Multiquip BS46H90, BS46HLE, BS46H11 manual Or malfunctioning? Or replace switch if necessary

Models: BS46H11 BS46H90 BS46HLE

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troubleshooting

 

 

 

 

 

 

 

 

 

Troubleshooting (Walk-Behind Trowel)

 

Symptom

possible problem

 

Solution

 

 

 

 

 

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.

 

 

 

 

 

 

 

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

 

 

 

the fuel fi lter is not clogged.

 

Ignition?

 

Check to ensure that the ignition switch has power

 

 

and is functioning correctly.

 

 

 

 

 

 

 

 

Loose wire connections

 

Check wiring. Replace or repair as necessary.

 

 

 

 

 

Bad contacts in ON/OFF switch?

 

Replace ON/OFF switch.

 

 

 

 

 

 

 

Make certain blades are in good condition, not

 

 

 

excessively worn. Finish blades should measure

 

Blades?

 

no less than 2"" (50mm) from the 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 adjustment?

 

pitch angle as measured at the spider. A fi eld

 

 

adjustment tool is available for height adjustment

 

 

 

 

 

 

of the trowel arms. (Contact Parts Dept.)

 

 

 

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

 

 

immediately.

 

 

 

uneven swirls in concrete.

 

 

Check fi t of arms in spider. This can be done by

 

Spider?

 

moving the trowel arms up and down. If there is

 

 

more than 1/8 inch (3.2 mm) of travel at the tip of

 

 

 

 

 

 

the arm, the spider and arms should be replaced.

 

 

 

 

 

 

 

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

 

 

 

(0.5 mm) replace the thrust collar.

 

 

 

 

 

 

 

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

 

 

measured at the thrust collar O.D., replace the

 

 

 

 

 

 

thrust collar.

 

 

 

 

 

Thrust bearing worn?

 

Check the thrust bearing to see that it is spinning

 

 

freely. Replace if necessary.

 

 

 

 

 

 

 

page 40 — BS46H SERIES WALK-BEHIND TROWEL • operation and parts manUAL — rev. #2 (10/15/13)

Page 40
Image 40
Multiquip BS46H90, BS46HLE, BS46H11 manual Or malfunctioning? Or replace switch if necessary