See the engine manual supplied
NOTEwith your machine for appropriate engine maintenance schedule
and troubleshooting guide for problems.
At the front of the book (Page 10) there is a “Daily
CAUTION
ALWAYS allow the engine to cool before servicing. NEVER attempt any maintenance work on a hot! engine.
CAUTION
Disconnect the spark plug wire from the spark plug and secure away from the engine before performing maintenance or adjustments on the machine.
MAINTENANCE SCHEDULE
Daily
1.Check the oil level in the engine crankcase and gear box, fill as necessary.
2.Check
Weekly (50-60 Hours)
1.Relube arms, thrust collar and clutch
2.Replace blades if necessary.
3.Check and clean or replace the engine air filter as necessary.
4.Replace engine oil and filter as necessary, see engine manual.
Monthly (200-300 Hours)
1.Remove, clean, reinstall and relube the arms and thrust collar. Adjust the blade arms.
Yearly (2000-2500 Hours)
1.Check and replace if necessary the arm bushings, thrust collar bushings and shaft seals.
2.Check pitch control cables for wear.
3.Adjust blade speed.
Refer to pages 21 and 22 for oil and lube procedures.
CA4HCTROWEL — MAINTENANCE
Trowel Arm Adjustment
Use the following procedure to check and adjust trowel arms, and check for worn or damaged components when it becomes apparent that the trowel is finishing poorly or in need of routine maintenance.
Look for the following indications. Trowel arm alignment, worn spider bushings or bent trowel arms may the cause.
■Are blades wearing unevenly? Is one blade completely worn out while the others look new?
■Does the machine have a perceptible rolling or bouncing motion when in use?
■Look at the machine while it is running; do the guard rings “rock up and down” relative to the ground?
1. Place the trowel in a FLAT, LEVEL area.
A level, clean area to test the trowel prior to and after is essential. Any unlevel spots in the floor or debris under the trowel blades will give an incorrect perception of adjustment. Ideally, a 5 x 5 Ft. (1.5 x 1.5 Meter)
2.Pitch the blades as flat as possible.The adjustment bolts should all barely make contact with the lowerwearplateon the spider. If one is not making contact, adjustment will be necessary.(Item 1, Figure 30).
Figure 30 illustrates, "incorrect alignment", worn spider bushings or bent trowel arms. Check that the adjustment bolt is barely touching (0.10" max. clearance) lower wear plate. All alignment bolts should be spaced the same distance from the lower wear plate.
1
42
3
1Adjustment Bolt
2Lower Wear Plate
3Surface
4"Dished" Effect on Finished Concrete
Figure 30. Incorrect Spider Plate Alignment
Figure 31 illustrates the "correct alignment " for a spider plate (as shipped from the factory).
CA4HC
