TRUCK SERVICE MANUAL
GENERAL INFORMATION
Para 1-6
SPECIFICATIONS AND DATA CHART
HT 750CRD
Rating:
Input torque (net installed) .
............................................................
1130 lb ft.
(1532 Nm) (max)
Input speed (max).
.........................................................................
3000 rpm
Input horsepower (net
installed) .
.................................................................................
400
298 kW (max)
Mounting:
Engine.
...........................................................
SAE 1 automotive housing
Vehicle .
..........................................................
Six-hole SAE 2 mounting pad
(Earlier models have
four-hole SAE 1 mounting pad)
Drive.
..............................................................
Flex disk
Rotation:
Input.
..............................................................
Clockwise
Output (in forward ranges).
............................
Clockwise
Torque converter:
Type.
..............................................................
Single-stage, poly-phase, 3 element
Converter model .
...........................................
TC 470
Torque multiplication ratio
(at stall).
...................................................
2.8:1
Lockup clutch.
................................................
Automatic in selected ranges
Gear Data.
............................................................
Planetary straight-cut spur, constant mesh
Clutches.
...............................................................
Oil cooled, hydraulically actuator, spring released, self-
compensating for wear
Sump .
...................................................................
Integral
Oil systems:
Oil pump (input) .
............................................
Engine driven, positive displacement
Oil pump (scavenge).
.....................................
Engine driven, positive displacement, spur gear type.
Oil filter.
..........................................................
External, Suction screen (in sump)
Oil capacity (less
external circuits) .
.....................................
8 US gal (30.3 litres) (approx.)
Initial fill (as received
from factory) .
...........................................
6 US gal (22.7 litres) (approx.)
Refill (oil and filter
changed) .
..................................................
6
5 US gal (24
6 litres) (approx.)
Oil type.
..........................................................
Above -30°F (-34°C) hydraulic transmission fluid type
DEXRON Below -30°F (-34°C), hydraulic trans-
mission fluid type DEXRON -auxiliary preheat
required to raise temperature in sump and external
circuit.
Oil temperature:.
...................................................
Converter-Out
(To Cooler)
Sump
Converter Operation .
.....................................
300°F (149°C)
250°F (121°C)
Lockup Operation.
..........................................
250°F (121°C)
250°F (121°C)
Dexron is a registered trademark of General Motors.
676
TRANSMISSION