GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Isuzu 🢒 1999 🢒 Isuzu MD Steel Tilt (F Model) 🢒 Engine 🢒 Engine Electrical 🢒 Generator Replacement

Removal Procedure

    Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.

  1. Disconnect the negative battery cable. Refer to Battery Cable Replacement .
  2. Tilt the cab. Refer to Cab Tilting in General Information.
  3. Disconnect the wiring connectors from the back of the generator.
  4. Remove the drive belts.

    5. Object Number: 227236 Size: SH
  5. Remove the generator mounting bolts.
  6. Remove the generator.

    7. Object Number: 227240 Size: SH
  7. Remove the generator pulley.

Installation Procedure

    Object Number: 227240 Size: SH

    Important: Replace the pulley of the new generator, if the pulley diameter of the new pulley is not exactly equal to the diameter of the old pulley.

    Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  1. Install the generator pulley.

    2. Tighten
    Tighten the generator shaft nut to 100 N·m (75 lb ft).


    Object Number: 227236 Size: SH
  2. Install the generator to the mounting bracket.

    3. Use mounting bolts in order to secure the generator.

  3. Install the drive belts.

    4. Object Number: 206221 Size: SH
  4. Tighten the generator mounting bolts.

    5. Tighten

        • Tighten the top mounting bolts to 88 N·m (65 lb ft).
        • Tighten the mounting bolts to 88 N·m (65 lb ft).
  5. Connect the wiring connectors to the back of the generator.

    6. Hold the hex-shaped base on the output terminal when you tighten the nuts.

    Tighten

        • Tighten the generator output terminal nut to 12 N·m (100 lb in).
        • Tighten the relay terminal nut to 2 N·m (20 lb in).
        • Tighten the indicator terminal nut to 2 N·m (20 lb in).
  6. Lower the cab. Refer to Cab Tilting in General Information.
  7. Connect the negative battery cable. Refer to Battery Cable Replacement .