983 TRAXCAVATOR When Required Caterpillar

(25)Transmission, Bevel Gear And Steering Clutch Compartment

Check oil level with oil warm, machine level, brake lock applied, engine at low idle and transmission in NEUTRAL. Maintain oil at FULL mark on gauge.

(26)Final Drives

Check oil level with Traxcavator level, equipment lowered, engine stopped and brake lock applied.

1. Remove final drive fill plugs.

2. Oil should be to level of fill plug openings.

3. Add oil as required. Install fill plugs.

(27)Track

Check adjustment. Correct adjustment allows 11/2to 2 inches (35 to 50 mm) sag at this point after forward movement.

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NOTICE
Do not attempt to tighten track when stop on adjusting rod is within 1/8 inch (3,2 mm) dimension A of stop on roller frame. Contact your AVSpare dealer for track service.

If track is too loose:

1. Loosen bolt and open valve access cover.

2. To tighten, add multipurpose-type grease at fill valve fitting.

3. Operate Traxcavator back and forth to equalize pressure. Recheck adjustment and dimension A.

4. Secure access cover.

If track is too tight:

1. Be sure idler can retract. Open access cover and loosen relief valve 1 turn to allow grease to escape.

2. Tighten relief valve when adjustment is correct. Close access cover.

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Never visually inspect relief valve or fill valve to see if grease is escaping. Always observe track to see if it has loosened.

3. Operate Traxcavator back and forth to equalize pressure.

4. Recheck adjustment.

If track did not loosen:

1. Remove guard and loosen fill valve 1 turn. Operate Traxcavator back and forth.

2. Loosen relief valve until it touches guard.

3. Loosen fill valve until it touches guard.

4. Tighten fill and relief valves, when adjustment is correct.

5. Install guard.

NOTE: Contact your AVSpare dealer if correct adjustment cannot be obtained.

(28)Sprocket Hub Bearings

1. Remove guards.

2. Place a 5 foot (1,5 m) bar between the track roller frame and the sprocket. Pry on bar. If side movement is noticeable, adjust bearings.

To Adjust:

1. Remove adjusting nut lock.

2. Remove cap and lock.

3. Loosen adjusting nut (clockwise) to loosen.

4. Tighten retaining nut to 1100-1200 lbs. ft. (150-165 mkg).

5. Tighten adjusting nut (counterclockwise). Use a 5 foot (1,5 m) extension on wrench.

6. Install adjusting nut lock.

7. Install lock and cover.

8. Install all guards.

(29)Engine Air Inlet System

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Never service air cleaner when engine is running.

Service air cleaner element if indicator shows RED with engine running.

Servicing Primary Element

1. Stop engine, open access door. Remove primary element.

2. Clean inside of air cleaner body.

3. Clean and inspect element. See Page 26. Install clean element.

If indicator shows RED shortly after installation of clean primary element, and element has been cleaned 6 to 8 times, install new element.

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

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NOTICE
Do not wash secondary element.

Servicing Secondary Element

1. Open access door and remove primary element. Remove secondary element.

2. Cover air inlet opening.

3. Uncover inlet opening. Install secondary element. Tighten to 20 ± 5 lb. ft. (2,8 ± 0,7 mkg).

4. Install primary element, close access door.

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. 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, air dry thoroughly and check element.

Detergent

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

2. Rinse with clean water, 40 PSI max. (3 kg/cm²), see above.

3. Air dry thoroughly and check element.

Checking Element

1. Insert light inside clean and dry element and check. Discard element if pinholes or tears are found.

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

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When using pressure air wear safety glasses and protective clothing. Use 30 PSI (2 kg/cm2) maximum pressure air for cleaning purposes.

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NOTICE
Do not clean elements by bumping or tapping. Do not use elements with damaged pleats, gaskets or seals.

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

(30)Fuel System

Primary Fuel Filter

1. Close fuel valve.

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Always install lift arm support bracket before servicing engine area.

2. Remove engine side guard. Loosen nut and remove case and element.

3. Wash element and case in clean solvent.

4. Install element. Install case. Install engine side guard.

5. Open fuel valve.

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

Final Fuel Filters

1. Close fuel valve.

2. Remove engine side guard. Remove filters.

3. Clean filter base gasket surfaces.

4. Lubricate gasket surfaces with diesel fuel.

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

6. Open fuel valve. Prime fuel system.

7. Start engine and check for fuel leaks.

8. Install engine side guard.

Priming the Fuel System

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Always install the lift arm support bracket before servicing engine area.

1. Remove engine side guard. Open vent valve.

2. Unlock fuel 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.

6. Install engine side guard.

Fuel Tank Cap

1. Remove fuel tank filler cap and disassemble.

2. Wash cap element in clean solvent.

3. Assemble cap, oil element lightly and install.

(31)Cooling System

Whenever draining and refilling the cooling system, always recheck the coolant level when the engine reaches normal operating temperature.

Remove cap slowly to relieve pressure. Maintain coolant level 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 it to cool first.

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Inhibitor contains alkali, avoid contact with skin and eyes.

Add AVSpare Corrosion Inhibitor. Follow recommendations given on container.

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

NOTE: If a machine is to be stored, or shipped to an area with below freezing temperatures, refer to item 24 on page 21.

Cleaning Cooling System - Run engine until coolant is warm.

1. Stop engine and loosen filler cap to release pressure. Remove filler cap.

2. Open drain valve and drain coolant.

3. Close drain valve and fill system with cleaning solution. ⁽¹⁾

4. Start engine and operate for 1/2 hour.

5. Stop engine and open valve. Flush system with clean water until draining water is clear.

6. Close drain valve and fill system with neutralizing solution. ⁽²⁾

7. Start engine and operate for 10 minutes.

8. Stop engine, open drain valve and flush system.

9. Close drain valve and add coolant to proper level.

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⁽¹⁾2 lb. Sodium Bisulphate (NaHSO₄) per 10 gal. water (mix 25 grams per 1 liter of water).

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⁽²⁾1/2 lb. Sodium Carbonate Crystals (Na₂CO₃·10 H₂O) per 10 gal. water (mix 6 grams per 1 liter of water).

NOTE: Most commercial type cooling system cleaners may be used.