Cutting-Line Heads - Honda HHT25S Owner's Manual

CUTTING-LINE HEADS

All Honda trimmers come with either a manual or semi-matic cutting
head. Read this section to learn how to inspect, install new line, and
remove and install a cutting head from the trimmer.
A cutting-line head containing nylon monofilament line and a debris
shield with a cutoff knife is standard equipment. The shield's cutoff
knife automatically removes any excess line that is released from the
cutting head.
The U-type handlebar trimmers are supplied with two different debris
shields. Use the debris shield with the cutoff knife when the
cutting-line head is installed.
Nylon monofilament line is suitable for cutting grass and ordinary
weeds, but not brush and woody growth.
CUTTING-LINE HEAD
CUTOFF KNIFE
(inside the debris shield)
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 22). For the semi-matic head, verify the
spool is locked in place (page
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 semi-matic head has a spring-loaded round button
on the bottom of the head.
Do not use any kind of metal, wire, or wire rope line on the trimmer.
Use only Honda Genuine replacement nylon trimmer line or
equivalent.
Honda trimmers come standard with low noise line. Using non-Honda
line may result in increased noise levels.
For original, factory-installed Honda cutting-line heads, use only nylon
monofilament line in the line sizes shown below.
HHT25S
HHT35S
See page 28 for replacement parts information.
NYLON MONOFILAMENT LINE
CUTTING-LINE HEAD
DEBRIS SHIELD
23). For both head styles, check for any
0.095 in
0.095 or 0.105 in
Manual-Feed Cutting-Line Head
Line is released from the cutting head by manually pulling and turning
the spool with the trimmer engine stopped.
HOUSING
1. Clean any mud, dirt, debris, etc. from the area around the trimmer
head; otherwise, it will be more difficult to service.
2. Rotate the left-hand threaded knob in the direction of the arrow and
remove the knob.
Remove the spring and spool from the housing then remove any
remaining old line from the spool.
(left-hand thread)
3. Measure approximately
20 feet (6 meters) of line,
then thread one end
through the hole in the
ridge on the spool. Pull
the line until the two line
lengths are equal.
4. Wind both lines tightly and
evenly from side-to-side
ignoring the ridge. Feed the
line while turning the spool
in the direction of the arrow.
Do not allow the lines to get
twisted.
It is important to prevent the
two lines from getting
twisted over each other.
Position a finger between
the lines as you turn the
spool to prevent the lines
from twisting.
To release more line,
pull the spool and turn
it counterclockwise.
SPOOL
HOUSING
SHAFT
SPOOL
SPRING
KNOB
NYLON
LINE
SPOOL
21