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| troubleshooting |
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| Troubleshooting |
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Symptom | possible problem |
| Solution |
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| Engine ON/OFF Switch in "OFF" position |
| Make sure that the Engine ON/OFF Switch is ON |
| or malfunctioning? |
| or replace switch if necessary. |
| Centrifugal ON/OFF Switch in "OFF" |
| Place centrifugal stop switch in "ON" position. |
| position or malfunctioning? |
| Check wiring. Replace switch if necessary. |
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| Look at the fuel system. Make sure there is fuel |
Engine running rough or not at all. | Fuel? |
| being supplied to the engine. Check to ensure that |
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| the fuel fi lter is not clogged. |
| Ignition? |
| Check to ensure that the ignition switch has power |
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| and is functioning correctly. | |
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| Loose wire connections |
| Check wiring. Replace or repair as necessary. |
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| Bad contacts in ON/OFF switch? |
| Replace ON/OFF switch. |
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| Make certain blades are in good condition, not |
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| excessively worn. Finish blades should measure |
| Blades? |
| no less than 2"" (50mm) from the blade bar to |
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| the trailing edge, combo blades should measure | |
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| no less that 3.5"" (89mm). Trailing edge of blade |
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| should be straight and parallel to the blade bar. |
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| Check that all blades are set at the same |
| Pitch adjustment? |
| pitch angle as measured at the spider. A fi eld |
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| adjustment tool is available for height adjustment | |
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| of the trowel arms. (Contact Parts Dept.) |
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| Check the spider assembly for bent trowel arms. |
| Bent trowel arms? |
| If one of the arms is even slightly bent, replace it |
Trowel bounces, rolls concrete, or makes |
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| immediately. |
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uneven swirls in concrete. |
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| Check fi t of arms in spider. This can be done by |
| Spider? |
| moving the trowel arms up and down. If there is |
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| more than 1/8 inch (3.2 mm) of travel at the tip of | |
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| the arm, the spider and arms should be replaced. |
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| Check the fl atness of the thrust collar by rotating |
| Thrust collar? |
| it on the spider. If it varies by more than 0.02 inch |
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| (0.5 mm) replace the thrust collar. |
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| Check the thrust collar by rocking it on the spider. |
| Thrust collar bushing? |
| If it can tilt more than 3/32 inch (2.4 mm) - as |
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| measured at the thrust collar O.D., replace the | |
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| thrust collar. |
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| Thrust bearing worn? |
| Check the thrust bearing to see that it is spinning |
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| freely. Replace if necessary. | |
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page 40 — b46S90
