Troy-Bilt TB490BC - Manual (Page 19)

19
MAINTENANCE AND REPAIR INSTRUCTIONS
INSTALLING A PREWOUND REEL
1. Hold the outer spool with one hand and unscrew the
bump knob clockwise (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. 31).
3. Remove the spring from the old inner reel
(Fig. 31).
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 counterclockwise. Tighten securely.
CHECKING THE 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 unit on a flat, level surface to get a proper
oil level reading.
3. Keep dirt, grass clippings and other debris out of the
engine. Clean the area around the oil fill plug/dipstick
before removing it.
4. Remove the oil fill plug/dipstick and wipe off oil.
Reinsert it all the way back in.
5. Remove the oil fill plug/dipstick and check the oil level.
Oil should be up to the top of the dipstick (Fig. 40).
6. If the level is low, add a small amount of oil to the oil
fill hole and recheck (Fig. 41). Repeat this procedure
until the oil level reaches the top of the dipstick.
NOTE: Do not overfill the unit.
Top of Dipstick
O-Ring
Oil Fill Plug/Dipstick
Fig. 40
Fig. 41
NOTE: Make sure the O-ring is in place on the oil fill
plug/dipstick when checking and changing the
oil (Fig. 41).
Oil Fill Plug/Dipstick
Oil Fill Hole
O-Ring
Full
Add 1.4-1.5 Oz.
(41-44 ml)
To prevent extensive
engine wear and
damage to the unit, always maintain the
proper oil level in the crankcase. Never
operate the unit with the oil level below the
bottom of the dipstick.
CAUTION: