Allison B 400 - Page 191

WTEC II ELECTRONIC CONTROLS TROUBLESHOOTING MANUAL
B–6 Copyright © 1998 General Motors Corp.
APPENDIX B — CHECKING CLUTCH PRESSURES
MD 3070 —
High Speed
(cont’d)
LowC C3 C6 1500–2300
[218–334]
1480–2300
[215–334]
1400–1600
[200–232]
1C C1 C5 1500–2100
[218–305]
1480–2100
[215–305]
1400–1600
[200–232]
2C C1 C4 1500–2100
[218–305]
1480–2100
[215–305]
1400–1600
[200–232]
2L C1 C4 LU 1000–1400
[145–203]
980–1400
[142–203]
980–1400
[142–203]
1400–1600
[200–232]
3C C1 C3 1500–2100
[218–305]
1480–2100
[215–305]
1400–1600
[200–232]
3L C1 C3 LU 1000–1400
[145–203]
980–1400
[142–203]
980–1400
[142–203]
1400–1600
[200–232]
4C C1 C2 1500–2100
[218–305]
1480–2100
[215–305]
1400–1600
[200–232]
4L C1 C2 LU 1000–1400
[145–203]
980–1400
[142–203]
980–1400
[142–203]
1400–1600
[200–232]
5C C2 C3 1150–1650
[167–239]
1130–1650
[164–239]
1400–1600
[200–232]
5L C2 C3 LU 900–1300
[131–189]
880–1300
[128–189]
880–1300
[128–189]
1400–1600
[200–232]
6C C2 C4 1150–1650
[167–239]
1130–1650
[164–239]
1400–1600
[200–232]
6L C2 C4 LU 900–1300
[131–189]
880–1300
[128–189]
880–1300
[128–189]
1400–1600
[200–232]
HD — Idle 580–620 Neutral C5 1500–2070
[218–300]
Reverse C3 C5 1500–2070
[218–300]
1C C1 C5 1300–1800
[189–260]
2C C1 C4 1300–1800
[189–260]
Table B–2. Main Pressure and Clutch Pressure Specifications
(Sump Fluid Temperature Same as in Table B–1) (cont’d)
Transmission
Model/Test
Type
Engine
rpm Range
Clutches
Applied
Main Press.
Spec
kPa/[psi]
Range Clutch
Press. Spec*
kPa/[psi]
LU Clutch
Press. Spec
kPa/[psi]
D’BOX
MAIN
Press. Spec
kPa/[psi]
* Subtract clutch pressure from main pressure; the difference must fall within the specifications given (unless a pressure
range is supplied).