951 TRAXCAVATOR When Required Caterpillar

(33)Air Intake System

Service elements when indicator shows RED.

Never service air cleaner elements with engine running.

1. Remove cover and primary element.

2. Clean inside body.

3. Clean cover.

4. Clean and inspect element. (See page 29).

5. Install clean element and cover.

6. Reset service indicator.

If indicator shows RED shortly after cleaning primary element and element has been cleaned 6 to 8 times, change element.

If new primary element was used and indicator shows RED, clean secondary element.

Servicing Secondary Element

1. Remove cover and primary element.

2. Remove secondary element.

3. Cover air inlet opening.

4. Clean and inspect element. (See page 29) Use new gasket.

5. Uncover air inlet opening.

6. Install secondary element. Tighten nuts to 20 ± 5 lb. ft. (2,8 ± 0,7 mkg.)

7. Install primary element and cover. Reset indicator.

If indicator shows RED shortly after cleaning secondary element, change element.

Cleaning Air Cleaner Elements

Pressure Air - 30 PSI (2 kg/cm²) Maximum

1. Direct air inside element along length of pleats.

2. Direct air outside along length of pleats. Direct air inside along length of pleats.

3. Check element.

Water - 40 PSI (3 kg/cm²) Maximum

1. Direct water inside element along length of pleats.

2. Direct water outside along length of pleats. Rinse element.

3. Air dry thoroughly. Check element.

Detergent

1. Wash in warm water and non-sudsing household detergent.

2. Rinse with clean water (40 PSI (3 kg/cm²) maximum). See above.

3. Air dry thoroughly. Check element.

Checking Element

1. Insert light inside clean and dry element. Check and discard element if pinholes or tears are found.

2. Wrap and store good elements in a clean dry place.

Do not clean elements by bumping or tapping.

Have spare elements on hand to use while cleaning used elements.

Do not use elements with damaged pleats, gaskets or seals.

(34)Fuel System

Primary Fuel Filter - Clean When Fuel Pressure Gauge Registers OUT

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Lift Arm Support must be in place.

1. Close fuel valve.

2. Remove bowl and element.

3. Wash element and bowl in clean solvent.

5. Install element and bowl.

6. Open fuel valve and start engine.

Change final fuel filter if pressure gauge still registers OUT with engine running.

Final Fuel Filter

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Lift Arm Support must be in place.

1. Close fuel valve.

2. Remove filter element.

3. Clean gasket surface of filter base.

4. Lubricate filter gasket with diesel fuel.

5. Install new filter. Tighten until gasket surface contacts base, then tighten additional 1/2turn.

6. Open fuel valve. Prime fuel system.

7. Start engine and check for leaks.

Priming Fuel System

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Lift Arm Support must be in place.

1. Open vent valve.

2. Unlock priming pump.

3. Operate pump plunger up and down until ...

4. Flow of fuel from drain tube is free of air bubbles.

5. Close vent valve and lock priming pump.

(35)Cooling System

Whenever draining and refilling the cooling system, always recheck the coolant level when the engine reaches normal operating temperature. Remove cap and add coolant to within 1/2 inch (1 cm) of the bottom of the fill pipe.

Use clean water that is low in scale forming minerals - not softened water.

Never add coolant to an overheated engine. Allow engine to cool first.

Add AVSpare Rust Inhibitors to coolant except when permanent-type antifreeze containing rust inhibitors.

Check specific gravity of antifreeze frequently in cold weather to assure adequate protection.

Cleaning the Cooling System

1. Run the engine until water temperature gauge registers NORMAL. Park machine on level ground and stop engine.

2. Turn filler cap slowly to relieve pressure, then remove the cap.

3. Open radiator drain valve and drain coolant.

4. Close drain valve. Fill system with cleaning solution. ¹

5. Start and run engine for 1/2hour.

6. Stop engine and drain cleaning solution.

7. Flush the system with clean water until draining water is clear.

8. Close drain valve. Fill system with neutralizing solution. ²

9. Start and run engine 10 minutes.

10. Stop engine and drain neutralizing solution.

11. Flush system with clean water.

12. Close drain valve. Add coolant to proper level. Recheck coolant level when engine is at normal operating temperature.

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¹2 lb. Sodium Bisulphate (NaHSO₄) per 10 gal. water (25 grams per liter).

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²1/2 lb. Sodium Carbonate Crystals (Na₂CO₃, 10 H₂O) per 10 gal. water (6 grams per liter).

NOTE: Most commercial cooling system cleaners may be used.

(36)Bucket Teeth - Replace Tip

1. Drive pin out.

2. Slide tip off.

3. Check plug. Metal part of plug must be toward pin hole.

4. Install tip in either digger or runner position.

5. Slide tip over adapter to align pin holes and install pin.

(37)Ripper Tip - Replace

1. Drive pin out.

2. Slide tip off

3. Check plug. Metal part of plug must be toward pin hole.

4. Install tip in either digger (left) or runner (right) position.

5. Slide tip over shank to align pin holes and install pin.

(38)Bucket Cutting Edge - Check - Replace

Check bucket cutting edge for wear. Replace when worn back to weld.

(39)Hydraulic Cylinder - Shim adjusted rod packing

1. Lower bucket and stop engine.

2. Move hydraulic controls to relieve pressure.

3. Remove bolts and slide flange away from cylinder head.

4. Cut and remove 1 shim.

5. Slide flange back and install bolts. Start engine and check for leaks.

6. If still leaking, remove another shim. Leave at least 2 shims. If packing still leaks, see your AVSpare dealer.