaul, disassembly, and diagnostics.
Includes electronic control schematics for ETA-28L and complete hydraulic flow diagrams.
Essential for technicians, workshops, and ARFF fleet engineers maintaining TD-61-series drivetrains.
Features systematic troubleshooting charts and flat-rate labor hour references for cost estimation.
🧠 Recommended For
Fleet maintenance supervisors, heavy-equipment service shops, and OEM repair engineers handling Twin Disc transmissions in fire-rescue, marine, or industrial applications.
