Cutting Attachments; Cutting-Line Heads - Honda UMK431 Owner's Manual

SERVICING YOUR HONDA TRIMMER
CUTTING ATTACHMENTS
There are several cutting attachments for your
trimmer. Use the following section to inspect,
remove, service and install a standard (factory-
installed) cutting attachment.
Always turn the engine switch to the OFF
position, and disconnect the spark plug cap
before performing any inspection, adjustment or
maintenance on the trimmer.
Cutting-Line Heads
All Honda trimmers come with either a manual or
semiautomatic cutting head. Read this section to
learn how to inspect, install new line, and remove
and install a cutting head from the trimmer.
Inspection
Make sure the nylon line is only sticking out of the
metal eyelets on the head. If any of the line has
come off the spool, follow the "Installing
Replacement Nylon Line" instructions in this
section to disassemble the spool and replace the
line.
Examine the entire head area, including the
debris shield, and clear or clean it free from dirt,
debris, loose string, wire, or any other foreign
materials.
For the manual feed head, make sure the three-
sided knob is correctly tightened (page 35).
For the semiautomatic head, verify the spool
cover is locked in place (page 36).
For both head styles, check.for any cracks in the
plastic, and replace any damaged parts.
Installing Replacement Nylon Line
First, determine which cutting-line head style is on
your trimmer. A manual-feed trimmer head has a
three-sided knob on the bottom of the head, while
the semiautomatic head has a spring-loaded
round button on the bottom of the head.
Use only the line size specified for the trimmer
head. For original, factory-installed Honda cutting-
line heads, use 0.095- or 0.1 05-inch-diameter
nylon line. Do not use any kind of metal, wire or
wire rope line on the trimmer. Use only genuine
Honda replacement nylon trimmer line or the
equivalent.
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