Allison Transmission AT 1545P Service Manual

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2 – 3 Shift
Signal Valve
2 – 3
Relay Valve
1 – 2 Shift
Signal Valve
1 – 2
Relay Valve
3 – 4
Relay Valve
3 – 4 Shift
Signal Valve
Manual
Selector
Valve
R
N
1 – 4
1 – 3
1 – 2
1
Governor
Valve
Hold
Regulator
Valve
Trimmer
Regulator
Valve
Lockup Shift
Valve
Modulator
Valve
Main Pressure
Regulator Valve
Oil Cooler
Priority
Valve
1st Clutch
Trimmer Valve
Trim Boost
Accumulator
ORIFICE
3rd Clutch
Trimmer Valve
ORIFICES
2nd Clutch
Trimmer Valve
ORIFICE
4th Clutch
Trimmer Valve
ORIFICE
MAIN PRESSURE
CONVERTER–IN
CONVERTER–OUT
LUBRICATION
EXHAUST OR SUMP
GOVERNOR PRESSURE
MODULATOR PRESSURE
NEUTRAL, FORWARD REGULATOR
FIRST CLUTCH PRESSURE
TRIMMER REGULATOR PRESSURE
0.090"
ORIFICE
Main
Pressure
Tap
Neutral
Start
Switch
ORIFICE
ORIFICE
ORIFICE
Reverse
Signal Switch
D1
D2
D3
D4
FILTER
SUMP
Oil
Pump
SECOND CLUTCH PRESSURE
LUBRICATION
THIRD CLUTCH PRESSURE
MAIN PRESSURE
LOCKUP PRESSURE
CONVERTER – OUT
MAIN PRESSURE
MAIN PRESSURE
FORWARD REGULATOR PRESSURE
DRIVE–3 PRESSURE
DRIVE–2 PRESSURE
FIRST TRIMMER
GOVERNOR PRESSURE
FIRST TRIMMER
REVERSE
REVERSE
FORWARD
CLUTCH
PRESSURE
FOURTH CLUTCH PRESSURE
V01295.02
HOLD FEED
FORWARD CLUTCH PRESSURE
MODULATOR PRESSURE
AT 1542 / 1545
REVERSE
DRIVE–1
PRESSURE
CONVERTER – IN
CONVERTER – OUT
CONVERTER – IN
FIRST CLUTCH PRESSURE
FIRST CLUTCH PRESSURE
BYPASS
ORIFICE
Vacuum
Modulator
To
Engine
Vacuum
ORIFICE
TUBE CONNECTION
TUBE CONNECTION
FILTER
SCREEN
FIRST FEED
CLUTCH FEED
BYPASS
ORIFICES
ORIFICE
ORIFICE
ORIFICE
TUBE CONNECTION
ORIFICE
ORIFICE
Forward
Clutch
Fourth
Clutch
Third
Clutch
Second
Clutch
First
Clutch
Lockup
Pressure
Tap
F
OLDOUT
6
Foldout 6. AT 1500 Series Transmissions — Hydraulic Schematic

Allison Transmission AT 1545P Specifications

General

Brand	Allison Transmission
Model	AT 1545P
Category	Microphone system
Language	English