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Power-Shift Transmissions

Vehicle

The TD61-1180 and TD61-2619 AWD transmission systems offer rugged, high-horsepower, all-wheel-drive performance and dependability. Vehicles get on task quickly and get the job done.

Twin Disc off-highway vehicular transmission systems offer all-wheel drive traction, fast acceleration and unparalleled ease of operation.

TD61-2619 AWD

TD61-1180 AWD

TD61-1180 ARFF

TD61-1179 ARFF

TAD81-4001 ARFF

VEHICLE

TAD81-4001 ARFF

Description

TAD81-4001 UP TO 800 HP (596 KW)

The 4001 transmission system consists of an engine-mounted 17 or 18 inch type 8 torque converter, an 8 speed power-shift transmission and the advanced TDEC-500 electronic control system.

Specifications
  • Maximum gross input power (ARFF only) 800 hp (596 kW) @ 1900 RPM
  • Maximum gross input torque 2618 lb-ft (3550Nm)
  • Maximum input speed 1900 RPM
  • Weight 2455 lbs. (1114 kg)
  • Maximum oil temperature at converter outlet 250° F
  • Sump capacity 13 USG (49.2 liters)
  • Cooling required 25% of GHP
  • Cooling pump capacity 45 GPM @ 1900 RPM
  • Remote mounted
  • 30-70, 50-50, 70-30 biasing differential with differential lock
  • TAD81-4001 output rotation same as engine for forward

Consult Twin Disc regarding availability and specifications for optional outputs, PTOs and accessories.

RATIOS

1st

2nd

3rd

4th

5th

6th

7th

8th

Reverse

Overall

6.50

4.02

2.95

2.07

1.55

1.07

0.81

0.71

5.82

9.17

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