KNOVA KN AP-125B Manual Del Usuario página 7

MAINTENANCE
During the life of your machine, you will need to practice some
regular maintenance to keep your planer in peak operating
condition.
WARNING
When installing / removing and servicing any part of
the machine, make sure the cord is disconnected from
the power source. Failure to do so may result in serious
personal injury or death.
LUBRICATION
The cutter head elevation lead screw and the feed roller drive
chain need to be lubricated with light machine oil.
TO LUBRICATE THE PLANER:
Make sure the cord is disconnected from the power source.
Remove the crank handle, the top cover, the panels from
the both sides, and the inner cover.
MOTOR BRUSHES REPLACEMENT
The motor on KN AP-125B features two carbon brushes and
the life of the brush is affected by motor loads and usage.
TO CHECK & REPLACE THE BRUSHES:
Disconnect the cord from the power source.
Use a screw driver and unscrew the plastic covers, removing
the brushes. See figure-7 and figure-8.
Figure-7
Front motor brush
FEED ROLLERS
The feed rollers rotate in the spring loaded bushing blocks
maintain downward pressure while riding on the board.
If there is sawdust build up between the bracket and bushing
block, the roller may prevent the work-piece from passing
though the planer.
TO REMOVE THE SAWDUST BUILD UP FROM
THE FEED ROLLERS:
Disconnect the cord from the power source.
Uninstall the crank handle, top cover and side panels of
the machine.
Re-install the crank handle for use in the next step.
Motor brush
Daily before use, check the machine for loose mounting bolts,
damaged cord or any other unsafe condition.
After every 40-45 hours of operation, lubricate the elevation
lead screw, feed roller chain drive and check/replace motor
brushes.
Vacuum the wood chips from the table and wipe
the remaining sawdust from the machine and table
with a dry cloth.
Vacuum chips and dust from the lead screws and drive chain
and use mineral spirits with a brush to remove any built up
grime. Dry the parts using a shop rag.
Use some chain oil onto the drive chain and clean
the excessive oil using a rag.
Reinstall the sides and top cover and move the cutter-head
assembly up and down to distribute the lubricant on the lead
screws.
Figure-8
Read motor brush
Measure the length of the carbon tip.
If either brush is worn down to 1/4" (6mm) or less, replace
both as a set.
Place a wood block under the roller so that it is not touching
the cutter head.
Lower the cutter head using the crank handle until the roller
bushing block on either side lifts up from the bracket.
Clean the sawdust built up from the bushing block,
the bracket and the spring.
Raise the cutter head assembly and remove the wood block.
Repeat the above steps and clean the sawdust build up
from the second feed roller.
Remove the crank handle.
Reinstall the side panels, the top cover and the crank handle.
6
Motor brush