MTD Yard Machines LT31CS Operator's Manual page 21

MAINTENANCE AND REPAIR INSTRUCTIONS
NOTE: The spring must be assembled on the inner reel
before reassembling the cutting attachment.
14. Hold the inner reel in place and install the bump knob
by turning clockwise. Tighten securely.
INSTALLING A PREWOUND REEL
1. Hold the outer spool with one hand and unscrew the
bump knob counterclockwise (Fig. 31). Inspect the bolt
inside the bump knob to make sure it moves freely.
Replace the bump knob if damaged.
2. Remove the old inner reel from the outer spool
(Fig. 32).
3. Remove the spring from the old inner reel
(Fig. 32).
4. Place the spring in the new inner reel.
NOTE: The spring must be assembled on the inner reel
before reassembling the cutting attachment.
5. Insert the ends of the line through the eyelets in the
outer spool (Fig. 39).
6. Place the new inner reel inside the outer spool. Push the
inner reel and outer spool together. While holding the
inner reel and outer spool, grasp the ends and pull firmly
to release the line from the holding slots in the spool.
7. Hold the inner reel in place and install the bump knob
by turning clockwise. Tighten securely.
Spring
Fig. 39
LT31C
LINE INSTALLATION: SPEEDSPOOL
WARNING:
chain or rope. These can break off and
become dangerous projectiles.
Always use original equipment manufacturer 2.03 mm
(0.080 in) replacement line. Lines other than those
specified may make the engine overheat or fail.
There are two methods to replace the SpeedSpool
trimming line:
• Wind the inner reel with new line
• Install a pre-wound inner reel
Winding the Inner Reel With New Line
NOTE: It Is unnecessary to remove the bump knob to
install a new trimming line.
1. Cut two pieces of 2.03 mm (0.080 in) trimming line,
10 feet (3 m) long.
2. Hold the outer spool and turn the inner reel
counterclockwise to line up the arrows on the outer
spool and inner reel (Fig. 40).
WARNING:
when installing trimming line on the unit.
The line may not release properly if the line
is too long.
Top View Of The SpeedSpool
Outer Spool
Inner Reel
Never use metal-
reinforced line, wire,
Always use the
correct line length
®
Arrows
Bump Knob
Fig. 40
®
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