Yokota Y-41A, Инструкция по эксплуатации

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-37-
Immediately stop
using the tool.
〇 Ask your YOKOTA dealer
for repair.
The tool does not rotate under no load. The tool rotates under no load.
Countermeasures
Symptoms
Supposed causes
● Symptoms of troubles and countermeasures
The tool
does not
work.
(No pulsing)
The oil pulse
unit slips.
When under load
Main shaft does
not rotate even
if it is turned by
fingers.
Main shaft
rotates if it
is turned by
fingers.
The tool
does not
stop even
after a
throttle lever
is released.
Dust contamination Seized main shaft bushing Damaged ball bearing Damaged vane Motor part seizure Motor part seizure Too low air pressure Too low air pressure Faulty assembled motor Pulse unit seizure Damaged spring for blades Damaged knock pin of the liner Damaged spring for blades Oil leak Low T
emperature
Malfunction of a throttle
If there is no improvement with
above countermeasures and repair.
W
arming-up operation
Confirmation of air pressure
The repair is authorized.
Yes
Repair
No