Yard-Man YM26CO - Manual (Page 12)

12
SECTION 7: MAINTENANCE AND REPAIR INSTRUCTIONS
WARNING: To prevent serious injury, never
perform maintenance or repairs with unit
running. Always service and repair a cool
unit. Disconnect the spark plug wire to
ensure that the unit cannot start.
Maintenance Schedule
Perform these required maintenance procedures at the
frequency stated in the table. These procedures should
also be a part of any seasonal tune-up.
NOTE: Some maintenance procedures may require
special tools or skills. If you are unsure about
these procedures take your unit to any non-road
engine repair establishment, individual or
authorized service dealer.
NOTE: Maintenance, replacement, or repair of the emission
control devices and system may be performed by
any non-road engine repair establishment, individual
or authorized service dealer.
Line Installation
This section covers both SplitLine™ and standard single
line installation.
Always use Genuine Factory Parts™ 0.080 in. (2.03 mm)
replacement line. Using line other than the specified may
make the engine overheat or fail.
WARNING: Never use metal-reinforced line,
wire, chain or rope. These can break off
and become dangerous projectiles.
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 counterclockwise. See Figure 17. 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. See
Figure 18.
3. Remove spring from the inner reel. See Figure 18.
4. Use a clean cloth to wipe the inner reel, spring, shaft,
and inner surface of the outer spool.
Bump Knob
Bolt
Inner Reel
Spring
Outer Spool
Figure 17
Figure 18
FREQUENCY MAINTENANCE REQUIRED REFER TO
Before starting engine
Fill fuel tank with fresh fuel
Check oil Page 9
Page 14
Every 10 hours Clean and re-oil air filter Page 16
First change at 10 hours
Every 25 hours thereafter
Every 25 hours Change oil
Change oil
Clean spark arrestor Page 15
Page 15
Page 19
10 hours on new engine
Every 25 hours
Every 25 hours Check rocker arm to valve clearance and adjust
Check rocker arm to valve clearance and adjust
Check spark plug condition and gap Page 17
Page 17
Page 19