Workhorse ALLISON 1000MH, Service Manual

Page: 12 / 529

WORKHORSE CUSTOM CHASSIS
Service Manual
2007 W Series
SECTION
7.2
PAGE
12
Automatic Transmission – Allison
2007 W Series Chassis
© 2006 Workhorse Custom Chassis — All Rights Reserved
WSM082106
Solenoid and Clutch Chart (Normal Mode)
Range
Status Logic
State
Clutch to
Line
Pressure Control Solenoids Shift Solenoids TCC
Sol.
PCS1 PCS2 SS1 SS2 SS3
Downshift 1-N -- De-energized; Low and Reverse
Clutch Applied
Energized; 1-2-3-4 Clutch
Trimming Off
ON ON ON OFF
Steady State 1 1-2-3-4
Clutch
De-energized; Low and Reverse
Clutch Applied
De-energized; 2-6 Clutch
Exhausted
OFF ON OFF OFF
Upshift 1-2 1-2-3-4
Clutch
Energized; Low and Reverse
Clutch Trimming Off
Energized; 2-6 Clutch Trimming
On
OFF ON OFF OFF
Downshift 2-1 1-2-3-4
Clutch
Energized; Low and Reverse
Clutch Trimming On
Energized; 2-6 Clutch Trimming
Off
OFF ON OFF OFF
Steady State 2 1-2-3-4
Clutch
Energized; 3rd, 5th, and Reverse
Clutch Exhausted
Energized; 2-6 Clutch Applied OFF OFF OFF OFF
Upshift 2-3 1-2-3-4
Clutch
De-energized; 3rd, 5th, and
Reverse Clutch Trimming On
De-energized; 2-6 Clutch
Trimming Off
OFF OFF OFF OFF
Downshift 3-2 1-2-3-4
Clutch
De-energized; 3rd, 5th, and
Reverse Clutch Trimming Off
De-energized; 2-6 Clutch
Trimming On
OFF OFF OFF OFF
Steady State 3 1-2-3-4
Clutch
De-energized; 3rd, 5th, and
Reverse Clutch Applied
De-energized; 4-5-6 Clutch
Exhausted
ON OFF OFF OFF
Upshift 3-4 1-2-3-4
Clutch
Energized; 3rd, 5th, and Reverse
Clutch Trimming Off
Energized; 4-5-6 Clutch Trimming
On
ON OFF OFF ON
Downshift 4-3 1-2-3-4
Clutch
Energized; 3rd, 5th, and Reverse
Clutch Trimming On
Energized; 4-5-6 Clutch Trimming
Off
ON OFF OFF OFF
Steady State 4 4-5-6
Clutch
Energized; 3rd, 5th, and Reverse
Clutch Exhausted
Energized; 1-2-3-4 Clutch
Applied
ON OFF ON ON
Upshift 4-5 4-5-6
Clutch
De-energized; 3rd, 5th, and
Reverse Clutch Trimming On
De-energized; 1-2-3-4 Clutch
Trimming Off
ON OFF ON ON
Downshift 5-4 4-5-6
Clutch
De-energized; 3rd, 5th, and
Reverse Clutch Trimming Off
De-energized; 1-2-3-4 Clutch
Trimming On
ON OFF ON ON
Steady State 5 4-5-6
Clutch
De-energized; 3rd, 5th, and
Reverse Clutch Applied
De-energized; 2-6 Clutch
Exhausted
OFF OFF ON ON
Upshift 5-6 4-5-6
Clutch
Energized; 3rd, 5th, and Reverse
Clutch Trimming Off
Energized; 2-6 Clutch Trimming
On
OFF OFF ON ON
Downshift 6-5 4-5-6
Clutch
De-energized; 3rd, 5th, and
Reverse Clutch Trimming On
De-energized; 2-6 Clutch
Trimming Off
OFF OFF ON ON
Steady State 6 4-5-6
Clutch
Energized; 3rd, 5th, and Reverse
Clutch Exhausted
Energized; 2-6 Clutch Applied OFF OFF ON ON