16
3.5 Trouble Shooting
SYMPTOM
POSSIBLE CAUSES
SOLUTION
Engine does not start. Engine problem.
Consult engine manufacturer’s
service manual.
Machine out of
balance; wobbling
excessively.
Operator is over-steering.
Trowel arm(s) bent.
Trowel blade(s) bent.
Main shaft(s) bent due to
machine being dropped.
The movement of each gearbox
is controlled by “stops” to provide
the correct relationship of the
control arm movement to
machine movement. Excessive
pressure on control arms in any
direction will not increase
reaction time and can damage
steering controls causing
machine to wobble.
Replace trowel arms(s).
Replace trowel blade(s).
Replace main shaft(s).
Machine does not
move.
Drive belt broken.
Vacuum between bottom of
blades and surface of
concrete.
Key sheared in the main
shaft.
Replace drive belt.
Change pitch on blades to break
suction.
Replace damaged key.
Trowel noisy.
Trowel blades have
become misaligned and
are contacting each other
during rotation.
Sheared key.
Loose clutch.
Replace damaged blades. Align
blades so that one set
represents a (+) and the other an
(x) when viewed from above.
Check all keys in drive system.
Tighten clutch.
