TM-9-2320-280-20 HMMWV Technical Manual Unit Maintenance Volume 1 Download
Page 121 of 890
2-12. GENERAL a. This section provides information to diagnose and correct malfunctions of the electrical/mechanical system. b. Principles of operation showing system operation can be found in chapter 1. It should be used as a reference when performing electrical/mechanical troubleshooting. c. Each malfunction symptom given for an individual component or system is followed by step(s) you should take to determine the cause and corrective action you must take to remedy the problem. d. Before taking any action to correct a possible malfunction, the following rules should be followed: (1) Question operator to obtain any information that might help you determine the cause of the problem. (2) Never over look the chance that the problem could be of simple origin. The problem could be corrected with minor adjustment. (3) Use all senses to observe and locate troubles. (4) Use test instruments or gauges to help you determine and isolate problem. (5) Always isolate the system where the malfunction occurs and then locate the defective component. (6) Use standard automotive theories and principles when troubleshooting the vehicles covered in this manual. e. The STE/ICE-R is an integral part of these troubleshooting procedures. It should be used whenever possible, although other options are given, when available. The Vehicle Identification Number (VIN) assigned to the M998 series vehicles is 21 (14 is the temporary VIN). On page 2-753, you will find information on STE/ICE-R description and operation. Use this information to become familiar with STE/ICE-R operation and the equipment contained in the test set. On page 2-763 you will find STE/ICE- R setup and internal checks. These must be performed prior to performing tests. TM 9-2320-280-20-1 2-30 Change 2 LUBRICATION TABLE (Cont’d) Section IV. ELECTRICAL/MECHANICAL SYSTEMS TROUBLESHOOTING EXPECTED USAGE FLUID/LUBRICANT CAPACITIES TEMPERATURE Transmission Dexron ® II or Dry: 11 qt (10.4 L) All Temperatures (3L80) Dexron ® III Drain & Refill: 6 qt (5.7 L) Except Arctic (4L80-E) Dexron ® III only Dry: 13.5 qt (12.8L) (Do not use Dexron ® II) Drain & Refill 7.7 qt (7.3 L) OEA Arctic Temperatures Transfer (218) Dexron ® II 3.5 qt (3.3 L) All Temperatures Case (242) or Dexron ® III 3.35 qt (3.17 L) Steering System Dexron ® II 1 qt (0.95 L) or Dexron ® III w/Cooler 1.25 qt (1.18 L) All Temperatures Geared Hub (4) Multipurpose Gear GO 80/90 1 pt ea. ( 0.47 L) All Temperatures Axles (2) Multipurpose Gear GO 80/90 2 qt ea. (1.9 L) All Temperatures Ball Joints, Tie Rod Ends, Pitman Arm, GAA Propeller Shafts, As Required All Temperatures etc. Hinges, Cables, and Linkages OE/HDO As Required All Temperatures