MTD H70SS Trimmer User Manual


 
6
Loop
Fig. 15
Line Installation
This section covers both SplitLine™ and standard single line
installation.
Always use original equipment manufacturer 0.105 in. (2.67
mm) replacement line. Using line other than the specified may
make the engine overheat or fail.
There are two methods to replace the trimming line:
• Wind the inner reel with new line
• Install a prewound inner reel
Winding the Existing Inner Reel
1. Hold the outer spool with one hand and unscrew the Bump
Knob clockwise (Fig. 12). Inspect the bolt inside the Bump
Knob to make sure it moves freely. Replace the Bump
Knob if damaged.
2. Remove the inner reel from the outer spool
(Fig. 12).
3. Remove spring from the inner reel (Fig. 12).
4. Use a clean cloth to clean the the inner reel, spring, shaft,
and inner surface of the outer spool.
5. Check the indexing teeth on the inner reel and outer spool
for wear (Fig. 13). If necessary, remove burrs or replace the
reel and spool.
WARNING: Never use metal-reinforced line, wire,
chain or rope. These can break off and become
dangerous projectiles.
NOTE: SplitLine™ can only be used with the inner reel with
the slotted holes. Single line can be used on either type
of inner reel. Use figure 15 to identify the inner reel you
have.
NOTE: Always use the correct line length when installing
trimming line on the unit. The line may not release
properly if the line is too long.
SplitLine™ Installation
6. Take approximately 10 feet (3 m) of new trimming line.
Insert one end of the line through one of the two holes in
the inner reel (Fig. 15). Pull the line through the inner reel
until only about 4 inches is left out.
7. Insert the end of the line into the open hole in the inner reel
and pull the line tight to make the loop as small as possible
(Fig. 16).
8. Before winding, split the line back about 6 inches.
Bump Knob
Bolt
Inner Reel
Spring
Outer Spool
Fig. 12
Indexing Teeth
Fig. 13
Fig. 14
Slotted Holes
MAINTENANCE AND REPAIR INSTRUCTIONS