This workshop service repair manual covers the Thomas Skid Steer Tractor models 95, 105, and 115. These machines are engineered for robust performance in construction and industrial applications, built with a focus on reliability and durability. Their design prioritizes operational efficiency and operator safety, featuring a strong main frame, a capable hydraulic system, and a dependable hydrostatic drive system. The Thomas Skid Steer Tractor is a workhorse, designed to handle demanding tasks with precision and power, making it a valuable asset for various professional environments.
This comprehensive manual provides detailed information essential for the maintenance, repair, and troubleshooting of your Thomas Skid Steer Tractor. It covers critical systems including the Hydraulic System, Hydrostatic Drive System, Final Drive, Controls, Electrical System, Main Frame, and Engine. Within these sections, you will find diagnostic procedures, component replacement instructions, system operation guidance, and general maintenance specifications. This resource is designed to assist owners, mechanics, and technicians in keeping their equipment in optimal working condition, ensuring longevity and peak performance.
THOMAS 95 105 115 SKID STEER TRACTOR WORKSHOP SERVICE REPAIR MANUAL
TABLE OF CONTENTS
Section 1 Hydraulic System
Hydraulic Circuit ...............................................................................1.1
Gear Pump .........................................................................................1.2
Control Valve .....................................................................................1.3
Hydraulic Cylinders...........................................................................1.4
Oil Filter.............................................................................................1.5
Oil Cooler ..........................................................................................1.6
Oil Reservoir ......................................................................................1.7
Trouble Shooting ...............................................................................1.8
Torque Chart ......................................................................................1.9
Section 2 Hydrostatic Drive System
Hydrostatic Drive Circuit ..................................................................2.1
Specifications.....................................................................................2.2
General Information...........................................................................2.3
Trouble Shooting ...............................................................................2.4
Pressure Tests.....................................................................................2.5
Towing Procedure..............................................................................2.6
Flushing The Hydraulic System ........................................................2.7
Start - up Procedure ...........................................................................2.8
Gear Pump Replacement ...................................................................2.9
Tandem Pump Replacement ..............................................................2.10
Tandem Pump Parts Diagram ............................................................2.11
Drive Motor .......................................................................................2.12
Section 3 Final Drive
Specifications and Maintenance ........................................................3.1
Lubrication.........................................................................................3.2
Drive Chain........................................................................................3.3
Drive Motor Sprocket........................................................................3.4
Axle Assembly...................................................................................3.5
Trouble Shooting ...............................................................................3.6
Section 4 Controls
Steering ..............................................................................................4.1
Foot Pedals.........................................................................................4.2
Hand Controls....................................................................................4.3
Throttle ...............................................................................................4.4
Restraint Bar ......................................................................................4.5
Parking Brake ....................................................................................4.6
Trouble Shooting ...............................................................................4.7
Section 5 Electrical
General Information...........................................................................5.1
Wiring Schematics .............................................................................5.2
Instrumentation ..................................................................................5.3
Ignition Switch...................................................................................5.4
Engine Glow Plugs............................................................................5.5
Battery................................................................................................5.6
Electrical Panel ..................................................................................5.7
Starter Circuit.....................................................................................5.8
Charging Circuit ................................................................................5.9
Safety Circuit .....................................................................................5.10
Cooling Fan Circuit ..........................................................................5.11
Auxiliary Circuit ................................................................................5.12
Accessory Circuit...............................................................................5.13
Trouble Shooting ...............................................................................5.14
Section 6 Main Frame
Quick - Tach.......................................................................................6.1
Boom Arms ........................................................................................6.2
Boom Support ....................................................................................6.3
ROPS .................................................................................................6.4
Rear Door...........................................................................................6.5
Section 7 Engine
Maintenance.......................................................................................7.1
Cylinder Head....................................................................................7.2
Replacement.......................................................................................7.3
Specifications.....................................................................................7.4
Trouble Shooting ...............................................................................7.5
Section 8 Maintenance & Specifications
Maintenance.......................................................................................8.1
Trouble Shooting ...............................................................................8.2
Special Tools ......................................................................................8.3
Specifications.....................................................................................8.4
Conversion Charts..............................................................................8.5
THOMAS 95 105 115 SKID STEER TRACTOR WORKSHOP SERVICE REPAIR MANUAL
TABLE OF CONTENTS
Section 1 Hydraulic System
Hydraulic Circuit ...............................................................................1.1
Gear Pump .........................................................................................1.2
Control Valve .....................................................................................1.3
Hydraulic Cylinders...........................................................................1.4
Oil Filter.............................................................................................1.5
Oil Cooler ..........................................................................................1.6
Oil Reservoir ......................................................................................1.7
Trouble Shooting ...............................................................................1.8
Torque Chart ......................................................................................1.9
Section 2 Hydrostatic Drive System
Hydrostatic Drive Circuit ..................................................................2.1
Specifications.....................................................................................2.2
General Information...........................................................................2.3
Trouble Shooting ...............................................................................2.4
Pressure Tests.....................................................................................2.5
Towing Procedure..............................................................................2.6
Flushing The Hydraulic System ........................................................2.7
Start - up Procedure ...........................................................................2.8
Gear Pump Replacement ...................................................................2.9
Tandem Pump Replacement ..............................................................2.10
Tandem Pump Parts Diagram ............................................................2.11
Drive Motor .......................................................................................2.12
Section 3 Final Drive
Specifications and Maintenance ........................................................3.1
Lubrication.........................................................................................3.2
Drive Chain........................................................................................3.3
Drive Motor Sprocket........................................................................3.4
Axle Assembly...................................................................................3.5
Trouble Shooting ...............................................................................3.6
Section 4 Controls
Steering ..............................................................................................4.1
Foot Pedals.........................................................................................4.2
Hand Controls....................................................................................4.3
Throttle ...............................................................................................4.4
Restraint Bar ......................................................................................4.5
Parking Brake ....................................................................................4.6
Trouble Shooting ...............................................................................4.7
Section 5 Electrical
General Information...........................................................................5.1
Wiring Schematics .............................................................................5.2
Instrumentation ..................................................................................5.3
Ignition Switch...................................................................................5.4
Engine Glow Plugs............................................................................5.5
Battery................................................................................................5.6
Electrical Panel ..................................................................................5.7
Starter Circuit.....................................................................................5.8
Charging Circuit ................................................................................5.9
Safety Circuit .....................................................................................5.10
Cooling Fan Circuit ..........................................................................5.11
Auxiliary Circuit ................................................................................5.12
Accessory Circuit...............................................................................5.13
Trouble Shooting ...............................................................................5.14
Section 6 Main Frame
Quick - Tach.......................................................................................6.1
Boom Arms ........................................................................................6.2
Boom Support ....................................................................................6.3
ROPS .................................................................................................6.4
Rear Door...........................................................................................6.5
Section 7 Engine
Maintenance.......................................................................................7.1
Cylinder Head....................................................................................7.2
Replacement.......................................................................................7.3
Specifications.....................................................................................7.4
Trouble Shooting ...............................................................................7.5
Section 8 Maintenance & Specifications
Maintenance.......................................................................................8.1
Trouble Shooting ...............................................................................8.2
Special Tools ......................................................................................8.3
Specifications.....................................................................................8.4
Conversion Charts..............................................................................8.5
