Clicking the "Continue" button below will launch the HMMWV IETM.  The "Select Manual to Open" screen will appear.  Select the following in sequence from the displayed list:

1.  HMMWV-20 UNIT LEVEL MAINTENANCE - HMMWV (C:)

2.  SHELTER CARRIER (M1113) AND UP-ARMORED (M1114)

3.  TRUCK, UTILITY:  S250 SHELTER CARRIER, 4X4 M1113)
               (2320-01-412-0143) (B6B)

Following this, the "Please Enter Administrative Information" dialog box is displayed.  Enter your PIN as the first letter of your last name followed by the last four numbers of your social security number (the other entries don't matter, but there must be something in them).  Then click on the OK button.  