Troy-Bilt 182826 TB4000 - Manual (Page 18)

18
Section 6
Maintenance
NOTE: Some maintenance procedures may require
special tools or skills. If you are unsure about these
procedures take your unit to an authorized service
dealer.
MAINTENANCE SCHEDULE
These required maintenance procedures should be
performed at the frequency stated in the table. They
should also be included as part of any seasonal tune-
up.
MAINTENANCE NEEDED
Fill fuel tank with fresh unleaded fuel
Check oil
Change oil
Clean and re-oil air filter.
Change oil
Check rocker arm to valve clearance and adjust as required
Check spark plug condition and gap
WHEN
Before Starting Engine
After the First 10 Hours of Use
Every 10 Hours
Every 25 Hours
Every 50 Hours
GO TO:
Page 14
Page 20
Page 20
Page 21
Page 20
Page 22-23
Page 23
To prevent serious injury, never do maintenance
or repairs with unit running. Always do mainte-
nance and repairs on a cool unit. Disconnect
spark plug wire to ensure the unit will not start.
LINE INSTALLATION
This section covers both Membrane line and standard
single line installation.
Always use manufacturer’s 0.095 inch (2.41 mm)
replacement line. Line other than specified may make
the engine overheat or fail.
Never use metal-reinforced line, wire, chain, or
rope, etc. These can break off and become a
dangerous projectile.
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. 6-1). 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. 6-1).
3. Remove spring from the inner reel (Fig. 6-1).
4. Use a clean cloth to clean the the inner reel, spring,
shaft, and inner surface of the outer spool.
Indexing Teeth
Inner Reel
Spring
Outer Spool
Bump Knob
Bolt
Fig. 6-1
Fig. 6-2