Allison B 400 - Page 190

Copyright © 1998 General Motors Corp. B–5
APPENDIX B — CHECKING CLUTCH PRESSURES
WTEC II ELECTRONIC CONTROLS TROUBLESHOOTING MANUAL
MD —
High Speed
(except 3070)
(cont’d)
3C C1 C3 1500–2100
[218–305]
0–80 (C1)
[0–11.6]
0–35 (C3)
[0–5]
3L C1 C3 LU 1000–1400
[145–203]
0–80 (C1)
[0–11.6]
0–35 (C3)
[0–5]
950–1400
[138–203]
4C C1 C2 1500–2100
[218–305]
0–80 (C1)
[0–11.6]
0–80 (C2)
[0–11.6]
4L C1 C2 LU 1000–1400
[145–203]
0–80 (C1)
[0–11.6]
0–80 (C2)
[0–11.6]
950–1400
[138–203]
5C C2 C3 1150–1650
[167–239]
0–80 (C2)
[0–11.6]
0–35 (C3)
[0–5]
5L C2 C3 LU 900–1300
[131–189]
0–80 (C2)
[0–11.6]
0–35 (C3)
[0–5]
850–1300
[124–189]
6C C2 C4 1150–1650
[167–239]
0–80 (C2)
[0–11.6]
0–35 (C4)
[0–5]
6L C2 C4 LU 900–1300
[131–189]
0–80 (C2)
[0–11.6]
0–35 (C4)
[0–5]
850–1300
[124–189]
MD 3070 —
High Speed
Neutral C5 1500–2300
[218–334]
1480–2300
[215–334]
1400–1600
[200–232]
Reverse C3 C5 1500–2300
[218–334]
1480–2300
[215–334]
1400–1600
[200–232]
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).