3304 & 3306 NATURAL GAS ENGINES Caterpillar


Accessory Drive (3306), Service Meter

Usage:

Remove And Install Accessory Drive (3306)

start by:

a) remove auxiliary pump (fresh water-3306)

1. Remove bolts (1) and remove accessory drive (2) from the front housing plate.

2. Put engine oil on O-ring seal (3) and the bore of the front housing plate.

3. Install accessory drive (2) on the front housing plate.

end by:

a) install auxiliary pump (fresh water-3306)

Remove And Install Service Meter

NOTE: Magneto is removed for photo purposes only.

1. Remove bolts (1), clamps (2) and service meter from the drive group.

2. Inspect seal (4) for damage and make a replacement if needed.

3. Put clean engine oil on seal (4) and install on service meter.

4. Put service meter (3) into position on the drive group. Make sure service meter is in correct position with the groove (slot) in the drive shaft.

5. Install clamps (2) and bolts (1). Tighten bolts (1) to a torque of 96 ± 24 lb.in. (10.9 ± 2.8 N·m).

Disassemble Accessory Drive (3306)

start by:

a) remove accessory drive (3306)

1. Remove O-ring seal (1).

2. Remove bolts (2) and washers that hold retainer plate (3) in place.

3. Remove retainer plate (3).

4. Remove shaft assembly (4) and bearings from housing (5).

5. Install tooling (A) on the shaft assembly (4).

6. Use a press to remove bearings (6) and (7) from the shaft assembly.

Assemble Accessory Drive (3306)

1. Install bearings (2) and (1) fully in the bore of the housing (3).

2. Lower the temperature of the shaft assembly (4). Install the shaft assembly (4). Make sure bearing (2) is installed fully against the shoulder on the shaft assembly.

3. Put retainer plate (5) into position in the shaft groove.

4. Put the washers and the bolts that hold the retainer plate in position, but do not tighten. Push thrust plate (5) toward the shaft groove as far as possible. Tighten the bolts that hold the thrust plate (5) in place.

5. Put lubrication on O-ring seal (7) with engine oil and install on housing (6).

end by:

a) install accessory drive (3306)

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