Troy-Bilt TB590 EC Operator's Manual page 8

SINGLE LINE INSTALLATION
Go To Step 8 for SplitLine™ Installation
6. Take approximately 18 feet (6 m) of new
trimming line, loop it into two equal lengths.
Insert each end of the line through one of the
two holes in the inner reel (Fig. 31). Pull the line
through the inner reel so that the loop is as small
as possible.
7. Wind the lines in tight even layers, onto the reel
(Fig. 32). Wind the line in the direction indicated
on the inner reel. Place your index finger
between the two lines to stop the lines from
overlapping. Do not overlap the ends of the line.
Proceed to step 11.
SPLITLINE™ INSTALLATION
8. Take approximately 9 feet (3 m) of new
trimming line. Insert one end of the line
through one of the two holes in the inner reel
(Fig. 33). Pull the line through the inner reel
until only about 4 inches is left out.
9. 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. 34).
10.Before winding, split the line back about 6 inches.
11.Wind the line in tight even layers in the
direction indicated on the inner reel.
NOTE: Failure to wind the line in the direction
indicated will cause the cutting attachment to
operate incorrectly.
12.Insert the ends of the line into the two holding
slots (Fig. 34).
13.Insert the ends of the line through the eyelets
in the outer spool and place inner reel with
spring inside the outer spool (Fig. 35). 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 reel.
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 counterclockwise.
Tighten securely.
INSTALLING A PREWOUND REEL
1. Hold the outer spool with one hand and unscrew the bump knob clockwise
(Fig. 28). 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. 28).
3. Remove the spring from the old inner reel (Fig. 28).
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. 35).
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
counterclockwise. Tighten securely.
CHECKING THE OIL LEVEL
WARNING:
To prevent extensive engine wear and damage to
the unit, always maintain the proper oil level in the crankcase.
Never operate the unit with a low oil level.
The importance of checking and maintaining the proper oil level in the crankcase cannot
be overemphasized. Check oil before each use:
1. Stop the engine and allow oil to drain into the
crankcase.
2. Place the engine on a flat, level surface with the
cutting head shield hanging off a work bench or
table to get a proper oil level reading (Fig. 36).
3. Keep dirt, grass clippings and other debris out
of the engine. Clean the area around the
dipstick before removing it.
8
MAINTENANCE AND REPAIR INSTRUCTIONS
Loop
Fig. 31
Fig. 32
Loop
Fig. 33
Tab
Fig. 34
Fig. 35
Fig. 36
4. Remove the oil fill plug.
5. Look into the oil fill hole, use a flashlight if
needed. The oil should be just touching the
inner most thread (Fig. 37).6.
level is not touching the inner most thread on
the oil fill hole, add a small amount of oil to
the oil fill hole and recheck (Fig. 37). Repeat
this procedure until the oil level reaches the
inner most thread on the oil fill hole.
NOTE: Do not overfill the unit.
NOTE: Make sure the O-ring is in place on the oil fill
plug when checking and changing the oil (Fig. 38).
CHANGING THE OIL
CAUTION:
Wear gloves to prevent
injury when handling the unit.
For a new engine, change the oil after the first 10
hours of operation. Change the oil while the
engine is still warm. The oil will flow freely and
carry away more impurities.
1. Unplug spark plug boot to prevent accidental
starting.
2. Remove the oil fill plug.
3. Pour the oil out of the oil fill hole and into a
container by tipping the unit to a vertical
position (Fig. 39). Allow ample time for
complete drainage.
4. Wipe up any oil residue on the unit and clean
up any oil that may have spilled. Dispose of
the oil according to Federal, State and local
regulations.
5. Refill the crankcase with 3.04 fluid ounce (90
ml) of SAE 30 SF, SG, SH oil (Fig. 40).
NOTE: Use the bottle and spout saved from initial
use to measure the correct amount of oil. The top
of the label on the bottle measures approximately
3.04 ounces (90 ml) (Fig. 41). Check the level, See
Checking the Oil Level. If the level is low, add a
small amount of oil and recheck. Do not overfill
(Fig. 37).
6. Replace the oil fill plug.
7. Reconnect the spark plug boot.
AIR FILTER MAINTENANCE
WARNING:
To avoid serious personal injury, always turn the
unit off and allow it to cool before you clean or service it.
Cleaning the Air Filter
Failure to maintain your air filter properly can
result in poor performance or can cause
permanent damage to your engine.
1. Open the air filter cover. Push the tab on the
under side of the cover inward. Then pull the
air filter cover out and up. (Fig. 42).
2. Remove the air filter (Fig. 46).
3. Wash the filter in detergent and water. Rinse
the filter thoroughly and allow it to dry.
4. Apply enough clean SAE 30 motor oil to
lightly coat the filter.
5. Squeeze the filter to spread and remove
excess oil.
6. Replace the filter (Fig. 43).
NOTE: If the unit is operated without the air filter,
you will VOID the warranty.
7. Reinstall the air filter cover. Position the slots
on the top of the air filter cover onto the tabs at the top of the back plate
(Fig. 43).
8. Swing the cover down until the tab on the air filter backplate snaps into
place in the slot on the air filter cover (Fig. 42).
If the oil
Max Oil Fill Line
Fig. 37
Oil Fill Plug
O-Ring
Oil Fill Hole
Fig. 38
Fig. 39
Fig. 40
Fill Line
Fig. 41
Air Filter Cover
Air Filter
Tab
Fig. 42
Back Plate
Air Filter
Locking Tab
Fig. 43
Tabs