966M Tier 4, 966M Tier 4 Series XE, 972M Tier 4 and 972M Tier 4 Series XE Wheel Loaders Caterpillar

Removal Procedure

Start By:

1. Connect the steering frame lock.

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Illustration 1	g03330059

1. Raise hood (1) by activating switch (2). Turn battery disconnect switch (3) to the OFF position.
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   Illustration 2	g03348327

2. Remove clips (4), bolt (6), and hose (5).
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   Illustration 3	g03348368

3. Remove bolts (8). Remove four bolts (9) (two not shown). Remove upper shroud (7).
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   Illustration 4	g03351072

4. Cut cable strap (11) in order release wire (12) from heated nozzle (13). Remove bolt (10) in order to disconnect heated nozzle (13) from the combustion head.
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   Illustration 5	g03351081

5. Cut cable straps (14). Remove nozzle heater harness assembly (15).
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   Illustration 6	g03351166

6. Use Tooling (A) in order to remove O-ring seals (16) and (17) from heated nozzle (13). Discard the O-ring seals.

Installation Procedure

1. Install nozzle heater harness assembly (15) in the reverse order of removal.

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   Use caution when you are using isopropyl alcohol. Avoid prolonged skin contact with isopropyl alcohol. Vapors may be harmful if inhaled. Use only in a well ventilated area. Do not smoke while using isopropyl alcohol. Isopropyl alcohol is flammable. Do not use near an open flame or near welding operations. Keep isopropyl alcohol away from heated surfaces exceeding 482°C (900°F).

   Note: This connection is an electrical connection and cannot be lubricated with a petroleum-based lubricant. Isopropyl alcohol is the only approved lubrication for this connection.

   1. Lubricate new O-ring seals (16) and (17) with Tooling (B) prior to installation.