Before Starting
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621B TRACTOR-SCRAPER
[GEG05018]
MACHINE ARRANGEMENT
621B TRACTOR-SCRAPER
Safety
621B TRACTOR-SCRAPER
Controls
621B TRACTOR-SCRAPER
Before Starting
621B TRACTOR-SCRAPER
Starting The Engine
621B TRACTOR-SCRAPER
Moving The Tractor-Scraper
1.1. Walk-Around Checks
2.1. Positioning Seat
Walk-Around Checks
For your own safety, and maximum service life of the tractor-scraper, make a thorough walk-around inspection before mounting the tractor-scraper or starting the engine. Check for such items as loose bolts, trash build-up, oil or coolant leaks, condition and inflation of tires and condition of cutting edges.
- 1. Check crankcase oil level. Oil level must be in SAFE STARTING RANGE on ENGINE STOPPED side of dipstick.
- 2. Check coolant level. Maintain level 1/2 inch (1 cm) below bottom of fill pipe.
- 3. Check hydraulic system oil level. Maintain level above ADD mark in sight gauge or to FULL mark on dipstick.
- 4. Check air cleaner service indicator. If RED piston is locked in the visible postion, have air cleaner serviced.
- 5. Check fuel level.
- 6. Check transmission oil level. Oil should show on dipstick.
- 7. Check tire pressures. (Refer to TIRE INFLATION INFORMATION.)
- 8. Check controls for free movement.
Positioning Seat
Show/hide table
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Fasten seat belt securely. Always check condition of seat belt. Seat adjustment must be checked at the beginning of each shift and when operators change. |
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NOTE: Engine must be running and driver seated well back.
- 1. To adjust seat position, pull lever out and hold. Slide seat forward or backward as desired. Release lever and move seat slightly to lock lever.
- 2. Adjust damping valve for riding comfort.
- 1. Move lever up for firmer ride.
- 2. Move lever down for softer ride.
- 3. For height adjustment:
- 1. Move lever forward to raise seat position.
- 2. Move lever to center detent position for mid-height position.
- 3. Move lever backward to lower seat position.
Information System:
621B TRACTOR-SCRAPER
Controls
621B TRACTOR-SCRAPER
Safety
637 TRACTOR-SCRAPER
Transporting Hints
637 TRACTOR-SCRAPER
Operating Techniques
637 TRACTOR-SCRAPER
Moving The Tractor-Scraper
637 TRACTOR-SCRAPER
After Starting
637 TRACTOR-SCRAPER
Starting The Engines
637 TRACTOR-SCRAPER
Before Starting
637 TRACTOR-SCRAPER
Controls
637 TRACTOR-SCRAPER
Safety
983 TRAXCAVATOR
When Required
983 TRAXCAVATOR
Every 2000 Service Hours Or 1 Year
621B TRACTOR-SCRAPER
Starting The Engine
621B TRACTOR-SCRAPER
Moving The Tractor-Scraper
621B TRACTOR-SCRAPER
Operating Techniques
657 TRACTOR-SCRAPER
Safety
657 TRACTOR-SCRAPER
Controls
657 TRACTOR-SCRAPER
Before Starting
657 TRACTOR-SCRAPER
Starting The Engines
657 TRACTOR-SCRAPER
After Starting
657 TRACTOR-SCRAPER
Moving The Tractor-Scraper
657 TRACTOR-SCRAPER
Operating Techniques
657 TRACTOR-SCRAPER
Transporting Hints
992B WHEEL LOADER
Safety