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Allison Transmission AT 540 - Table of Contents

Allison Transmission AT 540
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TABLE OF CONTENTS
Paragraph Description Page
Section I PREVENTIVE MAINTENANCE
1–1 Periodic Inspection and Care . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1–2 Importance of Proper Fluid Level . . . . . . . . . . . . . . . . . . . . . . . 1
1–3 Dipstick Markings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1–4 Fluid Check Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1–5 Keeping Fluid Clean . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1–6 Recommended Automatic Transmission Fluid
and Viscosity Grade. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1–7 Fluid and Filter Change Intervals. . . . . . . . . . . . . . . . . . . . . . . . 5
1–8 Fluid and Filter Change Procedure . . . . . . . . . . . . . . . . . . . . . . 6
1–9 Fluid Contamination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
1–10 Auxiliary Filter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1–11 Breather . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
1–12 Transmission Stall Test and Neutral
Cool–Down Check. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Section II REMOVING TRANSMISSION
2–1 Draining Transmission. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2–2 Disconnecting Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2–3 Uncoupling Engine From Driveline. . . . . . . . . . . . . . . . . . . . . 14
2–4 Removing Mounting Bolts. . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2–5 Removing Transmission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2–6 Repair Instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Section III PREPARING TRANSMISSION FOR INSTALLATION
3–1 Checking Input Components . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3–2 Checking Torque Converter Position. . . . . . . . . . . . . . . . . . . . 17
3–3 Installing Parking Brake and Output Flange . . . . . . . . . . . . . . 18
3–4 Installing Shift Selector Lever . . . . . . . . . . . . . . . . . . . . . . . . . 19
3–5 Installing Power Takeoff (PTO). . . . . . . . . . . . . . . . . . . . . . . . 20
3–6 Installing Shift Modulation Control. . . . . . . . . . . . . . . . . . . . . 21
3–7 Installing Fill Tube and Drain Plug . . . . . . . . . . . . . . . . . . . . . 22
3–8 Installing Neutral Start and Reverse Signal Switches . . . . . . . 23
3–9 Installing Retarder Controls. . . . . . . . . . . . . . . . . . . . . . . . . . . 23
3–10 Checking Breather . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

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