Periodic Servicing And Cleaning Of The Generator - Kubota J106-STD Operator's Manual

42 PERIODIC SERVICE
PERIODIC SERVICING AND CLEANING OF
THE GENERATOR
To avoid personal injury:
A Only a qualified electrical engineer
must be allowed to do the servicing
and cleaning.
A Before starting a periodic service,
disconnect the negative cable from
the battery's negative terminal to
keep off the automatic start/stop
device. Otherwise the device may get
activated during the servicing job,
possibly starting
unexpectedly
injured. Also draw out the starter key
beforehand.
A Before starting a periodic service,
stop the engine and wait until the
engine cools
Otherwise you may get scalded
yourself.
A Check on the generator periodically to keep it at full
capacity for a long time.
A It is prohibited to run the generator in a poorly-
ventilated, dusty or humid place. If the generator is
operated under a very dusty condition, dust and other
foreign substances may get sucked in through its air
intake. Such foreign substances may build up on
conductive parts like the couplers and carbon brush.
The deposits may cause poor contact, short-circuit or
earlier worn-out carbon brush.
A To avoid the above trouble, remove the cleaner cover,
and check the carbon brush holder, terminals,
couplers, and housing at regular intervals. If any
foreign substance is found accumulated on these
parts, clean them up.
A If any part is found discolored or deformed, replace
the part in question with new one.
A In practice, take the following procedure for the
periodic servicing and cleaning.
C Inspection procedure
A Check the carbon brush every 1000 hours of
operation.
A As the generator becomes dirty, remove the cleaner
cover and check all the parts inside.
A To clean up the parts, use a soft brush and take care
not to damage the cords and other parts. Wipe off
water and oil, if any, with waste cloth.
the engine
and getting you
down enough.
1. Loosen the three M6 x 12 mm lock screws of the
cleaner cover, and take out the cleaner cover.
(1) Cleaner cover
(2) Lock screw (M6 x 12 mm)
2. Checkpoints and clean-up zones
(1) Carbon brush holder assembly
(2) Coupler
(3) Coupler
(4) Coupler
(5) Diode stack terminal
Also remove dust and other foreign substances off the
housing and cords.
(1) Carbon brush holder assembly
(2) Coupler
(3) Coupler
(4) Coupler
(5) Diode stack terminal
3. Checking and cleaning the carbon brush holder
assembly
A Be careful not to remove the two M4 x 8 mm machine
screws of the two cords (3 and 4) during this job.
(1) Loosen the two M6 x 15 mm bolts (2) and take out
the carbon brush holder (1).
(2) Remove dust and other foreign substances off
the terminals and body of the carbon brush holder
assembly.
(3) Check the stretch allowance of the carbon brush
every 1000 hours of operation.