(53)Air Intake Systems
Tractor
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Never service air cleaners with engine running. |
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Service air cleaners when RED band in indicator locks in visible position.
Primary Element
- 1. Remove covers and primary elements.
- 2. Clean inside of air cleaner housings.
- 3. Clean and inspect elements. See page 39.
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Always inspect primary element before and after cleaning with a light bulb inside element. Discard if any tears, rips or damage is evident. |
- 4. Install clean elements and covers.
- 5. Reset filter indicator.
If indicator shows RED shortly after installation of a primary element which has been cleaned approximately 6 times, change to another clean element.
NOTE: The primary element should be replaced after being cleaned a maximum of 6 times. Replace the element once a year even though it hasnot been cleaned 6 times.
If indicator still shows RED shortly after the installation of the clean primary element, change the secondary element.
Replace the secondary element at the time the primary element is cleaned for the fourth time.
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Always replace the secondary element. Do not attempt to reuse by cleaning. |
Secondary Element
- 1. Remove covers and primary elements.
- 2. Remove secondary element.
- 3. Cover air inlet opening.
- 4. Clean inside of air cleaner housing.
- 5. Inspect precleaner tube openings for dirt.
- 6. If cleaning is needed, remove precleaner and clean with pressure air or wash in warm water.
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When using pressure air, wear protective glasses and protective clothing. Use 30 PSI (2 kg/cm2) maximum pressure air for cleaning purposes. |
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- 7. Dry and install precleaner and cap.
- 8. Uncover air inlet openings.
- 9. Install new secondary elements.
- 10. Install the primary elements and covers. Tighten cover bolts finger tight to 3 lb. ft. (4 N·m).
| NOTICE |
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Do not use a tool to tighten. |
- 11. Reset filter indicator.
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Never service air cleaner with engine running. |
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Service air cleaners when RED band in indicator locks in visible position.
Primary Element
- 1. Remove inlet pipe. Remove hood. Remove covers and primary elements.
- 2. Clean inside of air cleaner housings.
- 3. Clean and inspect element. See page 39.
- 4. Install clean elements and covers. Tighten the cover bolts finger tight to 3 lb. ft. (4 N·m).
| NOTICE |
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Do not use a tool to tighten. |
- 5. Reset filter indicator.
NOTE: If indicator shows RED shortly after installation of a primary element which has been cleaned approximately 6 times, change to another clean element.
The primary element should be replaced after being cleaned a maximum of 6 times. Replace the element once a year even though it has not been cleaned 6 times.
If indicator still shows RED shortly after the installation of the clean primary element, change the secondary element.
Replace the secondary element at the time the primary element is cleaned for the fourth time.
| NOTICE |
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Always replace the secondary element. Do not attempt to reuse by cleaning. |
Secondary Element
- 1. Remove covers and primary elements. Remove secondary elements.
- 2. Cover air inlet openings.
- 3. Clean inside of air cleaner housings.
- 4. Inspect precleaner tube openings for dirt.
- 5. If cleaning is needed, remove precleaner and clean with pressure air or wash in warm water.
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When using pressure air, wear protective glasses and protective clothing. Use 30 PSI (2 kg/cm2) maximum pressure air for cleaning purposes. |
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- 6. Dry and install precleaner and cap.
- 7. Install new elements.
- 8. Install primary elements and covers. Tighten cover bolts finger tight to 3 lb. ft. (4 N·m).
| NOTICE |
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Do not use a tool to tighten. |
- 9. Reset filter indicator.
- 10. Install hood and inlet pipe.
Cleaning Air Cleaner Elements: Pressure Air - 30 PSI (207 kPa) Maximum
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When using pressure air, wear safety face shield and protective clothing. Use 30 PSI (207 kPa) maximum pressure air for cleaning purposes. |
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| NOTICE |
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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.
- 1. Direct air inside element along length of pleats.
Water - 40 PSI (276 kPa) Maximum
- 2. Direct air outside along length of pleats. Direct air inside along length of pleats. Check element.
- 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 nonsudsing household detergent.
- 2. Rinse with clean water, see above.
- 3. Air dry thoroughly and check element.
Checking Element
- 1. Insert light inside clean and dry element and check. Discard element if tears or rips are found.
- 2. Wrap and store good elements in a clean dry place.
(54)Cooling Systems - Tractor and Scraper
Whenever draining and refilling the cooling system, always recheck the coolant level when the engine reaches normal operating temperature.
Stop engine. Remove cap slowly to relieve pressure. Maintain coolant level 1/2 inch (1 cm) below 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 Corrosion Inhibitor. Follow recommendations given on container.
Check specific gravity of antifreeze solution frequently in cold weather to assure adequate protection.
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Inhibitor contains alkali, avoid contact with skin and eyes. |
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NOTE: If machine is to be stored in, or shipped to an area with below freezing temperatures, refer to Item 48 on Page 33.
Cleaning the Cooling System
Engines' coolant at operating temperature, machine on level and engines stopped.
- 1. Turn filler caps slowly to relieve pressure, then remove caps.
- 2. Open tractor radiator drain valve and allow coolant to drain.
- 3. Open scraper radiator drain valve and allow coolant to drain.
- 4. Close drain valve and fill system with cleaning solution. 1
- 5. Start engine and run for 1/2 hour. Stop engine and drain cleaning solution.
- 6. Flush system with clean water until draining water is clear.
- 7. Close drain valve and fill system with neutralizing solution. 2
- 8. Start and run engine for 10 minutes. Stop engine and open drain valve.
- 9. Flush system with clean water.
- 10. Close drain valve and slowly add coolant. See REFILL CAPACITIES.
12 lb. Sodium Bisulphate (NaHSO4) per 10 gal. water (25 grams per liter).
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.
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Use all cleaning solutions with care. |
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(55)Differentials and Final Drives
Operate machine on level for a few minutes. Stop machine, lower scraper and set parking brake.
Tractor Differential
Maintain lubricant level between ADD and FULL marks on dipstick.
Scraper Differential
Maintain lubricant level between ADD and FULL marks on dipstick.
NOTE: If level is above FULL mark do not drain. Operate machine on level to permit lubricant level to equalize between differential and final drives. Recheck level.
Final Drives
- 1. Position wheels so drain plugs are at bottom.
- 2. Maintain lubricant level to bottom of fill plug opening.
(56)Transmissions
Machine level, scraper lowered, parking brake set, transmission oil warm and engine running at low idle.
Tractor
Maintain oil level between ADD and FULL mark on dipstick.
Scraper
Maintain oil level between ADD and FULL mark on dipstick.
(57)Fuel Systems - Tractor
Primary Filter
NOTE: Service primary element when fuel pressure gauge registers OUT with engine running.
- 1. Loosen nut and remove case and element.
- 2. Wash case and element in clean solvent.
- 3. Install element and case.
- 4. Start engine and check for leaks.
If fuel pressure gauge still registers OUT, change final fuel filter.
Final Fuel Filter
- 1. Remove used filters.
- 2. Clean filter bases. Make sure all of old seals are removed.
- 3. Coat seal of new filters with clean diesel fuel.
- 4. Install new filters by hand.
- 5. When seals contact bases, tighten 3/4 turn more.
- 6. Prime system, start engine and check for leaks.
Priming Fuel System
- 1. Move accelerator to off position and open vent valves.
- 2. Unlock priming pump plunger and operate pump.
- 3. When fuel flows free of air bubbles, lock plunger and close vent valve.
Scraper
Primary Filter
Service primary element when fuel pressure gauge registers OUT with engine running.
- 1. Loosen nut and remove case and element.
- 2. Wash case and element in clean solvent.
- 3. Install element and case.
- 4. Start engine and check for leaks.
If fuel pressure gauge still registers OUT, change final fuel filter.
Final Fuel Filter
- 1. Remove used filters.
- 2. Clean filter bases. Make sure all of old seals are removed.
- 3. Coat seal of new filters with clean diesel fuel.
- 4. Install new filters by hand.
- 5. When seals contact bases, tighten 3/4 turn more.
- 6. Prime system, start engine and check for leaks.
Priming Fuel System
- 1. Move governor control to OFF position.
- 2. Open vent valve. Unlock priming pump plunger and operate pump.
- 3. When fuel flows free of air bubbles, lock plunger and close vent valve.
Fuel Tank Caps - (Tractor and Scraper)
- 1. Remove tractor fuel tank cap.
- 2. Remove scraper fuel tank cap.
- 3. Disassemble caps and wash in clean solvent.
- 4. Reassemble caps and oil elements lightly.
- 5. Install caps.
(58)Seat Belt
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Seat belt must be replaced every 3 years, regardless of appearance. |
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Inspect seat belt and attaching devices. Replace seat belt or attaching devices if worn or damaged.
(59)Ejector Channel Rollers
Correct adjustment is 1/8 (3.2 mm) clearance between the roller flange and the horizontal face of the channel on each side of the scraper. Check measurement at several locations in ejector travel. Add or remove shims as required.
(60)Scraper Starter Pinion Housing
Remove fill plug. Maintain oil level to plug opening. Clean and install plug.
(61)Cutting Edges
- 1. Block bowl and apron before changing cutting edges or routing bits.
With two edges to each section, double wear can be obtained from each edge by rotating. Remove bolts and rotate 180°. Install bolts.
By exchanging sides, the end sections can be used four times. Remove bolts and exchange sides. Rotate 180° when necessary. Install bolts.
(62)Routing Bits
With two edges to each bit, double wear can be obtained from each bit. Remove bolts and install on opposite side. Install bolts.
NOTE: After removing cutting edges or routing bits, clean contact surfaces. Tighten bolts to torque values given on chart for ground engaging tools on page 49.
(63)Ejector Guide Rollers
- 1. To adjust loosen roller shaft clamp bolt.
- 2. Rotate shaft to position roller.
- 3. Rollers are properly adjusted when ejector operates freely without dragging or binding.
- 4. Tighten shaft clamp bolt.
(64)Ejector Carrier Rollers
- 1. To adjust, loosen roller shaft clamp bolt.
- 2. Rotate shaft to position roller.
- 3. Rollers are properly adjusted when ejector operates freely without dragging or binding.
- 4. Tighten shaft clamp bolt.