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| TROUBLESHOOTING (TROWEL) | ||
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| TABLE 4. TROUBLESHOOTING (TROWEL) |
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| SYMPTOM | POSSIBLE PROBLEM |
| SOLUTION |
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| Kill switch malfunction? |
| Make sure that the kill switch is ON or replace switch if |
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| necessary. |
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| Engine running rough or not at | Fuel? |
| Look at the fuel system. Make sure there is fuel being supplied to |
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| the engine. Check to ensure that the fuel filter is not clogged. |
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| Ignition? |
| Check to ensure that the ignition switch has power and is |
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| functioning correctly. |
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| Other problems? |
| Consult engine manufacturer’s manual. |
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| Safety kill switch not functioning. | Loose wire connections? |
| Check wiring. Replace as necessary. |
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| Bad contacts? |
| Replace switch. |
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| Make certain blades are in good condition, not excessively worn. |
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| Finish blades should measure no less than 2" (50mm) from the |
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| Blades? |
| blade bar to the trailing edge, combo blades should measure no |
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| less that 3.5" (89mm). Trailing edge of blade should be straight |
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| and parallel to the blade bar. |
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| Spider? |
| Check that all blades are set at the same pitch angle as |
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| measured at the spider. A field adjustment tool is available for |
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| height adjustment of the trowel arms (see Optional Equipment). |
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| Bent trowel arms? |
| Check the spider assembly for bent trowel arms. If one of the |
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| arms is even slightly bent, replace it immediately. |
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| If trowel “bounces, rolls |
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| Check the trowel arm bushings for tightness. This can be done by |
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| concrete, or makes uneven |
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| swirls in concrete”. | Trowel arm bushings? |
| moving the trowel arms up and down. If there is more than 1/8" |
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| (3.2 mm) of travel at the tip of the arm, the bushings should be |
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| replaced. All bushings should be replaced at the same time. |
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| Thrust collar? |
| Check the flatness of the thrust collar by rotating it on the spider. |
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| If it varies by more than 0.02" (0.5 mm) replace the thrust collar. |
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| Check the thrust collar by rocking it on the spider. If it can tilt |
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| Thrust collar bushing? |
| more than 3/32" (2.4 mm) [as measured at the thrust collar O.D.], |
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| replace the bushing in the thrust collar. |
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| Thrust bearing worn? |
| Check the thrust bearing to see that it is spinning free. Note: |
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| Thrust cap, replace if necessary. |
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| The main output shaft of the gearbox assembly should be |
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| Main shaft? |
| checked for straightness. The main shaft must run straight and |
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| cannot be more than 0.003" (0.08 mm) out of round at the spider |
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| attachment point. |
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| Machine has a perceptible |
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| Check to make sure that both fingers of the yoke press evenly on |
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| rolling motion while running. | Yoke? |
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| the wear cap. Replace yoke as necessary. |
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| Check to ensure that each blade is adjusted to have the same |
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| Blade Pitch? |
| pitch as all other blades. Adjust per maintenance section in |
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| manual. |
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