Allison Transmission MT4108EN 3700 SP 4th Generation Controls Mechanic’s Tips Manual – PDF DOWNLOAD

Description

Allison Transmission MT4108EN 3700 SP 4th Generation Controls Mechanic’s Tips Manual – PDF DOWNLOAD

DESCRIPTION:

Allison Transmission MT4108EN 3700 SP 4th Generation Controls Mechanic’s Tips Manual – PDF DOWNLOAD

ABOUT THIS MANUAL :

• This manual is a mechanic’s reference for maintaining, removing, or installing the
  3700 SP transmission with Allison 4th Generation Controls. All features of the
  transmission and the vehicle involved in installation procedures are discussed. The
  information presented will help the mechanic maintain, remove, or install the
  transmission in a manner that assures satisfactory operation and long service life.
  For additional detailed information, refer to the appropriate transmission service
  manual and electronic controls troubleshooting manual.

TABLE OF CONTENTS:

Allison Transmission MT4108EN 3700 SP 4th Generation Controls Mechanic’s Tips Manual – PDF DOWNLOAD

MT4108EN………………………………………………………………… 1
TITLE PAGE…………………………………………………………… 2
TABLE OF CONTENTS…………………………………………………….. 4
TRADEMARK USAGE………………………………………………………. 6
WARNINGS, CAUTIONS, NOTES……………………………………………… 7
SECTION I – INTRODUCTION………………………………………………. 8
1–1. ABOUT THIS MANUAL…………………………………………….. 8
Figure 1–1. 7-Speed With Transfer Case, Close Ratio,Power Takeoff…… 9
Figure 1–2. 3700 SP…………………………………………….10
Figure 1–3. 3700 SP Transmission—Bottom View………………………11
Figure 1–4. 3700 SP Transfer Case—Front View………………………11
SECTION II – PREVENTIVE MAINTENANCE……………………………………..12
2–1. PERIODIC INSPECTION AND CARE……………………………………12
2–2. IMPORTANCE OF PROPER TRANSMISSION FLUID LEVEL…………………….13
2–3. TRANSMISSION FLUID CHECK……………………………………….13
Figure 2–1. Standard 3700 SP Dipstick Markings…………………….15
2–4. KEEPING FLUID CLEAN……………………………………………15
2–5. FLUID RECOMMENDATIONS………………………………………….16
Table 2–1. Transmission Fluid Operating Temperature Requirements…….17
2–6. FLUID AND FILTER CHANGE INTERVAL RECOMMENDATIONS………………….17
Table 2–2. Recommended Fluid/Filter Change for 3700 SP Transmission….18
Table 2–3. Fluid Oxidation Measurement Limits……………………..19
2–7. TRANSMISSION FLUID CONTAMINATION………………………………..19
2–8. TRANSMISSION FLUID AND FILTER CHANGE PROCEDURE……………………20
Figure 2–2. Location of Filters for Service……………………….21
Table 2–4. 3700 SP Transmission Fluid Capacity…………………….22
2–9. FLUID LEAK DIAGNOSIS…………………………………………..22
2–10. BREATHER…………………………………………………….24
2–11. TROUBLESHOOTING………………………………………………25
Table 2–5. Diagnostic Codes Overview……………………………..26
Figure 2–3. Shift Selector………………………………………29
2–12. TRANSMISSION STALL TEST……………………………………….31
SECTION III – REMOVING TRANSMISSION……………………………………..37
3–1. DRAINING TRANSMISSION………………………………………….37
3–2. DISCONNECTING CONTROLS…………………………………………37
Figure 3–1. 3700 SP Disconnect Locations………………………….38
3–3. UNCOUPLING FROM DRIVELINE, ENGINE, AND VEHICLE……………………38
3–4. REMOVING THE TRANSMISSION………………………………………39
3–5. REMOVING OUTPUT YOKE…………………………………………..39
SECTION IV – TRANSMISSION PREPARATION……………………………………40
4–1. CHECKING INPUT COMPONENTS………………………………………40
4–2. INSTALLING OUTPUT YOKE…………………………………………40
4–3. INSTALLING PTO………………………………………………..41
4–4. INSTALLING SCAVENGE PUMP……………………………………….41
4–5. INSTALLING FILL TUBE AND SEAL…………………………………..42
4–6. CHECKING PLUGS AND OPENINGS…………………………………….42
SECTION V – PREPARING VEHICLE FOR TRANSMISSION INSTALLATION………………..43
5–1. ENGINE, TRANSMISSION ADAPTATION REQUIREMENTS……………………..43
Figure 5–1. 3700 SP Engine Adaptation…………………………….44
Figure 5–2. Converter Axial Location Measurement…………………..45
5–2. CHECKING FLEXPLATE DRIVE ASSEMBLY……………………………….45
Figure 5–3. Arrangement of Adaptation Components…………………..46
5–3. CHASSIS AND DRIVELINE INSPECTION………………………………..46
5–4. COOLER, FILTER, AND LINES………………………………………47
5–5. CHECKING CONTROLS……………………………………………..47
5–4. COOLER, FILTER, AND LINES………………………………………47
5–5. CHECKING CONTROLS……………………………………………..47
Figure 5–4. Throttle Position Determination Diagram………………..49
Figure 5–5. Hitch-Pin Throttle Position Sensor Installation Diagram….50
SECTION VI – INSTALLING TRANSMISSION INTO VEHICLE…………………………52
6–1. HANDLING……………………………………………………..52
6–2. MOUNTING TO ENGINE…………………………………………….52
6–3. INSTALLING TRANSMISSION MOUNTING COMPONENTS………………………53
6–4. COUPLING TO DRIVELINE………………………………………….53
6–5. CONNECTING POWER TAKEOFF CONTROLS……………………………….53
Figure 6–1. Torque Values of Typical Fluid Cooler Lines…………….54
6–6. CONNECTING COOLER……………………………………………..54
6–7. CONNECTING ELECTRICAL COMPONENTS………………………………..55
6–8. CONNECTING SPEEDOMETER DRIVE……………………………………56
6–9. FILLING HYDRAULIC SYSTEM……………………………………….56
6–10. INSTALLATION CHECKLIST………………………………………..56
SECTION VII – CHECKS AND ADJUSTMENTS…………………………………….57
7–1. INSTALLATION CHECKLIST…………………………………………57
7–2. ROAD TEST AND VEHICLE OPERATION CHECKLIST………………………..59
SECTION VIII – CUSTOMER SERVICE…………………………………………61
8–1. OWNER ASSISTANCE………………………………………………61
8–2. SERVICE LITERATURE…………………………………………….61
Table 8–1. 3700 SP Service Literature…………………………….62

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ALLISON TRANSMISSION MT4108EN 3700 SP 4TH GENERATION CONTROLS MECHANIC’S TIPS MANUAL – PDF DOWNLOAD:

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