BA-SERIES Trowel Troubleshooting Trowel

BA-SERIES TROWEL — TROUBLESHOOTING (TROWEL)

TABLE 6. TROUBLESHOOTING

SYMPTOM	POSSIBLE PROBLEM	SOLUTION

	Engine-Off switch malfunction?	Make sure that the Engine-Off switch is ON or replace switch if
	Engine-Off switch malfunction?	necessary.
		necessary.

Engine running rough or not at	Fuel?	Look at the fuel system. Make sure there is fuel being supplied to
all.	Fuel?	the engine. Check to ensure that the fuel filter is not clogged.
all.

	Ignition?	Check to ensure that the ignition switch has power and is
	Ignition?	functioning correctly.
		functioning correctly.

	Other problems?	Consult engine manufacturer’s manual.

Safety Engine-Offl switch not	Loose wire connections?	Check wiring. Replace as necessary.
functioning.
functioning.	Bad contacts?	Replace switch.
	Bad contacts?	Replace switch.

		Make certain blades are in good condition, not excessively worn.
		Finish blades should measure no less than 2" (50mm) from the
	Blades?	blade bar to the trailing edge, combo blades should measure no
		less that 3.5" (89mm). Trailing edge of blade should be straight
		and parallel to the blade bar.

		Check that all blades are set at the same pitch angle as
	Spider?	measured at the spider. A field adjustment tool is available for
		height adjustment of the trowel arms (see Optional Equipment).

	Bent trowel arms?	Check the spider assembly for bent trowel arms. If one of the
	Bent trowel arms?	arms is even slightly bent, replace it immediately.
		arms is even slightly bent, replace it immediately.
If trowel “bounces, rolls
If trowel “bounces, rolls		Check the trowel arm bushings for tightness. This can be done by
concrete, or makes uneven
swirls in concrete”.	Trowel arm bushings?	moving the trowel arms up and down. If there is more than 1/8"
	Trowel arm bushings?	(3.2 mm) of travel at the tip of the arm, the bushings should be

		replaced. All bushings should be replaced at the same time.

	Thrust collar?	Check the flatness of the thrust collar by rotating it on the spider.
	Thrust collar?	If it varies by more than 0.02" (0.5 mm) replace the thrust collar.


		Check the thrust collar by rocking it on the spider. If it can tilt
	Thrust collar bushing?	more than 3/32" (2.4 mm) [as measured at the thrust collar O.D.],
		replace the bushing in the thrust collar.

	Thrust bearing worn?	Check the thrust bearing to see that it is spinning free. Note:
	Thrust bearing worn?	Thrust cap, replace if necessary.
		Thrust cap, replace if necessary.

		The main output shaft of the gearbox assembly should be
	Main shaft?	checked for straightness. The main shaft must run straight and
	Main shaft?	cannot be more than 0.003" (0.08 mm) out of round at the spider

		attachment point.
Machine has a perceptible
Machine has a perceptible		Check to make sure that both fingers of the yoke press evenly on
rolling motion while running.	Yoke?
rolling motion while running.	Yoke?	the wear cap. Replace yoke as necessary.
		the wear cap. Replace yoke as necessary.

		Check to ensure that each blade is adjusted to have the same
	Blade Pitch?	pitch as all other blades. Adjust per maintenance section in
		manual.

PAGE 36 — BA-SERIES WALK-BEHIND TROWEL— OPERATION & PARTS MANUAL — REV. #2 (03/19/04)

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