TM-9-2520-234-35
POWER TRAIN ASSEMBLY; ALLISON MODEL XTG411-2A
TECHNICAL MANUAL; FIELD AND DEPOT MAINTENANCE MANUAL
JULY 1962
TM-9-2520-234-35 - Page 36 of 323
CHAP 1, SEC II
GENERAL DESCRIPTION AND DATA
PAR 7
Table I. TABULATED DATA - Continued
Torque converter . . . . . . . . . . . . . . . . . . . . . . . . . 3-element, single-stage, polyphase,
with automatic lockup clutch
Clutches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Multiplate, wet, hydraulic-applied
Gearing (constant mesh throughout):
Input transfer gearing . . . . . . . . . . . . . . . . . .
6-pitch, straight-cut, in-line spur
Range gearing
Low and reverse ranges . . . . . . . . . . . . . . .
8-pitch, straight-cut, planetary
Intermediate range . . . . . . . . . . . . . . . . . .
10-pitch, straight-cut, planetary
Output transfer gearing . . . . . . . . . . . . . . . . .
4-pitch, straight-cut, in-line spur
Steer gearing . . . . . . . . . . . . . . . . . . . . . . . . .
S-pitch, straight-cut, planetary
Output drive gearing . . . . . . . . . . . . . . . . . . .
5-pitch, straight-cut, planetary
Brakes (service and parking) . . . . . . . . . . . . . . . . .
Multiplate, wet, mechanically
applied, sintered bronze on steel
Control (range selection, steering, brakes):
External . . . . . . . . . . . . . . . . . . . . . . . . . . . . Manual
Internal (except brakes) . . . . . . . . . . . . . . . . . Hydraulic
Torque multiplication ratios:
XTG 411-2A
XTG 411-4
Torque converter (maximum at stall). . . . . . . .
3.3:1
3.2:1
Complete power train (input transfer section
and main transmission section). . . . . . . . . . See table below
Power train ratios:
Gear
Input
XTG
411-2A
XTG
411-4
output
Steer
Total
Range
Torque
Torque
Transfer Range
Transfer Planetary Mechanical Converter
Converter
First
0.611:1
4.00:1
1.30:1
1.477:1
4.690:1
3.3:1
3.2:1
Second
0.611:1
4.00:1
1.30:1
1.000:1
3.178:1
3.3:1
3.2:1
Third
0.611:1
2.00:1
1.30:1
1.000:1
1.589:1
3.3:1
3.2:1
Fourth
0.611:1
1.00:1
1.30:1
1.000:1
0.794:1
3.3:1
3.2:1
Reverse 1 0.611:1
4.77:1
1.30:1
1.477:1
5.60:1
3.3:1
3.2:1
Reverse 2 0.611:1
4.77:1
1.30:1
1.000:1
3.79:1
3.3:1
3.2:1
Steering:
Type:
First, reverse 1 ranges . . . . . . . . . . . . . . . Clutch brake
Third, fourth, reverse 2 ranges. . . . . . . . . . Geared
Second. . . . . . . . . . . . . . . . . . . . . . . . . . .
Optional
Ratios:
Clutch brake . . . . . . . . . . . . . . . . . . . . . .
Infinite
Geared . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.477.1 maximum
Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Manually controlled by operator,
steer brakes and clutches
hydraulically applied
8
Change 2
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