Bobcat T66 Compact Track Loader Service Repair Manual
This manual is applicable for the Bobcat T66 loader
Language English
Format: PDF
S/N B51V11001 & Above
S/N B4SB11001 & Above
Bobcat T66 Compact Track Loader Service Repair Manual – What’s Inside
If you own or maintain a Bobcat T66 Compact Track Loader, having the right service repair manual is essential. This manual is designed to help equipment owners, mechanics, and operators perform regular maintenance and complete repairs correctly and safely. Here’s a quick look at what you can expect inside:
All Service Manual includes Wiring and Hydraulic Schematics
Bobcat T66 Compact Track Loader Service Repair Manual
Operation and Maintenance Manual
The All Service Manual includes Wiring and Hydraulic Schematics
1. General Information
Covers model specifications, safety instructions, serial number locations, and recommended maintenance schedules.
2. Routine Maintenance Procedures
Step-by-step guides for oil changes, filter replacements, fluid checks, and daily/weekly inspections to keep your machine running smoothly.
3. Engine and Powertrain
Detailed instructions on troubleshooting, disassembly, and repair of the Bobcat T66 engine, fuel system, and hydrostatic drive components.
4. Hydraulic System
Explains hydraulic circuit diagrams, pressure testing procedures, and pump/motor service information.
5. Electrical System
Includes wiring diagrams, fuse locations, sensor testing procedures, and control system diagnostics.
6. Drive System & Tracks
Information about drive motors, sprockets, tensioning procedures, and undercarriage maintenance.
7. Lift Arm & Loader Components
Covers loader arm assembly, cylinders, couplers, and bucket attachment servicing.
8. Troubleshooting & Error Codes
Diagnostic charts for common problems with solutions to minimize downtime.
9. Torque Specifications & Technical Data
Lists all bolt torque specs, fluid capacities, and adjustment settings for precise repairs.
Bobcat T66 Compact Track Loader Service Repair Manual
Bobcat T66 MANUAL CONTENT:
SAFETY & MAINTENANCE. . . 10-01
HYDRAULIC SYSTEM. . . 20-01
HYDROSTATIC SYSTEM . . . 30-01
DRIVE SYSTEM. . . 40-01
MAINFRAME . . . 50-01
ELECTRICAL SYSTEM. . . 60-01
ENGINE SERVICE . . . 70-01
HEATING, VENTILATION, AND AIR CONDITIONING (HVAC) . . . 80-01
SPECIFICATIONS . . . SPEC-01
ALPHABETICAL INDEX. . .INDEX-01
Bobcat T66 service manual instructions are necessary before operating or servicing machine. Read and understand the Operation & Maintenance Manual, Operator s Handbook and signs (decals) on the machine. Follow warnings and instructions in the manuals when making repairs, adjustments or servicing. Check for correct function after adjustments, repairs or service. Untrained operators and failure to follow instructions can cause injury or death.
These manual is for the Bobcat T66 Track Loader. It provides necessary servicing and adjustment procedures for the Bobcat T66 Loader and its components and systems. Refer to the Operation & Maintenance Manual and service manual for operating instructions, repair, starting procedure, daily checks, etc.
Bobcat T66 Track Loader Repair Manual












